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.

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.

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.

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.

Abstract: A pneumatic stripping tool is provided. A top end of a main base is connected with an upper gland through screws; a middle part of a top end of the upper gland is connected with a handle through screws; one end of the upper gland is connected with a pneumatic-wrench fixing seat gland through screws; 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 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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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.

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 slivery 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.