CN205645314U - Preset cable continuous composite pipe - Google Patents
Preset cable continuous composite pipe Download PDFInfo
- Publication number
- CN205645314U CN205645314U CN201620308556.1U CN201620308556U CN205645314U CN 205645314 U CN205645314 U CN 205645314U CN 201620308556 U CN201620308556 U CN 201620308556U CN 205645314 U CN205645314 U CN 205645314U
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- Prior art keywords
- cable
- layer
- steel wire
- protective layer
- preset
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- 239000002131 composite material Substances 0.000 title claims description 18
- 239000010410 layer Substances 0.000 claims abstract description 53
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 239000000463 material Substances 0.000 claims abstract description 21
- 239000011241 protective layer Substances 0.000 claims abstract description 18
- 239000003365 glass fiber Substances 0.000 claims abstract description 5
- 229920001971 elastomer Polymers 0.000 claims description 7
- 239000005060 rubber Substances 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 6
- 229920000573 polyethylene Polymers 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- -1 polyethylene Polymers 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract description 28
- 238000011084 recovery Methods 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000010276 construction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 abstract description 3
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract 4
- 229920000181 Ethylene propylene rubber Polymers 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 229920002521 macromolecule Polymers 0.000 description 5
- 229910052755 nonmetal Inorganic materials 0.000 description 5
- 239000004677 Nylon Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003129 oil well Substances 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 229920003020 cross-linked polyethylene Polymers 0.000 description 1
- 239000004703 cross-linked polyethylene Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Ropes Or Cables (AREA)
Abstract
The utility model belongs to the technical field of mechanical oil recovery, specifically provide a preset cable continuous compound pipe, its characterized in that: the cable comprises a protective layer, a reinforcing layer, a tensile layer, a cable and a steel wire rope; the protective layer, the reinforcing layer and the tensile layer are sequentially arranged from outside to inside, the steel wire ropes and the cables are distributed on the outer side of the reinforcing layer and are positioned in the protective layer, the number of the steel wire ropes and the number of the cables are at least 3 or more than 3, and the steel wire ropes and the cables are uniformly distributed at intervals; the protective layer is made of ethylene propylene rubber; the reinforcing layer is made of glass fiber; the tensile layer is made of ultra-high molecular weight polyethylene material, and the molecular weight of the tensile layer is 200-500 ten thousand. The utility model discloses an use the non-metallic pipe as liquid input channel to embedded preset cable in the pipe wall, thereby reduce the construction work volume by a wide margin, reduce constructor intensity of labour, improve the anticorrosive ability of tubular column, prolong normal production time, simplify the production tubular column structure.
Description
Technical field
This utility model belongs to technical field of mechanical oil extraction, is specifically related to a kind of preset cable continuous composite pipe.
Background technology
It is presently used for downhole oil extraction device to be mainly by metal oil conduit as passage, liquid is delivered to ground, but, needing single connection during metal oil conduit operation, construction operation amount is relatively big, and personnel's operation intensity is big, and construction period is longer；Metal oil conduit is vulnerable to the corrosiveness of down-hole liquid when underground work simultaneously, and therefore the use time can shorten.
Domestic some flexible composite pipe patents that disclose at present can overcome the above-mentioned deficiency of metal tube, as Chinese patent CN202176838U discloses a kind of petroleum gas industrial nonmetal flexible composite high pressure conveyer pipe, including nylon core, nylon core outer wall is coated with steel wire winding enhancement layer and overcoat, is provided with and is folded, by pros-and-cons type, the telescoping tube that steel plate occlusion rolls in described nylon core.This nonmetal flexible composite high pressure conveyer pipe is used for surface gathering and transferring, and its internal pressure resistance ability is preferable, but can not bear excessive pulling force, it is impossible to use in down-hole.
Chinese patent CN102889437A discloses a kind of flexible compound oil pipe, including tube layer in the macromolecule of pumped (conveying) medium, it is arranged at the macromolecule external tube layer outside tube layer in described macromolecule, it is arranged in described macromolecule on tube layer outer wall for resisting intrinsic pressure resistance to compression layer, and is arranged on the inwall of described macromolecule external tube layer for resisting the tensile layer of external tensile force.This flexible compound oil pipe can be used for down-hole, and this flexible compound oil pipe can be with Continuous maching, its length is not limited by processing, it is to avoid interconnective operation between many flexible compound oil pipe, but and its range of application undeclared and use ability, conventional pumping unit produce can not normally use.
