CN103775033A - Electric submersible pump driven by linear motor without moving pipe column and method - Google Patents
Electric submersible pump driven by linear motor without moving pipe column and method Download PDFInfo
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- CN103775033A CN103775033A CN201310114276.8A CN201310114276A CN103775033A CN 103775033 A CN103775033 A CN 103775033A CN 201310114276 A CN201310114276 A CN 201310114276A CN 103775033 A CN103775033 A CN 103775033A
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000007789 sealing Methods 0.000 claims abstract description 48
- 239000003129 oil well Substances 0.000 claims abstract description 47
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000005086 pumping Methods 0.000 claims abstract description 8
- 238000007689 inspection Methods 0.000 claims abstract description 5
- 210000002445 nipple Anatomy 0.000 claims description 30
- 230000000694 effects Effects 0.000 claims description 23
- 238000003032 molecular docking Methods 0.000 claims description 17
- 238000012545 processing Methods 0.000 claims description 8
- 210000000664 rectum Anatomy 0.000 claims description 8
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 125000006850 spacer group Chemical group 0.000 claims description 5
- 238000010276 construction Methods 0.000 claims description 4
- 239000007858 starting material Substances 0.000 claims description 4
- 206010059875 Device ineffective Diseases 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004873 anchoring Methods 0.000 abstract 3
- 210000001503 joint Anatomy 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 49
- 238000001514 detection method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
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Abstract
An electric submersible pump driven by a linear motor without moving a tubular column and a method thereof relate to the technical field of oil extraction in oil fields. When the pump is put down, the pumping rod is connected with the lowering mechanism, and the anti-jack, the sealing anchoring mechanism and the oil well pump are sequentially connected and then put into the well. After the sealing anchoring of the anti-jacking cam and the oil well pump and the butt joint of the plunger and the linear motor rotor are completed, the linear motor can be started to lift. When the pump needs to be inspected, the sucker rod is used for lowering the bailing device to lift the anti-jacking and sealing anchoring mechanism and the oil well pump, so that the pump inspection operation is carried out without lifting an oil pipe and a linear motor in the well. The invention has the beneficial effects that: by means of few lifting and next trip of the pipe column, the well repair operation cost is reduced, the well repair operation period is shortened, the situation that the cable is damaged possibly in the process of lifting and dropping the oil pipe is avoided, and the economic loss is reduced.
Description
Technical field
The present invention relates to oil extraction in oil field technical field, particularly linear electric motors drive the method that submersible electric pump recovers the oil, and are that a kind of fixed tubular column removes linear electric motors driving submersible electric pump and method.
Background technology
Linear electric motors drive reciprocating submersible electric pump to succeed in developing in 2004, within 2005, enter oil field and carry out field trial, perfect through the improvement of 7 years, push away factory at oil field at homes such as grand celebrations and use.This technology has China's independent intellectual property right, is international pioneering energy-saving oil extraction equipment, there is no correlation technique abroad.
Linear electric motors drive its operating principle of reciprocating submersible electric pump tubular column structure to be: linear electric motors drive reciprocating oil immersed pump top to be connected with oil pipe, bottom connects successively with linear electric motors and centralizer, slip into oil reservoir, utilize power cable by the power delivery after ground control system frequency conversion to down-hole linear motor, linear motor rotor drives connected oil pump plunger piston to pump, and realizes crude oil lifting.
At present, linear electric motors drive reciprocating submersible electric pump need propose oil pipe, linear electric motors and cable in the time of pump detection and workover, and operating cost is higher, easily causes cable bad.For this reason, the present invention takes the lead in state, inside and outside proposition and has solved linear electric motors driving reciprocating submersible electric pump fixed tubular column to carry out the problem of pump detection and workover.
Linear electric motors driving reciprocating oil immersed pump can be in field use, mainly contains the advantage of following four aspects:
1, energy-saving effect is obvious.Adopt intermittent power supply mode, average amount of electricity saving can reach more than 50%.
2, the pipe, the bar eccentric wear problem that do not have beam type sucker rod pump Lifting Technique, be more suitable for directional well, horizontal well.
