Carbon fiber photoelectric composite cable and logging acquisition method

Abstract

The invention relates to the technical field of cased well logging, discloses a carbon fiber photoelectric composite cable and a logging acquisition method, and utilizes a carbon fiber material to replace a steel wire armoring structure of a traditional cable. The density of the carbon fiber material is 1.5-2g / cm < 3 >, the weight of the carbon fiber material is only 1 / 5 of that of steel, the tensile strength of the carbon fiber material is more than 5 times of that of steel, the highest temperature resistance of the material reaches 250 DEG C, and the material can resist corrosion of hydrogen sulfide, carbon dioxide and other gases in oil and gas wells. According to the composite cable, the carbon fibers are used for replacing a traditional double-layer stainless steel armor layer, so that the weight of the composite cable with the same outer diameter is greatly reduced, the load bearing performance of the composite cable is greatly improved, the surface of the composite cable is smooth and seamless, and high-pressure wellhead sealing is easier to achieve. The carbon fiber, the cable and the optical fiber are organically combined, the composite cable has the logging capacity of a traditional cable and the logging capacity of an optical fiber at the same time, the characteristics of light weight and good elasticity of the carbon fiber are utilized, and the composite cable combined with the injection head further has the horizontal well conveying capacity.

Description

Technical Field

[0001] The invention relates to the technical field of cased well logging, in particular to a carbon fiber photoelectric composite cable and a logging acquisition method. Background Art

[0002] Fiber optic sensing well logging technology uses a single optical fiber to measure parameters such as temperature, pressure, displacement, and flow rate in the entire well section, and obtain downhole information in a timely manner, which is of great significance for optimizing oil production plans and improving oilfield production efficiency. With the continuous development of fiber optic sensing technology, fiber optic logging technology is increasingly recognized by the oil industry. However, the currently used steel wire armored optoelectronic composite cable has problems such as weak corrosion resistance and low temperature resistance. The construction of highly deviated wells and horizontal wells requires the use of other transportation tools, such as continuous oil pipes or crawlers, which have disadvantages such as high construction costs and low efficiency. With the increasing demand for exploration and development towards ultra-deep wells, the temperature resistance, tensile strength, and corrosion resistance of traditional cables have become increasingly unable to meet the needs of well logging, and new types of well logging optical cables are needed to meet the logging needs of complex wellbores. Summary of the invention

[0003] In order to overcome the defects of the above-mentioned prior art, the purpose of the present invention is to provide a carbon fiber optoelectronic composite cable and a well logging collection method to solve the technical problems of weak corrosion resistance, low temperature resistance and low well logging collection efficiency of the optoelectronic composite cable in the traditional technology.

[0004] The present invention is achieved through the following technical solutions:

[0005] A carbon fiber optoelectronic composite cable comprises a carbon fiber optoelectronic composite cable body, wherein the carbon fiber optoelectronic composite cable body comprises a carbon fiber shell, a copper wire conductor, a conductor insulation layer, a stainless steel tube and a plurality of high temperature resistant bare optical fibers; the carbon fiber shell is wrapped around the outside of the copper wire conductor, the copper wire conductor is wrapped around the outside of the conductor insulation layer, the conductor insulation layer is wrapped around the outside of the stainless steel tube, and a plurality of high temperature resistant bare optical fibers are distributed in the stainless steel tube.

[0006] Preferably, the carbon fiber shell is made of carbon fiber material, and the outer diameter of the carbon fiber shell is 6-15 mm.

[0007] Preferably, the copper wire conductor is formed by winding and weaving a plurality of copper wire dense meshes, wherein the outer diameter of the copper wire is 0.1-0.3 mm.

[0008] Preferably, the wire insulation layer is made of high temperature resistant Teflon material, and the thickness of the wire insulation layer is 0.5 mm.

[0009] Preferably, the pressure resistance of the stainless steel pipe is greater than 100 MPa.

[0010] Preferably, the plurality of high temperature resistant bare optical fibers are multimode optical fibers, single mode optical fibers and weak grating optical fibers.

