CN106761455A - The self power generation of preset cable shaft underground and cable butting technique - Google Patents

The self power generation of preset cable shaft underground and cable butting technique Download PDF

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Publication number
CN106761455A
CN106761455A CN201611128713.1A CN201611128713A CN106761455A CN 106761455 A CN106761455 A CN 106761455A CN 201611128713 A CN201611128713 A CN 201611128713A CN 106761455 A CN106761455 A CN 106761455A
Authority
CN
China
Prior art keywords
cable
docking facilities
downhole
oil pipe
parent
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201611128713.1A
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Chinese (zh)
Other versions
CN106761455B (en
Inventor
杨野
王凤山
祝绍功
刘崇江
刘传
蔡萌
朱振坤
宋兴良
赵明鑫
陈静
曹长鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daqing Oilfield Co Ltd
China Petroleum and Natural Gas Co Ltd
Original Assignee
Daqing Oilfield Co Ltd
China Petroleum and Natural Gas Co Ltd
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Application filed by Daqing Oilfield Co Ltd, China Petroleum and Natural Gas Co Ltd filed Critical Daqing Oilfield Co Ltd
Priority to CN201611128713.1A priority Critical patent/CN106761455B/en
Publication of CN106761455A publication Critical patent/CN106761455A/en
Application granted granted Critical
Publication of CN106761455B publication Critical patent/CN106761455B/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/023Arrangements for connecting cables or wirelines to downhole devices
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02Couplings; joints
    • E21B17/028Electrical or electro-magnetic connections
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B17/00Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/20Flexible or articulated drilling pipes, e.g. flexible or articulated rods, pipes or cables
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B41/00Equipment or details not covered by groups E21B15/00 - E21B40/00
    • E21B41/0085Adaptations of electric power generating means for use in boreholes
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • E21B43/20Displacing by water
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00Survey of boreholes or wells
    • E21B47/06Measuring temperature or pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Geophysics (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

The present invention relates to oil extraction in oil field field of engineering technology, belong to a kind of preset cable shaft underground self power generation and cable butting technique;It solves preset cable shaft operation process need to be the problems such as card be away from outer binding cable, installation electric cable protector.The present invention is in intelligent watering device(3), cable-passing packer(4)With down-hole power managing device(6)Tool segment cable(2)Using oil pipe(9)Connect in addition, instantly after complete completion tubular column, by cable(2)Connection self-generating device(8)With downhole cable docking facilities male(7)Put into by well head, downhole cable docking facilities male(7)With downhole cable docking facilities parent(1)Insertion connection, realizes from well head to tool segment cable(2)All in oil pipe(9)Within;The advantages of present invention is with avoiding damaging the risk of cable during job execution, and ensuring the communication and power supply of downhole tool.

Description

The self power generation of preset cable shaft underground and cable butting technique
Technical field
The present invention relates to petroleum production engineering field, belong to the self power generation of preset cable shaft underground and cable butting technique.
Background technology
At present there is following shop problem in conventional preset cable injection allocation well operation process:Cable is fixed on outside oil pipe Wall protects cable, it is necessary to install electric cable protector in the position of every section of oil pipe connection, increased working procedure, increases work Amount;Cable is fixed on oil-pipe external wall, exists and collide with work progress cable, causes the risk of cable bad, while changing cable Need job execution again;Preset cable injection allocation well downhole intelligent injection well downhole flow regulator needs the electric power could to work, current wellhead of water injection well Non-transformer, it is impossible to which electric power is provided;Based on problem above, in order to reduce construction workload, improve preset cable injection allocation well technique into Power, has invented the self power generation of preset cable shaft underground and cable butting technique.
The content of the invention
Applied it is an object of the invention to provide fragile the causing of cable is tied up outside one kind preset cable injection allocation well work progress of solution The preset cable shaft underground self power generation of the low problem of work technique success rate and cable butting technique.
The present invention is realized by following device:It is by downhole cable docking facilities parent, cable, intelligent watering Device, cable-passing packer, ball seat, down-hole power managing device, downhole cable docking facilities male, underground self-generating device and oil Pipe is constituted;Wherein oil pipe lower end is connected with downhole cable docking facilities parent, downhole cable docking facilities parent by oil pipe and The cable of oil-pipe external wall is sequentially connected down-hole power managing device, multiple cable-passing packers, multiple intelligent watering devices and ball seat; Oil pipe inner cable is sequentially connected underground self-generating device and downhole cable docking facilities male;The technique is through the following steps that come Realize:
A, first successively by ball seat, multiple intelligent watering device, multiple cable-passing packers, down-hole power managing device, underground electricity Cable docking facilities parent is attached by oil pipe, and the cable of oil-pipe external wall is also by downhole cable docking facilities parent, underground electricity Source control device and intelligent watering device are connected, and are lowered into desired depth;
B, secondly suppressed from oil pipe, discharge cable-passing packer, then after detecting that cable-passing packer off-position is correct, cross cable Packer setting completion;
C, oil pipe inner cable are sequentially connected underground self-generating device and downhole cable docking facilities are public
Head, under enter oil pipe, after reaching projected depth downhole cable docking facilities male is complete with downhole cable docking facilities parent Into docking;
D, water filling work start, and injection water promotes the turbine rotation in the self-generating device of underground, rotor driven cutting magnetic line hair Electricity;Cable is connected after downhole cable docking facilities male is docked with downhole cable docking facilities parent, will using the cable of connection The electric energy that underground self-generating device sends is stored in being transferred to the battery pack of down-hole power managing device;
E, down-hole power managing device stabilization provide electric power for each interval intelligent watering device, and each interval intelligent watering device just can be with Water injection pressure monitoring, the flow monitoring of individual layer are carried out, and collection result is transferred to ground;
Flowmeter in f, down-hole power managing device can also be monitored to full well water injection rate.
Compared with the prior art the present invention has the following advantages that:
1), the self power generation of preset cable shaft underground and cable butting technique realize preset cable shaft from well head to tool segment cable oil Pipe is built-in, is powered and is led to by downhole cable docking facilities male and downhole cable docking facilities parent insertion docking mode Letter, technology stability is good, success rate is high;
2), due to cable docked in oil pipe above tool segment, eliminate cable it is external when every tubing coupling near will The step of installing electric cable protector, reduces the activity duration, reduces operating cost and cable and collides with damage risk, improve technique into Power;And change without operation again, only need to be by upper portable cable by downhole cable docking facilities male and downhole cable pair Connection device parent is separated, you can change whole section of card away from outer cable;
3), cable connection underground self-generating device, using inject water generate electricity, realize preset cable injection allocation well self-powered;
4), down-hole power managing device can carry out the monitoring of full well water injection rate.
Brief description of the drawings:Fig. 1 is structural representation after field operation construction of the present invention;Fig. 2 is field operation construction of the present invention Pre-structure schematic diagram;Fig. 3 is the structural representation of downhole cable docking facilities male 7;Fig. 4 is downhole cable docking facilities parent 1 structural representation;Fig. 5 is the structural representation of down-hole power managing device 6;Fig. 6 is that the structure of underground self-generating device 8 is shown It is intended to.
1- downhole cables docking facilities parent, 2- cables, 3- intelligent waterings device, 4- cable-passing packers, 5- balls in Fig. 1 Seat, 6- down-hole powers managing device, 7- downhole cable docking facilities male, 8- undergrounds self-generating device, 9- oil pipes.
1- downhole cables docking facilities parent in Fig. 2,2- cables, 3- intelligent watering devices, 4- cable-passing packers, 5- balls Seat, 6- down-hole power managing devices, 9- oil pipes
10- cables, 11- fishing heads, 12- weighted levers, 13- adapter sleeves, 14- contacts conductive sleeve, 15- seal assemblies, 16- in Fig. 3 Positioning head
17- top connections, 18- upper pressing caps, 19- upper joint sleeves, 20- docking facilities main body, 21 passageway bridges, 22- contacts in Fig. 4 Conductive sleeve, 23- lock balls, 24- bases, 25- lower joint sleeves, 26- springs, 27- lower contacts;
28- top connections, 29- upper joint sleeves, 30- flowmeters, 31- central tubes, 32- controls circuit, 33- housings, 34- master in Fig. 5 Body, 35- battery packs, 36- lower joint sleeves, 37- lower contacts;
38- wire rope sockets in Fig. 6,39- water inlets, 40- upper joint sleeves, 41- turbine blades, 42- delivery ports, 43- central shafts, 44- upper shells, 45- rotors, 46- stators, 47- lower houses, 48- control output circuits, 49- lower joint sleeves, 50- ends.
Specific embodiment:The invention will be further described below in conjunction with the accompanying drawings:The present invention be by following device come Realize:It is by downhole cable docking facilities parent 1, cable 2, intelligent watering device 3, cable-passing packer 4, ball seat 5, underground electricity Source control device 6, downhole cable docking facilities male 7, underground self-generating device 8 and oil pipe 9 are constituted;Wherein the lower end of oil pipe 9 with Downhole cable docking facilities parent 1 is connected, downhole cable docking facilities parent 1 by the cable 2 of oil pipe and oil-pipe external wall successively Connection down-hole power managing device 6, multiple cable-passing packers 4, multiple intelligent watering devices 3 and ball seat 5;Oil pipe inner cable 2 according to Secondary connection underground self-generating device 8 and downhole cable docking facilities male 7;Characterized in that, the technique through the following steps that Come what is realized:
A, first successively by ball seat 5, multiple intelligent watering device 3, multiple cable-passing packers 4, down-hole power managing device 6, well Lower cable butt joint device parent 1 is attached by oil pipe 9, and the cable 2 of oil-pipe external wall is also by downhole cable docking facilities parent 1st, down-hole power managing device 6 and intelligent watering device 3 are connected, and are lowered into desired depth;
B, secondly suppressed from oil pipe 9, discharge cable-passing packer 4, then after detecting that the off-position of cable-passing packer 4 is correct, mistake Cable packer 4 sets completion;
C, oil pipe inner cable 2 are sequentially connected underground self-generating device 8 and downhole cable docking facilities male 7, under enter oil pipe, arrive Downhole cable docking facilities male 7 completes to dock with downhole cable docking facilities parent 1 after up to projected depth;
D, water filling work start, and injection water promotes the turbine rotation in underground self-generating device 8, rotor driven cutting magnetic line hair Electricity;Cable is connected after downhole cable docking facilities male 7 is docked with downhole cable docking facilities parent 1, using the cable of connection The electric energy that underground self-generating device 8 sends is transferred in the battery pack of down-hole power managing device 6 and is stored;
What e, down-hole power managing device 6 were stablized is that each interval intelligent watering device 3 provides electric power, and each interval intelligent watering device 3 is just Water injection pressure monitoring, the flow monitoring of individual layer can be carried out, and collection result is transferred to ground;
Flowmeter in f, down-hole power managing device 6 can also be monitored to full well water injection rate.
Downhole cable docking facilities male 7 is by cable 10, fishing head 11, weighted lever 12, adapter sleeve 13, contact conductive sleeve 14th, seal assembly 15, positioning head 16 are constituted, and wherein cable 10 is connected with the end of fishing head 11, the upper end of weighted lever 12 with salvage First 11 screwed connection, the lower end of weighted lever 12 and the upper end screwed connection of adapter sleeve 13, the lower end of adapter sleeve 13 connects with the screw thread of positioning head 16 Connect, seal assembly 15 is stuck between adapter sleeve 13 and positioning head 16, contact conductive sleeve 14 is stuck in seal assembly 15;
Downhole cable docking facilities parent 1 is by top connection 17, upper pressing cap 18, upper joint sleeve 19, docking facilities main body 20, bridge-type Passage 21, contact conductive sleeve 22, lock ball 23, base 24, lower joint sleeve 25, spring 26, lower contact 27 are constituted, wherein upper joint sleeve 19 upper ends and the screwed connection of top connection 17, the lower end of upper joint sleeve 19 and the screwed connection of docking facilities main body 20, docking facilities main body 20 upper ends and the screwed connection of upper pressing cap 18, the lower end of docking facilities main body 20 and the screwed connection of base 24, contact conductive sleeve 22 are stuck in Between upper pressing cap 18 and base 24, the groove that base 24 is opened is put into lock ball 23 and spring 26, the upper end of lower joint sleeve 25 and docking facilities The screwed connection of main body 20, the lower end of lower joint sleeve 25 and the screwed connection of lower contact 27;
The draw-in groove of the positioning head 16 in downhole cable docking facilities male 7 locks 23 with the ball in downhole cable docking facilities parent 1 Mating connection
Down-hole power managing device 6 is by top connection 28, upper joint sleeve 29, flowmeter 30, central tube 31, control circuit 32, shell Body 33, main body 34, battery pack 35, lower joint sleeve 36, lower contact 37 are constituted, and wherein upper joint sleeve 29 connects with the screw thread of top connection 28 Connect, 30 sets of flowmeter and the screwed connection of central tube 31, the upper end of housing 33 is threadedly coupled with upper joint sleeve 29, the lower end of housing 33 and master The outside screw of body 34 is connected, and control circuit 32 is placed between the top of main body 34 and central tube 31, and battery pack 35 is threaded in master On body 34, the upper end of lower joint sleeve 36 is threadedly coupled with main body 34, and the lower end of lower joint sleeve 36 is threadedly coupled with lower contact 37.
Underground self-generating device 8 be by wire rope socket 38, water inlet 39, upper joint sleeve 40,
Turbine blade 41, delivery port 42, central shaft 43, upper shell 44, rotor 45, stator 46, lower house 47, control output circuit 48th, lower joint sleeve 49, end 50 are constituted;Wherein wire rope socket 38 is connected with upper joint sleeve 40, and turbine blade 41 is located by connecting On central shaft 43, upper joint sleeve 40 is provided with water inlet 39 and delivery port 42, and rotor 45 is connected with the bottom of central shaft 43, stator 46 Upper shell 44 is fixed on, control output circuit 48 is fixed on lower house 47, upper joint sleeve 40 is sealed with the screw thread of upper shell 44 and connected Connect, upper shell 44 is tightly connected with the screw thread of lower house 47, the sealing of lower house 47 and the screw thread of lower joint sleeve 49 is connected, end 50 and Lower joint sleeve 49 is connected.

