Abstract

A sulfur-resistant and corrosion-resistant low-carbon alloy coiled tubing and a preparation method therefor. The sulfur-resistant and corrosion-resistant low-carbon alloy coiled tubing has a metallographic structure of ferrite and pearlite, and is prepared by means of the butt joint of steel strip plates, coiling molding, tube blank welding, extrusion molding, a welding seam heat treatment and cooling. In the preparation method, welding seam grains of the steel strips are refined by means of a plasma welding method, such that the structure is uniform, and the strength is stable; and the heat treatment process refines the welding seam grains, makes the structure more uniform, and improves the strength and corrosion resistance of a coiled tubing.

IPC Classes  ?

• C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
• C22C 38/00 - Ferrous alloys, e.g. steel alloys
• C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
• B23K 26/262 - Seam welding of rectilinear seams of longitudinal seams of tubes
• C21D 9/50 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for welded joints

Abstract

A method for stripping an encapsulation layer of a steel pipe is provided, which relates to the technical field of encapsulation layer stripping. The method mainly includes the following steps 1 to 6: step 1, a left part of the encapsulation layer is pre-stripped; step 2, a right part of the encapsulation layer is pre-stripped; step 3, an upper part of the encapsulation layer is pre-stripped; step 4, the upper part of the encapsulation layer is secondarily stripped; step 5, the lower part of the encapsulation layer is stripped, and the right and left parts of the encapsulation layer are secondarily stripped; and step 6, the encapsulation layer is completely stripped and the central pipe body of the steel pipe is completely exposed.

IPC Classes  ?

• B26D 3/28 - Splitting layers from workMutually separating layers by cutting

Abstract

Equipment for stripping package includes a supporting frame, a driving air motor, a pressing assembly and a feeding carrier plate, wherein the pressing assembly is mounted in an interior of the supporting frame, an output end of the driving air motor is in transmission connection with the pressing assembly, and a feeding end of the supporting frame is connected with the feeding carrier plate. The pressing assembly includes a first transmission shaft and a second transmission shaft, the first transmission shaft is sleeved with a lower peeling roller, pressing tooth on the lower peeling roller and pressing tooth on the second transmission shaft are arranged in a staggered mode, and tearing operation of external packaging layers of cables is achieved by up-and-down pressing.

IPC Classes  ?

• H01R 43/28 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups

Abstract

The present invention relates to the technical field of the stripping of encapsulation layers. Disclosed is a steel pipe encapsulation layer stripping method. The method mainly comprises six steps: step I, pre-stripping of a left encapsulation layer; step II, pre-stripping of a right encapsulation layer; step III, pre-stripping of an upper encapsulation layer; step IV, secondary stripping the upper encapsulation layer; step V, secondary stripping of a bottom encapsulation layer and two side encapsulation layers; and step VI, complete stripping of the encapsulation layers and the exposure of a pipe body. In the present invention, the steps are arranged rationally, and can be operated conveniently and efficiently, and be mastered easily. Stripping pliers are used to obtain an inner central pipe body, and the integral stripping of a relatively long encapsulation can be completed without changing the appearance of an encapsulation layer. In this way, the use performance of an encapsulated pipeline is effectively ensured, and the inner central pipe body is protected from damage during stripping.

IPC Classes  ?

• H02G 1/12 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof

Abstract

Disclosed in the present invention is a packaging stripping apparatus, comprising a supporting frame, a driving air motor, an extrusion assembly and a feeding supporting plate. The extrusion assembly is installed in the supporting frame, the output end of the driving air motor is in transmission connection with the extrusion assembly, and the feeding end of the supporting frame is connected to the feeding supporting plate. The extrusion assembly comprises a first transmission shaft and a second transmission shaft, a lower stripping roller sleeves the first transmission shaft, extrusion teeth on the lower stripping roller and extrusion teeth on the second transmission shaft are arranged in a staggered mode, and tearing operation on an external packaging layer of a cable is completed by means of up-down extrusion. The present invention is compact in layout, small in size, and convenient and fast to carry. The air motor is used for driving, which is more convenient to use, time and labor are saved, the working efficiency is high, and the labor intensity of workers is reduced.

