CN109931009A - Suspension segmentation load-bearing is segmented grafting power supply system in oil pipe - Google Patents
Suspension segmentation load-bearing is segmented grafting power supply system in oil pipe Download PDFInfo
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- CN109931009A CN109931009A CN201910248264.1A CN201910248264A CN109931009A CN 109931009 A CN109931009 A CN 109931009A CN 201910248264 A CN201910248264 A CN 201910248264A CN 109931009 A CN109931009 A CN 109931009A
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- cable
- oil pipe
- protective layer
- power supply
- segmented
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- 230000011218 segmentation Effects 0.000 title claims abstract description 34
- 239000000725 suspension Substances 0.000 title claims abstract description 18
- 239000011241 protective layer Substances 0.000 claims abstract description 38
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 49
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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- Gas Or Oil Filled Cable Accessories (AREA)
Abstract
The present invention provides a kind of interior suspension segmentation load-bearing segmentation grafting power supply system of oil pipe, belongs to technical field of oil extraction equipment.The system includes the sequentially connected cable segmentation plug assembly of several segments head and the tail；Every section of cable segmentation plug assembly includes oil pipe, the cable armouring protective layer being arranged in oil pipe, the cable being arranged in inside cable armouring protective layer, the cable centering device being arranged at tubing coupling；Described cable one end connects socket, cable other end connection plug；Interior note insulating oil between the cable armouring protective layer and cable；The cable centering device includes two concentric outer toroids and interior annular, several connecting rods that circumference is divided equally are arranged between outer toroid and interior annular.Oil pipe and cable are combined together by the present invention, and cable is segmented in oil pipe and goes into the well, and realize grafting in cable shaft upper tube, complete power supply in down-hole oil tube, and not cracky when making production operation under cable shaft improves the service life of downhole cable.
Description
Technical field
The invention belongs to technical field of oil extraction equipment, and in particular to a kind of interior suspension segmentation load-bearing segmentation grafting power supply of oil pipe
System.
Background technique
Present industry universal form is to be hung over outside oil pipe outside cable, and when operation first sets what cable and underground needs were powered
Cable, is then bundled in outside oil pipe, i.e., plug-in cable by standby connection.The cable hung over outside oil pipe outside is blocked with clamp, is made
Cable extends under oil well in company with one section of oil pipe, one section, so that cable is transferred to designated depth according to oil recovery demand.
Existing common practice main problem is cable failure, the service life is short and normal go wrong of insulation leads to cable breakdown.Electricity
It is hung over outside oil pipe outside cable, when going into the well, cable is placed in the annulus space between oil pipe and casing, this narrow space, cable was gone into the well
Journey is led to frequent breakage by external force is larger, and cable service life substantially reduces；Due to the demand of workover treatment, cable is needed repeatedly
The external force for removing experience is unpredictable so that current art is gone into the well cable do not have risen repeatedly with oil pipe, lower ability, increase significantly
Cost for oil production.
Summary of the invention
The purpose of the present invention is to solve existing plug-in cables to be reduced cable service life, cable by external force cracky
Without risen repeatedly with oil pipe, under ability, and cable bears self-weight tension problems of too, and provides suspension point in a kind of oil pipe
Duan Chengchong is segmented grafting power supply system.
The present invention provides a kind of interior suspension segmentation load-bearing segmentation grafting power supply system of oil pipe, which includes several segments head and the tail
Sequentially connected cable is segmented plug assembly；
Every section of cable segmentation plug assembly includes oil pipe, the cable armouring protective layer being arranged in oil pipe, setting
Cable inside cable armouring protective layer, the cable centering device being arranged at tubing coupling；
Described cable one end connects socket, cable other end connection plug；
Interior note insulating oil between the cable armouring protective layer and cable；
The cable centering device includes two concentric outer toroids and interior annular, is arranged between outer toroid and interior annular
Several connecting rods that circumference is divided equally.
Preferably, the cable centering device is integrally formed, and material is steel.
Preferably, the setting of described cable armouring protective layer one end seals outer end of thread, and other end setting seals interior end of thread,
End of thread matches in sealing outer end of thread and sealing.
Preferably, the oil pipe, cable armouring protective layer and cable coaxial arrangement.
Preferably, the connecting rod is 3.
Preferably, the cable two ends, cable armouring protective layer two ends and oil pipe two ends misplace respectively sets
It sets.
Preferably, the cable head, cable armouring protective layer head end and oil pipe head end successively misplace from top to bottom
Setting, oil pipe tail end, cable tail end and cable armouring protective layer tail end successively shift to install from top to bottom.
Preferably, the cable armouring protective layer is made of aluminum plastic composite pipe.
Beneficial effects of the present invention
The present invention provides suspension segmentation load-bearing segmentation grafting power supply system and the prior art in a kind of oil pipe and compares, this
The plug-in power supply of existing downhole cable is switched to power supply built in oil pipe by invention, changes the plug-in cable of general oil pipe in the prior art
Traditional work form, oil pipe and cable are combined together, cable is segmented in oil pipe and goes into the well, realize cable shaft upper tube interpolation
It connecing, completes power supply in down-hole oil tube, not cracky when making production operation under cable shaft improves the service life of downhole cable,
It is equal to downhole cable service life with land cable service life；The present invention is segmented load-bearing, solution for built in the segmentation of cable oil pipe
Current art cable of having determined bears self-weight tension problems of too；And when repairing operation, cable can be removed repeatedly simultaneously
It can carry out segmentation maintenance.
Power supply system structure of the invention is simple, easy to connect, safe and reliable, has wide range of applications, and can be nothing
Other undergrounds such as bar lifting equipment oil-submersible centrifugal pump, submersible motor screw pump, oil immersion line motor plunger pump need setting for power
It is standby that power supply is provided, it is suitble to shallow well, middle-deep well, ultradeep well, inclined shaft total head underground power supply used.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that suspension segmentation load-bearing is segmented grafting power supply system in a kind of oil pipe of the present invention；
Fig. 2 is the structure that suspension segmentation load-bearing is segmented cable centering device in grafting power supply system in a kind of oil pipe of the present invention
Schematic diagram.
In figure, 1, socket, 2, the outer end of thread of sealing, 3, cable centering device, 3-1, outer toroid, 3-2, interior annular, 3-3, company
Extension bar, 4, tubing coupling, 5, cable, 6, cable armouring protective layer, 7, oil pipe, 8, insulating oil, 9, plug, 10, the interior end of thread of sealing.
Specific embodiment
The present invention provides a kind of interior suspension segmentation load-bearing segmentation grafting power supply system of oil pipe, as shown in Figure 1, the system includes
The sequentially connected cable of several segments head and the tail is segmented plug assembly；The cable segmentation plug assembly of the first section connects in well-surface part
External power supply power supply is connect, the cable segmentation plug assembly of latter end connect with the equipment powered is needed, realizes by the power supply system
Continuous power supply to the equipment；
Every section of cable segmentation plug assembly structure is identical, including oil pipe 7, the cable armouring being arranged in oil pipe 7
Protective layer 6, the cable 5 being arranged in inside cable armouring protective layer 6, the cable centering device 3 being arranged at tubing coupling 4；Institute
Oil pipe 7, cable armouring protective layer 6 and the cable 5 stated are coaxially disposed；
Described 5 one end of cable connects socket 1,5 other end connection plug 9 of cable, which is by the way that the preceding paragraph is electric
The socket 9 that cable is segmented in the plug 1 in plug assembly and next section of cable segmentation plug assembly connects, and realizes that two end cables are inserted
It connects；
Interior note insulating oil 8 between the cable armouring protective layer 6 and cable 5, the insulating oil 8 are heavy oil, effect
It is to provide insulation and arc quenching protection for cable 5；
The cable centering device 3 is integrally formed, and material is steel, as shown in Fig. 2, including two concentric outer circles
Several connecting rods 3-3 that circumference is divided equally is arranged in ring 3-1 and interior annular 3-2 between outer toroid 3-1 and interior annular 3-2, described
The number of connecting rod 3-3 is unlimited, and preferably 3, effect is fixed load-bearing while reducing well liquid uplink resistance；In the oil pipe
Diameter < outer toroid outer diameter≤oil pipe outer diameter, the fixed cable centering device of outer toroid 3-1 itself, interior annular 3-2 pass through fixed cable
Armored protective layer 6 plays load-bearing and centralizing function to righting plug 9 and socket 1.
The setting of 6 one end of cable armouring protective layer described in present embodiment seals outer end of thread 2, other end setting sealing internal buckle
End 10 seals outer end of thread 2 and seals interior end of thread 10 and weld respectively with cable armouring protective layer 6, and is equipped with high temperature resistant in weld
Rubber protective ring is that end of thread 10 is inserted into outside next section of sealing and connects in end of thread 2 in the sealing by the preceding paragraph in connection, real
Now to the seal protection of socket 1 and plug 9.
Oil pipe 7 in every section of cable segmentation plug assembly described in present embodiment is connected by tubing coupling 4.
5 two ends of cable, 6 two ends of cable armouring protective layer described in present embodiment and 7 two ends of oil pipe are wrong respectively
Position setting, specially cable head, cable armouring protective layer head end and oil pipe head end successively shift to install from top to bottom, oil pipe tail
End, cable tail end and cable armouring protective layer tail end successively shift to install from top to bottom.
Cable armouring protective layer 6 described in present embodiment is for preventing operation damage cable, preventing well liquid corrosion electricity
The material of cable, the cable armouring protective layer 6 is not particularly limited, and can be played a protective role to cable, preferably by plastic-aluminum
Multiple tube is made, and source is commercially available.
A kind of interior hang of oil pipe described in present embodiment is segmented load-bearing segmentation grafting power supply system in lower well operations,
Plug 9 is completed on well to be inserted on socket 1, guarantees that power supply connection is reliable, then cable 5 is placed in armor protective layer 6, is filled out simultaneously
Insulating oil 8 is filled, then armor protection pipe is separately connected at the both ends of cable armouring protective layer 6 and is tightly connected connector 2 and armor guarantor
Pillar seals butt joint 10, then armor protective layer 6 is placed on oil pipe by the insulated enclosure after protecting plug 9 and socket 1 to connect
In 7, the interior annular 3-2 in cable centering device 3 is passed through into armor protective layer 6 and is mounted at tubing coupling 4, to guarantee cable 5
It is fixed on design position and undertakes the self weight of this section of cable.
Claims (8)
1. suspension segmentation load-bearing is segmented grafting power supply system in a kind of oil pipe, which is characterized in that the system includes several segments head and the tail
Sequentially connected cable is segmented plug assembly；
Every section of cable segmentation plug assembly includes oil pipe, the cable armouring protective layer being arranged in oil pipe, is arranged in electricity
Cable inside cable armored protective layer, the cable centering device being arranged at tubing coupling；
Described cable one end connects socket, cable other end connection plug；
Interior note insulating oil between the cable armouring protective layer and cable；
The cable centering device includes two concentric outer toroids and interior annular, and circumference is arranged between outer toroid and interior annular
Several connecting rods respectively.
2. suspension segmentation load-bearing is segmented grafting power supply system in a kind of oil pipe according to claim 1, which is characterized in that institute
The cable centering device stated is integrally formed, and material is steel.
3. suspension segmentation load-bearing is segmented grafting power supply system in a kind of oil pipe according to claim 1, which is characterized in that institute
The cable armouring protective layer one end setting stated seals outer end of thread, and other end setting seals interior end of thread, seals in outer end of thread and sealing
End of thread matches.
4. suspension segmentation load-bearing is segmented grafting power supply system in a kind of oil pipe according to claim 1, which is characterized in that institute
Oil pipe, cable armouring protective layer and the cable coaxial arrangement stated.
5. suspension segmentation load-bearing is segmented grafting power supply system in a kind of oil pipe according to claim 1, which is characterized in that institute
The connecting rod stated is 3.
