CN114664487A - Video data acquisition logging cable - Google Patents

Abstract

The invention relates to a video data acquisition logging cable. The video data acquisition logging cable comprises an outer cladding, a plurality of leads are arranged in the outer cladding in a surrounding mode, fillers are filled in gaps between the outer cladding and the leads, the leads comprise hollow hoses, first fillers are filled in hollow positions inside the hollow hoses, a plurality of wire cores are arranged on the outer side walls of the hollow hoses in a surrounding mode, the plurality of wire cores are wound on the outer side walls of the hollow hoses, two adjacent wire cores wound on the outer side walls of each hollow hose are far away from each other, outer wrapping pipes are further sleeved on the hollow hoses, and the outer wrapping pipes wrap the plurality of wire cores on the corresponding hollow hoses; the elastic piece is positioned in the outer cladding and is elastically connected with the inner wall of the outer cladding; the armor layer is sleeved on the outer cladding layer; a sheath. The video data acquisition logging cable provided by the invention has the advantages of strong tensile strength, capability of ensuring normal transmission of cable signals and long service life.

Description

Video data acquisition logging cable

Technical Field

The invention belongs to the technical field of logging cables, and particularly relates to a video data acquisition logging cable.

Background

The logging cable is used for logging, perforating, coring and other operations of various oil wells and gas wells, can also be used for water conservancy hydrological measurement, coal field geological exploration, geothermal logging and other aspects, and is a connecting wire for hanging heavy connection and transmitting measurement data between a ground system and an underground instrument. During downhole operations, it is often necessary to observe and record data of the downhole environment using video data acquisition equipment. The logging cable is used for data transmission between the downhole and the surface.

In the process of recording underground environment data by using video data acquisition equipment, the underground environment is complex, the cable traction condition can occur, the wire core for transmitting signals inside a common cable is a straight line, when the cable is subjected to front tension, the wire core inside the cable can also be subjected to certain tension, the cable is deformed, and when the wire core is subjected to larger rigid tension, cracks or even fracture conditions easily occur to influence the signal transmission.

Disclosure of Invention

In order to solve the problems in the prior art, the invention provides the video data acquisition logging cable which is strong in tensile strength, capable of ensuring normal transmission of cable signals and long in service life. The technical problem to be solved by the invention is realized by the following technical scheme:

the invention provides a video data acquisition logging cable, which comprises: the outer coating is internally provided with a plurality of wires in a surrounding manner, and fillers are filled in gaps between the outer coating and the plurality of wires; the elastic piece is positioned in the outer cladding and is elastically connected with the inner wall of the outer cladding; the armor layer is sleeved on the outer cladding layer; the sheath is sleeved on the armor layer.

Preferably, the outer cladding layer comprises an anti-corrosion layer, an insulating layer and a magnetism insulation layer, the anti-corrosion layer, the insulating layer and the magnetism insulation layer are sequentially arranged from outside to inside, and the filler is filled in gaps between the magnetism insulation layer and the plurality of wires.

Preferably, the anticorrosive layer selects a mixed material of nano carbon black and bimodal polyethylene as an anticorrosive material, the insulating layer selects a silicon rubber material as an insulating material, and the magnetism-insulating layer selects a mixed material of silicon nitride ceramic powder as a magnetism-insulating material.

Preferably, the elastic part includes the elastic tube, and the elastic tube is located inside the magnetic insulation layer, and the elastic tube sets up and inside is filled with the second for well accuse, installs the multiunit arc elastic rod that vertical range set up on the lateral wall of elastic tube, and a plurality of arc elastic rods in every group arc elastic rod encircle the elastic tube setting.

Preferably, a plurality of wires and a plurality of arc elastic rod crisscross setting, and the one side that elastic tube was kept away from to arc elastic rod offsets with magnetic isolation layer and sets up.

Preferably, the armor is formed from a plurality of steel wire-wrapped corrosion protection layers.

Preferably, the sheath includes the abrasionproof pipe, and the armor is outside to the abrasionproof pipe box is located, and is equipped with outer the strip that leaks on the lateral wall of abrasionproof pipe, and a plurality of outer strip that leak encircle to arrange in the armor outside.

Preferably, the wear-resistant pipe is bonded with the armor layer through an adhesive glue.

Preferably, the filler, the first filler and the second filler are all elastic plastics.