3, can realize Based Intelligent Control.Can utilize in the switch board of ground and join by button adjusting, parameter adjustment is simple and convenient; If supporting long distance control system, can realize the function of remote monitoring and operation.
4, meet the requirement of environmental protection.Utilize linear electric motors to drive reciprocating oil immersed pump oil pumping not have the packing_seal problem of beam type sucker rod pump Lifting Technique, therefore also just do not have the problem of packing place leakage of oil.
Owing to having above some advantage compared with beam type sucker rod pump Lifting Technique, linear electric motors drive reciprocating oil immersed pump to be with a wide range of applications in oil field.
In current field produces, adopt insert pump can realize fixed tubular column compared with producing with other forms of oil well pump to carry out the function of pump detection and workover, can reduce like this workover treatment cost, minimizing duty cycle.The function that insert pump fixed tubular column carries out well workover is to realize by the seal anchor of insert pump, by sucker rod, oil well pump noumenal seat is encapsulated in to outer working tube.Equally, this device can be applicable to the function that linear electric motors drive reciprocating oil immersed pump to realize fixed tubular column and carry out operation.Linear electric motors drive reciprocating oil immersed pump to adopt fixed tubular column to carry out pump detection and workover need solve several problems:
1, the linear electric motors of the power resources of linear electric motors driving reciprocating oil immersed pump lifting under pump may eject outer working tube by oil well pump body in the time of upstroke, cause the inoperable problem of oil well pump.
2, how to seal reliably the problem of grappling.
3, how to transfer and the problem of bailing.
4, linear motor rotor and linear electric motors drive the problem how reciprocating oil immersed pump takes off in down-hole, connects.
At present, the linear electric motors that oil field is used drive the tubular column structure of reciprocating submersible electric pump and common tubing pump identical, in the time of inspection pump, need propose cable, oil pipe, oil well pump, linear electric motors and other downhole tools.
The shortcoming of prior art: current technology workover treatment cost compared with adopting fixed tubular column operation is relatively high, and duty cycle is longer, carries, may cause cable bad in lower tubular column process.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of fixed tubular column and remove linear electric motors driving submersible electric pump and method.
A kind of fixed tubular column removes the method for linear electric motors driving submersible electric pump, when lower pump, connect discharging mechanism by sucker rod, G.I.H after anti-top is connected successively with sealing anchor mechanism, oil well pump, complete and can start linear electric motors after the docking of the sealing grappling of anti-top cam, oil well pump and plunger and linear motor rotor and carry out lifting, in the time that needs are examined pump, utilizing sucker rod to transfer bailing device proposes anti-top and seals anchor mechanism, oil well pump, carry out pump detection and workover, do not need the linear electric motors in portable cable, oil pipe and well.
The technical solution used in the present invention is: a kind of fixed tubular column removes linear electric motors and drives submersible electric pump, comprises underground work part, throwing mechanism and bailing mechanism composition,
Throwing mechanism forms by throwing in seating nipple a, shear pin b and pressure cap 5, throws in seating nipple a and connects shear pin b and pressure cap 5; Bailing mechanism is made up of top connection c, dipper d, briquetting e, stage clip f and slips g, and top connection c connects dipper d, and dipper d connects fishing head 4, and briquetting e connects stage clip f and slips g, and slips g connects fishing head 4;
Underground work part is linear electric motors 27 and linear motor rotor 28, linear electric motors 27 connect linear electric motors centralizer 29, linear electric motors centralizer 29 is arranged in sleeve pipe 1, power cable 3 connects linear electric motors 27, linear electric motors 27 connect screen casing 26, linear motor rotor 28 connects plunger 21 by jump ring 25, the interior connection of plunger 21 move about valve ball 22 and the valve seat 23 that moves about, pump barrel 24 is connected and fixed valve seat 20 and standing valve pressed joint 18, there is fixed valve ball 19 fixed valve base 20 upper ends, the other end of standing valve pressed joint 18 connects central tube 7, central tube 7 connects packing ring 12, sealing ring 13, spacer ring 14, hold-down ring 15, jump ring 16 and baffle ring 17, outer working tube 11 connects screen casing 26, the other end connected pipes 2 of outer working tube 11, the inside of central tube 7 connects fishing head 4, pressure cap 5, spring 6, fixture block 8, cam 9 and pin 10, the mesopore of pressure cap 5 connects fishing head 4 and spring 6.
