Well logging packaging pipe cable

Abstract

The utility model discloses a well logging packaging pipe cable which comprises a packaging layer, a tensile stress pipe located in the packaging layer, an outer protection layer arranged in the tensile stress pipe, an optical fiber I and a cable core I which are arranged in the outer protection layer, and a filling layer filled in the outer protection layer. The cable core I is sleeved with a sleeve, a plurality of limiting supports are arranged on the outer wall of the sleeve in the radial direction, and arc-shaped plates attached to the outer protective layer in a supporting mode are arranged at the ends of the limiting supports. The optical fibers I are located in gaps between the adjacent limiting supports. According to the utility model, the cable core and the optical fiber are arranged in the well packaging tube at the same time, so that well logging sealing detection elements suitable for different requirements can be conveniently installed; and the well logging packaging pipe cable can be conveniently and quickly connected with a joint of a well logging sealing detection element.

Description

TECHNICAL FIELD

[0001] The utility model relates to logging cable technical field especially relates to a logging encapsulation pipe cable. BACKGROUND

[0002] Logging cable can be used in logging, perforating, coring and other operations of various oil and gas wells, and can also be used in water conservancy and hydrology measurement, coalfield geological exploration, geothermal logging and other aspects, and is a connecting line for bearing connection and transmission of measurement data between ground system and underground instrument. The existing oil well working condition is relatively poor, and is often in a high-temperature, high-pressure and oil-gas-containing corrosive medium environment, and is limited by the narrow space of the oil well casing, so the cable is often bent or corroded and damaged during installation. For logging cable with a length of several kilometers or even ten kilometers, how to improve the compression resistance, tensile resistance and corrosion resistance of the logging cable is a problem to be solved. In addition, in the prior art, the logging cable and the logging internal detection element are not convenient to quickly connect. SUMMARY

[0003] The utility model discloses a logging encapsulation pipe cable, and solves the problem that the conventional logging cable and the logging internal detection element are not convenient to quickly connect.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme:

[0005] The utility model provides a logging encapsulation pipe cable, which comprises an encapsulation layer, a tensile stress pipe in the encapsulation layer, an outer protective layer arranged in the tensile stress pipe, an optical fiber I and a cable core I arranged in the outer protective layer, and a filling layer filled in the outer protective layer.

[0006] A sleeve is arranged on the cable core I, a plurality of limiting supports are arranged on the outer wall of the sleeve in the radial direction, and the end portion of the limiting support is provided with an arc-shaped plate that supports and is attached to the outer protective layer.

[0007] The optical fiber I is located in the gap between adjacent limiting supports.

[0008] Further, an optoelectrical contact receiving piece connected to the optical fiber I and the cable core I is sealingly arranged in the end portion of the tensile stress pipe.

[0009] A locking screw is arranged on the outer wall of the end portion of the tensile stress pipe to lock and connect the detection element joint, and an optoelectrical contact plug-in piece is arranged in the detection element joint to be adaptively plugged with the optoelectrical contact receiving piece.

[0010] Further, an optical fiber plug-in joint connected to the optical fiber I and a conductive plug-in joint connected to the cable core I are arranged in the optoelectrical contact receiving piece.

[0011] Further, the tensile stress pipe is a tensile steel pipe, and the tensile strength of the tensile steel pipe is greater than 625 MPa.

[0012] Further, the packaging layer is a thermoplastic vulcanized rubber TPV material; the outer protective layer is a polymer material; and the filling layer comprises PVC, PE or EPDM.

[0013] Compared with the prior art, the utility model has the beneficial technical effects that:

[0014] In the utility model, the cable core and the optical fiber are simultaneously arranged in the well packaging pipe, so that the well sealing detection element suitable for different requirements can be conveniently installed, and the well packaging pipe cable of the application can be quickly connected with the joint of the well sealing detection element. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further described in connection with the drawings.

[0016] Figure 1 Fig. 1 is a sectional view of the well packaging pipe cable of the utility model;

[0017] Figure 2 Fig. 2 is a joint structure schematic view of the well packaging pipe cable of the utility model;

[0018] Figure 3 Fig. 3 is a schematic view of the upper joint;

[0019] Figure 4 Fig. 4 is a schematic view of the lower joint.