Compared with the prior art, the invention has the beneficial effects that:

1. the wire comprises a hollow hose, a first filler, wire cores and an outer wrapping pipe, wherein a plurality of wire cores are arranged and wound on the hollow hose, a certain gap is formed between the wire cores, when the cable is pulled, the wire cores can be stretched and extruded to the hollow hose, the wire cores cannot be directly pulled rigidly to be damaged or even broken, the signal normal transmission of the wire cores in the cable is ensured, and the first filler filled in the hollow hose has certain elasticity, so that the wire cores can be recovered to an initial state when no pulling force exists;

2. the outer cladding layer consists of an anticorrosive layer, an insulating layer and a magnetism isolating layer, has good corrosion resistance, insulativity and magnetism isolating performance, enables the cable to have strong corrosion resistance, insulation and electromagnetic interference resistance functions, and can prevent the cable from being influenced by external electromagnetic interference to influence signal transmission;

3. the elastic part is arranged in the outer cladding, the elastic part consists of the elastic tube, the second filler and the arc-shaped elastic rod, and has good elastic restoring force, the elastic part is arranged in the outer cladding and is matched with the conducting wire and the filler to support the outer cladding, when the cable is extruded, the arc-shaped elastic rod outside the elastic tube is extruded and extrudes the elastic tube, the sudden impact force applied to the cable is reduced, the impact force is reduced, the cable is protected, and after the cable is not extruded any more, the state restoring force of the cable is enhanced by matching with other components such as the filler and the like;

4. the anti-abrasion device is characterized in that the outer covering layer is provided with the armor layer, the steel wires are in a spring shape and are sleeved on the anti-corrosion layer in a mutually close fit mode to form the outer armor of the cable, the tensile capacity of the cable is enhanced, the armor layer is provided with the sheath to protect the armor, the use safety of the cable is improved, when the cable is dragged on the ground, the anti-abrasion pipe is not directly contacted with the ground, but the outer leakage strip is contacted with the ground, the anti-abrasion pipe is protected, and the service life of the sheath is prolonged.

Drawings

FIG. 1 is a schematic structural diagram of a video data acquisition logging cable according to a preferred embodiment of the present invention;

FIG. 2 is a schematic structural view of an overwrap according to the invention;

FIG. 3 is a schematic view of the structure of the present invention with the conductive wires distributed around the elastic member;

FIG. 4 is a schematic view of the structure of the lead of the present invention;

FIG. 5 is a schematic view of the structure of the present invention with the core of wire distributed around the hollow hose;

FIG. 6 is a schematic view of the structure of the elastic member of the present invention;

fig. 7 is a schematic view of the structure of the sheath of the present invention.

Reference numbers in the figures: 1. an outer cladding; 11. an anticorrosive layer; 12. an insulating layer; 13. a magnetic insulating layer; 2. a wire; 21. a hollow hose; 22. a first filler; 23. a wire core; 24. wrapping the tube; 3. an elastic member; 31. an elastic tube; 32. a second filler; 33. an arc-shaped elastic rod; 4. an armor layer; 5. a sheath; 51. an anti-wear tube; 52. and (6) an outer leakage strip.

Detailed Description

The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.

Example one

Referring to fig. 1 to 7, an outer cladding layer 1, a plurality of wires 2 arranged around the inside of the outer cladding layer 1, and a filler is filled in a gap between the outer cladding layer 1 and the plurality of wires 2, the wires 2 include hollow hoses 21, a first filler 22 is filled in a hollow part inside the hollow hose 21, a plurality of wire cores 23 arranged around the outer side wall of the hollow hose 21 are arranged on the outer side wall of the hollow hose 21, the plurality of wire cores 23 are all wound on the outer side wall of the hollow hose 21, two adjacent wound wire cores 23 on the outer side wall of each hollow hose 21 are all arranged away from each other, an outer cladding tube 24 is further sleeved on the hollow hose 21, and the outer cladding tube 24 wraps the plurality of wire cores 23 on the corresponding hollow hose 21; the elastic piece 3 is positioned in the outer cladding layer 1 and is elastically connected with the inner wall of the outer cladding layer 1; the armor layer 4 is sleeved on the outer cladding layer 1; and the sheath 5 is sleeved on the armor layer 4.

What is needed is: the wire 2 is arranged inside the outer cladding layer 1, the wire 2 is protected by the outer cladding layer 1, the elastic piece 3 is arranged inside the outer cladding layer 1, the restoration after the extrusion deformation of the cable is facilitated, the cable is reinforced by the armor layer 4, the sheath 5 reinforces the whole cable once more, the wear resistance of the cable is improved, the wire 2 comprises a hollow hose 21, a first filler 22, a wire core 23 and an outer cladding pipe 24, a plurality of wire cores 23 are arranged and wound on the hollow hose 21 and form a certain gap with each other, when the cable is pulled, the wire core 23 can be stretched and extruded on the hollow hose 21, the wire core 23 cannot be directly pulled rigidly to damage or even break, the normal transmission of signals of the wire core 23 in the cable is ensured, the first filler 22 filled inside the hollow hose 21 has certain elasticity, and the wire core 23 can be restored to an initial state without pulling force, the outer cladding tube 24 and the hollow hose 21 limit the wire core 23 in the gap between the two, and limit the wire core 23.

Example two

Referring to fig. 2, fig. 2 is a schematic structural view of the outer cladding 1 of the present invention. In the present embodiment, the outer cladding layer 1 is described in detail with emphasis on the above embodiment. Specifically, the outer cladding layer 1 comprises an anti-corrosion layer 11, an insulating layer 12 and a magnetism isolating layer 13, the anti-corrosion layer 11, the insulating layer 12 and the magnetism isolating layer 13 are sequentially arranged from outside to inside, and fillers are filled in gaps between the magnetism isolating layer 13 and the plurality of wires 2.

It should be noted that: the outer cladding layer 1 of the cable is provided with the anticorrosion performance, the insulation performance and the magnetism insulation performance through the anticorrosion layer 11, the insulation layer 12 and the magnetism insulation layer 13, so that the cable has the functions of corrosion resistance, insulation and electromagnetic interference resistance.

EXAMPLE III

In this embodiment, the materials of the anti-corrosion layer 11, the insulating layer 12 and the magnetic insulating layer 13 are described in detail. Specifically, the anticorrosive layer 11 selects a mixed material of nano carbon black and bimodal polyethylene as an anticorrosive material, the insulating layer 12 selects a silicon rubber material as an insulating material, and the magnetism-insulating layer 13 selects a mixed material of silicon nitride ceramic powder as a magnetism-insulating material.

It should be noted that: the anticorrosion layer 11 made of the mixed material of the nano carbon black and the bimodal polyethylene has strong anticorrosion performance, the insulating layer 12 made of the silicon rubber material has good insulativity and good high-temperature and low-temperature resistance, and is beneficial to the underground use of the cable, and the magnetism insulating layer 13 is made of the mixed material of the silicon nitride ceramic powder and has good magnetism insulating property, so that the signal transmission of the cable can be prevented from being influenced by external electromagnetic interference.

Example four

Referring to fig. 6, a schematic structural view of the elastic member 3 of the present invention is shown. In the present embodiment, the elastic member 3 is described in detail with emphasis on the above embodiment. Specifically, the elastic member 3 includes an elastic tube 31, the elastic tube 31 is located inside the magnetic insulating layer 13, the elastic tube 31 is disposed for central control, and the second filler 32 is filled inside the elastic tube 31, a plurality of sets of arc-shaped elastic rods 33 are vertically arranged on the outer side wall of the elastic tube 31, and the plurality of arc-shaped elastic rods 33 in each set of arc-shaped elastic rods 33 are disposed around the elastic tube 31.

It should be noted that: elastic tube 31, elastic component 3 is constituteed to second filler 32 and arc elastic rod 33, fine elastic restoring force has, elastic component 3 is installed inside 1 surrounding layer, cooperation wire 2 and filler support 1 surrounding layer, when the cable receives the extrusion, can extrude arc elastic rod 33 in the elastic tube 31 outside, and extrude elastic tube 31, slow down the sudden impact force that the cable received, can slow down impact force, thereby protect the cable, no longer receive the extrusion back at the cable, other subassemblies such as cooperation filler, the state of strengthening the cable resumes.

EXAMPLE five

Referring to fig. 3, fig. 3 is a schematic structural view of the conductive wire 2 distributed around the elastic member 3 according to the present invention. In the present embodiment, the positions of the lead wires 2 and the elastic members 3 are described in detail in addition to the above embodiment. Specifically, the plurality of wires 2 and the plurality of arc-shaped elastic rods 33 are arranged in a staggered manner, and one side of the arc-shaped elastic rods 33, which is far away from the elastic tube 31, is abutted against the magnetism insulating layer 13.

It should be noted that: the wires 2 are positioned between two adjacent arc-shaped elastic rods 33, so that a plurality of wires 2 can be uniformly distributed in the outer cladding 1, and the stress of the cable is uniform.

EXAMPLE six

The armor layer 4 is formed by a plurality of steel wires wrapped around the corrosion protection layer 11.

It should be noted that: the steel wires are in a spring shape and are tightly attached to each other, and the steel wires are sleeved on the anticorrosive layer 11 to form external armor of the cable and enhance the tensile capacity of the cable.

EXAMPLE seven

Referring to fig. 7, fig. 7 is a schematic structural view of the sheath 5 of the present invention. In the present embodiment, the structure of the sheath 5 is described in detail in addition to the above embodiment. Specifically, the sheath 5 includes an anti-wear pipe 51, the anti-wear pipe 51 is sleeved outside the armor layer 4, an outer side wall of the anti-wear pipe 51 is provided with an outer leaking strip 52, and the outer leaking strips 52 are arranged outside the armor layer 4 in a surrounding manner.

