An orientation adjustment assembly (300) for a directional drill (10) and the method for the same, wherein the activation and deactivation of the orientation adjustment assembly affects the relative rotation between the stationary and rotary parts of the direction drill (10) is dependent on drilling fluid pressure in the directional drill (10).
Method and system (100) for determining depth of an object (320) deployed into a hole or hollow member or structure (330) by a deployment means (340) based on the use of at least one rotating distance measurement assembly (110) arranged in engagement with a deployment means (340), enabling calculation of the depth of the deployed object (320).
A survey tool system (100) for surveying deviation of a previously drilled hole (10, 20) from a selected hole path (30) comprises: an assembly of drill pipe sections (55) co-operable with said previously drilled hole (10, 20); and at least one sensor (125) included within the assembly of drill pipe sections (55) for collecting survey data including data correlated with deviation of said previously drilled hole (10, 20) from said selected hole path (30). A processor (130) processes data collected from the at least one sensor (125) and determines deviation of the previously drilled hole (10, 20) from the selected path (30) for said previously drilled hole (10, 20).
Orientation system for downhole device (10), wherein the orientation system comprises an outer magnetic orientation lock assembly (460) arranged in connection with or integrated in the downhole device (10) and an orientation instrument assembly (400) for insertion into the outer magnetic orientation lock assembly (460), and wherein the orientation instrument assembly (400) comprises a sensor assembly (420) rotatably arranged in the orientation instrument assembly (400) and arranged for aligning or orienting in relation to the outer magnetic orientation lock assembly (460).
A survey tool system (100) for surveying deviation of a previously drilled hole (10, 20) from a selected hole path (30) comprises: an assembly of drill pipe sections (55) co-operable with said previously drilled hole (10, 20); and at least one sensor (125) included within the assembly of drill pipe sections (55) for collecting survey data including data correlated with deviation of said previously drilled hole (10, 20) from said selected hole path (30). A processor (130) processes data collected from the at least one sensor (125) and determines deviation of the previously drilled hole (10, 20) from the selected path (30) for said previously drilled hole (10, 20).
Orientation system for downhole device (10), wherein the orientation system comprises an outer magnetic orientation lock assembly (460) arranged in connection with or integrated in the downhole device (10) and an orientation instrument assembly (400) for insertion into the outer magnetic orientation lock assembly (460), and wherein the orientation instrument assembly (400) comprises a sensor assembly (420) rotatably arranged in the orientation instrument assembly (400) and arranged for aligning or orienting in relation to the outer magnetic orientation lock assembly (460).
Pressure proof running gear (100) wireless antenna assembly (10), interior of which pressure proof running gear (100) is arranged or integrated a survey instrument (200) provided with a wireless instrument antenna (201), which wireless antenna assembly (10) is an integrated part of the pressure proof running gear (100) and electrically insulated from the pressure proof running gear (100), and physically and galvanically separated from the wireless instrument antenna (201), wherein the wireless antenna assembly (10) functions as a wireless signal extender of the instrument antenna (201) transferring an electromagnetic communication signal from the interior survey instrument (200) to exterior of the pressure proof running gear (100) enabling direct communication between the survey instrument (200) and an external unit.
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
8.
NON-MAGNETIC SURVEY INSTRUMENT FOR BOREHOLES, CASINGS OR DRILL STRINGS
Non-magnetic survey instrument (100) for borehole, casing or drill string formed by a body (110) accommodating centralizer assemblies (120-122) and measuring systems (170-190), the non-magnetic survey instrument (100) being arranged for continuous surveying as the non-magnetic survey instrument (100) travels downwards or upwards in a borehole, casing or drill string.
Drilling tool with downhole electric power generator assembly (500), wherein the drilling tool comprising a bottom hole assembly (11) with a foremost full-face drill bit (20) driven by an internal drive shaft (150) transferring feed and rotation forces from a drill string of a drill rig onto the full-face drill bit (20), and further comprising a rotation preventing assembly (100) including at least one pressure pad or packer element (102) for engagement with a borehole wall by activation by pressure from supply of drilling fluid, and a downhole power generator assembly (510), wherein the downhole electric power generator assembly (510) is formed by an outer tube (511) housing at least one stator generator segment (512) and at least one rotor generator segment (513), wherein the at least one stator generator segment (512) is arranged to the outer tube (511) and wherein a part or segment of the inner drive shaft (150) is arranged for accommodating the at least one rotor generator segment (513), wherein the stator generator segment (512) is arranged for accommodating the inner drive shaft (150) with the at least one accommodated rotor generator segment (513).
Thrust bearing assembly (40) for a wireline-operated directional core barrel drill, especially for rock drilling of curved holes with a predetermined path, where all sliding or rolling surfaces of the thrust bearing assembly (40) are made of tungsten (wolfram carbide), titanium carbide, ceramic or Polycrystalline Diamond (PCD), and wherein the thrust bearing assembly (40) has an inner diameter large enough to allow the drive shaft (35) to pass through.
E21B 25/00 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
F16C 17/04 - Sliding-contact bearings for exclusively rotary movement for axial load only
F16C 19/10 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for axial load mainly
12.
ADJUSTABLE ECCENTRIC BUSHING ASSEMBLY FOR WIRELINE-OPERATED DIRECTIONAL CORE BARREL DRILL
Eccentric bushing assembly (40) for a wireline-operated directional core barrel drill, especially for rock drilling of curved holes with a predetermined path. The eccentric bushing assembly (40) is an adjustable eccentric bushing assembly (40) which includes a bushing (41) and two eccentric sleeves in the form of an outer sleeve (42) and an inner sleeve (43) engaging each other so that eccentricity can be changed seamlessly without the need of replacing components of the directional core drill to change the oblique position of the drill bit (12).
Core barrel head (20) for connection to a core barrel for collecting core samples, and for connection to a latch assembly (14), to mount a drill assembly in a bore hole, with a sleeve (27) for carrying the inner tube. A controllable locking device (38, 39) is arranged inside the core barrel head (20) for locking the sleeve (27) in a fixed rotational position relatively to the attached latch assembly (14), to allow measurement of the inclination and the orientation of the core. The invention also includes a survey instrument assembly (12) provided with a connection link (70) for connection to a spearhead (11), drill pipe, latch assembly (14), core barrel head (20) or other drilling or geotechnical equipment.
E21B 25/16 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors for obtaining oriented cores
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
Thrust bearing assembly (40) for a wireline-operated directional core barrel drill, especially for rock drilling of curved holes with a predetermined path, where all sliding or rolling surfaces of the thrust bearing assembly (40) are made of tungsten (wolfram carbide), titanium carbide, ceramic or Polycrystalline Diamond (PCD), and wherein the thrust bearing assembly (40) has an inner diameter large enough to allow the drive shaft (35) to pass through.
Low resistance core sample marking system and method for orienting a core sample retrieved by a wireline-operated drill, where core orientation is achieved by the use of a reference marking device (110) and a data logger for recording geospatial/environmental data in an instrumentation unit (200), where the geospatial/environmental data registered by the data logger is related to the reference scribe mark on the core by the reference marking device (110).
E21B 25/16 - Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors for obtaining oriented cores
E21B 49/02 - Testing the nature of borehole wallsFormation testingMethods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil
Orientation system for downhole device (10), wherein the orientation system comprises an outer magnetic orientation lock assembly (460) arranged in connection with or integrated in the downhole device (10) and an orientation instrument assembly (400) for insertion into the outer magnetic orientation lock assembly (460), and wherein the orientation instrument assembly (400) comprises a sensor assembly (420) rotatably arranged in the orientation instrument assembly (400) and arranged for aligning or orienting in relation to the outer magnetic orientation lock assembly (460).
Drilling tool with downhole electric power generator assembly (500), wherein the drilling tool comprising a bottom hole assembly (11) with a foremost full-face drill bit (20) driven by an internal drive shaft (150) transferring feed and rotation forces from a drill string of a drill rig onto the full-face drill bit (20), and further comprising a rotation preventing assembly (100) including at least one pressure pad or packer element (102) for engagement with a borehole wall by activation by pressure from supply of drilling fluid, and a downhole power generator assembly (510), wherein the downhole electric power generator assembly (510) is formed by an outer tube (511) housing at least one stator generator segment (512) and at least one rotor generator segment (513), wherein the at least one stator generator segment (512) is arranged to the outer tube (511) and wherein a part or segment of the inner drive shaft (150) is arranged for accommodating the at least one rotor generator segment (513), wherein the stator generator segment (512) is arranged for accommodating the inner drive shaft (150) with the at least one accommodated rotor generator segment (513).
Non-magnetic survey instrument (100) for borehole, casing or drill string formed by a body (110) accommodating centralizer assemblies (120-122) and measuring systems (170-190), the non-magnetic survey instrument (100) being arranged for continuous surveying as the non-magnetic survey instrument (100) travels downwards or upwards in a borehole, casing or drill string.
Pressure proof running gear (100) wireless antenna assembly (10), interior of which pressure proof running gear (100) is arranged or integrated a survey instrument (200) provided with a wireless instrument antenna (201), which wireless antenna assembly (10) is an integrated part of the pressure proof running gear (100) and electrically insulated from the pressure proof running gear (100), and physically and galvanically separated from the wireless instrument antenna (201), wherein the wireless antenna assembly (10) functions as a wireless signal extender of the instrument antenna (201) transferring an electromagnetic communication signal from the interior survey instrument (200) to exterior of the pressure proof running gear (100) enabling direct communication between the survey instrument (200) and an external unit.
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
E21B 47/12 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
A survey tool system (100) for surveying deviation of a previously drilled hole (10, 20) from a selected hole path (30) comprises: an assembly of drill pipe sections (55) co-operable with said previously drilled hole (10, 20); and at least one sensor (125) included within the assembly of drill pipe sections (55) for collecting survey data including data correlated with deviation of said previously drilled hole (10, 20) from said selected hole path (30). A processor (130) processes data collected from the at least one sensor (125) and determines deviation of the previously drilled hole (10, 20) from the selected path (30) for said previously drilled hole (10, 20).
Eccentric bushing assembly (40) for a wireline-operated directional core barrel drill, especially for rock drilling of curved holes with a predetermined path. The eccentric bushing assembly (40) is an adjustable eccentric bushing assembly (40) which includes a bushing (41) and two eccentric sleeves in the form of an outer sleeve (42) and an inner sleeve (43) engaging each other so that eccentricity can be changed seamlessly without the need of replacing components of the directional core drill to change the oblique position of the drill bit (12).