A kind of fixed tubular column removes the method for linear electric motors driving submersible electric pump, when construction, connect with sucker rod the fastener for sucker rod of throwing in seating nipple a upper end, whole devices including oil well pump are lowered to along oil pipe inside, after completing and transferring, utilize the overtravel of linear electric motors that electric mover is docked with oil pump plunger piston, after the anti-upper ejection device of judgement, the whole normal work of sealing device, above carry sucker rod shear pin b is cut off, propose sucker rod and throw in seating nipple a, completing input work.
After bailing device and fishing head 4 docking, fishing head 4 promotes slips g, make stage clip f compression, slips g moves to dipper d internal diameter larger part on step bottom, slips g bottom step internal diameter becomes large, fishing head 4 enters the inner rear compression spring f promotion of slips g slips g and moves down, and fishing head 4 successfully docks with bailing device, above carries sucker rod and can propose anti-top, sealing anchor mechanism and linear electric motors driving reciprocating submersible electric pump.
Complete in the time that oil well pump is worked and dock by jump ring, when inspection pump, throw off; The impulse stroke of linear motor rotor is 1.23m, and range can reach 1.3m, and overtravel length is 0.07m; Can utilize the overtravel of linear motor rotor to realize the docking of plunger 21 and linear motor rotor 28, while docking, utilize upwards overtravel 0.07m of electric mover, jump ring (25) is preset at the bottleneck of linear motor rotor (28), motor utilize overtravel by mover upper end to entering oil pump plunger piston (21) lower end, jump ring (25) is stressed because of limited space, external diameter diminishes, linear motor rotor (28) carries after jump ring (25) enters plunger (21) inside, lower end and opens, and finally completes docking
In the time carrying out lower pump operation, in the time that cam (9) contacts with oil pipe (2) inwall, cam (9) inwardly shrinks around pin (10) rotation under the effect of power, the upper top fixture block (8) of cam (9), fixture block (8) forces spring-compressed, now anti-top cam, sealing anchor portion can be descending smoothly along the duct, middle part of outer working tube 11; When anti-top cam, sealing anchor portion continue when descending, because channel diameter becomes large, now, under the elastic force effect of spring, cam 9 rotates around pin 10, and cam 9 positions are fixed; Meanwhile, in descending process, be greater than the latus rectum at the inner minimum diameter of outer working tube place due to the external diameter under bottom jump ring 16 natures, jump ring 16 inwardly shrinks under external force, descending under the effect of upper pressure, in the time coming downwards to the larger latus rectum of diameter place, jump ring 16 recovers shape under self elastic force effect, completes the grappling of oil well pump, plays restriction and take out the effect of the axially-movable of pump barrel in oil pumping process; Sealing ring plays sealing function, prevents on pump under flow direction pump; In the time that oil well pump has upper top trend, position-limiting action can play in this mechanism, avoids it to deviate from outer working tube, and assurance oil well pump is normally worked.
Beneficial effect of the present invention: thereby by carrying less, lower one-trip string realizes and reducing costs, and reduces the workover treatment cycle; The situation of the cable bad that avoided carrying, lower oil pipe may cause occurs, and reduces economic loss.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by the detailed description with reference to below, can more completely understand better the present invention and easily learn wherein many advantages of following, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention, as schemed wherein:
Fig. 1 is that the linear electric motors that the present invention adopts drive reciprocating oil immersed pump tubular column structure schematic diagram.
Fig. 2 is throwing mechanism schematic diagram.Throw in seating nipple a; Shear pin b;
Fig. 3 is bailing structural scheme of mechanism.Joint C; Dipper d; Briquetting e; Stage clip f; Slips g;
Fig. 4 is that down-hole linear motor drives the anti-top of reciprocating oil immersed pump and sealing anchor mechanism schematic diagram.
Fig. 5 is anti-top cam, sealing anchor portion schematic diagram.