It should be noted that: the sheath 5 is by setting up in the abrasionproof pipe 51 outside and encircle a plurality of outer strip 52 that leak that arrange the setting and constitute, sheath 5 protects armor 4, prevent it from rustting, burr etc. probably can appear in the armor that the steel wire was made simultaneously, entangle it through abrasionproof pipe 51, the safety in utilization of improvement cable, when the cable drags subaerial, abrasionproof pipe 51 is not direct with ground contact, but leak strip 52 and ground contact outward, protect abrasionproof pipe 51, the life of sheath 5 is improved.

Example eight

The wear-resistant pipe 51 is bonded to the armor layer 4 by an adhesive.

It should be noted that: the wear-proof pipe 51 is bonded to the steel wire in the armor layer 4, so that the wear-proof pipe and the steel wire are firmly connected, and the sheath 5 is prevented from loosening.

Example nine

The filler, first filler 22 and second filler 32 are all resilient plastics.

It should be noted that: the elastic plastic has certain elasticity and certain restoring force, and is low in manufacturing cost.

The foregoing is a further detailed description of the invention in connection with specific preferred embodiments and it is not intended to limit the invention to the specific embodiments described. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims (9)

1. A video data acquisition logging cable, comprising:

the cable comprises an outer cladding layer (1), wherein a plurality of wires (2) are arranged in the outer cladding layer (1) in a surrounding mode, a filler is filled in a gap between the outer cladding layer (1) and the plurality of wires (2), each wire (2) comprises a hollow hose (21), a first filler (22) is filled in the hollow part of the hollow hose (21), a plurality of wire cores (23) are arranged on the outer side wall of each hollow hose (21) in a surrounding mode, the plurality of wire cores (23) are all wound on the outer side wall of each hollow hose (21), two adjacent wound wire cores (23) on the outer side wall of each hollow hose (21) are far away from each other, an outer wrapping pipe (24) is further sleeved on each hollow hose (21), and the outer wrapping pipe (24) wraps the plurality of wire cores (23) on the corresponding hollow hose (21);

the elastic piece (3) is positioned in the outer cladding (1) and is elastically connected with the inner wall of the outer cladding (1);

the armor layer (4), the armor layer (4) is sleeved on the outer cladding layer (1);

the sheath (5) is sleeved on the armor layer (4).

2. The video data acquisition logging cable of claim 1, wherein the outer cladding (1) comprises an anti-corrosion layer (11), an insulating layer (12) and a magnetic isolation layer (13), and the anti-corrosion layer (11), the insulating layer (12) and the magnetic isolation layer (13) are sequentially arranged from outside to inside, and the filler is filled in gaps between the magnetic isolation layer (13) and the plurality of wires (2).

3. The video data acquisition logging cable according to claim 2, wherein the corrosion-resistant layer (11) is made of a nano carbon black and bimodal polyethylene mixed material, the insulating layer (12) is made of a silicone rubber material, and the magnetic-insulating layer (13) is made of a silicon nitride ceramic powder mixed material.

4. The video data acquisition logging cable according to claim 2, wherein the elastic member (3) comprises an elastic tube (31), the elastic tube (31) is located inside the magnetic insulating layer (13), the elastic tube (31) is arranged for central control and is internally filled with a second filler (32), a plurality of groups of arc-shaped elastic rods (33) are vertically arranged on the outer side wall of the elastic tube (31), and the plurality of arc-shaped elastic rods (33) in each group of arc-shaped elastic rods (33) are arranged around the elastic tube (31).

5. The video data acquisition logging cable according to claim 4, wherein the plurality of conducting wires (2) are arranged in a staggered manner with the plurality of arc-shaped elastic rods (33), and one side of each arc-shaped elastic rod (33) far away from the elastic tube (31) is arranged against the magnetic insulating layer (13).

6. A video data acquisition logging cable according to claim 2, wherein said armouring layer (4) is formed by a plurality of wire-wrap corrosion protection layers (11).

7. The video data acquisition logging cable according to claim 6, wherein the sheath (5) comprises an anti-abrasion tube (51), the anti-abrasion tube (51) is sleeved outside the armor layer (4), and outer side walls of the anti-abrasion tube (51) are provided with outer leaking strips (52), and a plurality of the outer leaking strips (52) are arranged around the armor layer (4).

8. The video data acquisition logging cable of claim 7, wherein the wear tube (51) is bonded to the armor layer (4) by an adhesive.

9. The video data acquisition logging cable of claim 4 wherein the filler, the first filler (22) and the second filler (32) are all elastomeric plastic.

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