[0020] Mark 100, packaging layer; 200, tensile stress pipe; 300, outer protective layer; 400, limiting support; 401, sleeve; 402, arc plate; 500, filling layer; 600, I; 601, cable core II; 700, optical fiber I; 701, cable core II; 800, photoelectric contact receiving part; 801, photoelectric contact plug-in part; 900, locking screw. DETAILED DESCRIPTION

[0021] As Figure 1As shown, the well logging package cable in the embodiment comprises a package layer 100, a tensile stress resistant pipe 200 located in the package layer 100, an outer sheath 300 installed in the tensile stress resistant pipe 200, an optical fiber I 700 and a cable core I 600 installed in the outer sheath 300, and a filling layer 500 filled in the outer sheath 300; wherein a sleeve 401 is sleeved on the cable core I 600, three limiting supports 400 are radially installed on the outer wall of the sleeve 401, and arc-shaped plates 402 which are supported and adhered to the outer sheath 300 are installed at the ends of the limiting supports 400; wherein the optical fiber I 700 is located in the gap between adjacent limiting supports 400.

[0022] In the embodiment, the tensile stress resistant pipe 200 is a tensile steel pipe, and the tensile strength of the tensile steel pipe is greater than 625 MPa. The package layer 100 is a thermoplastic vulcanized rubber TPV material; wherein the outside of the package layer 100 can be designed as an anti-skid stripe structure. The outer sheath 300 is a polymer material, and specifically can be a PP material; and the filling layer 500 comprises PVC, PE or EPDM.

[0023] As shown in Figure 2 and Figure 3 An optical-electric contact adapter 800 connected to the optical fiber I 700 and the cable core I 600 respectively is sealingly installed in the end of the tensile stress resistant pipe 200; in the embodiment, in order to prevent the substances in the oil well from entering from the lower end of the tensile stress resistant pipe 200, the optical-electric contact adapter 800 is made of a corrosion-resistant and high-temperature-resistant material, such as polytetrafluoroethylene; an optical fiber adapter connected to the optical fiber I 700 and a conductive adapter connected to the cable core I 600 are installed in the optical-electric contact adapter 800.

[0024] In the embodiment, a locking screw 900 for locking a detection element adapter is installed on the outer wall of the end of the tensile stress resistant pipe 200; wherein an optical-electric contact adapter 801 which is adaptively plugged with the optical-electric contact adapter 800 is installed in the detection element adapter; an outer thread which is adaptively matched with the locking screw 900 is prefabricated on the outside of the detection element adapter.

[0025] As shown in Figure 3 and Figure 4As shown, in actual implementation, the photoelectric contact plug 801 is also made of PTFE, and the cable core II 601 and the cable core II 701 are also arranged in the photoelectric contact plug 801; the cable core II 601 and the cable core II 701 are respectively connected with the conductive plug and the optical fiber plug protruding from the end face of the photoelectric contact plug 801. Thus, the conductive plug and the optical fiber plug on the end face of the photoelectric contact plug 801 are respectively connected with the optical fiber plug and the conductive plug in the photoelectric contact socket 800.

[0026] The above embodiments only describe the preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements of the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. A logging encapsulated tube cable, characterized by: The cable comprises a packaging layer (100), a tensile stress resistant pipe (200) in the packaging layer (100), an outer protective layer (300) arranged in the tensile stress resistant pipe (200), an optical fiber I (700) and a cable core I (600) arranged in the outer protective layer (300), and a filling layer (500) filled in the outer protective layer (300); A sleeve (401) is arranged on the cable core I (600), a plurality of limiting supports (400) are arranged on the outer wall of the sleeve (401) in the radial direction, and the end of the limiting support (400) is provided with an arc-shaped plate (402) which is supported and adhered to the outer protective layer (300). The optical fiber I (700) is arranged in the gap between adjacent limiting supports (400).

2. The logging encapsulated tube cable of claim 1, wherein: Optoelectronic contact adapters (800) are arranged in the end of the tensile stress resistant pipe (200) and connected with the optical fiber I (700) and the cable core I (600) respectively. A locking nut (900) for locking the connecting detection element joint is arranged on the outer wall of the end of the tensile stress resistant pipe (200); an optoelectronic contact plug-in element (801) which is adapted to plug-in with the optoelectronic contact adapter (800) is arranged in the detection element joint.

3. The logging encapsulated tube cable of claim 2, wherein: An optical fiber plug-in joint connected with the optical fiber I (700) and a conductive plug-in joint connected with the cable core I (600) are arranged in the optoelectronic contact adapter (800).

4. The logging encapsulated tube cable of claim 3, wherein: The tensile stress resistant pipe (200) is a tensile steel pipe, and the tensile strength of the tensile steel pipe is greater than 625 MPa.

5. The logging encapsulated tube cable of claim 4, wherein: The packaging layer (100) is a thermoplastic vulcanized rubber TPV material; the outer protective layer (300) is a polymer material; and the filling layer (500) comprises PVC, PE or EPDM.

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