Chinese patent CN202531035U discloses a kind of flexible compound oil pipe water injection string, water injection well equipment is threaded connection this tubing string lifting sub, lifting sub lower end is threaded connection adapter, upper adapter lower end connects flexible compound oil pipe by anti-decylization and outer locking device, flexible compound oil pipe lower end connects lower adapter by anti-decylization and outer locking device, lower adapter lower end is threaded adds oil pipe, adds oil pipe lower end and connects beveled tip.The flexible compound oil pipe of this tubing string has stronger antiseptic property, it is possible to the problem preferably solving the corrosion of reinjection well metal oil conduit, extends tubing string service life, but is not directed to oil well production string.
It addition, for needing cable to provide the Rodless oil extraction device of liquid lifting power during Downhole Construction for Set under a well in straight well, directional well, horizontal well, need cable with under oil pipe synchronization onwards, add oil well operation flow process.
The flexible composite pipe of prior art is concentrated mainly on surface gathering and transferring, relates to the less of oil well application, and is all not directed to embedded preset cable.
Summary of the invention
The purpose of this utility model is to overcome existing flexible composite pipe to cannot be used for downhole oil extraction device, and can not solve the problem that cable disposes.
To this end, this utility model provides a kind of preset cable continuous composite pipe, it is characterised in that: include protective layer, enhancement Layer, tensile layer, cable, steel wire rope；Described protective layer, enhancement Layer and tensile layer set gradually from outside to inside, and described steel wire rope and cable are distributed in outside enhancement Layer, and are positioned at protective layer, and described steel wire rope and cable are at least 3 strands or more than 3 strands, and steel wire rope and cable separation are uniformly distributed；Described protective layer material is EP rubbers；Described enhancement Layer material is glass fiber；Described tensile layer is superhigh molecular weight polyethylene material, and its molecular weight is 2,000,000～5,000,000.
Described steel wire rope and cable are all close to enhancement Layer side and are arranged.
Described enhancement Layer is screen net structure.
Described steel wire rope is 3 strands, and cable is 6 strands, is provided with 2 strands of cables in the middle of two adjacent steel wire ropes.
The conductor wire core of described cable is copper core, is coated with insulating barrier and overcoat the most from inside to outside.
Described insulating barrier material is plastics or PVC, and overcoat material is rubber.
The beneficial effects of the utility model:
(1) preset cable compound pipe of the present utility model has the features such as the pliability of nonmetal flexible pipe is good, corrosion resistance is strong, heat conductivity is low, can effectively solve under existing well the corrosion-prone problem of metal oil conduit in extracting device of oil.
(2) preset cable compound pipe of the present utility model can not only connect processing and can guarantee that tension, internal pressure strength requirement; and the mode that this preset cable compound pipe uses preset cable makes the mechanical protection performance of cable and insulating properties the most effectively be promoted, and extends effective tubing string underground work life-span.
(3) preset cable compound pipe of the present utility model is applied to extracting device of oil and compares with routine work mode, operating cost is low, working performance is high, No leakage, use casing programme scope are wide, particularly coordinate current Rodless oil extraction technology, it is possible to reduce oil recovery, operating cost further.
Below with reference to accompanying drawing, this utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model preset cable continuous composite pipe.
Fig. 2 is this utility model structural representation for extracting device of oil
Description of reference numerals: 1, protective layer；2, enhancement Layer；3, tensile layer；4, cable；5, steel wire rope；6, power control cabinet；7, well mouth hanger；8, preset cable compound pipe；9, adapter；10, rodless pump oil recovery unit.
Detailed description of the invention
Embodiment 1:
In order to overcome metal oil conduit in existing extracting device of oil perishable; service life is short; and existing nonmetal flexible multiple tube cannot be used for downhole oil extraction device; and the problem that cable disposes can not be solved, present embodiments provide a kind of preset cable continuous composite pipe as shown in Figure 1, including protective layer 1; enhancement Layer 2; tensile layer 3, cable 4, steel wire rope 5；Described protective layer 1, enhancement Layer 2 and tensile layer 3 set gradually from outside to inside; described steel wire rope 5 and cable 4 are distributed in outside enhancement Layer 2; and it being positioned at protective layer 1, described steel wire rope 5 and at least 3 strands or more than 3 strands of cable 4, steel wire rope 5 and cable 4 are spaced and are uniformly distributed；Described protective layer 1 material is EP rubbers；Described enhancement Layer 2 material is glass fiber；Described tensile layer 3 is superhigh molecular weight polyethylene material, and its molecular weight is 2,000,000～5,000,000.
