A drill bit assembly for a reverse circulation down-the-hole hammer includes a percussion bit having a head portion with a cutting face at a forward end thereof with engagement means on the head portion for engagement with complementary engagement means on a drive chuck whereby rotational drive from the drive chuck may be transmitted to the percussion bit. Connection means are provided on the drive chuck adapted for connecting the drive chuck to a drive means of the down-the-hole hammer. The percussion bit includes a central bore in fluid communication with the cutting face of the bit for returning a sample of drilled cuttings to the surface, a first plurality of flushing grooves in an outer surface of the head portion, and a second plurality of flushing grooves in an outer surface of the head portion.
The present invention relates to a down-the-hole hammer comprising an outer wear sleeve and a sliding piston mounted for reciprocating movement within the outer wear sleeve to strike a percussion bit located at a forward end of the outer wear sleeve, wherein forward and rear drive chambers for the piston are disposed at a forward end and a rear end of the piston, respectively, such that pressurised air alternately supplied to the forward and rear drive chambers causes the reciprocating movement of the piston. The hammer further comprises an inner chamber and a control valve, wherein the control valve is arranged to alternately connect the inner chamber to a supply of pressurised air and to the forward chamber, and wherein an outer diameter of the inner chamber is smaller than an outer diameter of the rear chamber.
A grout valve assembly (100) comprising a body (101) having a central bore (102) therethrough, and a grout valve (103), comprising a moveable member (104) mounted in a valve chamber (114) in the central bore, the moveable member comprising a central fluid passage therethrough. The grout valve assembly also comprises at least one grout outlet (105) extending through the body from the central bore to an outer surface. The moveable member is biased in a rearward direction to a closed position in which the at least one grout outlet is obstructed by the moveable member. Fluid flowing through the central fluid passage acts on a forward pressure area (113) of the moveable member to urge it to the closed position. The assembly further comprises an opening member (115), insertable into the central bore to occlude the central fluid passage of the moveable member, thereby opening the valve.
E21B 33/13 - Procédés ou dispositifs de cimentation, de bouchage des trous, des fissures ou analogues
E21B 34/14 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits actionnés par le mouvement des outils, p. ex. obturateurs à manchons actionnés par des pistons ou par des outils à câble
E02D 5/34 - Pieux en béton ou analogue coulés en place
The present invention relates to a closed-loop hydraulic down-the-hole hammer. The hammer comprises an elongate shaft and a piston having a central bore therethrough, the piston slidably mounted for reciprocal movement on the shaft and arranged to impact a percussion bit, wherein forward and rear drive chambers for the piston are disposed between the piston and the shaft and wherein the forward chamber is separated from the rear chamber by an annular shoulder formed internally of the piston bore. The hammer also comprises a control valve to control reciprocation of the piston, wherein the control valve is arranged within the central bore of the piston. The hammer further comprises an outer wear sleeve, wherein the piston is housed within the outer wear sleeve. A supplementary rear drive chamber is disposed internally of the outer wear sleeve. According to another aspect of the invention, the hammer comprises a control valve housing, disposed at least partially within the central bore of the shaft at a forward end of the shaft and arranged to receive the control valve, the control valve housing having a tapered outer surface at a forward portion thereof and an annular flange connected to the shaft and having a tapered inner surface, corresponding in shape to and engageable with the tapered outer surface of the control valve housing, whereby the control valve housing is retained in the shaft by the annular flange. The hammer further comprises engagement means on the control valve housing slidably engageable with complementary engagement means on the shaft to prevent relative rotation therebetween.
The present invention relates to a drilling device. The device comprises at least one drill rod, the or each drill rod having a first cylindrical wall defining an elongate chamber for receiving a working fluid to form a fluid column, the length of the fluid column being equal to a total length of the elongate chambers of the or each drill rod. The device also comprises a displacement excitation device arranged at a proximal end of the fluid column and configured to excite the fluid column to cause the working fluid in the fluid column to oscillate, wherein the excitation device is configured to excite the fluid column at an excitation frequency at or within 10% of a natural frequency of the fluid column determined based on the fluid column having a fixed boundary condition at a proximal end thereof. The device further comprises a tool piston moveably mounted at a distal end of the fluid column and a drilling tool connected to the tool piston such that the oscillation of the working fluid in the fluid column imparts an oscillating force to the drilling tool.
E21B 1/28 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide par la pression d'un liquide agissant par impulsions
E21B 1/24 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide
The present invention relates to a drill bit assembly (1) for a reverse circulation down- the-hole hammer (100). The assembly comprises a percussion bit (2) having a head portion (3) with a cutting face (5) at a forward end thereof with engagement means (8) on the head portion for engagement with complementary engagement means (9) on a drive chuck whereby rotational drive from the drive chuck may be transmitted to the percussion bit. Connection means (11) are provided on the drive chuck adapted for connecting the drive chuck to a drive means of the down-the-hole hammer. The percussion bit comprises a central bore (13) in fluid communication with the cutting face of the bit for returning a sample of drilled cuttings to the surface, a first plurality (17) of flushing grooves in an outer surface of the head portion, configured to deliver a supply of flushing medium to the cutting face of the bit and a second plurality (18) of flushing grooves in an outer surface of the head portion, configured to deliver a supply of flushing medium to the central bore.