Claims (1)

1. the self power generation of preset cable shaft underground and cable butting technique, the technique are realized by following device:It is by well Lower cable butt joint device parent(1), cable(2), intelligent watering device(3), cable-passing packer(4), ball seat(5), down-hole power Managing device(6), downhole cable docking facilities male(7), underground self-generating device(8)And oil pipe(9)Composition;Wherein oil pipe (9)Lower end and downhole cable docking facilities parent(1)It is connected, downhole cable docking facilities parent(1)Outside by oil pipe and oil pipe The cable of wall(2)It is sequentially connected down-hole power managing device(6), multiple cable-passing packers(4), multiple intelligent watering devices(3) And ball seat(5);Oil pipe inner cable(2)It is sequentially connected underground self-generating device(8)With downhole cable docking facilities male(7);Its It is characterised by, the technique is through the following steps that to realize:
A, first successively by ball seat(5), multiple intelligent watering devices(3), multiple cable-passing packers(4), down-hole power management dress Put(6), downhole cable docking facilities parent(1)By oil pipe(9)It is attached, the cable of oil-pipe external wall(2)Also by underground electricity Cable docking facilities parent(1), down-hole power managing device(6)With intelligent watering device(3)Connect, be lowered into desired depth;
B, secondly from oil pipe(9)Suppress, discharge cable-passing packer(4), then detect cable-passing packer(4)Off-position is correct Afterwards, cable-passing packer(4)Set completion;
C, oil pipe inner cable(2)It is sequentially connected underground self-generating device(8)With downhole cable docking facilities male(7), under enter oil Guan Zhong, reaches downhole cable docking facilities male after projected depth(7)With downhole cable docking facilities parent(1)Complete docking;
D, water filling work start, and injection water promotes underground self-generating device(8)In turbine rotation, rotor driven cutting magnetic line Generate electricity;Using downhole cable docking facilities male(7)With downhole cable docking facilities parent(1)The cable being docked and connected is by underground Self-generating device(8)The electric energy for sending sends down-hole power managing device to(6)Battery pack in store;
E, down-hole power managing device(6)Stabilization is each interval intelligent watering device(3)Electric power, each interval intelligent watering device are provided (3)Water injection pressure monitoring, the flow monitoring of individual layer are can be carried out, and collection result is transferred to ground;
F, down-hole power managing device(6)In flowmeter full well water injection rate can be also monitored.
CN201611128713.1A 2016-12-09 2016-12-09 The self power generation of preset cable shaft underground and cable butting technique Active CN106761455B (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109372480A (en) * 2018-05-23 2019-02-22 中国石油化工股份有限公司 A kind of movable down-hole electric generating apparatus of water injection well and method
CN109707334A (en) * 2019-01-21 2019-05-03 中国石油天然气股份有限公司 A kind of water injection well intelligently dispensed electric cable wellhead sealing device
CN110284877A (en) * 2019-05-25 2019-09-27 中国海洋石油集团有限公司 A kind of underground permanent setting type dynamic monitoring device and monitoring method
CN110644932A (en) * 2018-06-26 2020-01-03 中国石油天然气股份有限公司 Oil pipe structure and method for testing cable to enter well
CN111255386A (en) * 2020-01-15 2020-06-09 大庆黑帝庙稠油试采技术开发有限公司 Horizontal well segmented oil production process pipe column

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Publication number Priority date Publication date Assignee Title
CN109372480A (en) * 2018-05-23 2019-02-22 中国石油化工股份有限公司 A kind of movable down-hole electric generating apparatus of water injection well and method
CN110644932A (en) * 2018-06-26 2020-01-03 中国石油天然气股份有限公司 Oil pipe structure and method for testing cable to enter well
CN109707334A (en) * 2019-01-21 2019-05-03 中国石油天然气股份有限公司 A kind of water injection well intelligently dispensed electric cable wellhead sealing device
CN109707334B (en) * 2019-01-21 2023-09-26 中国石油天然气股份有限公司 Intelligent split injection cable wellhead sealing device for water injection well
CN110284877A (en) * 2019-05-25 2019-09-27 中国海洋石油集团有限公司 A kind of underground permanent setting type dynamic monitoring device and monitoring method
CN111255386A (en) * 2020-01-15 2020-06-09 大庆黑帝庙稠油试采技术开发有限公司 Horizontal well segmented oil production process pipe column

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