Fig. 6 is that down-hole is de-, connection mechanism schematic diagram.
Below in conjunction with drawings and Examples, the present invention is further described.
The specific embodiment
Obviously the many modifications and variations that, those skilled in the art do based on aim of the present invention belong to protection scope of the present invention.
Embodiment 1: as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, function of the present invention realizes by following several part bodies: throwing mechanism forms by throwing in seating nipple a, shear pin b and pressure cap 5, throw in seating nipple a and connect shear pin b and pressure cap 5, bailing mechanism is made up of top connection c, dipper d, briquetting e, stage clip f and slips g, top connection c connects dipper d, dipper d connects fishing head 4, and briquetting e connects stage clip f and slips g, and slips g connects fishing head 4.
Linear electric motors 27 and linear motor rotor 28, linear electric motors 27 connect linear electric motors centralizer 29, and linear electric motors centralizer 29 is arranged in sleeve pipe 1, and power cable 3 connects linear electric motors 27, and linear electric motors 27 connect screen casing 26.
Underground work part is linear electric motors 27 and linear motor rotor 28, linear electric motors 27 connect linear electric motors centralizer 29, linear electric motors centralizer 29 is arranged in sleeve pipe 1, power cable 3 connects linear electric motors 27, linear electric motors 27 connect screen casing 26, linear motor rotor 28 connects plunger 21 by jump ring 25, the interior connection of plunger 21 move about valve ball 22 and the valve seat 23 that moves about, the other end of standing valve pressed joint 18 connects central tube 7, central tube 7 connects packing ring 12, sealing ring 13, spacer ring 14, hold-down ring 15, jump ring 16 and baffle ring 17, outer working tube 11 connects screen casing 26, the other end connected pipes 2 of outer working tube 11, the inside of central tube 7 connects fishing head 4, pressure cap 5, spring 6, fixture block 8, cam 9 and pin 10, the mesopore of pressure cap 5 connects fishing head 4 and spring 6.
Embodiment 2: as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, fixed tubular column removes linear electric motors and drives submersible electric pump and method,
Throwing mechanism: seating nipple a is connected by shear pin b with pressure cap 5.
Bailing mechanism: transfer after being connected with sucker rod by screw thread from oil pipe on top connection c top, under sucker rod Action of Gravity Field, it is up along the inner conical surface of dipper d that the fishing head 4 top conical surfaces promote slips g, spring is compressed, in the time that the distance of two lobe slips reaches certain value, under the effect of spring force, will under slips g, be pushed into the position shown in Fig. 3, fishing head 4 successfully docks with bailing device, slips g pins fishing head 4, carries sucker rod on now can realize bailing.
Down-hole linear motor drives the anti-top of reciprocating oil immersed pump and sealing anchor mechanism; This mechanism is made up of anti-top cam, sealing anchor portion Fig. 5 and outer working tube 11,
By the outer working tube shown in Fig. 1 11 with oil pipe G.I.H precalculated position.The pressure cap 5 of the anti-top cam shown in Fig. 5, sealing anchor portion is connected by shear pin with input seating nipple a, and lower thread is lowered to oil pipe after being connected with oil well pump top screw thread.
In the time carrying out lower pump operation, in the time that cam 9 contacts with oil pipe 2 inwalls, cam 9 inwardly shrinks around pin 10 rotations under the effect of power, top fixture block 8 on cam 9, fixture block 8 forces spring-compressed, now the anti-top cam shown in Fig. 5, sealing anchor portion can be descending smoothly along the duct, middle part of outer working tube 11.In the time that the anti-top cam shown in Fig. 5, sealing anchor portion continue to come downwards to the position shown in Fig. 4, because channel diameter becomes large, now, under the elastic force effect of spring, cam 9 rotates to shown position around pin 10, and cam 9 positions are fixed.Meanwhile, in descending process, be greater than the latus rectum at the inner minimum diameter of the outer working tube shown in Fig. 4 place due to the external diameter under bottom jump ring 16 natures, jump ring 16 inwardly shrinks under external force, descending under the effect of upper pressure, in the time coming downwards to the larger latus rectum of the diameter shown in Fig. 5 place, jump ring 16 recovers shape under self elastic force effect, completes the grappling of oil well pump, plays the effect of the axially-movable of restriction oil pumping barrel in oil pumping process.Sealing ring 13 plays sealing function, prevents on pump under flow direction pump.In the time that oil well pump has upper top trend, this device can play position-limiting action, avoids it to deviate from outer working tube, and assurance oil well pump is normally worked.
In the time that needs are examined pump, on carry fishing head 4 and fixture block 8 is compressible spring 6, when carrying on fixture block 8 when above to cam 9, cam 9 rotates to seating nipple inside around pin 10 under Gravitative Loads, now the anti-top cam shown in Fig. 6, sealing anchor portion and bottom oil well pump can be carried to ground.
Oil well pump and linear electric motors are de-, connection mechanism.As shown in Figure 6.This mechanism is made up of plunger 21, jump ring 25 and linear motor rotor 28.
Linear electric motors drive reciprocating submersible electric pump with sealing and anchor portion G.I.H, and after having completed sealing, grappling, the position of pump is determined thereupon.The impulse stroke of linear motor rotor is 1.23m, and range can reach 1.3m, and overtravel length is 0.07m.Can utilize the overtravel of linear motor rotor to realize the docking of plunger and linear motor rotor.
Embodiment 3: as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, fixed tubular column removes linear electric motors and drives submersible electric pump, comprises underground work part, throwing mechanism and bailing mechanism composition,
Underground work part is by sleeve pipe 1, oil pipe 2, power cable 3, fishing head 4, pressure cap 5, spring 6, central tube 7, fixture block 8, cam 9, pin 10, outer working tube 11, packing ring 12, sealing ring 13, spacer ring 14, hold-down ring 15, jump ring 16, baffle ring 17, standing valve pressed joint 18, fixed valve ball 19, fixed valve base 20, plunger 21, valve ball 22 moves about, valve seat 23 moves about, pump barrel 24, jump ring 25, screen casing 26, linear electric motors 27, linear motor rotor 28 and linear electric motors centralizer 29 form, throwing mechanism forms by throwing in seating nipple a, shear pin b and pressure cap 5, bailing mechanism is made up of top connection c, dipper d, briquetting e, stage clip f and slips g.
There are throwing mechanism, bailing mechanism, down-hole uncoupling mechanism, anti-top and sealing anchor mechanism, bailing and throw in the parts such as technique:
Throwing mechanism: throwing mechanism forms by throwing in seating nipple a, shear pin b and pressure cap 5.Throwing in seating nipple a is connected by shear pin b with pressure cap 5, when construction, connect with sucker rod the fastener for sucker rod of throwing in seating nipple a upper end, send the whole devices including oil well pump to oil pipe inside, after completing and transferring, utilize the overtravel of linear electric motors that electric mover is docked with oil pump plunger piston, after the anti-upper ejection device of judgement, the whole normal work of sealing device, above carry sucker rod shear pin b is cut off, propose sucker rod and throw in seating nipple a, completing input work.
Throwing mechanism: throwing mechanism forms by throwing in seating nipple a, shear pin b and pressure cap 5, throwing in seating nipple a is connected by shear pin b with pressure cap 5, when construction, connect with sucker rod the fastener for sucker rod of throwing in seating nipple a upper end, send the whole devices including oil well pump to oil pipe inside, after completing and transferring, utilize the overtravel of linear electric motors that electric mover is docked with oil pump plunger piston, after the anti-upper ejection device of judgement, the whole normal work of sealing device, on carry sucker rod shear pin b cut off, propose sucker rod and throw in seating nipple a, completing input work.
Bailing mechanism: bailing mechanism is made up of top connection c, dipper d, briquetting e, stage clip f and slips g.When bailing device and fishing head 4 dock, fishing head 4 promotes slips g, make stage clip f compression, slips g moves to dipper d internal diameter larger part on step bottom, slips g bottom step internal diameter becomes large, fishing head 4 enters the inner rear compression spring f promotion of slips g slips g and moves down, and fishing head 4 successfully docks with bailing device, and slips g pins fishing head 4; Now, above carry sucker rod and remove oil well pump grappling and make anti-ejection device ineffective, can propose anti-top, down-hole and sealing anchor mechanism, linear electric motors driving reciprocating submersible electric pump.
Down-hole is de-, connection mechanism: down-hole is de-, connection mechanism is made up of plunger 21, jump ring 25 and linear motor rotor 28.This body function completes by jump ring, in the time that oil well pump is worked, docks, and when inspection pump, throws off.The impulse stroke of linear motor rotor is 1.23m, and range can reach 1.3m, and overtravel length is 0.07m.Can utilize the overtravel of linear motor rotor to realize the docking of plunger 21 and linear motor rotor 28, while docking, utilize upwards overtravel 0.07m of electric mover, jump ring (25) is preset at the bottleneck of linear motor rotor (28), motor utilize overtravel by mover upper end to entering oil pump plunger piston (21) lower end, jump ring (25) is stressed because of limited space, external diameter diminishes, linear motor rotor (28) carries after jump ring (25) enters plunger (21) inside, lower end and opens, and finally completes docking.
Anti-top and sealing anchor mechanism: anti-top and sealing anchor mechanism are made up of fishing head 4, pressure cap 5, spring 6, central tube 7, fixture block 8, cam 9, pin 10, outer working tube 11, packing ring 12, sealing ring 13, spacer ring 14, hold-down ring 15, jump ring 16 and baffle ring 17.In the time carrying out lower pump operation, in the time that cam (9) contacts with oil pipe (2) inwall, cam (9) inwardly shrinks around pin (10) rotation under the effect of power, the upper top fixture block (8) of cam (9), fixture block (8) forces spring-compressed, now anti-top cam, sealing anchor portion can be descending smoothly along the duct, middle part of outer working tube 11; When anti-top cam, sealing anchor portion continue when descending, because channel diameter becomes large, now, under the elastic force effect of spring, cam 9 rotates around pin 10, and cam 9 positions are fixed.Meanwhile, in descending process, be greater than the latus rectum at the inner minimum diameter of the outer working tube shown in Fig. 4 place due to the external diameter under bottom jump ring 16 natures, jump ring 16 inwardly shrinks under external force, descending under the effect of upper pressure, in the time coming downwards to the larger latus rectum of the diameter shown in Fig. 4 place, jump ring 16 recovers shape under self elastic force effect, completes the grappling of oil well pump, plays restriction and take out the effect of the axially-movable of pump barrel in oil pumping process.Sealing ring 13 plays sealing function, prevents on pump under flow direction pump.In the time that oil well pump has upper top trend, position-limiting action can play in this mechanism, avoids it to deviate from outer working tube, and assurance oil well pump is normally worked.
Embodiment 4: as shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6:
Fixed tubular column removes a method for linear electric motors driving submersible electric pump, throws in processing step:
Step 1: on ground, jump ring 25 is preset to the bottleneck shown in Fig. 6 of linear motor rotor 28, for linear motor rotor docks and prepares with oil well pump.
Step 2: drive reciprocating submersible electric pump to be connected by screw thread anti-top cam, sealing anchor portion and linear electric motors; Main purpose is the bailing that guarantees oil well pump, the anti-upper enforcement of grappling function in down-hole of pushing up, seal.
Step 3: input seating nipple a and pressure cap 5 are fixed by shown in Fig. 2 by shear pin b, guarantee effective connection of delivery device and oil well pump and relevant servicing unit thereof, input work is carried out in preparation.
Step 4: linear electric motors centralizer 29, linear electric motors 27, screen casing 26, outer working tube 11 and oil pipe 2 are connected to G.I.H successively, and power cable 3 is together lowered to oil pipe.
Step 5: input seating nipple a top and sucker rod are threaded connection to rear G.I.H, complete the sealing shown in Fig. 4, grappling, complete the work that is lowered to of oil well pump and fixture by this processing step.
Step 6: above carry sucker rod shear pin is cut off, propose sucker rod and throw in seating nipple a, complete oil well pump and throw in processing step.
Step 7: starter motor, the docking that completes plunger 21 and linear motor rotor 28 can enter production.
Step 8: bailing processing step:
Step 8.1: starter motor, linear motor rotor 28 is deviate to plunger 21, also can carry above sucker rod and complete the two disengagement.
Step 8.2: utilize sucker rod by the bailing mechanism G.I.H shown in Fig. 3, complete the docking of bailing mechanism and fishing head 4.
Step 8.3: above carry sucker rod, can propose oil well pump after making anti-top divide ineffective, jump ring 16 inwardly to shrink to remove grappling, complete bailing technique.
As mentioned above, embodiments of the invention are explained, but as long as not departing from fact inventive point of the present invention and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, within such variation is also all included in protection scope of the present invention.
Claims (3)
1. fixed tubular column removes linear electric motors and drives a reciprocating submersible electric pump, it is characterized in that comprising underground work part, throwing mechanism and bailing mechanism composition.
Throwing mechanism forms by throwing in seating nipple, shear pin and pressure cap, throwing in seating nipple is connected by shear pin with pressure cap, throw on seating nipple and connect sucker rod, bailing mechanism is made up of top connection, dipper, briquetting, stage clip and slips, top connection top is connected with sucker rod, lower end connects dipper, joins successively at the inner briquetting of dipper, stage clip and slips.
Underground work part is linear electric motors and linear motor rotor, linear electric motors bottom connects linear electric motors centralizer, linear electric motors centralizer is anchored on linear electric motors in sleeve pipe, linear electric motors upper end is connected with screen casing, on screen casing, connect outer working tube, outer working tube upper end is connected with oil pipe, and power cable connects the electrical control cubicles on linear electric motors and ground.
Linear motor rotor is connected with plunger by jump ring, connects move about valve ball and the valve seat that moves about in plunger; The upper end of pump barrel is connected and fixed valve seat and standing valve pressed joint, fixed valve ball is equipped with in the inside of fixed valve base and standing valve pressed joint, the other end of standing valve pressed joint connects central tube, central tube connects packing ring, sealing ring, spacer ring, hold-down ring, jump ring and baffle ring, outer working tube connects screen casing, the other end connected pipes of outer working tube, the top of central tube is connected with pressure cap, be connected successively at inner fishing head, spring, fixture block, cam and pin, the mesopore of pressure cap connects fishing head and spring.
2. a fixed tubular column removes linear electric motors and drives the method for submersible electric pump, it is characterized in that: when construction, connect with sucker rod the fastener for sucker rod of throwing in seating nipple (a) upper end, whole devices including oil well pump are lowered to from oil pipe inside, complete after grappling, utilize the overtravel of linear electric motors that electric mover is docked with oil pump plunger piston, after the anti-upper ejection device of judgement, the whole normal work of sealing device, on carry sucker rod shear pin (b) cut off, propose sucker rod and throw in seating nipple (a), completing input work.
When bailing device and fishing head (4) docking, fishing head (4) promotes slips (g), make stage clip (f) compression, slips (g) moves to dipper (d) internal diameter larger part on step bottom, slips (g) bottom step internal diameter becomes large, fishing head (4) enters the inner rear compression spring of slips (g) (f) promotion slips (g) and moves down, slips (g) pins fishing head (4), and fishing head (4) successfully docks with bailing device; Now, above carrying sucker rod makes anti-ejection device ineffective and remove and after oil well pump grappling, oil pump plunger piston (21) and linear motor rotor (28) are thrown off, can propose anti-top, down-hole and sealing anchor mechanism, reciprocating oil immersed pump.
By down-hole take off, connection mechanism completes in the time that oil well pump is worked and docks, and when inspection pump, throws off, the impulse stroke of linear motor rotor is 1.23m, range can reach 1.3m, overtravel length is 0.07m; Can utilize the overtravel of linear motor rotor to realize the docking of plunger (21) and linear motor rotor (28), the 0.07m overtravel of utilizing electric mover to move upward while docking, jump ring (25) is preset at the bottleneck of linear motor rotor (28), motor utilize overtravel by mover upper end to entering oil pump plunger piston (21) lower end, jump ring (25) is because limited space and variable force, external diameter diminishes, linear motor rotor (28) carries after jump ring (25) enters plunger (21) inside, lower end and opens, and finally completes docking.