6. suspension segmentation load-bearing is segmented grafting power supply system in a kind of oil pipe according to claim 1, which is characterized in that institute
Cable two ends, cable armouring protective layer two ends and the oil pipe two ends stated shift to install respectively.
7. suspension segmentation load-bearing is segmented grafting power supply system in a kind of oil pipe according to claim 6, which is characterized in that institute
Cable head, cable armouring protective layer head end and the oil pipe head end stated successively shift to install from top to bottom, oil pipe tail end, cable tail
End and cable armouring protective layer tail end successively shift to install from top to bottom.
8. suspension segmentation load-bearing is segmented grafting power supply system in a kind of oil pipe according to claim 1, which is characterized in that institute
The cable armouring protective layer stated is made of aluminum plastic composite pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910248264.1A CN109931009A (en) | 2019-03-29 | 2019-03-29 | Suspension segmentation load-bearing is segmented grafting power supply system in oil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910248264.1A CN109931009A (en) | 2019-03-29 | 2019-03-29 | Suspension segmentation load-bearing is segmented grafting power supply system in oil pipe |
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| CN109931009A true CN109931009A (en) | 2019-06-25 |
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| CN201910248264.1A Pending CN109931009A (en) | 2019-03-29 | 2019-03-29 | Suspension segmentation load-bearing is segmented grafting power supply system in oil pipe |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379551A (en) * | 2019-07-12 | 2019-10-25 | 曹祖峰 | A kind of large-sized cable line |
| CN111878069A (en) * | 2020-08-04 | 2020-11-03 | 华信唐山石油装备有限公司 | Composite continuous pipe cable oil-water well casing leakage finding system and method |
| CN112406149A (en) * | 2020-10-27 | 2021-02-26 | 南通市华业石油机械有限公司 | Preparation method of lining oil pipe capable of transmitting signals |
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| CN2145858Y (en) * | 1993-02-22 | 1993-11-10 | 大港石油管理局石油机械厂 | Electrothermal pumping unit |
| CN101055982A (en) * | 2007-03-16 | 2007-10-17 | 大庆油田有限责任公司 | A cable connection method and connection device for submersible electric pump well oil pipe |
| CN102661271A (en) * | 2012-05-16 | 2012-09-12 | 王子贵 | Rodless pump for single-core oil-submersible cable linear motor |
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| CN209742806U (en) * | 2019-03-29 | 2019-12-06 | 中油智科(吉林)技术装备有限公司 | Oil pipe internal suspension sectional bearing and sectional plug-in power supply system |
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2019
- 2019-03-29 CN CN201910248264.1A patent/CN109931009A/en active Pending
Patent Citations (9)
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|---|---|---|---|---|
| CN2145858Y (en) * | 1993-02-22 | 1993-11-10 | 大港石油管理局石油机械厂 | Electrothermal pumping unit |
| CN101055982A (en) * | 2007-03-16 | 2007-10-17 | 大庆油田有限责任公司 | A cable connection method and connection device for submersible electric pump well oil pipe |
| CN102661271A (en) * | 2012-05-16 | 2012-09-12 | 王子贵 | Rodless pump for single-core oil-submersible cable linear motor |
| US20180209247A1 (en) * | 2014-04-17 | 2018-07-26 | Petrospec Engineering Ltd. | Method and apparatus for supporting cables within coil tubing |
| CN105386732A (en) * | 2015-12-08 | 2016-03-09 | 中国石油天然气股份有限公司 | Tool for downhole hot water circulation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379551A (en) * | 2019-07-12 | 2019-10-25 | 曹祖峰 | A kind of large-sized cable line |
| CN111878069A (en) * | 2020-08-04 | 2020-11-03 | 华信唐山石油装备有限公司 | Composite continuous pipe cable oil-water well casing leakage finding system and method |
| CN112406149A (en) * | 2020-10-27 | 2021-02-26 | 南通市华业石油机械有限公司 | Preparation method of lining oil pipe capable of transmitting signals |
| CN112406149B (en) * | 2020-10-27 | 2023-10-31 | 南通市华业石油机械有限公司 | Preparation method of lining oil pipe capable of transmitting signals |
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