IPC Classes  ?

• H01R 43/28 - Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for wire processing before connecting to contact members, not provided for in groups

Abstract

An encapsulated tubular cable with a colorized identification strap includes armored protection ducts and an encapsulation protection layer. A hollow passage is formed in the center of the duct body after each armored protection duct is formed. A wire cable, an optical fiber, or an oil duct is placed in the hollow passage. The encapsulation protection layer wraps the armored protection ducts. A plurality of armored protection ducts are arranged in one encapsulated protection layer. A peripheral edge of each armored protection duct is correspondingly provided with at least one colorized identification strap group. The encapsulation protection layer improves the corrosion resistance of the encapsulated duct cable; the colorized identification straps are provided at the thinnest positions of the encapsulation protection layer to facilitate tearing and encapsulation; and each colorized identification strap has a respective color identifier, which is convenient for distinguishing objects in each hollow passage during use.

IPC Classes  ?

• F16L 3/26 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting the pipes all along their length, e.g. pipe channels or ducts
• F16L 3/22 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets specially adapted for supporting a number of parallel pipes at intervals
• G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
• H02G 3/04 - Protective tubing or conduits, e.g. cable ladders or cable troughs

Abstract

Provided is a packaging tube cable having a color recognition tape, comprising armored protection tubes (2) and a packaging protection layer (3); a hollow channel (1) is formed in the center of each tube body after the armored protection tubes (2) are molded, a cable, an optical fiber, or an oil liquid tube is placed within each hollow channel (1), and the packaging protection layer (3) wraps the periphery of the armored protection tubes (2); a plurality of armored protection tubes (2) are disposed within one packaging protection layer (3), and at least one group of color recognition tapes (4) are correspondingly arranged on the peripheral edge of each armored protection tube (2); and the preparation of the packaging tube cable mainly comprises two steps: the preparation of the armored protection tubes (2) and the preparation of the packaging protection layer (3). The present invention has a compact and reasonable arrangement and a dual function of conveying oil liquid and data transmission. The packaging protection layer (3) improves the corrosion resistance of the packaging tube cable, and the color recognition tape (4) is arranged in a position of the thinnest point of the packaging protection layer (3), facilitating tearing and packaging; in addition, each of the color recognition tapes (4) has a respective color identifier, helping items within each hollow channel (1) to be distinguished when in use.

IPC Classes  ?

• H01B 7/36 - Insulated conductors or cables characterised by their form with distinguishing or length marks
• H01B 7/00 - Insulated conductors or cables characterised by their form
• H01B 11/22 - Cables including at least one electrical conductor together with optical fibres

Abstract

Disclosed in the present invention is a pneumatic peeling tool. The top of a main base is connected to an upper gland by means of a screw. The middle of the top of the upper gland is connected to a handle by means of a screw. One end of the upper gland is connected to a pneumatic wrench fixing seat gland by means of a screw, and a pneumatic wrench is connected between the handle and the pneumatic wrench fixing seat gland. The outer side of one end of the pneumatic wrench is connected to a power wrench sleeve, a mounting hole is formed in the position of the main base corresponding to the power wrench sleeve, the inner side of one end of the power wrench sleeve is connected to a bottom wheel, the bottom wheel extends into the mounting hole, a cable to be peeled is provided between a third deep groove ball bearing, and the bottom wheel is in contact with said cable. The bottom wheel drives said cable to move, said cable moves to be in contact with a blade, the blade begins to cut a cable skin between two adjacent metal cores on the cable, the cable cores can be peeled conveniently, the third deep groove ball bearing, a pipe upper limiting block and a limiting shaft can ensure that the cable does not deviate in the cutting process, and the probability of damage to the cable cores is reduced.

IPC Classes  ?

• H02G 1/12 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
• H01B 15/00 - Apparatus or processes for salvaging material from cables

Abstract

A pneumatic stripping tool is provided. A top end of a main base is connected with an upper plate through screws; a middle part of a top end of the upper plate is connected with a handle through screws; one end of the upper plate is connected with a pneumatic-wrench fixing seat collar through screws; a pneumatic wrench is connected between the handle and the pneumatic-wrench fixing seat collar; the outer side of one end of the pneumatic wrench is connected with a power wrench sleeve; mounting holes are formed in portions of the main base which are corresponding to the power wrench sleeve; the inner side of one end of the power wrench sleeve is connected with a bottom wheel; and the bottom wheel extends into an inside of the mounting hole.

IPC Classes  ?

• H02G 1/12 - Methods or apparatus specially adapted for installing, maintaining, repairing, or dismantling electric cables or lines for removing insulation or armouring from cables, e.g. from the end thereof
• H01B 15/00 - Apparatus or processes for salvaging material from cables

Abstract

The present invention discloses an encapsulated duct cable with identification tags and a manufacturing method thereof. The logging encapsulated duct cable comprises an encapsulation layer. The cross section of the encapsulation layer is polygonal or arc-shaped. At least one cable protective tube and at least one oil-liquid tube are arranged in the encapsulation layer. A cable is arranged in the cable protective tube. Identification tags with different color identifiers are respectively arranged on one side of the cable protective tube and one side of the oil-liquid tube in one to one correspondence. The manufacturing method of the logging encapsulated duct cable mainly comprises three steps of machining the cable protective tube and paving the cable pavement, machining the oil-liquid tube, and machining the encapsulation layer. The present invention has double functions of conveying the oil and the liquid and transmitting the data.

IPC Classes  ?

• D07B 1/14 - Ropes or cables with incorporated auxiliary elements, e.g. for making, extending throughout the length of the rope or cable
• D07B 7/16 - Auxiliary apparatus

Abstract

The present invention discloses a logging encapsulated optical-fiber duct cable and a manufacturing method thereof. The encapsulated optical-fiber duct cable mainly comprises an external encapsulation layer. At least one armor tube is arranged in the encapsulation layer. An optical fiber protective tube is arranged in each armor tube. A filling layer is arranged in a space between the optical fiber protective tube and the armor tube. An optical fiber is arranged in the optical fiber protective tube. The manufacturing method mainly comprises four steps: pavement of the optical fiber and formation of the protective tube, formation of the filling layer, formation of the armor tube and formation of the encapsulation layer. The optical-fiber duct cable of the present invention has the advantages of large length, high strength, good temperature tolerance, small signal transmission loss, high transmission speed and synchronous transmission of multiple signals.

IPC Classes  ?

• G02B 6/44 - Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
• E21B 47/135 - 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 by electromagnetic energy, e.g. of radio frequency range using light waves, e.g. infrared or ultraviolet waves
• E21B 17/20 - Flexible or articulated drilling pipes

Abstract

An electric-submersible-pump composite duct cable is provided and includes a steel tube shell and an isolation layer. The isolation layer covers the outer circumferential surface of an ethylene-propylene jacket. The steel tube shell covers the outer circumferential surface of the isolation layer. Multiple signal cable assemblies and multiple injection agent tubes are arranged inside the isolation layer. Each signal cable assembly and each injection agent tube are in staggered arrangement at the internal center of the ethylene-propylene jacket. A manufacturing method of the electric-submersible-pump composite duct cable mainly includes two steps of manufacturing the isolation layer and machining the steel tube shell.

IPC Classes  ?

• H01B 7/02 - Disposition of insulation
• H01B 7/282 - Preventing penetration of fluid into conductor or cable
• H01B 7/04 - Flexible cables, conductors, or cords, e.g. trailing cables
• H01B 3/44 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes vinyl resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances plasticsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances resinsInsulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances waxes acrylic resins
• H01B 7/14 - Submarine cables

Abstract

The present invention discloses an integrated composite overload injection system and a working method thereof. The feeding mechanism preliminarily mixes water with a main agent and an auxiliary agent of an intelligent energy-gathered oil-displacing agent according to the ratio, the outlet of the feeding mechanism is communicated with the input port of the composite overload mechanism through a pipeline, the composite overload mechanism stirs, mixes, dissolves and overload ripens the preliminarily mixed solution to form mother solution, the mother solution is input from the output port of the composite overload mechanism to the inlet of the booster pump through a pipeline, the booster pump injects the boosted mother solution into the mixer, the mixer mixes the mother solution and the diluted high-pressure water and injects it into an oil-water well, and the power shafts of the composite overload mechanism and the booster pump are both driven by the driving mechanism.

IPC Classes  ?

• E21B 43/20 - Displacing by water
• B01F 7/00 - Mixers with rotary stirring devices in fixed receptacles; Kneaders
• B01F 21/00 - Dissolving
• B01F 21/10 - Dissolving using driven stirrers
• B01F 27/19 - Stirrers with two or more mixing elements mounted in sequence on the same axis
• B01F 33/82 - Combinations of dissimilar mixers

Abstract

The present invention discloses a multichannel composite coiled tubing (CCT). The multichannel composite coiled tubing includes three inner pipes and an insulator, where the insulator is provided therein with a plurality of the inner pipes; the insulator is nested inside a sheath; a protective layer is welded outside the sheath; a compressive layer is welded outside the protective layer; a plurality of armored tubes are bonded to the outside of the compressive layer; a fiber layer is bonded to the outside of the armored tubes. In the present invention, the operation and test procedures are simple, the pressure is easy to measure, and a water injection additive can be easily selected to match different reservoirs. In addition, the coiled tubing is insulated, satisfying pressure transmission and logging through two cables. The compressive layer and the armored tube are convenient for extending the life of the tubing.

IPC Classes  ?

• E21B 17/20 - Flexible or articulated drilling pipes
• G06F 30/17 - Mechanical parametric or variational design
• B32B 1/08 - Tubular products
• G06F 113/14 - Pipes

Abstract

A tubing for an electric submersible pump (ESP) for oil production. Cables are wrapped outside a first outer sheath at equal intervals; an inner side of the cable is covered with an insulating layer; an inner side of the insulating layer is covered with an aluminum tape; and a conductor is nested inside the aluminum tape. The inner pipe is combined with the cable to meet the oil production requirement of a coiled tubing (CT) and solve a power transmission problem of the submersible pump. The first outer sheath and a second outer sheath ensure that the tubing has a high bearing capacity and stability inside. A first steel belt and a second steel belt ensure a high resistance to pulling and deformation inside the tubing in use.

IPC Classes  ?

• E21B 17/20 - Flexible or articulated drilling pipes
• E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
• E21B 17/00 - Drilling rods or pipesFlexible drill stringsKelliesDrill collarsSucker rodsCasingsTubings
• F16L 11/127 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting electrically conducting

Abstract

The present invention provides an ultra-long thermally insulated pipeline, which includes a working steel pipe and an outer sleeve steel pipe sleeving the working steel pipe, where an annular vacuum cavity is formed between the working steel pipe and the outer sleeve steel pipe; two ends of the outer sleeve steel pipe are tightened; and the tightened parts of the outer sleeve steel pipe are sealed with an outer wall of the working steel pipe through a plurality of sealing rings. The ultra-long thermally insulated pipeline further includes a spiral ring supporting frame which is disposed outside the working steel pipe and is in contact with a wall of the working steel pipe. The spiral ring supporting frame is made of a phase change material The present invention further provides a forming method of an ultra-long thermally insulated pipeline.

IPC Classes  ?

• F16L 59/02 - Shape or form of insulating materials, with or without coverings integral with the insulating materials
• F16L 59/12 - Arrangements for supporting insulation from the wall or body insulated, e.g. by means of spacers between pipe and heat-insulating materialArrangements specially adapted for supporting insulated bodies
• C09K 5/06 - Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice-versa
• F16L 9/02 - Rigid pipes of metal
• B32B 15/18 - Layered products essentially comprising metal comprising iron or steel
• F16L 59/14 - Arrangements for the insulation of pipes or pipe systems
• F16L 59/147 - Arrangements for the insulation of pipes or pipe systems the insulation being located inwardly of the outer surface of the pipe
• F16L 59/125 - Helical spacers
• F16L 59/065 - Arrangements using an air layer or vacuum using vacuum
• B32B 1/08 - Tubular products
• B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
• B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments

Abstract

A super-long thermal insulation steel jacket pipe and a machining process for making such a pipe are provided. The pipe is designed to exhibit good thermal insulation performance and corrosion resistance. An annular cavity of the pipe is in a vacuum state, and the pipe is internally provided with a support frame and filled with a phase change material. When the pipe is used for underground energy exploitation, temperature in a working steel pipe in the pipe can be effectively kept unaffected when external temperature decreases. The steel jacket pipe has long service life, and can greatly reduce costs of exploitation of petroleum and/or of an underground heat source, such as by reducing a heat loss in exploitation.

IPC Classes  ?

• F16L 59/065 - Arrangements using an air layer or vacuum using vacuum
• C21D 6/00 - Heat treatment of ferrous alloys
• C21D 8/10 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
• C21D 9/14 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes wear-resistant or pressure-resistant pipes
• C21D 9/50 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for welded joints
• C22C 14/00 - Alloys based on titanium
• C22C 38/00 - Ferrous alloys, e.g. steel alloys
• C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C22C 38/42 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
• C22C 38/44 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
• C22F 1/18 - High-melting or refractory metals or alloys based thereon
• F16L 7/02 - Supporting pipes or cables inside other pipes or sleeves, e.g. for enabling pipes or cables to be inserted or withdrawn from under roads or railways without interruption of traffic and sealing the pipes or cables inside the other pipes, cables or sleeves
• B21D 39/00 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders
• C23F 11/173 - Macromolecular compounds

Abstract

A homogenization process for coiled tubing is provided. After being preheated in a sectional manner and quenched and tempered, laser-welded low-carbon alloy steel coiled tubing is spray cooled, and then is tempered to obtain homogeneous silvery coiled tubing. Microstructural uniformity of the silvery coiled tubing after the treatment is greatly improved in a welding seam region, a heat sensing region, and a tube wall, situations in which an outer surface of the coiled tubing is burnt and oxidized in the homogenization process are reduced, and a service life of the coiled tubing is prolonged. Moreover, homogeneous coiled tubing with different yield strengths and tensile strengths can be obtained by changing a temperature of the tempering, so that production costs are reduced.

IPC Classes  ?

• C21D 9/50 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for welded joints
• C21D 1/26 - Methods of annealing
• C21D 1/42 - Induction heating
• C21D 1/60 - Aqueous agents
• C21D 1/667 - Quenching devices for spray quenching
• C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
• C22C 38/00 - Ferrous alloys, e.g. steel alloys
• C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C22C 38/22 - Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
• C22C 38/24 - Ferrous alloys, e.g. steel alloys containing chromium with vanadium
• C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
• C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
• C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
• C23G 1/08 - Iron or steel

Abstract

The present application relates to a reinforced cable used for submersible pump, consisting of a fluororubber sheath, a filler, wire ropes and signal cables. The wire ropes and the signal cables are arranged in a central region of the cable; the filler is filled in the surrounding, and the fluororubber sheath is extruded outside the filler; and the signal cable comprises a conductor and an insulating bush, a sintered membrane is formed on an outer wall of the conductor, and the insulating bush is extruded outside the conductor.

IPC Classes  ?

• H01B 3/28 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances natural or synthetic rubbers
• H01B 7/24 - Devices affording localised protection against mechanical force or pressure
• H01B 7/282 - Preventing penetration of fluid into conductor or cable
• H01B 7/04 - Flexible cables, conductors, or cords, e.g. trailing cables
• H01B 7/18 - Protection against damage caused by external factors, e.g. sheaths or armouring by wear, mechanical force or pressure
• H01B 7/02 - Disposition of insulation
• H01B 7/28 - Protection against damage caused by external factors, e.g. sheaths or armouring by moisture, corrosion, chemical attack or weather
• E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells