CN110485943A - A kind of oil well downhole cable wet type docking facilities - Google Patents

A kind of oil well downhole cable wet type docking facilities Download PDF

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Publication number
CN110485943A
CN110485943A CN201910634196.2A CN201910634196A CN110485943A CN 110485943 A CN110485943 A CN 110485943A CN 201910634196 A CN201910634196 A CN 201910634196A CN 110485943 A CN110485943 A CN 110485943A
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CN
China
Prior art keywords
wall
docking
cable
ring
main body
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Granted
Application number
CN201910634196.2A
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Chinese (zh)
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CN110485943B (en
Inventor
张凤辉
赵仲浩
杨万有
刘敏
张成富
邹明华
王胜
晁圣棋
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CNOOC Energy Technology and Services Ltd
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CNOOC Energy Technology and Services Ltd
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Priority to CN201910634196.2A priority Critical patent/CN110485943B/en
Publication of CN110485943A publication Critical patent/CN110485943A/en
Application granted granted Critical
Publication of CN110485943B publication Critical patent/CN110485943B/en
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    • 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
    • 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
    • E21B17/02Couplings; joints
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042Threaded
    • 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
    • E21B17/04Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/046Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
    • 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
    • E21B23/00Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/502Bases; Cases composed of different pieces
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5202Sealing means between parts of housing or between housing part and a wall, e.g. sealing rings
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5205Sealing means between cable and housing, e.g. grommet
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/46Bases; Cases
    • H01R13/52Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
    • H01R13/5219Sealing means between coupling parts, e.g. interfacial seal
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure

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  • 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)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

The invention discloses a kind of oil well downhole cable wet type docking facilities, including cable butting male connector and connector of giving up, when cable butting male connector imports inside the connector of giving up for setting well under tubing string carrying, upper insulation sleeve cuff makes the two form sealing on upper dead ring, lower insulation sleeve cuff makes the two form sealing on lower dead ring, and conductive connection is formed on conducting ring for conductive sleeve cuff so that upper data cable L1 is connected to lower data cable L2 realization;Lock ball with spring is inserted through at the docking seeker annular groove of the interstitial hole of lock ball seat, realizes docking locking;The limit gaily decorated basket, which is supported on, to be accepted on the gaily decorated basket.It is an advantage of the invention that downhole cable wet type docking facilities have repetition docking capacity, can maintain a long-term stability after successfully docking power supply with communicate, only cable butting male connector out and is safeguarded in pump detection and workover, is conducive to field operation.

Description

A kind of oil well downhole cable wet type docking facilities
Technical field
The present invention relates to oil field layered oil recovery field downhole tool more particularly to a kind of oil well downhole cable wet types Docking facilities.
Background technique
" the complete well of sleeve sand control occupies certain proportion to Bohai Bay Oil Partial Block producing well 7 at present, and this completion mode causes The common Y type electric pump separate-extraction tubing string in sea can not be implemented, and can not achieve separate zone production, can only adopt mode using common conjunction, however with Going deep into for oil field development, aqueous continuous rising, and without effective control sailor section.Cable controls formula electric pump separate-extraction technique as one New technique can solve 7, and " cased well separate zone production problem needs it is contemplated that tubular column structure limits using downhole cable Docking technique, that is, give up and realize that tubing string docks and is electrically connected using special docking facilities between separate-layer string and electric pump flow string It connects.This downhole cable docking technique is widely used in horizontal well the field of test technology, because considering application, usage mode And structure type, reference function can only be played.
Summary of the invention
Present invention aim to address the above-mentioned problems in the prior art, and to realize that tubing string is given up docking and wet type Electrical connection provides a kind of oil well downhole cable wet type docking facilities.
The technical scheme is that
A kind of oil well downhole cable wet type docking facilities, including cable butting male connector and connector of giving up;
The cable butting male connector includes tubing nipple, and the tubing nipple lower part passes through external screw thread and outlet joint Internal thread hole is threadedly coupled, and the longitudinal section of the outlet joint is reversed convex type structure, and the outlet joint is sleeved on upper end It is fixed that in the intermediate aperture of the righting and top surface of the diameter big end of reversed convex type structure is pressed on the top in the intermediate aperture Position boss on, the top for docking outer cylinder be inserted in the annular gap between outlet joint and upper end righting and in the righting of upper end Between aperture be threadedly coupled, dock outer cylinder roof compress outlet joint reversed convex type structure diameter big end bottom wall setting, in institute The outlet joint side stated was provided with cable aperture, and there is anti-rotation pin hole in the other side, and stop pin I is installed in the anti-rotation pin hole, Outlet joint and docking outer cylinder are fixed as one by the stop pin I, under the lower end barrel and one of the docking outer cylinder It holds the neutral threaded hole of righting to be threadedly coupled, is threaded with and turns on the lower end inner wall of the intermediate aperture of the docking outer cylinder Connector, the adapter are compressed with the bottom wall for docking outer cylinder by the positioning convex platform being arranged on adapter and are positioned;
A piece upper end tube body for crossing liquid pipe is connect with the lower thread of the neutral threaded hole of the adapter, close to mistake The outer wall of the mistake liquid pipe of the connecting portion of liquid pipe and adapter is circumferential uniformly through multiple through-holes for crossing liquid pipe tube wall, described It crosses in the middle part of the outer wall of liquid pipe and is provided with helical teeth, the mistake liquid pipe lower part is provided with cylindrical necking down boss, in the circle Separation sleeve plug, separation sleeve plug are fixed with by docking shear pin suit on mistake liquid pipe outer wall above cylindricality necking down boss Bottom wall it is concordant at cylindrical necking down boss variable diameter be arranged, the upper end of the separation sleeve plug interstitial hole is provided with ladder Annular groove is equipped with the split ring covered crossing in liquid pipe, in the ladder in the lower annular groove of the ladder annular groove The split ring blocking cap covered crossing in liquid pipe is installed, the split ring blocking cap compresses split ring and sets in the upper annular groove of annular groove It sets, the split ring blocking cap is threadedly coupled with separation sleeve plug, and the lower part between separation sleeve plug and excessively liquid pipe is provided with close Seal;