E21B 1/38 - Piston du type marteau, c.-à-d. dans lequel la tête de l'outil ou l'enclume sont frappées par l'organe d'impulsion
E21B 4/06 - Moyens de percussion mis en œuvre au fond du trou, p. ex. marteaux
E21B 4/10 - Moyens de percussion mis en œuvre au fond du trou, p. ex. marteaux le mouvement de rotation continu dans une seule direction de l'arbre ou des tiges de forage produisant des chocs consécutifs
E21B 4/16 - Moyens d'entraînement multiples au fond du trou, p. ex. pour le forage combiné par percussion et par rotationMoyens d'entraînement pour unités de forage à plusieurs trépans
E21B 6/00 - Moyens d'entraînement pour forage avec action combinée de percussion et de rotation
E21B 10/38 - Trépans à percussion caractérisés par des canaux ou des buses pour les fluides de forage
E21B 10/61 - Trépans caractérisés par des canaux ou des buses pour les fluides de forage caractérisés par la structure des buses
E21B 49/00 - Test pour déterminer la nature des parois des trous de forageEssais de couchesProcédés ou appareils pour prélever des échantillons du terrain ou de fluides en provenance des puits, spécialement adaptés au forage du sol ou aux puits
E21B 49/08 - Prélèvement d'échantillons de fluides ou test des fluides dans les trous de forage ou dans les puits
The present invention relates to a flapper valve for a percussion drill tool. The valve comprises a first side engageable with a planar surface of an element of the percussion drill tool to alternately close first and second fluid flow paths of the percussion drill tool. The planar surface comprises first and second apertures in fluid communication with the first and second fluid flow paths, respectively. The first side of the flapper valve comprises a first planar portion and a second planar portion and a first curved tip portion intermediate the first and second planar portions. The flapper valve is pivotable about the first curved tip portion between a first position, in which the first planar portion of the flapper valve is in sealing contact with the planar surface to close the first aperture, and a second position, in which the second planar portion of the flapper valve is in sealing contact with the planar surface to close the second aperture.
E21B 34/08 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits sensibles à l'écoulement ou à la pression du fluide obtenu
F16K 31/08 - Moyens de fonctionnementDispositifs de retour à la position de repos électriquesMoyens de fonctionnementDispositifs de retour à la position de repos magnétiques utilisant un aimant utilisant un aimant permanent
8.
Flushing and connection arrangements for percussion drill tools
The present invention relates to a fluid-operated percussion drill tool comprising an outer wear sleeve comprising a substantially cylindrical wall and having inner and outer surfaces. The tool also comprises a percussion bit having a head portion and a bit retaining portion and located at a forward end of the outer wear sleeve. The tool further comprises a sliding piston mounted for reciprocating movement within the outer wear sleeve to strike the percussion bit. The tool also includes a drive ring having a substantially cylindrical wall and comprising connection means adapted for connecting the drive ring to a drive means of the fluid-operated percussion drill tool. At least one flushing channel provides a fluid path to the cutting face of the bit for a flushing medium. A first portion of the at least one flushing channel extends longitudinally within the wall of the wear sleeve, a second portion of the at least one flushing channel extends longitudinally within the wall of the drive ring and a third portion of the at least one flushing channel extends through the head portion of the percussion bit to the cutting face of the bit.
E21B 1/30 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide par pression d'air, de vapeur ou de gaz
E21B 1/38 - Piston du type marteau, c.-à-d. dans lequel la tête de l'outil ou l'enclume sont frappées par l'organe d'impulsion
The present invention relates to a drill bit assembly for fluid-operated percussion drill tools. The drill bit assembly comprises a percussion bit having a head portion formed with an axially extending shank, a first plurality of axially extending splines on the shank slideably engageable with a first plurality of complementary splines formed internally of a drive chuck whereby rotational drive from the chuck may be transmitted to the shank. The assembly also comprises engagement means on the chuck adapted for connecting the chuck to a drive means of the fluid-operated percussion drill tool. During drilling, the bit and the chuck are held in a first relative orientation in which the bit is retained in the chuck, and the bit is moveable axially relative to the chuck to a bit removal position, in which the bit is rotatable relative to the chuck to a second relative orientation in which the bit is removable from the chuck. The bit is moveable to the bit removal position while the chuck is fully engaged with the drive means.
The present invention relates to a hydraulic down-the-hole hammer. The hammer comprises an elongate shaft and a piston having a central bore therethrough, the piston slidably mounted for reciprocal movement on the shaft and arranged to impact a percussion bit. Forward and rear drive chambers for the piston are disposed between the piston and the shaft and the forward chamber is separated from the rear chamber by an annular shoulder formed internally of the piston bore. The hammer also comprises a control valve to control reciprocation of the piston, wherein the control valve is arranged within the central bore of the piston. The hammer may be a disposable water hammer in which the piston is an outermost component of the hammer.
The present invention relates to a hydraulic down-the-hole hammer. The hammer comprises an elongate shaft and a piston having a central bore therethrough, the piston slidably mounted for reciprocal movement on the shaft and arranged to impact a percussion bit. Forward and rear drive chambers for the piston are disposed between the piston and the shaft and the forward chamber is separated from the rear chamber by an annular shoulder formed internally of the piston bore. The hammer also comprises a control valve to control reciprocation of the piston, wherein the control valve is arranged within the central bore of the piston. The hammer may be a disposable water hammer in which the piston is an outermost component of the hammer. The invention also relates to a method and system for installing a load-bearing element in a seabed, a method and system for installing a subsea anchor on a seabed, a subsea pile and a subsea anchor.
The present invention relates to a drill bit assembly for fluid-operated percussion drill tools comprising a percussion bit having a head portion and a bit retaining portion. Engagement means are provided on the head portion engageable with complementary engagement means on a drive ring whereby rotational drive from the drive ring may be transmitted to the percussion bit. The assembly also comprises bit retaining means adapted for engagement with the bit retaining portion of the percussion bit to retain the percussion bit in the drill bit assembly. Connection means on the drive ring are adapted for connecting the drive ring to a drive means of the fluid-operated percussion drill tool. According to a first aspect, the drive ring comprises a plurality of separable part-annular drive dog segments, wherein the bit retaining means are provided on at least two of the drive dog segments. According to a second aspect the head portion of the bit comprises a main body and a plurality of bit inserts engaged therewith, and wherein the engagement means is provided by the bit inserts.
E21B 10/633 - Trépans caractérisés par des parties, p. ex. des éléments coupants, amovibles ou réglables comportant plusieurs éléments coupants amovibles amovibles indépendamment
The present invention relates to a drilling device. The device comprises at least one drill rod, the or each drill rod having a first cylindrical wall defining an elongate chamber for receiving a working fluid to form a fluid column, the length of the fluid column being equal to a total length of the elongate chambers of the or each drill rod. The device also comprises a displacement excitation device arranged at a proximal end of the fluid column and configured to excite the fluid column to cause the working fluid in the fluid column to oscillate, wherein the excitation device is configured to excite the fluid column at an excitation frequency at or within 10% of a natural frequency of the fluid column determined based on the fluid column having a fixed boundary condition at a proximal end thereof. The device further comprises a tool piston moveably mounted at a distal end of the fluid column and a drilling tool connected to the tool piston such that the oscillation of the working fluid in the fluid column imparts an oscillating force to the drilling tool.
E21B 1/12 - Forage par percussion avec un organe d'impulsion à mouvement alternatif
E21B 1/14 - Forage par percussion avec un organe d'impulsion à mouvement alternatif entraîné par un mécanisme rotatif
E21B 1/24 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide
E21B 1/26 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide par la pression d'un liquide
E21B 1/36 - Piston du type porte-outils, c.-à-d. dans lequel l'outil est relié à l'organe d'impulsion
The present invention relates to a flapper valve for a percussion drill tool. The valve comprises a first side engageable with a planar surface of an element of the percussion drill tool to alternately close first and second fluid flow paths of the percussion drill tool. The planar surface comprises first and second apertures in fluid communication with the first and second fluid flow paths, respectively. The first side of the flapper valve comprises a first planar portion and a second planar portion and a first curved tip portion intermediate the first and second planar portions. The flapper valve is pivotable about the first curved tip portion between a first position, in which the first planar portion of the flapper valve is in sealing contact with the planar surface to close the first aperture, and a second position, in which the second planar portion of the flapper valve is in sealing contact with the planar surface to close the second aperture.
E21B 34/08 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits sensibles à l'écoulement ou à la pression du fluide obtenu
15.
FLUSHING AND CONNECTION ARRANGEMENTS FOR PERCUSSION DRILL TOOLS
The present invention relates to a fluid-operated percussion drill tool (1) comprising an outer wear sleeve (2) comprising a substantially cylindrical wall (3) and having inner (4) and outer (5) surfaces. The tool also comprises a percussion bit (6) having a head portion (7) and a bit retaining portion (8) and located at a forward end (9) of the outer wear sleeve. The tool further comprises a sliding piston (10) mounted for reciprocating movement within the outer wear sleeve to strike the percussion bit. The tool also includes a drive ring (11) having a substantially cylindrical wall (12) and comprising connection means (13) adapted for connecting the drive ring to a drive means of the fluid-operated percussion drill tool. At least one flushing channel (31) provides a fluid path to the cutting face of the bit for a flushing medium. A first portion (32) of the at least one flushing channel extends longitudinally within the wall (3) of the wear sleeve, a second portion (36) of the at least one flushing channel extends longitudinally within the wall (12) of the drive ring and a third portion (40) of the at least one flushing channel extends through the head portion (7) of the percussion bit to the cutting face (43) of the bit.
E21B 1/26 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide par la pression d'un liquide
E21B 1/38 - Piston du type marteau, c.-à-d. dans lequel la tête de l'outil ou l'enclume sont frappées par l'organe d'impulsion
E21B 1/30 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide par pression d'air, de vapeur ou de gaz
16.
A DRILL BIT ASSEMBLY FOR FLUID-OPERATED PERCUSSION DRILL TOOLS
The present invention relates to a drill bit assembly for fluid-operated percussion drill tools. The drill bit assembly comprises a percussion bit having a head portion formed with an axially extending shank, a first plurality of axially extending splines on the shank slideably engageable with a first plurality of complementary splines formed internally of a drive chuck whereby rotational drive from the chuck may be transmitted to the shank. The assembly also comprises engagement means on the chuck adapted for connecting the chuck to a drive means of the fluid-operated percussion drill tool. During drilling, the bit and the chuck are held in a first relative orientation in which the bit is retained in the chuck, and the bit is moveable axially relative to the chuck to a bit removal position, in which the bit is rotatable relative to the chuck to a second relative orientation in which the bit is removable from the chuck. The bit is moveable to the bit removal position while the chuck is fully engaged with the drive means.
A drill bit assembly for fluid-operated percussion drill tools. The assembly comprises a percussion bit comprising a bit head detachably connected to an axially extending shank and engagement means formed on an external wall of the shank engageable with complementary engagement means formed internally of a drive chuck whereby rotational drive from the chuck may be transmitted to the shank. At least one flushing channel extends between the external wall of the bit shank and a cutting face of the bit head, to provide a fluid path for a flushing medium between the external wall of the bit shank and the cutting face of the bit head.
A hydraulic percussion device comprising a piston mounted for reciprocal motion within a cylinder to impact a percussion bit and a control valve to control reciprocation of the piston. A valve pilot line is arranged to switch the control valve based on the position of the piston within the cylinder, wherein the valve pilot line is alternately connected, by the reciprocal movement of the piston, to high and low pressure lines (P, T) via an undercut in the piston. The undercut is located at a portion of the piston having a diameter less than the maximum sealing diameter of the piston.
The present invention relates to a drill bit assembly for fluid-operated percussion drill tools comprising a percussion bit having a head portion and a bit retaining portion. Engagement means are provided on the head portion engageable with complementary engagement means on a drive ring whereby rotational drive from the drive ring may be transmitted to the percussion bit. The assembly also comprises bit retaining means adapted for engagement with the bit retaining portion of the percussion bit to retain the percussion bit in the drill bit assembly. Connection means on the drive ring are adapted for connecting the drive ring to a drive means of the fluid-operated percussion drill tool. According to a first aspect, the drive ring comprises a plurality of separable part- annular drive dog segments, wherein the bit retaining means are provided on at least two of the drive dog segments. According to a second aspect the head portion of the bit comprises a main body and a plurality of bit inserts engaged therewith, and wherein the engagement means is provided by the bit inserts.
E21B 10/627 - Trépans caractérisés par des parties, p. ex. des éléments coupants, amovibles ou réglables comportant plusieurs éléments coupants amovibles
20.
Multi-indenter hammer drill bits and method of fabricating
The present invention relates to a drill bit assembly for fluid-operated percussion drill tools. The drill bit assembly comprises a percussion bit having a head portion formed with an axially extending shank, a first plurality of axially extending splines on the shank slideably engageable with a plurality of complementary splines formed internally of a drive chuck whereby rotational drive from the chuck may be transmitted to the shank and engagement means on the chuck adapted for connecting the chuck to a drive means of the fluid-operated percussion drill tool. The assembly further comprises a retaining sleeve mounted externally on the chuck, wherein the retaining sleeve is moveable between a drilling position, in which the bit and the chuck are retained in a first relative orientation in which the bit is retained in the chuck, and a bit removal position, in which the bit is rotatable relative to the chuck to a second relative orientation in which the bit is removable from the chuck.
The present invention provides a hydraulic percussion device comprising a piston (2) mounted for reciprocal motion within a cylinder (1) to impact a percussion bit (3) and a control valve (4) to control reciprocation of the piston (2). A valve pilot line (7) is arranged to switch the control valve (4) based on the position of the piston (2) within the cylinder (1), wherein the valve pilot line (7) is alternately connected, by the reciprocal movement of the piston (2), to high and low pressure lines (P, T) via an undercut (8) in the piston (2). The undercut (8) is located at a portion of the piston (2) having a diameter less than the maximum sealing diameter of the piston.
The present invention relates to a drill bit assembly for fluid-operated percussion drill tools. The assembly comprises a percussion bit (2) comprising a bit head (3) detachably connected to an axially extending shank (4) and engagement means (5) formed on an external wall of the shank (4) engageable with complementary engagement means formed internally of a drive chuck (405) whereby rotational drive from the chuck may be transmitted to the shank (4). At least one flushing channel (12) extends between the external wall of the bit shank and a cutting face (13) of the bit head (3), to provide a fluid path for a flushing medium between the external wall of the bit shank and the cutting face of the bit head.
A multi-indenter drill bit comprising a plurality of indenters arranged on a drilling surface of a bit face, the ratio of the total indenter area to the bit face area being defined by a parameter KPI 1 (expressed as a percentage); the ratio of the average individual indenter area to the bit face area being defined by a parameter KPI 2, (expressed as a percentage) and wherein the relationship between KPI 1 and KPI 2 is defined by an equation.
According to an aspect of the present invention, there is provided a release assembly (100) disposable axially between two components (A, B) of a percussion drill tool (10), wherein the components (A, B) are connectable together by means of a screw-threaded connection (20). The release assembly (100) comprises a release ring (102), the release ring (102) being tapered on at least a first side (103) in a first radial direction. The release assembly (100) also comprises a first counter element (105) arranged axially adjacent the first side (103) of the release ring (102), the first counter element (105) having a tapered side (106) for engagement with the first side (103) of the release ring (102).
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Machines and machine tools, namely, drilling machines, power-operated percussion hammer drills, pneumatically-operated percussion hammer drills, hydraulically-operated percussion hammer drills, pneumatic hammers, and power hammers as parts of machines; drill chucks, drilling bits and drilling machines, all as parts of machines; oil and gas drilling apparatus in the nature of machine parts, namely, mandrels; mining machines, namely, earth drilling machines; mine borers; mining power or mechanical shovels; pneumatic pumps; oil-well pumping machines; parts and fittings for all the aforementioned goods Drilling of wells and boreholes; rental of drilling machines and equipment; repair of drilling machines and equipment; soil pile driving services; building demolition; building construction; building construction services; building construction supervision; construction of buildings; building construction supervision services for building projects; supervision of building construction; supervision of building work, namely, consultation in building construction supervision; building construction and repair; residential and commercial building construction; construction services, construction consultation, and construction supervision in the field of structures for the production of crude oil and natural gas; construction supervision of buildings; soil foundation work, namely, soil foundation contractor services; building of foundation contractor services; construction of foundations for bridges; construction of foundations for roads; construction of foundations for buildings; construction of foundations for civil engineering structures, namely, roads, streets, and bridges; beneath ground construction work in the nature of foundation laying
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Machines and machine tools, namely, drilling machines, power-operated percussion hammer drills, pneumatically-operated percussion hammer drills, hydraulically-operated percussion hammer drills, pneumatic hammers, and power hammers as parts of machines; drill chucks, drilling bits and drilling machines, all as parts of machines; oil and gas drilling apparatus in the nature of machine parts, namely, mandrels; mining machines, namely, earth drilling machines; mine borers; mining power or mechanical shovels; pneumatic pumps; oil-well pumping machines; parts and fittings for all the aforementioned goods Drilling of wells and boreholes; rental of drilling machines and equipment; repair of drilling machines and equipment; soil pile driving services; building demolition; building construction; building construction services; building construction supervision; construction of buildings; building construction supervision services for building projects; supervision of building construction; supervision of building work, namely, consultation in building construction supervision; building construction and repair; residential and commercial building construction; construction services, construction consultation, and construction supervision in the field of structures for the production of crude oil and natural gas; construction supervision of buildings; soil foundation work, namely, soil foundation contractor services; building of foundation contractor services; construction of foundations for bridges; construction of foundations for roads; construction of foundations for buildings; construction of foundations for civil engineering structures, namely, roads, streets, and bridges; beneath ground construction work in the nature of foundation laying
37 - Services de construction; extraction minière; installation et réparation
Produits et services
(1) Machines and machine tools, namely well drilling machines, drills namely percussion drills, pneumatic hammers, hydraulic hammers, parts of machines namely components for down-the-hole hammers, drill chucks, drilling bits and drilling machines all being parts of machines, oil and gas drilling apparatus, namely drilling rigs and parts for drilling rigs, mining machines, namely, bits for mining machines, drills for mining, mine borers, mining shovels machines, pumps and pumping machines namely oil-well pumping machines, water well drilling machines and geothermal heat pump well drilling machines, and parts and fittings for the foregoing (1) Drilling of wells and boreholes, rental of drilling machines and equipment, namely oil well drilling, water well drilling and geothermal heat pump well drilling, repair of drilling machines and drilling equipment for others, soil piling, building demolition, building construction, building construction services, building construction supervision, construction of buildings, building construction supervision services for building projects, supervision of building construction, supervision of building work, building construction and repair, residential and commercial building construction, construction services namely, for construction of piling at excavation or drilling operations, construction consultation and construction supervision, namely, construction of new piling systems and drilling sites, construction supervision of buildings in the field of structures for production of crude oil and natural gas; soil foundation work namely soil foundation contractor services, building of foundations contractor services, construction of foundations for bridges, construction of foundations for roads, construction of foundations for buildings, construction of foundations for civil engineering structures, beneath ground construction work relating to foundation laying
(2) Drilling of wells and boreholes, rental of drilling machines and equipment, namely oil well drilling, water well drilling and geothermal heat pump well drilling, repair of drilling machines and equipment
37 - Services de construction; extraction minière; installation et réparation
Produits et services
(1) Machines and machine tools, namely well drilling machines, drills namely percussion drills, pneumatic hammers, hydraulic hammers, parts of machines namely components for down-the-hole hammers, drill chucks, drilling bits and drilling machines all being parts of machines, oil and gas drilling apparatus, namely drilling rigs and parts for drilling rigs, mining machines, namely, bits for mining machines, drills for mining, mine borers, mining shovels machines, pumps and pumping machines namely oil-well pumping machines, water well drilling machines and geothermal heat pump well drilling machines, and parts and fittings for the foregoing (1) Well and borehole drilling services, rental of drilling machines and equipment, namely oil well drilling, water well drilling and geothermal heat pump well drilling, drilling machines and drilling equipment repair services, soil piling, building demolition, building construction, building construction services, building construction supervision, construction of buildings, building construction supervision services for building projects, supervision of building construction, supervision of building work, building construction and repair, residential and commercial building construction, construction services namely, for construction of piling at excavation and drilling operation sites, construction consultation and construction supervision, namely, construction of new piling systems and drilling sites, construction supervision of buildings in the field of structures for production of crude oil and natural gas; soil foundation work namely soil foundation contractor services, building of foundations contractor services, construction of foundations for bridges, construction of foundations for roads, construction of foundations for buildings, construction of foundations for civil engineering structures, beneath ground construction work relating to foundation laying
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Machines and machine tools, namely drilling machines, drills including percussion drills, pneumatic hammers, hammers (parts of machines); drill chucks, drilling bits and drilling machines (all being parts of machines); oil and gas drilling apparatus; mining machines, mine borers, mining shovels (machines); pumps and pumping machines; and parts and fittings for the foregoing. Drilling of wells and boreholes; rental of drilling machines and equipment; and repair of drilling machines and equipment, soil piling; building, building construction, building construction services, building construction supervision, construction of buildings, building construction supervision services for building projects, supervision of building construction, supervision of building work, building construction and repair, residential and commercial building construction, construction, construction services, construction consultation, construction supervision, construction supervision of buildings; soil foundation work, building of foundations, construction of foundations for bridges, construction of foundations for roads, construction of foundations for buildings, construction of foundations for civil engineering structures, beneath ground construction work relating to foundation laying.
31.
Multi-accumulator arrangement for hydraulic percussion mechanism
a) for hydraulic fluid. The first accumulator assembly comprises a plurality of first accumulator elements (27). In a first aspect, the plurality of first accumulator elements are arranged in a common housing (14). In a second aspect, each of the first accumulator elements is arranged at the same proximity to the piston. In a third aspect, each of the first accumulator elements comprises an accumulator membrane (32) or piston, and wherein the primary direction of movement of the membrane or piston in contact with the hydraulic fluid is substantially parallel to a longitudinal axis of the mechanism.
The present invention relates to a drill rod (2) for a fluid-operated apparatus, particularly a percussion drill tool (1). The drill rod (2) comprises a first connection interface (100) at a first end (101) and a second connection interface (102) at a second end (103). The first connection interface (100) is for connection of the drill rod (2) to a second connection interface (102) of a like drill rod (3) or to the apparatus (1). The second connection interface (102) is for connection of the drill rod (2) to a first connection interface of a like drill rod (3) or to a fluid transfer device. The drill rod also comprises a plurality of discrete fluid flow channels (4, 6, 8) through the drill rod, a first member (23) moveably mounted in the first connection interface (100) and a second member (22) moveably mounted in the second connection interface. The first moveable member is the innermost component in the first connection interface and the second moveable member is the innermost component in the second connection interface. When the drill rod (2) is connected to a like drill rod (3) or to the apparatus (1) or to the fluid transfer device, at least two of the fluid flow channels (4, 6) are placed in fluid communication with corresponding channels (4, 6) of the like drill rod or the apparatus or the fluid transfer device by movement of the first (23) and second (22) moveable members only.
E21B 21/12 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p. ex. en utilisant l'air d'échappement du moteur utilisant des tubes de forage comprenant plusieurs passages pour les fluides, p. ex. systèmes en circuit fermé
E21B 17/042 - AccouplementsJoints entre tige et trépan, ou entre tiges filetés
E21B 21/10 - Aménagements des vannes dans les systèmes de circulation des fluides de forage
E21B 17/18 - Tubes comprenant plusieurs passages pour les fluides
The present invention relates to a pressure control system for a hydraulic apparatus. The pressure control system comprises a fluid supply line configured to carry pressurised fluid to the apparatus (7) and a fluid return line configured to carry exhaust fluid from the apparatus (7). The pressure control system further comprises pressure control means (9) configured to pump or drive the exhaust fluid in the fluid return line when a bAackpressure at an outlet (12) of the apparatus exceeds a threshold. The pressure control means may be operated or energised by the pressurised fluid in the fluid supply line.
A flow monitoring system for a hydraulic apparatus (3) comprising means (10) for restricting the flow of hydraulic fluid to the apparatus (3) if a difference between an outward (5) flow rate of hydraulic fluid and a return (8) flow rate of the hydraulic fluid exceeds a threshold.
The present invention relates to a filter drill rod for a hydraulic down-the-hole hammer. The drill rod comprises a first fluid flow channel through the drill rod; and a second fluid flow channel through the drill rod. The drill rod also comprises at least one filter disposed in the first fluid flow channel. The drill rod is configured to permit pressure fluid to flow in the first fluid flow channel and return fluid to flow in the second fluid flow channel, or pressure fluid to flow in the second fluid flow channel and return fluid to flow in the first fluid flow channel. The filter drill rod may further comprise means for selectively placing the first and second fluid flow channels in fluid communication with one another at a point downstream of the filter. The invention also relates to a filter cleaning valve component for connection in a drill string of a hydraulic down-the-hole hammer downstream of a filter drill rod. The valve component comprises a first fluid flow channel through the valve component and a second fluid flow channel through the valve component. The valve component further comprises means for selectively placing the first and second fluid flow channels in fluid communication with one another.
The present invention relates to a drill rod (2) for a fluid-operated apparatus, particularly a percussion drill tool (1). The drill rod (2) comprises a first connection interface (100) at a first end (101) and a second connection interface (102) at a second end (103). The first connection interface (100) is for connection of the drill rod (2) to a second connection interface (102) of a like drill rod (3) or to the apparatus (1). The second connection interface (102) is for connection of the drill rod (2) to a first connection interface of a like drill rod (3) or to a fluid transfer device. The drill rod also comprises a plurality of discrete fluid flow channels (4, 6, 8) through the drill rod, a first member (23) moveably mounted in the first connection interface (100) and a second member (22) moveably mounted in the second connection interface. The first moveable member is the innermost component in the first connection interface and the second moveable member is the innermost component in the second connection interface. When the drill rod (2) is connected to a like drill rod (3) or to the apparatus (1) or to the fluid transfer device, at least two of the fluid flow channels (4, 6) are placed in fluid communication with corresponding channels (4, 6) of the like drill rod or the apparatus or the fluid transfer device by movement of the first (23) and second (22) moveable members only.
E21B 21/12 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p. ex. en utilisant l'air d'échappement du moteur utilisant des tubes de forage comprenant plusieurs passages pour les fluides, p. ex. systèmes en circuit fermé
The present invention relates to a liquid-powered down-the-hole hammer comprising an external cylindrical outer wear sleeve (5), an inner cylinder (25) mounted within the outer wear sleeve, and a sliding piston (8) mounted for reciprocating movement within the inner cylinder to strike a percussion bit (1) of a drill bit assembly located at the forward end of the outer wear sleeve. The hammer further comprises a flushing fluid passage (22), configured to allow flushing fluid to pass through the hammer and the percussion bit to evacuate drill cuttings from a hole being drilled. Restriction means (20) is provided in the flushing fluid passage, wherein the restriction means is operable to restrict a flow of flushing fluid upwards through the hammer. The invention also relates to a liquid-powered down-the-hole hammer having a flushing fluid passage, configured to allow flushing fluid to pass through the hammer and the percussion bit to evacuate drill cuttings from a hole being drilled, wherein at least a portion of the flushing fluid passage is provided outside the piston. The flushing fluid passage may be isolated from the piston.
The present invention relates to a hydraulically powered percussion mechanism (12), comprising a piston (6) to impact a percussion bit (8). The percussion mechanism also includes a first accumulator assembly (3a) for hydraulic fluid. The first accumulator assembly comprises a plurality of first accumulator elements (27). In a first aspect, the plurality of first accumulator elements are arranged in a common housing (14). In a second aspect, each of the first accumulator elements is arranged at the same proximity to the piston. In a third aspect, each of the first accumulator elements comprises an accumulator membrane (32) or piston, and wherein the primary direction of movement of the membrane or piston in contact with the hydraulic fluid is substantially parallel to a longitudinal axis of the mechanism.
The present invention relates to a percussion drill bit (1) for directional drilling tools (10). The drill bit comprises a head portion (2) formed with an axially extending shank (3). The drill bit also comprises engagement means (4) on the shank engageable with complementary engagement means formed on a drive chuck whereby rotational drive from the chuck may be transmitted to the shank. The head portion (2) of the drill bit is formed with a plurality of slant faces (5) arranged symmetrically about the head portion.
The present invention relates to a down-the-hole hammer comprising an external cylindrical outer wear sleeve (5), a sliding piston (8) mounted for reciprocating movement within the outer wear sleeve to strike a percussion bit (1) of a drill bit assembly located at the forward end of the outer wear sleeve. The drill bit assembly comprises a percussion bit having a head portion formed with an axially extending stub shank (32); axially extending splines (36) on the stub shank slideably engageable with complementary splines (35) formed on a drive chuck (4) whereby rotational drive from the chuck may be transmitted to the stub shank; a bit retaining ring (141) adapted for engagement with a retaining shoulder (37) on the stub shank to retain the stub shank in the drill bit assembly; and engagement means on the chuck adapted for connecting the chuck to a drive means of the fluid-operated percussion drill tool; the bit retaining ring comprises a shoulder (144) for engagement with an upper end of the chuck to hold the retaining ring in place in the assembly. The assembly further comprises a bushing (61) arranged above the chuck. An upper portion of the bushing has an internal diameter (B) dimensioned to provide a sealing fit with the piston nose (20). The bit retaining ring or the lower portion of the bushing has an internal diameter (E) dimensioned to provide a close sliding fit with the outer diameter of the retaining shoulder (37) on the stub shank (32).
The present invention provides an attachment (1) for a fluid-operated percussion drill tool (2), the drill tool having a backhead assembly (4) for attachment to a drill rod (10). The attachment comprises a shaft (3) attachable to the backhead assembly, wherein the shaft comprises a central bore (16) in fluid communication with a pressure bore of the drill rod. The attachment further comprises a sleeve (5) co-axially slidably mounted on the shaft, the sleeve comprising an outer shoulder (7) at a rear end thereof, and at least one rearwardly-directed exhaust passage. Pressurised air is supplied from the central bore of the shaft to urge the sleeve rearwards into a closed position in which air is prevented from exhausting through the exhaust passage. When a restriction is encountered at the shoulder, the sleeve moves forward to an open position in which air is permitted to exhaust through the exhaust passage adjacent the restriction.
The present invention relates to a drill bit assembly for fluid-operated percussion drill tools comprising a percussion bit (1) having a head portion (3) formed with an axially extending stub shank (32); axially extending splines (36) on the stub shank (32) slideably engageable with complementary splines (35) formed on a drive chuck (4) whereby rotational drive from the chuck (4) may be transmitted to the stub shank (32); bit retaining means adapted for engagement with complementary retaining means on the stub shank to retain the stub shank in the drill bit assembly; and engagement means on the chuck (4) adapted for connecting the chuck (4) to a drive means (5) of the fluid-operated percussion drill tool. The bit retaining means comprises a bit retaining ring (41), and the complementary retaining means comprises a retaining shoulder (37) on the stub shank, wherein the bit retaining ring is arranged to engage the retaining shoulder to retain the stub shank in the drill bit assembly. A portion (42) of the bit retaining ring (41) adapted to engage the retaining shoulder (37) to retain the stub shank (32) in the drill bit assembly is disposed within the chuck (4).
37 - Services de construction; extraction minière; installation et réparation
Produits et services
Machines and machine tools, including drilling machines, drills including percussion drills, pneumatic hammers, hammers (parts of machines); drill chucks, drilling bits and drilling machines (all being parts of machines); oil and gas drilling apparatus; mining machines, mine borers, mining shovels (machines); pumps and pumping machines; and parts and fittings for the foregoing. Hand tools for use in mining; drills (hand tools); hammers (hand tools). Drilling of wells and boreholes; rental of drilling machines and equipment; and repair of drilling machines and equipment.
The present invention relates to a drill bit assembly for fluid-operated percussion drill tools. The assembly comprises a percussion bit (2) comprising a bit head (3) detachably connected to an axially extending shank (4) and engagement means (5) formed on an external wall of the shank (4) engageable with complementary engagement means formed internally of a drive chuck (405) whereby rotational drive from the chuck may be transmitted to the shank (4). At least one flushing channel (12) extends between the external wall of the bit shank and a cutting face (13) of the bit head (3), to provide a fluid path for a flushing medium between the external wall of the bit shank and the cutting face of the bit head.
The present invention provides a hydraulic percussion device comprising a piston (2) mounted for reciprocal motion within a cylinder (1) to impact a percussion bit (3) and a control valve (4) to control reciprocation of the piston (2). A valve pilot line (7) is arranged to switch the control valve (4) based on the position of the piston (2) within the cylinder (1), wherein the valve pilot line (7) is alternately connected, by the reciprocal movement of the piston (2), to high and low pressure lines (P, T) via an undercut (8) in the piston (2). The undercut (8) is located at a portion of the piston (2) having a diameter less than the maximum sealing diameter of the piston.
The present invention relates to a drill bit assembly for fluid-operated percussion drill tools. The drill bit assembly comprises a percussion bit having a head portion formed with an axially extending shank, a first plurality of axially extending splines on the shank slideably engageable with a first plurality of complementary splines formed internally of a drive chuck whereby rotational drive from the chuck may be transmitted to the shank. The assembly also comprises engagement means on the chuck adapted for connecting the chuck to a drive means of the fluid-operated percussion drill tool. During drilling, the bit and the chuck are held in a first relative orientation in which the bit is retained in the chuck, and the bit is moveable axially relative to the chuck to a bit removal position, in which the bit is rotatable relative to the chuck to a second relative orientation in which the bit is removable from the chuck. The bit is moveable to the bit removal position while the chuck is fully engaged with the drive means.