[0011] A well logging acquisition method, using the above-mentioned carbon fiber photoelectric composite cable, comprises the following steps:

[0012] The integrated logging engineering vehicle releases the carbon fiber optoelectronic composite cable by driving the carbon fiber optoelectronic composite cable drum, installs the wellhead and blowout preventer on the wellbore, and installs the injection head on the wellhead and blowout preventer. The end of the carbon fiber optoelectronic composite cable is hung with an electronic logging instrument, and the carbon fiber optoelectronic composite cable is clamped by the injection head and transported by hydraulic power, passing through the wellhead and blowout preventer, into the wellbore and descending into the wellbore to the target layer for collection.

[0013] Preferably, the integrated logging engineering vehicle is equipped with DTS logging equipment, DAS logging equipment, weak grating logging equipment and an electronic instrument collection panel, and collects formation information of the entire well section through the electronic logging instrument and the carbon fiber optoelectronic composite cable body.

[0014] Preferably, one multimode optical fiber is connected to the DTS logging equipment to perform DTS single-ended measurement; two multimode optical fibers are connected at the fiber tail ends, and then the two multimode optical fibers are connected to the double-ended DTS acquisition equipment to perform DTS double-ended measurement; the corresponding temperature weak grating optical fiber array is connected to the distributed weak grating temperature ground acquisition equipment, and the corresponding vibration weak grating optical fiber array is connected to the distributed weak grating vibration ground acquisition equipment to perform weak grating optical fiber measurement.

[0015] Preferably, the electronic logging tool comprises a temperature electronic logging tool, a pressure electronic logging tool, a magnetic positioning electronic logging tool and a gamma electronic logging tool.

[0016] Compared with the prior art, the present invention has the following beneficial technical effects:

[0017] The present invention provides a carbon fiber optoelectronic composite cable, which uses carbon fiber materials to replace the steel wire armor structure of traditional cables. The density of carbon fiber materials is 1.5-2g / cm3, the weight is only 1 / 5 of that of steel, the tensile strength is more than 5 times that of steel, the material has a maximum temperature resistance of 250°C, and can withstand the corrosion of gases such as hydrogen sulfide and carbon dioxide in oil and gas wells. The present invention uses carbon fiber to replace the traditional double-layer stainless steel armor layer, so that the weight of the composite cable with the same outer diameter is greatly reduced, and the load-bearing performance of the composite cable is greatly improved. The surface of the composite cable is smooth and seamless, and it is easier to achieve high-pressure wellhead sealing. The present invention organically combines carbon fiber, cable, and optical fiber. The composite cable has both traditional cable logging capabilities and optical fiber logging capabilities. Utilizing the characteristics of light weight and good elasticity of carbon fiber, the composite cable combined with the injection head also has horizontal well transportation capabilities. In addition, the heat resistance, pressure resistance, and corrosion resistance of the composite cable are better than those of traditional logging cables, and it has broad application prospects.

[0018] Furthermore, in terms of production technology, during the one-time molding process of the carbon fiber optoelectronic composite cable of the present invention, the conductor and the stainless steel tube are completely covered in the carbon fiber shell, so that the composite cable structure is tightened and has good sealing performance, and the optical fiber and the conductor are well protected during construction and underground operations. Due to the supporting effect of the carbon fiber shell, the steel wire armored cable will not soften the conductor insulation layer and reduce insulation due to the increase in temperature in a high temperature environment. The carbon fiber material itself has strong corrosion resistance, and the epoxy resin has excellent heat resistance. Both have strong mechanical properties. The composite cable has a high bending strength. The winding diameter of the composite cable with an outer diameter of 15mm is within 2.5m; the winding diameter of the composite cable with an outer diameter of 8mm is within 1m. The elastic memory function of the carbon fiber enables the composite cable to maintain good elasticity after repeated bending. At the same time, the surface of the carbon fiber cable has good wear resistance, and the friction coefficient is 0.325, which can effectively reduce the friction resistance in the horizontal well.

[0019] The present invention also provides a logging collection method, which uses a carbon fiber photoelectric composite cable in the logging construction. The composite cable can realize horizontal well logging construction by using a ground injection head, and can also realize horizontal well construction by using the wires in the composite cable to hang a crawler. At the same time, the carbon fiber cable has the advantages of light weight, high temperature resistance, corrosion resistance, smooth surface, high tensile strength, etc. It also has good adaptability in ultra-deep, high temperature and high pressure wells and highly corrosive oil and gas wells, and improves the ability to realize multiple data collection such as optical fiber collection and electronic collection in harsh environments such as horizontal wells, high temperature and high pressure wells, and highly corrosive oil and gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the carbon fiber photoelectric composite cable in the present invention;

[0021] Figure 2 This is a schematic diagram of using carbon fiber photoelectric composite cable for well logging data collection in the present invention.

[0022] In the figure: 1-carbon fiber shell; 2-copper wire conductor; 3-conductor insulation layer; 4-stainless steel tube; 5-high temperature resistant bare optical fiber; 6-well logging integrated engineering vehicle; 7-carbon fiber optoelectronic composite cable drum; 8-carbon fiber optoelectronic composite cable body; 9-injection head; 10-wellhead and blowout prevention device; 11-wellbore; 12-electronic logging instrument. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0025] The purpose of the present invention is to provide a carbon fiber optoelectronic composite cable and a logging collection method to solve the technical problems of weak corrosion resistance, low temperature resistance and low logging collection efficiency of the optoelectronic composite cable in the traditional technology.

[0026] The present invention combines optical fiber, wire and carbon fiber to form a carbon fiber photoelectric composite cable suitable for oil well logging, and then combines the optical fiber sensor to form a data acquisition method of the carbon fiber photoelectric composite cable. The carbon fiber photoelectric composite cable has the advantages of high temperature and high pressure resistance, corrosion resistance, light weight and good elasticity. It is very suitable for ultra-deep high temperature and high pressure wells, wells with strong corrosion and horizontal well construction, and has broad application prospects. The carbon fiber photoelectric composite cable of the present invention has the characteristics of good bending resistance, tensile resistance, heat resistance and corrosion resistance, and long service life. It can replace continuous oil pipe horizontal well logging and is suitable for complex well conditions such as small wells, ultra-deep wells, and horizontal wells.

[0027] The technical problem to be solved by the present invention is to provide a fiber optic logging technology suitable for small boreholes, ultra-deep wells, horizontal wells and other complex well conditions. By taking advantage of the high temperature resistance, corrosion resistance and good mechanical properties of carbon fiber, a carbon fiber shell is added to the outside of multiple optical fibers and wires to realize a carbon fiber optoelectronic composite cable that can both power downhole instruments and carry out fiber optic monitoring. The wires in the composite cable can be used to connect various single-core powered logging instruments, and crawlers can also be connected to realize longer-distance horizontal well logging; the optical fiber in the composite cable can be used to carry out a variety of optical fiber logging services such as distributed acoustic waves, distributed temperature, and high-sensitivity acoustic waves, and optical fiber can also be used as a communication medium to realize optical fiber communication.

[0028] The present invention realizes underground distributed optical fiber sensing measurement by combining single-mode optical fiber, multi-mode optical fiber and weak grating optical fiber. In view of the problem that bare optical fiber is easy to break and deactivate in actual engineering applications, the bare optical fiber is protected by a loose stainless steel tube. The steel tube containing the optical fiber inside is combined with two or more high-temperature resistant wires, and the outside is molded together with the carbon fiber material at one time.

[0029] During the logging process, the lower end of the composite cable can be connected to both the optical fiber sensor and the electronic instrument. The depth is calibrated through magnetic positioning and gamma instruments. An injection head is used on the ground to transport the carbon fiber optoelectronic composite cable. The outer diameter of the composite cable is 10-15mm.

[0030] For details, see Figure 1 In one embodiment of the present invention, a carbon fiber optoelectronic composite cable is provided, including a carbon fiber optoelectronic composite cable body 8, wherein the carbon fiber optoelectronic composite cable body 8 includes a carbon fiber shell 1, a copper wire conductor 2, a conductor insulation layer 3, a stainless steel tube 4 and a plurality of high-temperature resistant bare optical fibers 5; the carbon fiber shell 1 is wrapped around the outside of the copper wire conductor 2, the copper wire conductor 2 is wrapped around the outside of the conductor insulation layer 3, the conductor insulation layer 3 is wrapped around the outside of the stainless steel tube 4, and a plurality of high-temperature resistant bare optical fibers 5 are distributed in the stainless steel tube 4.

[0031] Specifically, the carbon fiber shell 1 is made of carbon fiber material, and the outer diameter of the carbon fiber shell 1 is 6-15 mm.

[0032] Specifically, the copper wire conductor 2 is formed by winding and weaving a plurality of copper wire dense meshes, wherein the outer diameter of the copper wire is 0.1-0.3 mm.

[0033] Specifically, the material of the wire insulation layer 3 is high temperature resistant Teflon material, and the thickness of the wire insulation layer 3 is 0.5 mm.

[0034] Specifically, the pressure resistance of the stainless steel pipe 4 is greater than 100 MPa.

[0035] In the present invention, the plurality of high temperature resistant bare optical fibers 5 are multimode optical fibers, single mode optical fibers and weak grating optical fibers.

[0036] The present invention also provides a well logging acquisition method, which uses the above-mentioned carbon fiber photoelectric composite cable and comprises the following steps:

[0037] The integrated logging engineering vehicle 6 releases the carbon fiber optoelectronic composite cable 8 by driving the carbon fiber optoelectronic composite cable drum 7, installs the wellhead and the blowout preventer 10 on the wellbore 11, and installs the injection head 9 on the wellhead and the blowout preventer 10. The end of the carbon fiber optoelectronic composite cable 8 is hung with an electronic logging instrument 12, and the carbon fiber optoelectronic composite cable 8 is clamped by the injection head 9 and transported by hydraulic power, passes through the wellhead and the blowout preventer 10, enters the wellbore 11, and descends into the wellbore 11 to the target layer for collection.

[0038] Among them, the integrated logging engineering vehicle 6 is equipped with DTS logging equipment, DAS logging equipment, weak grating logging equipment and electronic instrument collection panel, and collects formation information of the entire well section through the electronic logging instrument 12 and the carbon fiber optoelectronic composite cable body 8.

[0039] Among them, one multimode optical fiber is connected to the DTS logging equipment for DTS single-ended measurement; two multimode optical fibers are connected at the fiber tail end, and then the two multimode optical fibers are connected to the double-end DTS acquisition equipment for DTS double-end measurement; the corresponding temperature weak grating fiber array is connected to the distributed weak grating temperature ground acquisition equipment, and the corresponding vibration weak grating fiber array is connected to the distributed weak grating vibration ground acquisition equipment for weak grating fiber measurement.

[0040] Specifically, the electronic logging tool 12 includes a temperature electronic logging tool, a pressure electronic logging tool, a magnetic positioning electronic logging tool and a gamma electronic logging tool.

[0041] Example

[0042] This embodiment provides a carbon fiber optoelectronic composite cable, which consists of a carbon fiber shell 1, a copper wire conductor 2, a conductor insulation layer 3, a stainless steel tube 4, and a high-temperature resistant bare optical fiber 5, wherein the outer diameter of the stainless steel tube 4 is 2.2 mm.

[0043] The interior of the stainless steel tube 4 contains 2-6 optical fibers, which can be multimode optical fibers, single-mode optical fibers, and weak grating optical fibers as needed. The optical fiber and the steel tube are in a loose sleeve structure, and the stainless steel tube 4 is tightly wrapped with a conductor insulation layer 3. The insulation layer material is a high-temperature resistant Teflon material with a thickness of about 0.5mm, ensuring that the underground high-temperature environment has a good insulation effect. The copper wire conductor 2 is woven from a 0.1-0.3mm copper wire mesh, and its exterior is a carbon fiber shell 1, which plays a force-bearing role and an insulating role. The outer diameter can be made into 6mm-15mm as needed.

[0044] The stainless steel pipe 4 with an outer diameter of 2.2 mm is made of a stainless steel strip through pipe making and laser welding, is sealed without gaps, and is subjected to eddy current non-destructive testing online. The pressure resistance of the welded steel pipe is greater than 100 MPa.

[0045] The carbon fiber shell 1 is made of carbon fiber material with ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance, light weight, high wear resistance and high tear resistance, ensuring that the carbon fiber optical cable has good insulation and anti-aging properties, and can cope with the corrosion of various corrosive gases in oil and gas wells. The carbon fiber shell is prepared by pultrusion, which has the characteristics of simple molding process, high degree of mechanization and high production efficiency, which greatly reduces the overall weight of the cable and greatly improves the load-bearing performance and service life of the cable. Carbon fiber is an excellent material for corrosion resistance, compression resistance, temperature resistance and load-bearing of the optoelectronic composite cable of the present invention.

[0046] like Figure 2The figure is a schematic diagram of the construction of the carbon fiber optoelectronic composite cable. The construction process is: the integrated logging engineering vehicle 6 releases the carbon fiber optoelectronic composite cable 8 by driving the carbon fiber optoelectronic composite cable drum 7, and synchronizes the transmission with the injection head 9. The injection head 9 clamps the carbon fiber optoelectronic composite cable 8 and uses hydraulic power to transport the carbon fiber optoelectronic composite cable 8 through the wellhead and the blowout prevention device 10, into the wellbore 11, and down to the target layer. An electronic logging instrument 12 is hung at the bottom of the carbon fiber optoelectronic composite cable 8. The electronic logging instrument is generally an electronic instrument such as temperature, pressure, magnetic positioning and gamma in the well.

[0047] Well logging data collection method:

[0048] 1. The integrated logging engineering vehicle 6 is equipped with DTS, DAS, weak grating demodulation equipment and electronic instrument acquisition panel, and the electronic logging instrument 12 and high temperature resistant bare optical fiber 3 sense the formation information in the whole well section;

[0049] 2. The DTS single-ended measurement method can be achieved by connecting any multimode optical fiber to the DTS logging equipment;

[0050] 3. The DTS double-ended measurement method is to connect two multi-mode optical fibers at the fiber tail end, and then connect the two multi-mode optical fibers to the double-ended DTS acquisition device;

[0051] 4. DAS distributed fiber acoustic vibration measurement method can use any single-mode optical fiber;

[0052] 5. The weak grating fiber acquisition method is to connect the corresponding temperature weak grating fiber array to the distributed weak grating temperature ground acquisition device, and the corresponding vibration weak grating fiber array to the distributed weak grating vibration ground acquisition device;

[0053] 6. The electronic logging instrument can be connected to the copper wire 5, and it can also power the crawler to realize horizontal well transportation logging instrument logging.

[0054] The above logging methods can be carried out simultaneously or selectively.

[0055] In summary, the present invention provides a carbon fiber optoelectronic composite cable, which uses carbon fiber materials to replace the steel wire armor structure of traditional cables. The density of carbon fiber material is 1.5-2g / cm3, the weight is only 1 / 5 of that of steel, the tensile strength is more than 5 times that of steel, the material has a maximum temperature resistance of 250°C, and can withstand the corrosion of gases such as hydrogen sulfide and carbon dioxide in oil and gas wells. The present invention uses carbon fiber to replace the traditional double-layer stainless steel armor layer, so that the weight of the composite cable with the same outer diameter is greatly reduced, and the load-bearing performance of the composite cable is greatly improved. The surface of the composite cable is smooth and seamless, and it is easier to achieve high-pressure wellhead sealing. The present invention organically combines carbon fiber, cable, and optical fiber. The composite cable has both traditional cable logging capabilities and optical fiber logging capabilities. Utilizing the characteristics of light weight and good elasticity of carbon fiber, the composite cable combined with the injection head also has horizontal well transportation capabilities. In addition, the heat resistance, pressure resistance, and corrosion resistance of the composite cable are better than those of traditional logging cables, and it has broad application prospects.

[0056] In terms of production technology, during the one-time molding process of the carbon fiber optoelectronic composite cable of the present invention, the conductor and the stainless steel tube are completely covered in the carbon fiber shell, so that the composite cable structure is tightened and has good sealing performance, and the optical fiber and the conductor are well protected during construction and underground operations. Due to the supporting effect of the carbon fiber shell, the steel wire armored cable will not soften the conductor insulation layer and reduce insulation due to the increase in temperature in a high temperature environment. The carbon fiber material itself has strong corrosion resistance, and the epoxy resin has excellent heat resistance. Both have strong mechanical properties. The composite cable has a high bending strength. The winding diameter of the composite cable with an outer diameter of 15mm is within 2.5m; the winding diameter of the composite cable with an outer diameter of 8mm is within 1m. The elastic memory function of the carbon fiber enables the composite cable to maintain good elasticity after repeated bending. At the same time, the surface of the carbon fiber cable has good wear resistance, and the friction coefficient is 0.325, which can effectively reduce the friction resistance in horizontal wells.

[0057] The present invention also provides a logging collection method. By using a carbon fiber photoelectric composite cable in logging construction, the composite cable can realize horizontal well logging construction by using a ground injection head, and can also realize horizontal well construction by using the wires in the composite cable to hang a crawler. At the same time, the carbon fiber cable has the advantages of light weight, high temperature resistance, corrosion resistance, smooth surface, high tensile strength, etc., and has good adaptability in ultra-deep, high temperature and high pressure wells and highly corrosive oil and gas wells. It improves the ability to realize multiple data collection such as optical fiber collection and electronic collection in harsh environments such as horizontal wells, high temperature and high pressure wells, and highly corrosive oil and gas.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A carbon fiber optoelectronic composite cable, It is characterized in that The invention comprises a carbon fiber photoelectric composite cable body (8), wherein the carbon fiber photoelectric composite cable body (8) comprises a carbon fiber shell (1), a copper wire conductor (2), a conductor insulation layer (3), a stainless steel tube (4) and a plurality of high temperature resistant bare optical fibers (5); the carbon fiber shell (1) is wrapped around the outside of the copper wire conductor (2), the copper wire conductor (2) is wrapped around the outside of the conductor insulation layer (3), the conductor insulation layer (3) is wrapped around the outside of the stainless steel tube (4), and the plurality of high temperature resistant bare optical fibers (5) are distributed inside the stainless steel tube (4).

2. A carbon fiber optoelectronic composite cable according to claim 1, It is characterized in that The carbon fiber shell (1) is made of carbon fiber material, and the outer diameter of the carbon fiber shell (1) is 6-15 mm.

3. A carbon fiber optoelectronic composite cable according to claim 1, It is characterized in that The copper wire conductor (2) is formed by winding and weaving a plurality of copper wire dense meshes, wherein the outer diameter of the copper wire is 0.1-0.3 mm.

4. The carbon fiber optoelectronic composite cable according to claim 1, It is characterized in that The material of the wire insulation layer (3) is high temperature resistant Teflon material, and the thickness of the wire insulation layer (3) is 0.5 mm.

5. The carbon fiber optoelectronic composite cable according to claim 1, It is characterized in that The pressure resistance of the stainless steel pipe (4) is greater than 100 MPa.

6. The carbon fiber optoelectronic composite cable according to claim 1, It is characterized in that The plurality of high temperature resistant bare optical fibers (5) are multimode optical fibers, single mode optical fibers and weak grating optical fibers.

7. A well logging acquisition method, using a carbon fiber optoelectronic composite cable according to any one of claims 1 to 6, It is characterized in that The steps include: The well logging integrated engineering vehicle (6) drives the carbon fiber photoelectric composite cable drum (7) to release the carbon fiber photoelectric composite cable (8), installs the wellhead and the blowout prevention device (10) on the wellbore (11), and installs the injection head (9) on the wellhead and the blowout prevention device (10). The end of the carbon fiber photoelectric composite cable (8) is connected to the electronic well logging instrument (12), and the carbon fiber photoelectric composite cable (8) is clamped by the injection head (9) and transported by hydraulic power, passes through the wellhead and the blowout prevention device (10), enters the wellbore (11), and descends into the wellbore (11) to the target layer for collection.

8. A well logging acquisition method according to claim 7, It is characterized in that The integrated logging engineering vehicle (6) is equipped with DTS logging equipment, DAS logging equipment, weak grating logging equipment and an electronic instrument collection panel, and collects formation information of the entire well section through an electronic logging instrument (12) and a carbon fiber photoelectric composite cable body (8).

9. A well logging acquisition method according to claim 7, It is characterized in that Connect one multimode optical fiber to the DTS logging equipment for DTS single-ended measurement; connect two multimode optical fibers at the fiber tail end, and then connect the two multimode optical fibers to the double-ended DTS acquisition equipment for DTS double-ended measurement; connect the corresponding temperature weak grating optical fiber array to the distributed weak grating temperature ground acquisition equipment, and connect the corresponding vibration weak grating optical fiber array to the distributed weak grating vibration ground acquisition equipment for weak grating optical fiber measurement.

10. A well logging acquisition method according to claim 7, It is characterized in that The electronic well logging instrument (12) comprises a temperature electronic well logging instrument, a pressure electronic well logging instrument, a magnetic positioning electronic well logging instrument and a gamma electronic well logging instrument.

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