Thread seal is connected with docking main body on crossing liquid pipe lower end outer wall, and the roof of the docking main body compresses cylinder Wall surface is arranged at shape necking down boss variable diameter, and thread seal is connected with docking seeker on the docking lower body outer wall, It is provided with lower annular convex platform on the docking body outer wall above the roof of the docking seeker, is guided in the docking Head roof and lower annular convex platform between docking body outer wall on be successively set with from top to bottom dead ring, conducting ring and Lower dead ring, upper dead ring and lower dead ring are separately installed with sealing ring with docking between main body, upper dead ring external cylindrical surface and Lower dead ring external cylindrical surface has three seals ring recess respectively and is equipped with sealing ring, conducting ring inner wall by the first inner lead with Cable sealed joint I connects, and upper data one end cable L1 is connected with the first inner lead, the other end and the well head for being placed in ground Industrial personal computer connection, is connect by cable sealed joint I with the first inner lead, and is connected to conducting ring realization, and seeker is docked Upper end outer wall has seal groove and is equipped with sealing ring, and the seal groove lower part of docking seeker is provided with annular groove, One separation sleeve covers outside docking main body, separation sleeve plug and lower dead ring, the separation sleeve top and separation sleeve plug Thread seal connection and bottom pass through interior annular groove and lower dead ring outer wall cutting ferrule is tightly connected, the cable sealed joint I It was mounted on the bottom of the interstitial hole of liquid pipe and was supported on the roof of interstitial hole of docking main body;
The connector of giving up includes top connection, the neutral threaded hole spiral shell of the top connection bottom and slips body top Line is tightly connected, and the top of a piston of giving up is mounted on the interstitial hole of the slips main body neutral threaded hole lower part It is interior, the piston of giving up with slips main body by being fixedly linked along four circumferentially uniformly distributed shear pins of giving up of slips main body, Piston upper end inner hole of giving up is ball socket structure, and piston upper end outer wall of giving up is ring structure, is given up outside piston upper end in described It is provided with sealing ring between wall and slips main body inner wall, is outwardly protruded on the piston outer wall of giving up and is provided with first Outer annular boss outwardly protrudes setting on the slips main body bottom outer wall with the first outer annular boss opposite position There is the second outer annular boss, the piston upper end outer wall of giving up is provided with the annular shaft shoulder, the slips below the annular shaft shoulder A ring annular groove is provided in main body inner wall, when piston of giving up falls, the annular shaft shoulder can be supported on annular groove Upper setting;
One connecting cylinder top covers on the lower part outer wall of slips main body and top passes through the axis on slips body outer wall Shoulder positioning, is provided with sealing ring between slips main body and connecting cylinder, the second outer annular boss passes through the first external rings Shape boss, which compresses, to be fixed on the bottom wall of the positioning convex platform on connecting cylinder inner wall;
The top of one transit joint is threadedly coupled with the inner bolt hole of connecting cylinder lower end and the lower part of transit joint and mistake The inner bolt hole for flowing outer cylinder upper end is threadedly coupled, the connector shaft shoulder and connecting cylinder bottom wall that the connecting cylinder passes through setting among outer wall And overcurrent outer cylinder roof compresses be arranged to position respectively, it is standby to be threaded with righting in the overcurrent outer cylinder bottom outer wall Cap, bottom is equipped with sealing outlet joint in the overcurrent outer cylinder, is arranged in the righting standby cap lower end interstitial hole There is support level, the third outer annular boss being arranged in the sealing outlet joint bottom outer wall fixes on support level top On wall between overcurrent outer cylinder bottom wall, there are cable aperture out and fixed connection and sealing outlet joint and mistake in sealing outlet joint side The stop pin II of outer cylinder is flowed, connecting short section top is threaded in the threaded hole of sealing outlet joint lower end, accepts the gaily decorated basket Top is connect with the neutral threaded hole of connecting short section lower end, and the undertaking gaily decorated basket is ring structure;
It is sequentially installed with butt joint 207 and lock up and down in overcurrent outer cylinder between the transit joint and sealing outlet joint Ball seat is threadedly coupled, the internal thread hole of butt joint upper end between the lock ball seat top and the lower internal thread hole of butt joint Be threadedly coupled between butt joint body standby cap outer wall, on the interstitial hole inner wall of the butt joint between butt joint body standby cap and lock ball seat from Top to bottm is disposed with insulation sleeve, conductive sleeve and lower insulation sleeve, the interstitial hole of upper insulation sleeve and lower insulation sleeve and butt joint Between be respectively arranged between sealing ring, conductive sleeve and upper insulation sleeve and lower insulation sleeve and be provided with sealing ring, conductive sleeve passes through the Two inner leads are connect with cable sealed joint II, and cable sealed joint II is mounted on lock ball seat and butt joint and overcurrent outer cylinder Thread seal is connect between the gap of formation and between butt joint, and lower data one end cable L2 and the second inner lead connect It connects, the other end is connected with laminated distributor under well production mandrel;
The butt joint and lock ball seat include cylindrical main body, are evenly equipped with three on the outer wall of the cylindrical main body A male arms, three male arms outer walls and overcurrent outer tube inner wall shape are coincide and three male arms outer walls and overcurrent outer cylinder Inner wall be fitted close, between adjacent two male arms and overcurrent outer cylinder of butt joint and two adjacent male arms of lock ball seat with It was respectively formed liquid channel between overcurrent outer cylinder, was provided on the outer wall of lock ball seat side along the direction perpendicular to butt joint body standby cap axis Radial screw bore is equipped with the lock ball with spring in the radial screw bore, among the lock ball seat in inner hole The limit gaily decorated basket is installed and is connected between the two using shear pin, the limit gaily decorated basket is ring structure;
When cable butting male connector tubing string carrying under import set well connector of giving up inside, the cable butting male connector and The position given up between each component of connector are as follows: it crosses liquid pipe and is arranged in connecting cylinder, the interior annular groove of the separation sleeve lower part Top surface be supported on butt joint body standby cap top surface, open with annular convex platform clamping under main body, the bottom surface of the interior annular groove is docked Choma was hooked on helical teeth position in the middle part of liquid pipe, and upper insulation sleeve cuff makes the two form sealing, lower insulation sleeve on upper dead ring Cuff makes the two form sealing on lower dead ring, and conductive sleeve cuff forms conductive connection so that upper data is electric on conducting ring Cable L1 is connected to lower data cable L2 realization;Lock ball with spring is inserted through the docking seeker of the interstitial hole of lock ball seat At annular groove, docking locking is realized;The limit gaily decorated basket, which is supported on, to be accepted on the gaily decorated basket.
The invention has the following advantages:
(1) connector of giving up is given up mode using pitching, high reliablity of giving up;Gaily decorated basket design is limited, has load and shows Function is convenient for pipe distribution operation;Structure of locking ball locks after can realizing docking.
(2) for cable butting male connector using double righting structures up and down, whole righting effect is good, while protecting butt joint, Improve docking success rate.
(3) downhole cable wet type docking facilities have repetition docking capacity, and can maintain a long-term stability confession after successfully docking Electricity with communicate, only cable butting male connector out and is safeguarded in pump detection and workover, is conducive to field operation.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of downhole cable wet type docking facilities in the present invention;
Fig. 2 is A partial enlargement diagram in Fig. 1;
Fig. 3 is B partial enlargement diagram in Fig. 1;
Fig. 4 is C partial enlargement diagram in Fig. 1;
Fig. 5 is D-D diagrammatic cross-section in Fig. 1;
Fig. 6 is E-E diagrammatic cross-section in Fig. 1;
Fig. 7 is F partial enlargement diagram in Fig. 1;
Fig. 8 is the status diagram after connector pitching in place of the invention of giving up;
Fig. 9 is the status diagram after connector of the invention of giving up is given up;
Figure 10 is the mated condition schematic diagram of downhole cable wet type docking facilities in the present invention;
Figure 11 is K partial enlargement diagram in Figure 10;
Figure 12 is downhole cable wet type butt-joint process tubing string schematic diagram in the present invention.
Specific embodiment
To make the present invention be easier to be understood, below in conjunction with drawings and examples to technical solution of the present invention and its Technical effect is explained in detail.
As shown in Figure 1, oil well downhole cable wet type docking facilities of the invention include cable butting male connector and the company of giving up Connect device.
The cable butting male connector includes tubing nipple 101, and 101 lower part of tubing nipple passes through external screw thread and outlet The internal thread hole of connector 104 is threadedly coupled, and the longitudinal section of the outlet joint 104 is reversed convex type structure, and the outlet connects First 104 be sleeved in the intermediate aperture of the upper end righting 103 and top surface of the diameter big end of reversed convex type structure be pressed on it is described On top positioning convex platform in intermediate aperture, the top of docking outer cylinder 105 is inserted between outlet joint 104 and upper end righting 103 Annular gap in and be threadedly coupled with the intermediate aperture of upper end righting 103, the roof of docking outer cylinder 105 compresses outlet joint The bottom wall of the diameter big end of 104 reversed convex type structures is arranged.Cable aperture, the other side were provided in 104 side of outlet joint There is anti-rotation pin hole, stop pin I 102 is installed in the anti-rotation pin hole, the stop pin I 102 is by outlet joint 104 and right It connects outer cylinder 105 to be fixed as one, for limiting mutually rotating between outlet joint 104 and docking outer cylinder 105, so as to transmit Torque.The lower end barrel of the docking outer cylinder 105 is threadedly coupled with the neutral threaded hole of a lower end righting 106, described Docking outer cylinder 105 intermediate aperture lower end inner wall on be threaded with adapter 107, the adapter 107 is by turning The positioning convex platform being arranged on connector is compressed with the bottom wall for docking outer cylinder 105 and is positioned.
A piece upper end tube body for crossing liquid pipe 108 is connect with the lower thread of the neutral threaded hole of the adapter 107, In Outer wall close to the mistake liquid pipe 108 for the connecting portion for crossing liquid pipe 108 and adapter 107 is circumferentially uniformly distributed multiple (preferably four) The through-hole of 108 tube wall of liquid pipe is penetrated through, as shown in figure 3, being provided with helical teeth in the middle part of the outer wall of the mistake liquid pipe 108.Institute 108 lower part of mistake liquid pipe stated is provided with cylindrical necking down boss, the mistake liquid pipe outer wall above the cylindrical necking down boss It is upper that separation sleeve plug 109, the bottom wall of separation sleeve plug 109 and cylindrical necking down are fixed with by the docking suit of shear pin 116 Concordantly it is arranged at boss variable diameter, the preferred docking shear pin 116 is circumferential uniformly distributed along separation sleeve plug 109.Described The upper end of 109 interstitial hole of separation sleeve plug be provided with ladder annular groove, pacify in the lower annular groove of the ladder annular groove Equipped with covering in the split ring 115 crossed in liquid pipe 108, it is equipped with to cover in the upper annular groove of the ladder annular groove and is crossing liquid pipe On split ring blocking cap 114, the split ring blocking cap 114 compresses split ring 115 and is arranged, and split ring 115 is in split ring blocking cap 114 effects are lower to be in axial restraint state, and the split ring blocking cap 114 is threadedly coupled with separation sleeve plug 109.Separation sleeve is stifled Lower part between first 109 and mistake liquid pipe 108 is provided with sealing ring.
Thread seal is connected with docking main body 111 on crossing liquid pipe lower end outer wall.The roof pressure of the docking main body 111 Wall surface setting at tight cylinder necking down boss variable diameter, thread seal is connected with pair on 111 lower end outer wall of docking main body Seeker 112 is connect, is provided with lower convex annular on 111 outer wall of docking main body above the roof of the docking seeker 112 Platform, on 111 outer wall of docking main body between the roof and lower annular convex platform of the described docking seeker 112 from top to bottom successively Be set with dead ring 117, conducting ring 118 and lower dead ring 119, upper dead ring 117 and lower dead ring 119 with dock main body It is separately installed with sealing ring between 111, upper 117 external cylindrical surface of dead ring and lower 118 external cylindrical surface of dead ring have three close respectively Seal slot is simultaneously equipped with sealing ring, and 118 inner wall of conducting ring connect (first with cable sealed joint I 113 by the first inner lead Inner lead is connect i.e. with the sealing-plug cock body 92 in the cable connection sealing structure in the patent No. 201510288711.8 Can), (i.e. the one end upper data cable L1 passes through the cable connection sealing in 201510288711.8 for the one end upper data cable L1 The housing screw 94 of structure, copper ball 95 and rubber sleeve 97) it is connected with the first inner lead, the other end and the well head work for being placed in ground Control machine 306 (shown in Figure 12) connection, is connect by cable sealed joint I 113 with the first inner lead, and real with conducting ring 118 Now it is connected to.Docking 112 upper end outer wall of seeker has seal groove and is equipped with sealing ring, and in the sealing of docking seeker 112 Ring recess lower part is provided with annular groove, and the lower end of the docking seeker 112 is cone, convenient for guiding.
One 110 sets of separation sleeve are docking outside main body 111, separation sleeve plug 109 and lower dead ring, the separation sleeve 110 tops are connect with 109 thread seal of separation sleeve plug and bottom is sealed by interior annular groove and lower 119 outer wall cutting ferrule of dead ring Connection.
The cable sealed joint I 113 was mounted on the bottom of the interstitial hole of liquid pipe 108 and was supported on docking main body On the roof of 111 interstitial hole.I 113 structure of cable sealed joint is referring to " intelligent output well water blockoff stimulation system and its control Attached cable connection sealed structural schematic diagram shown in Fig. 9 in method (patent No. 201510288711.8) ".
The connector of giving up includes top connection 201, in 201 bottom of top connection and 202 top of slips main body Between threaded hole thread seal connect, the top of a piston 204 of giving up is mounted on 202 intermediate thread of slips main body In the interstitial hole of hole lower part, it is described give up piston 204 and slips main body 202 by along slips main body 202 it is circumferentially uniformly distributed four A shear pin 203 of giving up is fixedly linked, and shear pin 203 of giving up is given up to realize that 204 axial position of piston of giving up is fixed 204 upper end inner hole of piston is ball socket structure, and 204 upper end outer wall of piston of giving up is ring structure, is given up on piston 204 in described It is provided with sealing ring between end outer wall and 202 inner wall of slips main body, is outwardly protruded on 204 lower end outer wall of piston of giving up It is provided with the first outer annular boss.Preferably, multiple tracks ring groove shape is distributed along the circumference in 202 middle and lower part of slips main body At elastic claw structure is similar to, it can make slips main body middle and lower part that there is elasticity in this way.Opposite with the first outer annular boss It answers to outwardly protrude on the 202 bottom outer wall of slips main body of position and is provided with the second outer annular boss.The piston of giving up 204 upper end outer walls are provided with the annular shaft shoulder, are provided with a ring annular groove in the slips main body inner wall below the annular shaft shoulder, when losing When hand piston 204 falls, the annular shaft shoulder, which can be supported on annular groove, to be arranged.
One 205 top of connecting cylinder covers on the lower part outer wall of slips main body 202 and top passes through outside slips main body 202 Shaft shoulder positioning on wall, is provided with sealing ring, the second outer annular boss between slips main body 202 and connecting cylinder 205 It is compressed and is fixed on the bottom wall of the positioning convex platform on 205 inner wall of connecting cylinder by the first outer annular boss.
The top of one transit joint 206 is threadedly coupled with the inner bolt hole of 205 lower end of connecting cylinder and transit joint 206 Lower part is threadedly coupled with the inner bolt hole of 208 upper end of overcurrent outer cylinder, the joint axis that the connecting cylinder 205 passes through setting among outer wall Shoulder compresses respectively with connecting cylinder bottom wall and 208 roof of overcurrent outer cylinder to be arranged to position.Outside 208 bottom of overcurrent outer cylinder Righting standby cap 213 is threaded on wall, it is preferred that be provided on 213 lower end outer wall of righting standby cap guiding chamfering structure with Handling capacity of raising tool during tubing string removes prevents the chance card that is hampered.Bottom is installed in the overcurrent outer cylinder 208 There is sealing outlet joint 211, is provided with support level in the 213 lower end interstitial hole of righting standby cap, described seals The third outer annular boss being arranged in 211 bottom outer wall of wire terminal fixes on support level roof and 208 bottom of overcurrent outer cylinder Between wall, there are cable aperture out and fixed connection and sealing outlet joint 211 and overcurrent outer cylinder 208 in sealing 211 side of outlet joint Stop pin II 212,214 top of connecting short section be threaded in sealing 211 lower end of outlet joint threaded hole in, accept the gaily decorated basket 215 top is connect with the neutral threaded hole of 214 lower end of connecting short section, and the undertaking gaily decorated basket 215 is ring structure.
It is sequentially installed with and docks up and down in overcurrent outer cylinder 208 between the transit joint 206 and sealing outlet joint 211 First 207 and lock ball seat 210, it is threadedly coupled between 210 top of lock ball seat and the lower internal thread hole of butt joint 207, it is right It is threadedly coupled between the internal thread hole of 207 upper end of connector and 216 outer wall of butt joint body standby cap, in butt joint body standby cap 216 and lock ball seat Be disposed with from top to bottom on the interstitial hole inner wall of butt joint 207 between 210 insulation sleeve 217, conductive sleeve 218 and it is lower absolutely Edge set 219, is respectively arranged with sealing ring between upper insulation sleeve 217 and lower insulation sleeve 219 and the interstitial hole of butt joint 207, conductive Sealing ring is provided between set 218 and upper insulation sleeve 217 and lower insulation sleeve 219, conductive sleeve 218 passes through the second inner lead and electricity Cable seal nipple II 209 connects (connecting with the cable connection sealing structure in the patent No. 201510288711.8), electricity Cable seal nipple II 209 is mounted between lock ball seat 210 and butt joint 207 and the gap of overcurrent outer cylinder formation and and butt joint Thread seal connection is (between the cable connection sealing structure and butt joint 207 i.e. in the patent No. 201510288711.8 between 207 Thread seal connection), lower data one end cable L2 is connected with the second inner lead, the other end and laminated distributor under well production mandrel (Figure 12) connection, by cable sealed joint II 209 (in the cable connection sealing structure i.e. in the patent No. 201510288711.8 Housing screw 94, copper ball 95 and rubber sleeve 97) connect with the second inner lead, and with conductive sleeve 218 realization be connected to.
Cable sealed joint II 209 is exhausted with environmental liquids sealing after introducing butt joint 207 for realizing data cable L2 Edge.Cable sealed joint II 209 is identical as I 113 structure of cable sealed joint, referring to " intelligent output well water blockoff stimulation system And its control method (patent No. 201510288711.8) " in attached cable connection sealed structural schematic diagram shown in Fig. 9.
As shown in Figure 5 and Figure 6, the butt joint 207 and lock ball seat 210 include cylindrical main body, in the annulus Uniformly distributed on the outer wall of shape main body there are three male arms, and three male arms outer walls coincide with 208 inner wall shape of overcurrent outer cylinder and institute The three male arms outer walls and 208 inner wall of overcurrent outer cylinder stated are fitted close, adjacent two male arms and overcurrent outer cylinder of butt joint 207 Liquid channel g, lock ball seat were respectively formed between 208 and between adjacent two male arms and overcurrent outer cylinder 208 of lock ball seat 210 It is provided with radial screw bore along the direction perpendicular to 216 axis of butt joint body standby cap on 210 side outer walls, in the radial screw bore Lock ball 220 with spring is inside installed, the limit gaily decorated basket 221 and two is installed in the intermediate inner hole of lock ball seat 210 It is connected between person using shear pin, the limit gaily decorated basket 221 is ring structure.
When cable butting male connector tubing string carrying under import set well connector of giving up inside, the cable butting male connector and The position given up between each component of connector are as follows: cross liquid pipe and be arranged in connecting cylinder 205,110 lower part of separation sleeve it is interior The top surface of annular groove with dock annular convex platform clamping under main body 111, the bottom surface of the interior annular groove is supported on butt joint body standby cap On 216 top surfaces, split ring 115 was hooked on 108 middle part helical teeth position of liquid pipe, and upper 217 cuff of insulation sleeve is on upper dead ring 117 The two is set to form sealing, lower 219 cuff of insulation sleeve seals the two formation on lower dead ring 119, and 218 cuff of conductive sleeve is being led It is formed and is conductively connected so that upper data cable L1 is connected to lower data cable L2 realization on electric ring 118;Lock with spring Ball 220 is inserted through at 112 annular groove of docking seeker of the interstitial hole of lock ball seat 210, realizes docking locking;Limit the gaily decorated basket 221 are supported on the undertaking gaily decorated basket 215.
The connector of giving up is given up mode using pitching, and ball 222 is finally seated 204 upper end of piston of giving up in Fig. 8 Ball seat moves downward as shown in figure 8, the cutting of piston 204 of giving up after ground pressure is given up after shear pin 203, until work of giving up The annular groove position that the 204 upper end annular shaft shoulders reach slips main body 202 is filled in, 204 lower end of piston of giving up at this time is first annular convex Platform discharges 202 the second annular convex platform of lower end of slips main body, and slips main body 202 and connecting cylinder 205 disconnect, and above proposes electric pump production Top connection 201, slips main body 202 and piston 204 of giving up can be proposed that rest part sets well, as shown in Figure 9 by tubing string 301.
Figure 10 is the final mated condition of downhole cable wet type docking facilities, and the cable butting male connector is led under tubing string carrying Enter inside the connector of giving up, the annular shaft shoulder lower end surface of the separation sleeve 110 reaches 216 upper surface of butt joint body standby cap and at it It is cut under active force and docks shear pin 116,109 uplink of separation sleeve 110 and separation sleeve plug, 110 interior annular groove of separation sleeve Top surface eventually arrives at the lower annular convex platform clamping of docking main body 111, and as shown in figure 11, split ring 115 was in 108 middle part of liquid pipe tiltedly Tooth position is set, and is played the role of anti-lost;Upper dead ring 117 is formed with upper insulation sleeve 217 to be sealed, lower dead ring 119 and lower insulation sleeve 219 Sealing is formed, conducting ring 118 and conductive sleeve 218, which are formed, to be conductively connected, so upper data cable L1 and lower data electricity Cable L2 realizes connection;Lock ball 220 with spring is located at docking 112 annular groove of seeker, realizes docking locking;Limit flower Basket 221 is fallen after cutting pin on undertaking 215 top of the gaily decorated basket.
Use tubing string given up docking is electrically connected with wet type is realized with downhole cable wet type docking facilities using above-mentioned oil well Method the following steps are included:
(1) it gives up shown in Figure 12 303 lower end of connector connection separate-layer string 304, upper end jointed rod (or oil pipe) shape afterwards Enter well at Back-off Pipe String and with tubing string.
(2) tubing string reaches the pitching at well head behind predetermined position, while small displacement chases after ball, finally falls within piston 204 of giving up Upper end ball seat, at this point, well head pressurizes, piston 204 of giving up moves downward after cutting shear pin 203 of giving up under hydraulic action To 202 annular groove position of slips main body, 202 lower end the second outer annular boss of slips main body is disconnected on 205 inner wall of cylinder Positioning convex platform, slips main body 202 and connecting cylinder 205 are detached from, to realize that whole tubing string is slipped out of the hand.
(3) Back-off Pipe String is above mentioned, connector 303 of giving up, slips main body 202 and above section rise with tubing string, connecting cylinder 205 and it is partially disposed in underground below.
(4) cable butting male connector 302 is connected to the bottom of electric pump flow string 301 by tubing nipple, electric pump is raw After producing the decentralization in place of tubing string 301, cable butting male connector 302 arrived connector 303 of giving up and limit 221 position of the gaily decorated basket and cut at this time Disconnected pin.
(5) well head scribing line piping, connected pipes are hung, and are transferred tubing string for tubing hanger and are seated in production tree cable butting male connector at this time 302 smoothly import connector 303 of giving up, and 302 conducting ring 118 of cable butting male connector connects with 302 conductive sleeve 218 of connector of giving up Touching forms conductive connection state, the upper and lower dead ring 117,119 of cable butting male connector 302 and the upper and lower insulation sleeve of connector of giving up 217,219 contacts form sealed insulation, upper data cable L1 and lower data cable L2 in downhole cable wet type docking facilities The connection of complete conductive sealed insulation is formed under effect, and complete line company is established between well head industrial personal computer and laminated distributor under well production mandrel It connects.
(6) after docking, well head industrial personal computer, which powers on and sends instruction, gives laminated distributor under well production mandrel, if well head industrial personal computer can be just Laminated distributor under well production mandrel returned data is often received, judges to dock success or not.Otherwise, upper lifting pipe post repeats step (5).
Schematic description of the technical scheme of the invention is schematically described in conjunction with the accompanying drawings and embodiments above, but the present invention not office It is limited to above-mentioned specific embodiment.Those skilled in the art are it should be appreciated that in practical applications, in the present invention The planform or set-up mode of flow string and the specific steps of production method are likely to occur certain changes, and other Personnel may also make design similar with its under its enlightenment.In particular, it should be pointed out that being set without departing from of the invention Objective is counted, all obvious changes are all included in the scope of protection of the present invention.

Claims (5)

1. a kind of oil well downhole cable wet type docking facilities, it is characterised in that: including cable butting male connector and connector of giving up;
The cable butting male connector includes tubing nipple (101), and the tubing nipple lower part passes through external screw thread and outlet joint (104) internal thread hole is threadedly coupled, and the longitudinal section of the outlet joint is reversed convex type structure, the outlet joint suit In upper end, in the intermediate aperture of righting (103) and the top surface of the diameter big end of reversed convex type structure is pressed on the intermediate aperture On interior top positioning convex platform, the top of docking outer cylinder (105) is inserted in the annular gap between outlet joint and upper end righting And be threadedly coupled with the intermediate aperture of upper end righting, the roof for docking outer cylinder compresses the diameter big end of outlet joint reversed convex type structure Bottom wall setting, be provided with cable aperture in the outlet joint side, there is anti-rotation pin hole in the other side, in the anti-rotation pin hole Outlet joint and docking outer cylinder are fixed as one by middle installation stop pin I (102), the stop pin I, the docking outer cylinder Lower end barrel be threadedly coupled with the neutral threaded hole of a lower end righting (106), in the intermediate aperture of the described docking outer cylinder Lower end inner wall on be threaded with adapter (107), the adapter by the positioning convex platform that is arranged on adapter with it is right The bottom wall for connecing outer cylinder compresses positioning;
A piece upper end tube body for crossing liquid pipe (108) is connect with the lower thread of the neutral threaded hole of the adapter (107), In It is circumferential uniformly through multiple through-holes for crossing liquid pipe tube wall, In close to the outer wall of the mistake liquid pipe for the connecting portion for crossing liquid pipe and adapter It is provided with helical teeth in the middle part of the outer wall of the mistake liquid pipe, the mistake liquid pipe lower part is provided with cylindrical necking down boss, in institute Separation sleeve plug is fixed with by docking shear pin (116) suit on the mistake liquid pipe outer wall above cylindrical necking down boss stated (109), the bottom wall of separation sleeve plug is concordant at cylindrical necking down boss variable diameter is arranged, in the separation sleeve plug interstitial hole Upper end be provided with ladder annular groove, be equipped in the lower annular groove of the ladder annular groove cover cross liquid pipe (108) _ on Split ring (115), be equipped in the upper annular groove of the ladder annular groove cover cross liquid pipe on split ring blocking cap (114), the split ring blocking cap compresses split ring setting, and the split ring blocking cap is threadedly coupled with separation sleeve plug, every Set plug and the lower part crossed between liquid pipe are provided with sealing ring;
Thread seal is connected with docking main body (111) on crossing liquid pipe lower end outer wall, and the roof of the docking main body compresses circle Wall surface is arranged at cylindricality necking down boss variable diameter, and thread seal is connected with docking seeker on the docking lower body outer wall (112), it is provided with lower annular convex platform on the docking body outer wall above the roof of the docking seeker, in pair It connects and is successively set with dead ring from top to bottom on the docking body outer wall between the roof of seeker and lower annular convex platform (117), conducting ring (118) and lower dead ring (119), upper dead ring and lower dead ring are separately installed with docking between main body Sealing ring, upper dead ring external cylindrical surface and lower dead ring external cylindrical surface have three seals ring recess respectively and are equipped with sealing ring, lead Electric ring inner wall is connect by the first inner lead with cable sealed joint I, upper data one end cable L1 and the first inner lead Connection, the other end are connected with the well head industrial personal computer for being placed in ground, are connect by cable sealed joint I with the first inner lead, and It is connected to conducting ring realization, docking seeker upper end outer wall has seal groove and is equipped with sealing ring, and in docking seeker Seal groove lower part is provided with annular groove, a separation sleeve (110) cover docking main body (111), separation sleeve plug (109) with And outside lower dead ring, the separation sleeve top is connect with separation sleeve plug (109) thread seal and bottom passes through interior annular groove It is tightly connected with lower dead ring (119) outer wall cutting ferrule, the cable sealed joint I (113) was mounted on the interstitial hole of liquid pipe Bottom and be supported on docking main body interstitial hole roof on;
The connector of giving up includes top connection (201), the middle screw of the top connection bottom and slips main body (202) top Pit screw thread is tightly connected, and the top of a piston of giving up (204) is mounted under the slips main body neutral threaded hole In the interstitial hole in portion, the piston of giving up passes through four the give up shear pins circumferentially uniformly distributed along slips main body with slips main body (203) it is fixedly linked, piston upper end inner hole of giving up is ball socket structure, and piston upper end outer wall of giving up is ring structure, described It gives up and is provided with sealing ring between piston upper end outer wall and slips main body inner wall, on the piston outer wall of giving up outward Protrusion is provided with the first outer annular boss, in the slips main body bottom outer wall with the first outer annular boss opposite position On outwardly protrude and be provided with the second outer annular boss, the piston upper end outer wall of giving up is provided with the annular shaft shoulder, in annular It is provided with a ring annular groove in slips main body inner wall below the shaft shoulder, when piston of giving up falls, the annular shaft shoulder can It is supported on annular groove and is arranged;
One connecting cylinder (205) top covers on the lower part outer wall of slips main body and top passes through the axis on slips body outer wall Shoulder positioning, is provided with sealing ring between slips main body and connecting cylinder, the second outer annular boss passes through the first external rings Shape boss, which compresses, to be fixed on the bottom wall of the positioning convex platform on connecting cylinder inner wall;
The top of one transit joint (206) is threadedly coupled with the inner bolt hole of connecting cylinder lower end and the lower part of transit joint and mistake The inner bolt hole for flowing outer cylinder (208) upper end is threadedly coupled, the connecting cylinder (205) by the connector shaft shoulder that is arranged among outer wall and Connecting cylinder bottom wall and overcurrent outer cylinder roof compress respectively to be arranged to position, and screw thread connects in the overcurrent outer cylinder bottom outer wall Righting standby cap (213) are connected to, sealing outlet joint (211) are installed in described overcurrent outer cylinder (208) the interior bottom, described Support level is provided in the interstitial hole of righting standby cap lower end, outside the third being arranged in the sealing outlet joint bottom outer wall Annular convex platform fixes on support level roof between overcurrent outer cylinder (208) bottom wall, and there is cable out in sealing outlet joint side The stop pin II (212) of hole and fixed connection and sealing outlet joint and overcurrent outer cylinder, connecting short section (214) top are threadedly coupled In the threaded hole of sealing outlet joint lower end, the neutral threaded hole on the top and connecting short section lower end of accepting the gaily decorated basket (215) connects It connects, the undertaking gaily decorated basket is ring structure;
It is sequentially installed with pair up and down in overcurrent outer cylinder (208) between the transit joint (206) and sealing outlet joint (211) Connector (207) and lock ball seat (210), spiral shell between lock ball seat (210) top and the lower internal thread hole of butt joint (207) Line connection, is threadedly coupled between the internal thread hole and butt joint body standby cap (216) outer wall of butt joint upper end, in butt joint body standby cap and lock Insulation sleeve (217), conductive sleeve are disposed on the interstitial hole inner wall of butt joint between ball seat (210) from top to bottom (218) and lower insulation sleeve sealing ring, conductive sleeve, are respectively arranged between upper insulation sleeve and lower insulation sleeve and the interstitial hole of butt joint Sealing ring is provided between upper insulation sleeve (217) and lower insulation sleeve, conductive sleeve is connect by the second inner lead with cable seal The connection of first II (209), the gap that cable sealed joint II is mounted on lock ball seat (210) and butt joint and overcurrent outer cylinder is formed it Between and between butt joint thread seal is connect, lower data one end cable L2 is connected with the second inner lead, the other end and well The connection of lower leaf production mandrel;
The butt joint (207) and lock ball seat include cylindrical main body, are evenly equipped on the outer wall of the cylindrical main body Three male arms, three male arms outer walls and overcurrent outer tube inner wall shape coincide and outside three male arms outer walls and overcurrents Cylinder inner wall is fitted close, between adjacent two male arms and overcurrent outer cylinder of butt joint (207) and adjacent two of lock ball seat Liquid channel was respectively formed between a male arms and overcurrent outer cylinder, edge is perpendicular to butt joint body standby cap (216) on the outer wall of lock ball seat side The direction of axis is provided with radial screw bore, the lock ball (220) with spring is equipped in the radial screw bore, described Lock ball seat among the limit gaily decorated basket be installed in inner hole and connected between the two using shear pin, the limit gaily decorated basket It (221) is ring structure;
When cable butting male connector imports inside the connector of giving up for setting well under tubing string carrying, the cable butting male connector and give up Position between each component of connector are as follows: cross liquid pipe setting in the connecting cylinder (205), separation sleeve (110) lower part it is interior The top surface of annular groove with dock annular convex platform clamping under main body (111), it is standby that the bottom surface of the interior annular groove is supported on butt joint body On cap (216) top surface, split ring (115) was hooked on helical teeth position in the middle part of liquid pipe (108), and upper insulation sleeve (217) cuff is upper The two is set to form sealing on dead ring (117), lower insulation sleeve (219) cuff seals the two formation on lower dead ring (119), Conductive sleeve (218) cuff forms conductive connection so that upper data cable L1 and lower data cable L2 on conducting ring (118) Realize connection;Lock ball (220) with spring is inserted through docking seeker (112) annular of the interstitial hole of lock ball seat (210) Groove realizes docking locking;The limit gaily decorated basket (221), which is supported on, to be accepted on the gaily decorated basket (215).
2. oil well according to claim 1 downhole cable wet type docking facilities, it is characterised in that: the docking shearing Pin is circumferentially uniformly distributed along separation sleeve plug.
3. oil well according to claim 1 or 2 downhole cable wet type docking facilities, it is characterised in that: pair The lower end of seeker is connect as cone.
4. oil well according to claim 3 downhole cable wet type docking facilities, it is characterised in that: in the slips master Body middle and lower part is distributed along the circumference with multiple tracks annular groove and is formed similar to elastic claw structure.
5. oil well according to claim 3 downhole cable wet type docking facilities, it is characterised in that: standby in the righting Guiding chamfering structure is provided on cap lower end outer wall.
CN201910634196.2A 2019-07-15 2019-07-15 Wet-type butt joint device for underground cable for oil well Active CN110485943B (en)

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Cited By (7)

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Publication number Priority date Publication date Assignee Title
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
CN112366622A (en) * 2020-11-02 2021-02-12 长江大学 Cable-pipe integrated continuous pipe connector assembly
CN113029209A (en) * 2021-04-01 2021-06-25 山东大学 Monopole capacitive sensor and connector device
CN113612035A (en) * 2021-05-26 2021-11-05 中国海洋石油集团有限公司 Wet connector in pit
CN114524423A (en) * 2022-03-16 2022-05-24 山东永达环保科技有限公司 Regenerating device for pickling waste phosphoric acid by chemical method
CN115680545A (en) * 2021-07-28 2023-02-03 中国石油天然气集团有限公司 Steel coiled tubing underground cable passes through bypass nipple joint
WO2023245944A1 (en) * 2022-06-20 2023-12-28 中国石油天然气集团有限公司 Drill pipe with cable and manufacturing method therefor

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CN206409200U (en) * 2016-12-09 2017-08-15 北京天擎丽都科技有限公司 One kind has the digital dispensing downhole cable wet joint instrument of cable
US10050375B1 (en) * 2017-10-06 2018-08-14 Baker Hughes, A Ge Company, Llc Direct conductor seal for submersible pump electrical connector

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CN202073553U (en) * 2011-04-28 2011-12-14 东营市华诚石油科技有限责任公司 Quick butt-joint tool for downhole logging instruments
US20160340982A1 (en) * 2012-11-30 2016-11-24 Intelliserv, Llc Pipe joint having coupled adapter
CN106150394A (en) * 2016-08-22 2016-11-23 中国石油天然气股份有限公司 A kind of downhole oil pipe inner cable docking facilities
CN206409200U (en) * 2016-12-09 2017-08-15 北京天擎丽都科技有限公司 One kind has the digital dispensing downhole cable wet joint instrument of cable
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN112366622A (en) * 2020-11-02 2021-02-12 长江大学 Cable-pipe integrated continuous pipe connector assembly
CN113029209A (en) * 2021-04-01 2021-06-25 山东大学 Monopole capacitive sensor and connector device
CN113612035A (en) * 2021-05-26 2021-11-05 中国海洋石油集团有限公司 Wet connector in pit
CN113612035B (en) * 2021-05-26 2024-03-12 中国海洋石油集团有限公司 Underground wet connector
CN115680545A (en) * 2021-07-28 2023-02-03 中国石油天然气集团有限公司 Steel coiled tubing underground cable passes through bypass nipple joint
CN114524423A (en) * 2022-03-16 2022-05-24 山东永达环保科技有限公司 Regenerating device for pickling waste phosphoric acid by chemical method
WO2023245944A1 (en) * 2022-06-20 2023-12-28 中国石油天然气集团有限公司 Drill pipe with cable and manufacturing method therefor

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