Described protective layer 1 material is EP rubbers, is one layer of guard shield of preset cable compound pipe outermost, protects pipe inside all the components comprehensively, have good resistance to ag(e)ing, corrosion resistance and insulating properties.
Described enhancement Layer 2 material is glass fiber, forms screen net structure through establishment continuously, has the highest hot strength and tear resistance, can increase substantially the internal pressure strength of tube wall, and compressive resistance can be adjusted as desired by number of braided strand, typically up to 20Mpa；Can be used for the injury preventing mechanical damage that cable and multiple tube are produced further.
Described tensile layer 3 is superhigh molecular weight polyethylene material；The molecular weight of this ultra-high molecular weight polyethylene is 2,000,000～5,000,000.Tensile layer 3 is as medium transfer layer, through extruding one-shot forming continuously.Polyethylene is the most common plastic resin, but high temperature can not be born, mechanical strength is not enough, and oil recovery oil pipe needs good heat resistance, anti-wear performance and proof stress performance, therefore, common polythene obviously can not meet, and ultra-high molecular weight polyethylene substantially increases the thermal deformation behavior of crosslinked polyethylene, anti-wear performance and chemical-resistance, heatproof is up to 90 DEG C, when internal diameter is 50mm, tensile strength is up to 15t, elongation at break is 7.6%, and smooth surface, coefficient of friction is little, it is resistant to the corrosion of hundreds of chemicals, common acid, alkali, salt, superelevation material is not the most corroded by organic solvent.Under natural lighting, its aging life-span is more than 50 years；Not expanding in water, water absorption rate is only the 1% of nylon, meets and uses requirement.
The cable compound pipe of this utility model uses the mode of preset cable that the mechanical protection performance of cable and insulating properties are the most effectively promoted, and extends effective tubing string underground work life-span.
Embodiment 2:
On the basis of embodiment 1, described steel wire rope 5 and cable 4 are all close to enhancement Layer 2 side and are arranged.Described enhancement Layer 2 is screen net structure.Described steel wire rope 5 is 3 strands, and cable 4 is 6 strands, is provided with 2 strands of cables 4 in the middle of two adjacent steel wire ropes 5.The conductor wire core of described cable 4 is copper core, is coated with insulating barrier and overcoat the most from inside to outside.Described insulating barrier material is plastics or PVC, and overcoat material is rubber.
Owing to preset cable compound pipe in use vertical tube runs, and hung oil recovery unit, this just requires in use there is certain tensile strength, carry itself, pumped (conveying) medium and the weight of down-hole oil production unit, although tensile layer 3, the material itself that enhancement Layer 2 uses has tensile property, but also it is not enough to undertake load, and bigger deflection can be produced, so, enhancement Layer 2 outer periphery is uniformly distributed and is designed with 6 strand steel wire ropes 5 and independently undertakes load, improve intensity further, multiple tube is made to carry bigger pulling force, and prevent the vertical torque produced on multiple tube.
It is demonstrated experimentally that the preset cable compound pipe being made up of above composite, maximum gauge can reach the needs of 50mm, it is possible to meets 3000m well depth requirement, and internal pressure strength reaches 30MPa, and tensile strength reaches 300KN, heatproof 90 DEG C.
This preset cable compound pipe that this utility model provides has the features such as the pliability of nonmetal flexible pipe is good, corrosion resistance is strong, heat conductivity is low, can effectively solve under existing well the corrosion-prone problem of metal oil conduit in extracting device of oil；It addition, this preset cable compound pipe can not only connect processing, and can guarantee that tension, internal pressure strength requirement.
Embodiment 3:
On the basis of embodiment 2, the example of the Rodless oil extraction device present embodiments providing the application preset cable compound pipe of this invention further illustrates use of the present utility model.
As shown in Figure 2, well mouth hanger 7 bottom is linked together by the work processing of sulfuration with preset cable compound pipe 8 of the present utility model, its bonding strength reaches to hang the weight into the preset cable compound pipe of well 8 and the weight of well tool equipment, simultaneous with more than 2 times safety coefficients；The method processing that preset cable compound pipe 8 lower end of the present utility model and adapter 9 use sulfuration links together, adapter 9 bottom is machined with pipe screw thread, with rodless pump oil recovery unit 10(downhole electric instrument) it is connected, power control cabinet 6 is connected with cable 4 top connection in preset cable compound pipe 8 of the present utility model by power cable, and cable 4 lower contact electrically connects with rodless pump oil recovery unit 10.
6 external impetus power supplys of power control cabinet pass to the cable 4 in preset cable compound pipe 8, cable 4 passes to rodless pump oil recovery unit 10 electric energy again, rodless pump oil recovery unit 10 utilizes electric power liquid lifting to be come up, and is transported to ground by preset cable compound pipe 8.
The preset cable compound pipe of this utility model is applied to extracting device of oil and compares with routine work mode, operating cost is low, working performance is high, No leakage, use casing programme scope are wide, particularly coordinate current Rodless oil extraction technology, it is possible to reduce oil recovery, operating cost further.
Exemplified as above is only to illustration of the present utility model, is not intended that the restriction to protection domain of the present utility model, within the every and same or analogous design of this utility model belongs to protection domain of the present utility model.
Claims (6)
1. a preset cable continuous composite pipe, it is characterised in that: include protective layer (1), enhancement Layer (2), tensile layer (3), cable (4), steel wire rope (5)；Described protective layer (1), enhancement Layer (2) and tensile layer (3) set gradually from outside to inside; described steel wire rope (5) and cable (4) are distributed in enhancement Layer (2) outside; and it is positioned at protective layer (1); at least 3 strands or more than 3 strands of described steel wire rope (5) and cable (4), steel wire rope (5) and cable (4) interval are uniformly distributed；Described protective layer (1) material is EP rubbers；Described enhancement Layer (2) material is glass fiber；Described tensile layer (3) is superhigh molecular weight polyethylene material, and its molecular weight is 2,000,000～5,000,000.
Preset cable continuous composite pipe the most as claimed in claim 1, it is characterised in that: described steel wire rope (5) and cable (4) are all close to enhancement Layer (2) side and are arranged.
Preset cable continuous composite pipe the most as claimed in claim 1, it is characterised in that: described enhancement Layer (2) is screen net structure.
Preset cable continuous composite pipe the most as claimed in claim 1, it is characterised in that: described steel wire rope (5) is 3 strands, and cable (4) is 6 strands, is provided with 2 bursts of cables (4) in the middle of two adjacent steel wire ropes (5).
Preset cable continuous composite pipe the most as claimed in claim 1, it is characterised in that: the conductor wire core of described cable (4) is copper core, is coated with insulating barrier and overcoat the most from inside to outside.
Preset cable continuous composite pipe the most as claimed in claim 5, it is characterised in that: described insulating barrier material is plastics or PVC, and overcoat material is rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620308556.1U CN205645314U (en) | 2016-04-14 | 2016-04-14 | Preset cable continuous composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620308556.1U CN205645314U (en) | 2016-04-14 | 2016-04-14 | Preset cable continuous composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205645314U true CN205645314U (en) | 2016-10-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620308556.1U Active CN205645314U (en) | 2016-04-14 | 2016-04-14 | Preset cable continuous composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205645314U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355187A (en) * | 2017-09-07 | 2017-11-17 | 浙江恒安泰石油工程有限责任公司 | Flexible compound coiled tubing and its manufacturing process are used under a kind of smart well |
| CN107507663A (en) * | 2017-09-30 | 2017-12-22 | 佛山市领卓科技有限公司 | A kind of multiple tube |
| CN107642642A (en) * | 2017-09-30 | 2018-01-30 | 佛山市领卓科技有限公司 | A kind of strength is managed |
| CN111622684A (en) * | 2020-05-19 | 2020-09-04 | 中国石油天然气股份有限公司 | Nonmetal composite oil pipe for continuously coating cable |
-
2016
- 2016-04-14 CN CN201620308556.1U patent/CN205645314U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107355187A (en) * | 2017-09-07 | 2017-11-17 | 浙江恒安泰石油工程有限责任公司 | Flexible compound coiled tubing and its manufacturing process are used under a kind of smart well |
| CN107507663A (en) * | 2017-09-30 | 2017-12-22 | 佛山市领卓科技有限公司 | A kind of multiple tube |
| CN107642642A (en) * | 2017-09-30 | 2018-01-30 | 佛山市领卓科技有限公司 | A kind of strength is managed |
| CN111622684A (en) * | 2020-05-19 | 2020-09-04 | 中国石油天然气股份有限公司 | Nonmetal composite oil pipe for continuously coating cable |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |