CN102146778B - Through-tubing operation system for wireline pulling electric pump - Google Patents
Through-tubing operation system for wireline pulling electric pump Download PDFInfo
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- CN102146778B CN102146778B CN 201010535337 CN201010535337A CN102146778B CN 102146778 B CN102146778 B CN 102146778B CN 201010535337 CN201010535337 CN 201010535337 CN 201010535337 A CN201010535337 A CN 201010535337A CN 102146778 B CN102146778 B CN 102146778B
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- 229910000831 Steel Inorganic materials 0.000 claims description 36
- 239000010959 steel Substances 0.000 claims description 36
- 238000000034 method Methods 0.000 claims description 13
- 239000010426 asphalt Substances 0.000 claims description 8
- 238000012216 screening Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 210000000056 organ Anatomy 0.000 claims description 2
- 239000012530 fluid Substances 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 230000006378 damage Effects 0.000 abstract description 4
- 210000001503 joint Anatomy 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 8
- 239000003129 oil well Substances 0.000 description 6
- 230000009897 systematic effect Effects 0.000 description 5
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- 238000005516 engineering process Methods 0.000 description 3
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- 238000012954 risk control Methods 0.000 description 2
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- 238000005452 bending Methods 0.000 description 1
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- 238000005553 drilling Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010913 used oil Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a through-tubing operation system for a wireline pulling electric pump, which comprises a sleeve, a cable, an oil tube an a pump oil machine, wherein the cable lays between the sleeve and the oil tube and is directly connected with the lower part of the oil tube to supply the power to the pump oil machine; the pump oil machine is contained inside the oil pipe; and a suspension seal assembly, a flexible adjustment nipple, a pump, a protector, a motor, a hanger, an eccentric guide torsion resistant device and an underground control valve which are connected with one another are arranged on the pump oil machine in sequence from top to bottom. The eccentric guide torsion device ensures the accurate connection between the motor and the cable and also avoids the damage effect of a falling object to the connection position simultaneously; the length-adjustable flexible adjustment nipple shares the pressure of a tubing fluid column; on the other hand, the accurate butt joint of the eccentric guide torsion resistant device at the lower part is also ensured; and the control valve effectively avoids the blowout risk. The tubing operating system for the wireline pulling electric pump reduces the maintenance cost and the workover time, is safe to use and has wide application prospect.
Description
Technical field
The present patent application relates to a kind ofly can remove electric pump by steel wire, and electric pump belongs to the oil recovery machiner technical field by the operating system of oil pipe.
Background technology
The field produces exploitation is in known oil reservoir drilling well, after the completion, the oil gas of subsurface deposit is transported to the technological process on ground.At early field life, the rising of oil gas can rely on the energy blowing on stratum by luring method such as stream, and oil gas is transported on the ground.When the oil reservoir energy shortage, or during the moisture rising of oil reservoir, the energy that can rely on oil well pump, gaslift etc. manually to augment is enumerated.Pump extraction oil process is the most common oil-extraction method of artificial lift, is lowered to oil well pump in oil well, and the liquid of output in the oil reservoir is pumped into the method on ground, is called for short the oil pumping method, and the used oil well pump of this method is divided into by the power kind of drive bar and no bar two classes.((electric submersible pump (ESP)) is no bar type of drive to electric submersible pump, its cover centrifugal multistage pump multiple centrifugal pump and direct-connected pump group of motor, electricity is given the motor of down-hole by power cable to drive centrifugal pump, fluid in the well is pumped into ground, because the pump group is to use in sleeve pipe, the diameter of pump is restricted, so take elongated shape.For preventing that downhole fluid (particularly water) from entering armature motor was lost efficacy, need take special sealing device, and install protector additional at the connecting portion of pump and motor.
Electric submersible pump is applicable to middle and high production fluid amount, the thin oil that gassiness and sand are less or the oil well of wet crude.A general day discharge capacity is 100～1000m
3, lift is in 2000m the time, efficient is higher, can be used for inclined shaft.Shaft building is simpler, convenient management, and the phase of being excused from a college course is longer, and the efficiency of pump forms that this is higher but also exist pump about 70%, rountrip and overhaul all defectives of more complicated.
Tradition electric pump completion practice system, exist following weak point: 1, because traditional tubing size is littler than electric pump, the electric pump outlet is connected to oil pipe bottom, remove all must be oil pipe at every turn, cable, electric pump removes in the lump, need employ large-scale equipment (as 60-100 ton workover rig), a lot of personnel (20-40 people); 2, more exchange device is many in traditional well workover, and the life-span is not had overdue oil pipe, cable, and safety valve, auxiliary equipment such as packer are changed together, and expense is higher; 3, traditional well workover preparation and well workover cycle all long, prepared in general 3-5 days, workover treatment in 3-7 days, total well workover cycle time is 6-12 days, inefficiency; 4, traditional completion/well workover unmanned platform at sea, the desert, the mountain area, particular surroundings such as marsh are very difficult.
In the world, U.S. BAKER HUGHES CENTRILIFT company uses the operating system of " little oil pipe removes electric pump continuously ", this system cable encapsulates in special little oil pipe, the size of oil pipe is greater than the size of electric pump, like this, when workover treatment, just can by on carry the little oil pipe and the cable that are connected with electric submersible pump in the oil pipe electric pump taken out in oil pipe.But this operating system also exists weak point: 1, continuous little oil pipe coil pipe Chefei Chang Juda, and deadweight 30-40 ton, mobilization and operating cost are very high, need 8-10 people's operation; 2, wrap up cable in the little oil pipe continuously, need customization, cost of manufacture height and common cable can not be general; 3, little oil pipe well workover continuously, preparing needs 3-5 days, and operation 2-3 days, the well workover cycle amounted to 5-8 days; 4, continuously little oil pipe completion/well workover at sea platform limited by crane lifting tonnage, in the desert, mountain area, marsh are limited by road conditions.
U.S. ZEITECS company has proposed a kind of operating system that removes electric pump by steel wire, this system cable is between oil pipe and sleeve pipe, the mode of " load-bearing of three-phase equilibrium guiding is electrically connected " is adopted in the junction of motor and cable, during workover treatment, can be by steel wire with electric pump, motor by taking out in the oil pipe, saved the man power and material.But the design of this system still exists following shortcoming: 1, the plug design of this system is 120 degree balanced types in the bottom for the three-phase angle, do not have the spatial design shutter, during workover treatment, one has any junk, desilting, plug is inserted not in place, and whole system lost efficacy, just must be oil pipe, cable, the down-hole aid all trips out, and has reduced the reliability of system, has increased operating risk; 2, the last seal assembly of this system does not have hanging function, regulating short circuit is rigidity, all electric pump deadweights, the head of liquid in the oil pipe all is delivered on the following load-bearing step by the electric pump assembly, and the oil pipe head of liquid is very big, can bend electric pump, during electric pump work, axle is rotation at a high speed, and the electric pump vibrations are serious, easily fatigue fracture of axle greatly reduces life-span of electric pump; 3, this system has no idea to install additional other necessary tool strings such as safety valve from pipe side feed liquor on the pipe string.These shortcomings have all limited its range of application, have increased the risk of oil producing operation, are unfavorable for risk control.
Summary of the invention
The present patent application namely is at the weak point in above-mentioned existence and the oil well operating system, provide a kind of steel wire to remove electric pump operation through tubing system, this system can remove electric pump by steel wire, motor and the accurately contraposition of cable junction, and can effectively prevent the junk jam, and have flexible pipe nipple in the system, with the function that realizes disperseing oil pipe hydraulic pressure and guarantee motor, the accurate contraposition of cable, control valve also has been installed, the pump line string that prevents from electrifying suction and bring out blowout.
The mentality of designing of the present patent application is: 1, the size of oil pipe can remove electric pump by steel wire greater than the size of electric pump from oil pipe; 2, cable is out of shape between oil pipe and sleeve pipe, and arrival oil pipe lower end is connected with motor bottom; 3, the junction of motor and cable connector is set up one " the antitorque device of eccentric guiding ", and design a shutter above cable socket, can guarantee that motor, cable accurately dock, and prevent junk jam between; 4, below hanging seal assembly, set up length-adjustable " flexible pipe nipple ", and the oil pipe that will hang the assembly below is designed to a section " load-bearing shoulder " of constriction slightly, thereby the suspension assembly by chance is sitting on the load-bearing shoulder, like this, on the one hand, accurately contraposition between motor below flexible pipe nipple has been guaranteed and the cable, on the other hand, the design of load-bearing shoulder, most heads of liquid of oil pipe have been shared, pressure on the load-bearing step below making significantly reduces, and has avoided electric pump to bend and the danger of fatigue fracture; 5 fluids enter from off-centre leads the pipe of antitorque device, are provided with control valve below, open when the central tube string inserts, on close the pump line string that prevents from effectively electrifying suction and bring out blowout when proposing.
Specifically; steel wire of the present invention removes electric pump operation through tubing system; described operating system comprises sleeve pipe, cable, oil pipe and pump oil machinery; wherein; cable is out of shape between sleeve pipe and oil pipe, and the power supply of pump oil machinery is given in through oil pipe below, and oil pipe inside holds pump oil machinery; pump oil machinery is followed successively by interconnective suspension seal assembly, soft readjustment pipe nipple, pump, protector, motor, hanger, the eccentric antitorque device of guiding and downhole control valve from top to bottom, it is characterized in that:
1, described soft readjustment pipe nipple is made up of the pipe socket that two diameters do not wait, and two pipe contacts site are by rubber sealing, and two pipes can slide up and down relatively, does similar piston motion;
2, one section load-bearing shoulder that diameter is slightly narrow is set at the position that described oil pipe contacts with the suspension seal assembly, makes described suspension seal assembly can be sitting on the described load-bearing shoulder;
3, the antitorque device of described eccentric guiding is connected the hanger below, can dock identical tubular structure by the feeder ear that is connected with cable that is positioned at the below mutually with the power connection end two parts that are connected with motor that are positioned at the top forms, the electrical connection section of feeder ear and power connection end is biased in a side of tubular structure, the remainder of tubular structure is the asphalt channel of hollow, above the electrical connection position of described feeder ear, be covered with one can folding screening thing plate, hide the thing plate and when not pegging graft, block the electrical connection position that is positioned at the feeder ear below it, in the descending process of the antitorque device power connection end of described eccentric guiding, can open hiding the thing plate, thereby make power connection end accurately dock with the electrical connection position of feeder ear, after the antitorque device of eccentric guiding is pegged graft, two ends closely cooperate mutually, when pump operation, bear the reaction torque of motor;
4, below the antitorque device of described eccentric guiding downhole control valve is installed, the antitorque device power connection end of eccentric guiding lower end is provided with control lever, and when inserting down, control lever is pushed downhole control valve open, on when carrying, control lever is carried on together, downhole control valve is closed automatically.
Steel wire of the present invention removes electric pump operation through tubing system, it is characterized in that: the plane that the feeder ear of the antitorque device of described eccentric guiding and power connection end coincide mutually and the cross section of described tubular structure have a certain degree, and are respectively equipped with at the tube wall of the highs and lows on described plane and can make feeder ear and mutual chimeric groove and the protruding key of power connection end.
Steel wire of the present invention removes electric pump operation through tubing system, it is characterized in that: have a downward opening upper groove at the coincide tube wall of peak on plane of the antitorque device power connection end of described eccentric guiding, on the tube wall of minimum point, extend tip epirelief key down downwards; What match with it is, extend a tip following protruding key up at the coincide tube wall of peak on plane of described eccentric guider feeder ear, tube wall in minimum point has opening low groove up, and upper groove is chimeric mutually with following protruding key, and epirelief key and low groove are chimeric mutually.
Steel wire of the present invention removes electric pump operation through tubing system, it is characterized in that: with the connecting portion of the power connection end plug for projection, be recessed jack with the connecting portion of feeder ear on the power connection end on the antitorque device feeder ear of described eccentric guiding.
Steel wire of the present invention removes electric pump operation through tubing system, it is characterized in that: the groove on the antitorque organ pipe wall of described eccentric guiding and the height of protruding key are greater than the height of described plug and jack.
Steel wire of the present invention removes electric pump operation through tubing system, it is characterized in that: described cable adopts three-phase alternating current to power to motor.
Steel wire of the present invention removes electric pump operation through tubing system, has following advantage:
1, the design of ZEITECS company, the mode of " load-bearing of three-phase equilibrium guiding is electrically connected " is adopted in the junction of motor and cable, plug design three-phase angle is 120 degree balanced types, and no shutter also can't design shutter, in case any junk is arranged, plug is inserted not in place, and whole system lost efficacy, must be oil pipe, cable, the down-hole aid all trips out; And the present patent application has adopted the design of " eccentric guiding ", the setting of having living space just now on electric connection-peg " hides the thing plate ", effectively avoided blocking-up and the destruction of junk in electric connection-peg junction, can realize the accurate butt joint of electric connection-peg, improve antijamming capability and the reliability of system greatly;
2, the present patent application has been set up " the soft readjustment pipe nipple " that length can change adjusting hanging between seal assembly and the pump, and be provided with one section narrow slightly " load-bearing shoulder " in oil pipe and suspension seal assembly contact site, thereby make that hanging seal assembly is sitting on described " load-bearing shoulder ", this improvement has brought the technique effect of two aspects: one, because " soft readjustment pipe nipple " has certain retractility, therefore, can guarantee the below " eccentric guider " have enough spaces to carry out contraposition accurately; Two, a part of head of liquid of oil pipe has been shared in the design of " load-bearing shoulder ", and the pressure on the load-bearing step below making significantly reduces, and has avoided electric pump to bend and the danger of fatigue fracture;
3, steel wire of the present invention removes electric pump operation through tubing system, and the size of electric pump and motor can remove described operating system by steel wire less than the size of oil pipe, and is easy to maintenance, uses manpower and material resources sparingly, and stops well time weak point;
4, the electrical connection position of " the antitorque device of eccentric guiding " feeder ear is the plug (male end) of projection, the electrical connection position of power connection end is recessed jack (female end), be that female end is compared with the electrical connection position of feeder ear, such design has guaranteed that further junk is unlikely to fall in the jack of feeder ear, has reduced the destruction that junk is connected with cable motor;
5, groove and the protruding key on " the antitorque device of eccentric guiding " tube wall, and the design of feeder ear and the inclination of power connection end contact surface, when feeder ear in descending process, if feeder ear and power connection end do not fit like a glove, power connection end can slide along the tube wall that tilts, finally slip in the groove that matches with it, played the accurately effect of " guiding ";
6, the height of the groove on " the antitorque device of eccentric guiding " tube wall and protruding key is greater than the height of plug and jack, such design is to have considered, when downhole system is worked, have retaining of silt unavoidably, there is silt if guaranteed at " eccentric guider " tube wall, protruding key is not when also being inserted into bottom portion of groove fully, and attaching plug, jack closely connect;
7, below the cable connector place control valve is installed, on the antitorque device of eccentric guiding control lever is housed, when inserting down, control lever is pushed control valve open, on when carrying, control lever is carried on together, control valve is closed under the effect of spring automatically.
Description of drawings
Fig. 1 is the cross-sectional view of the underground work system of ZEITECS company, wherein 10 regulates pipe nipple, 15 for seal assembly, 14 for rigidity for oil pipe, 13 for cable, 12 for sleeve pipe, 11 and is electrically connected the position for the three-phase equilibrium load-bearing of leading for motor, 18 for protector, 17 for pump, 16;
Fig. 2 is the cross-sectional configuration schematic diagram that the three-phase equilibrium guiding load-bearing of the underground work system of ZEITECS company is electrically connected the position, and wherein, 180 is that balance wet joint, 181 is that stable steering device, 182 is the balance carrier, and their angle all is all 120 degree;
Fig. 3 is the cross-sectional view that steel wire of the present invention removes electric pump operation through tubing system, wherein, 20 is that sleeve pipe, 21 is downhole control valve for the antitorque device of eccentric guiding, 30 for following hanger, 29 for motor, 28 for protector, 27 for pump, 26 for soft readjustment pipe nipple, 25 for last suspension seal assembly, 24 for oil pipe, 23 for cable, 22;
Fig. 4 is that steel wire of the present invention removes the cross-sectional view that electric pump operation through tubing system flexibility is regulated pipe nipple and load-bearing shoulder, 23 for hang seal assembly, 230 for load-bearing shoulder, 24 be that soft readjustment pipe nipple, 240 is cushion rubber;
Fig. 5 is that steel wire of the present invention removes the electric pump operation through tubing systematic eccentricity antitorque device cross-sectional view that leads, wherein, 21 is that cable, 290 is that tube wall, 291 is that asphalt channel, 292 upper grooves, 293 are that epirelief key, 294 is that jack, 295 is that plug, 296 is that protruding key, 298 was low groove under screening thing plate, 297 was;
Fig. 6 is that steel wire of the present invention removes the electric pump operation through tubing systematic eccentricity antitorque device section syndeton schematic diagram that leads, and wherein, 21 is that cable, 290 is asphalt channel for tube wall, 291;
Fig. 7 is the perspective view that steel wire of the present invention removes electric pump operation through tubing systematic eccentricity guider, and wherein, 292 upper grooves, 293 are that epirelief key, 297 is that protruding key, 298 is low groove down;
Fig. 8 is that steel wire of the present invention removes electric pump operation through tubing systematic eccentricity guider power connection end cross-sectional structure schematic diagram, and wherein, 291 is that asphalt channel, 294 is electric jack;
Fig. 9 is that steel wire of the present invention removes electric pump operation through tubing systematic eccentricity guider feeder ear cross-sectional structure schematic diagram, and wherein, 291 is that asphalt channel, 295 is electric connector;
Figure 10 is the cross-sectional view that steel wire of the present invention removes the downhole control valve of electric pump operation through tubing system, and wherein 295 is that plug, 30 is that downhole control valve, 31 is control lever.
The specific embodiment
The described steel wire of the present patent application is removed electric pump operation through tubing system architecture and function is described in detail below in conjunction with accompanying drawing; purpose is better to understand content of the present invention for the public; rather than to the restriction of technology contents of the present invention; in fact, increase and decrease, replacement and the improvement of any element of making in not violating the spiritual essence of invention of the present invention are all within the present patent application technical scheme required for protection.
Fig. 1 and Fig. 2 are to background technology of the present invention, and the structure of the underground work system of ZEITECS company is carried out some explanations, and purpose is in contrast, thus outstanding innovation main points of the present invention.This system is electrically connected position 18 and is constituted by sleeve pipe 10, cable 11, oil pipe 12, seal assembly 13, rigidity adjusting pipe nipple 14, pump 15, protector 16, motor 17, the load-bearing of three-phase equilibrium guiding; wherein; cable 11 is between oil pipe 12 and sleeve pipe 10; the mode 18 of " load-bearing of three-phase equilibrium guiding is electrically connected " is adopted in the junction of motor 17 and cable 11; because the size of oil pipe 12 is greater than the size of pump 15; during workover treatment; can be by steel wire with electric pump 15, motor 17 by taking out in the oil pipe 12, saved the man power and material.But this system still exists following shortcoming: 1, the plug design of this system is (as shown in Figure 2) of 120 degree balanced types for the three-phase angle, have no idea to design shutter, once any junk is arranged, plug is inserted not in place, whole system lost efficacy, and just must employ main equipment (60-100 ton workover rig) oil pipe, cable, the down-hole aid all trips out, and the well workover of well workover period ratio tradition also will be grown like this; 2, the seal assembly 13 of this system does not have hanging function, regulating short circuit 14 is rigidity, all electric pump deadweights, the oil pipe head of liquid all is delivered on the following load-bearing step, and the oil pipe head of liquid is very big, can bend electric pump, electric pump spindle rotates at a high speed, the electric pump vibrations are serious, axle fatigue fracture easily, the life-span of having reduced electric pump; 3, should be and adopted the balanced type design, well liquid can not pass through from pipe, has no idea to design control valve, when on when carrying electric pump, oil well is easy to bring out because of suction blowout; These shortcomings have all increased the risk of oil producing operation greatly, are unfavorable for risk control.
As shown in Figure 3; the described steel wire of the present patent application removes electric pump operation through tubing system; comprise sleeve pipe 20, cable 21, oil pipe 22 and pump oil machinery; wherein; sleeve pipe 20 is positioned at the outermost layer of entire job system; cable 21 is out of shape between sleeve pipe 20 and oil pipe 22; the power supply of pump oil machinery is given in through oil pipe below; oil pipe inside holds pump oil machinery, and pump oil machinery is followed successively by interconnective suspension seal assembly 23, soft readjustment pipe nipple 24, pump 25, protector 26, motor 27, hanger 28, the eccentric antitorque device 29 of guiding and storm valve 30 from top to bottom.
As shown in Figure 4, described soft readjustment pipe nipple 24 is made up of the pipe socket that two diameters do not wait, and two pipe contacts site are by cushion rubber 240 sealing, and two pipes can slide up and down relatively, does similar piston motion; At the position that described oil pipe contacts with suspension seal assembly 23 one section load-bearing shoulder 230 that diameter is slightly narrow is set, makes described suspension seal assembly 23 can be sitting on the described load-bearing shoulder 230.
Shown in Fig. 5-7, the antitorque device 29 of described eccentric guiding can dock identical tubular structure by the feeder ear that is connected with cable that is positioned at the below mutually with the power connection end two parts that are connected with motor that are positioned at the top to be formed, the electrical connection section of feeder ear and power connection end is biased in a side of tubular structure, the remainder of tubular structure is the asphalt channel 291 of hollow, above the electrical connection position of described feeder ear, be covered with one can folding screening thing plate 296, hide the electrical connection position that thing plate 296 blocks the feeder ear that is positioned at its below when flat, in the descending process of the antitorque device power connection end of described eccentric guiding, can push open hiding thing plate 296, thereby make power connection end accurately dock with the electrical connection position of feeder ear.
The plane that the described eccentric antitorque device feeder ear of guiding and power connection end coincide mutually and the cross section of described tubular structure have a certain degree, have tip upper groove 292 up at the coincide tube wall 290 of peak on plane of the antitorque device power connection end of described eccentric guiding, on the tube wall of minimum point, extend tip epirelief key 293 down downwards; Match with it, extend a tip following protruding key 297 up at the coincide tube wall of peak on plane of described eccentric guider feeder ear, tube wall in minimum point has tip low groove 298 down, upper groove 292 is with protruding key 297 is chimeric mutually down, and epirelief key 293 is chimeric mutually with low groove 298.
The design of the antitorque device of eccentric guiding, purpose is in order to work as feeder ear in descending process, when if feeder ear does not accurately engage with power connection end, power connection end can slide along the tube wall contact surface that feeder ear tilts, final epirelief key 293 can slip into the low groove 298 that matches with it, simultaneously, upper groove 292 also can be with protruding key 297 be closely chimeric down, thereby guaranteed that power connection end and feeder ear are electrically connected the accurate of position and dock, played the accurately effect of " guiding ", and after docking successfully, two ends closely cooperate mutually, when pump operation, bear the reaction torque of motor.As preferred embodiment, the height of described groove and protruding key is greater than the height of described plug and jack.If guaranteed there is silt at " the antitorque device of eccentric guiding " tube wall, protruding key is not when also being inserted into bottom portion of groove fully, and attaching plug, jack closely connect.
Shown in Fig. 8-9, be protruding plug 295 with the connecting portion of power connection end on the antitorque device feeder ear of described eccentric guiding, is recessed jack 294 with the connecting portion of feeder ear on the power connection end, as seen from the figure, all partially in a side of tube chamber, opposite side is the asphalt channel 291 of hollow for plug and jack.Because electrical connector is partially in a side, therefore can arrange in electrical connection place of feeder ear one can folding screening thing plate, in the descending process of power connection end, can open hiding the thing plate, guarantee to be electrically connected; Feeder ear (being the lower end) be electrically connected the plug that the position is set to protrude, effectively avoided junk to be trapped in the generation of electrical connection terminal, guaranteed accurate butt joint, and reduced the risk of safeguarding.
Figure 10 is the cross-sectional view that steel wire of the present invention removes the downhole control valve of electric pump operation through tubing system, below the antitorque device of described eccentric guiding, downhole control valve 30 is installed, the antitorque device power connection end of eccentric guiding lower end is provided with control lever 31, when inserting down, control lever is pushed downhole control valve open, on when carrying, control lever is carried on together, downhole control valve is closed automatically, the pump line string that prevented from electrifying suction and bring out blowout.
The described steel wire of the present patent application removes electric pump operation through tubing system can remove electric pump and Aided Machine by steel wire, has saved lot of manpower and material resources; Off-centre guiding and shutter design by electric grafting, guarantee the accurate butt joint of motor and cable, also effectively avoided the destruction of junk to the circuit connection, and disperseed the pressure of oil pipe fluid column, the pressure that has alleviated time load-bearing makes the electric pump bending, thereby has prolonged the life-span of electric pump; Design has control valve below connection-peg, makes that downhole safety control improves greatly when removing the electric pump well workover.
Claims (6)
1. a steel wire removes electric pump operation through tubing system; described operating system comprises sleeve pipe, cable, oil pipe and pump oil machinery; wherein; cable is out of shape between sleeve pipe and oil pipe; the power supply of pump oil machinery is given in through oil pipe below; oil pipe inside holds pump oil machinery, and pump oil machinery is followed successively by interconnective suspension seal assembly, soft readjustment pipe nipple, protector, pump, motor, hanger, the eccentric antitorque device of guiding and downhole control valve from top to bottom, it is characterized in that:
1) described soft readjustment pipe nipple is made up of the pipe socket that two diameters do not wait, and two pipe contacts site are by rubber sealing, and two pipes can slide up and down relatively, does similar piston motion;
2) one section load-bearing shoulder that diameter is slightly narrow is set at the position that described oil pipe contacts with the suspension seal assembly, makes described suspension seal assembly can be sitting on the described load-bearing shoulder;
3) the antitorque device of described eccentric guiding is connected the hanger below, can dock identical tubular structure by the feeder ear that is connected with cable that is positioned at the below mutually with the power connection end two parts that are connected with motor that are positioned at the top forms, the electrical connection section of feeder ear and power connection end is biased in a side of tubular structure, the remainder of tubular structure is the asphalt channel of hollow, above the electrical connection position of described feeder ear, be covered with one can folding screening thing plate, hide the thing plate and when not pegging graft, block the electrical connection position that is positioned at the feeder ear below it, in the descending process of the antitorque device power connection end of described eccentric guiding, can open hiding the thing plate, thereby make power connection end accurately dock with the electrical connection position of feeder ear, after the antitorque device of eccentric guiding is pegged graft, two ends closely cooperate mutually, when pump operation, bear the reaction torque of motor;
4) below the antitorque device of described eccentric guiding downhole control valve is installed, the antitorque device power connection end of eccentric guiding lower end is provided with control lever, and when inserting down, control lever is pushed downhole control valve open, on when carrying, control lever is carried on together, downhole control valve is closed automatically.
2. want 1 described steel wire to remove electric pump operation through tubing system according to right, it is characterized in that: the plane that the feeder ear of the antitorque device of described eccentric guiding and power connection end coincide mutually and the cross section of described tubular structure have a certain degree, and are respectively equipped with at the tube wall of the highs and lows on described plane and can make feeder ear and mutual chimeric groove and the protruding key of power connection end.
3. want 2 described steel wires to remove electric pump operation through tubing system according to right, it is characterized in that: have tip upper groove up at the coincide tube wall of peak on plane of the antitorque device power connection end of described eccentric guiding, on the tube wall of minimum point, extend tip epirelief key down downwards; Match with it, the tube wall of leading the peak of asking that the device feeder ear coincide the plane in described off-centre extends a tip following protruding key up, tube wall in minimum point has tip low groove down, and upper groove is chimeric mutually with following protruding key, and epirelief key and low groove are chimeric mutually.
4. steel wire according to claim 1 removes electric pump operation through tubing system, it is characterized in that: with the connecting portion of the power connection end plug for projection, be recessed jack with the connecting portion of feeder ear on the power connection end on the antitorque device feeder ear of described eccentric guiding.
5. steel wire according to claim 4 removes electric pump operation through tubing system, it is characterized in that: the groove on the antitorque organ pipe wall of described eccentric guiding and the height of protruding key are greater than the height of described plug and jack.
6. steel wire according to claim 1 removes electric pump operation through tubing system, it is characterized in that: described cable adopts three-phase alternating current to power to motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010535337 CN102146778B (en) | 2010-11-08 | 2010-11-08 | Through-tubing operation system for wireline pulling electric pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010535337 CN102146778B (en) | 2010-11-08 | 2010-11-08 | Through-tubing operation system for wireline pulling electric pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102146778A CN102146778A (en) | 2011-08-10 |
| CN102146778B true CN102146778B (en) | 2013-07-17 |
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| CN 201010535337 Active CN102146778B (en) | 2010-11-08 | 2010-11-08 | Through-tubing operation system for wireline pulling electric pump |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103437995B (en) * | 2013-08-13 | 2016-03-23 | 成都希能能源科技有限公司 | A kind of splicer |
| US10246960B2 (en) * | 2016-05-10 | 2019-04-02 | Saudi Arabian Oil Company | Electric submersible pump cable anchored in coiled tubing |
| CN113090209B (en) * | 2021-03-17 | 2022-08-26 | 成都叁能锐达能源科技有限公司 | Cable dropping and fishing electric pump system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2295409A (en) * | 1994-11-25 | 1996-05-29 | Scient Drilling Int | Method of making and breaking electrical connections |
| WO2005038190A1 (en) * | 2003-10-09 | 2005-04-28 | Shell Internationale Research Maatschappij B.V. | Method for interconnecting electrical conduits in a borehole |
| CN201843550U (en) * | 2010-11-08 | 2011-05-25 | 张强 | Through tubing operation system for pulling electric pump by steel wire |
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2010
- 2010-11-08 CN CN 201010535337 patent/CN102146778B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2295409A (en) * | 1994-11-25 | 1996-05-29 | Scient Drilling Int | Method of making and breaking electrical connections |
| WO2005038190A1 (en) * | 2003-10-09 | 2005-04-28 | Shell Internationale Research Maatschappij B.V. | Method for interconnecting electrical conduits in a borehole |
| CN201843550U (en) * | 2010-11-08 | 2011-05-25 | 张强 | Through tubing operation system for pulling electric pump by steel wire |
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| CN102146778A (en) | 2011-08-10 |
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