E21B 1/38 - Piston du type marteau, c.-à-d. dans lequel la tête de l'outil ou l'enclume sont frappées par l'organe d'impulsion
E21B 4/06 - Moyens de percussion mis en œuvre au fond du trou, p. ex. marteaux
E21B 4/10 - Moyens de percussion mis en œuvre au fond du trou, p. ex. marteaux le mouvement de rotation continu dans une seule direction de l'arbre ou des tiges de forage produisant des chocs consécutifs
E21B 4/16 - Moyens d'entraînement multiples au fond du trou, p. ex. pour le forage combiné par percussion et par rotationMoyens d'entraînement pour unités de forage à plusieurs trépans
The present invention relates to a fluid-operated percussion drill tool (1) comprising an outer wear sleeve (2) comprising a substantially cylindrical wall (3) and having inner (4) and outer (5) surfaces. The tool also comprises a percussion bit (6) having a head portion (7) and a bit retaining portion (8) and located at a forward end (9) of the outer wear sleeve. The tool further comprises a sliding piston (10) mounted for reciprocating movement within the outer wear sleeve to strike the percussion bit. The tool also includes a drive ring (11) having a substantially cylindrical wall (12) and comprising connection means (13) adapted for connecting the drive ring to a drive means of the fluid-operated percussion drill tool. At least one flushing channel (31) provides a fluid path to the cutting face of the bit for a flushing medium. A first portion (32) of the at least one flushing channel extends longitudinally within the wall (3) of the wear sleeve, a second portion (36) of the at least one flushing channel extends longitudinally within the wall (12) of the drive ring and a third portion (40) of the at least one flushing channel extends through the head portion (7) of the percussion bit to the cutting face (43) of the bit.
E21B 1/26 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide par la pression d'un liquide
E21B 1/30 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide par pression d'air, de vapeur ou de gaz
E21B 1/38 - Piston du type marteau, c.-à-d. dans lequel la tête de l'outil ou l'enclume sont frappées par l'organe d'impulsion
The present invention relates to a flapper valve for a percussion drill tool. The valve comprises a first side engageable with a planar surface of an element of the percussion drill tool to alternately close first and second fluid flow paths of the percussion drill tool. The planar surface comprises first and second apertures in fluid communication with the first and second fluid flow paths, respectively. The first side of the flapper valve comprises a first planar portion and a second planar portion and a first curved tip portion intermediate the first and second planar portions. The flapper valve is pivotable about the first curved tip portion between a first position, in which the first planar portion of the flapper valve is in sealing contact with the planar surface to close the first aperture, and a second position, in which the second planar portion of the flapper valve is in sealing contact with the planar surface to close the second aperture.
E21B 34/08 - Aménagements des vannes pour les trous de forage ou pour les puits dans les puits sensibles à l'écoulement ou à la pression du fluide obtenu
52.
MULTI-ACCUMULATOR ARRANGEMENT FOR HYDRAULIC PERCUSSION MECHANISM
The present invention relates to a hydraulically powered percussion mechanism, comprising a piston to impact a percussion bit. The percussion mechanism also includes a first accumulator assembly for hydraulic fluid. The first accumulator assembly comprises a plurality of first accumulator elements. In a first aspect, the plurality of first accumulator elements are arranged in a common housing. In a second aspect, each of the first accumulator elements is arranged at the same proximity to the piston. In a third aspect, each of the first accumulator elements comprises an accumulator membrane or piston, and wherein the primary direction of movement of the membrane or piston in contact with the hydraulic fluid is substantially parallel to a longitudinal axis of the mechanism.
The present invention relates to a drill rod (2) for a fluid-operated apparatus, particularly a percussion drill tool (1). The drill rod (2) comprises a first connection interface (100) at a first end (101) and a second connection interface (102) at a second end (103). The first connection interface (100) is for connection of the drill rod (2) to a second connection interface (102) of a like drill rod (3) or to the apparatus (1). The second connection interface (102) is for connection of the drill rod (2) to a first connection interface of a like drill rod (3) or to a fluid transfer device. The drill rod also comprises a plurality of discrete fluid flow channels (4, 6, 8) through the drill rod, a first member (23) moveably mounted in the first connection interface (100) and a second member (22) moveably mounted in the second connection interface. The first moveable member is the innermost component in the first connection interface and the second moveable member is the innermost component in the second connection interface. When the drill rod (2) is connected to a like drill rod (3) or to the apparatus (1) or to the fluid transfer device, at least two of the fluid flow channels (4, 6) are placed in fluid communication with corresponding channels (4, 6) of the like drill rod or the apparatus or the fluid transfer device by movement of the first (23) and second (22) moveable members only.
E21B 17/042 - AccouplementsJoints entre tige et trépan, ou entre tiges filetés
E21B 17/18 - Tubes comprenant plusieurs passages pour les fluides
E21B 21/10 - Aménagements des vannes dans les systèmes de circulation des fluides de forage
E21B 21/12 - Procédés ou appareils pour nettoyer les trous de forage par jet de fluide, p. ex. en utilisant l'air d'échappement du moteur utilisant des tubes de forage comprenant plusieurs passages pour les fluides, p. ex. systèmes en circuit fermé
The present invention relates to a drilling device. The device comprises at least one drill rod, the or each drill rod having a first cylindrical wall defining an elongate chamber for receiving a working fluid to form a fluid column, the length of the fluid column being equal to a total length of the elongate chambers of the or each drill rod. The device also comprises a displacement excitation device arranged at a proximal end of the fluid column and configured to excite the fluid column to cause the working fluid in the fluid column to oscillate, wherein the excitation device is configured to excite the fluid column at an excitation frequency at or within 10% of a natural frequency of the fluid column determined based on the fluid column having a fixed boundary condition at a proximal end thereof. The device further comprises a tool piston moveably mounted at a distal end of the fluid column and a drilling tool connected to the tool piston such that the oscillation of the working fluid in the fluid column imparts an oscillating force to the drilling tool.
E21B 1/12 - Forage par percussion avec un organe d'impulsion à mouvement alternatif
E21B 1/14 - Forage par percussion avec un organe d'impulsion à mouvement alternatif entraîné par un mécanisme rotatif
E21B 1/24 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide
E21B 1/26 - Forage par percussion avec un organe d'impulsion à mouvement alternatif l'organe d'impulsion étant un piston entraîné directement par la pression d'un fluide par la pression d'un liquide
E21B 1/36 - Piston du type porte-outils, c.-à-d. dans lequel l'outil est relié à l'organe d'impulsion