In the time carrying out lower pump operation, in the time that cam (9) contacts with oil pipe (2) inwall, cam (9) inwardly shrinks around pin (10) rotation under the effect of power, the upper top fixture block (8) of cam (9), fixture block (8) forces spring-compressed, now anti-top cam, sealing anchor portion can be descending smoothly along the duct, middle part of outer working tube (11), when anti-top cam, sealing anchor portion continue when descending, because channel diameter becomes large, now, under the elastic force effect of spring, cam (9) is around pin (10) rotation, and cam (9) position is fixed, meanwhile, in descending process, be greater than the latus rectum at the inner minimum diameter of outer working tube place due to the external diameter under bottom jump ring (16) nature, jump ring (16) inwardly shrinks under external force, descending under the effect of upper pressure, in the time coming downwards to the larger latus rectum of diameter place, jump ring (16) recovers shape under self elastic force effect, complete the grappling of oil well pump, play the effect of the axially-movable of restriction oil pumping barrel in oil pumping process, sealing ring (13) plays sealing function, prevent on pump under flow direction pump, in the time that oil well pump has upper top trend, position-limiting action can play in this mechanism, avoid it to deviate from outer working tube, assurance oil well pump is normally worked.
3. a kind of fixed tubular column according to claim 2 removes the method for linear electric motors driving submersible electric pump, it is characterized in that:
Throw in processing step:
1), ground by jump ring (25) be preset at linear motor rotor (28) shown in bottleneck, for linear motor rotor docks and prepares with oil well pump;
2), drive reciprocating submersible electric pump to be connected by screw thread anti-top cam, sealing anchor portion and linear electric motors; Guarantee the bailing of oil well pump, the anti-upper enforcement of grappling function in down-hole of pushing up, seal;
3), will throw in seating nipple (a) and pressure cap (5) is fixed by shear pin (b), guarantee effective connection of delivery device and oil well pump and relevant servicing unit thereof, input work is carried out in preparation;
4), successively by linear electric motors centralizer (29), linear electric motors (27), screen casing (26), outer working tube (11) and oil pipe (2) G.I.H, power cable (3) is together lowered to oil pipe;
5), will throw in seating nipple (a) top and sucker rod is threaded connection rear G.I.H, complete sealing, grappling, complete the work that is lowered to of oil well pump and fixture by this processing step;
6), on carry sucker rod shear pin cut off, propose sucker rod and throw in seating nipple (a), complete oil well pump and throw in processing step;
7), starter motor, the docking that completes plunger (21) and linear motor rotor (28) can enter production;
Bailing processing step:
1), starter motor, linear motor rotor (28) is deviate to plunger (21), also can carry above sucker rod and complete the two disengagement;
2), utilize sucker rod by bailing mechanism G.I.H, complete the docking of bailing mechanism and fishing head (4);
3), on carry sucker rod, after making anti-top divide ineffective, jump ring (16) inwardly to shrink to remove grappling, oil well pump can be proposed, complete bailing technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310114276.8A CN103775033B (en) | 2013-04-03 | 2013-04-03 | Electric submersible pump driven by linear motor without moving pipe column and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310114276.8A CN103775033B (en) | 2013-04-03 | 2013-04-03 | Electric submersible pump driven by linear motor without moving pipe column and method |
Publications (2)
| Publication Number | Publication Date |
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| CN103775033A true CN103775033A (en) | 2014-05-07 |
| CN103775033B CN103775033B (en) | 2017-02-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434668A (en) * | 2021-06-02 | 2022-12-06 | 中国石油天然气股份有限公司 | Submersible electric plunger pump and throwing process and bailing process thereof |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6322331B1 (en) * | 1998-11-10 | 2001-11-27 | Baker Hughes Incorporated | Tubular junction for tubing pump |
| US20020050361A1 (en) * | 2000-09-29 | 2002-05-02 | Shaw Christopher K. | Novel completion method for rigless intervention where power cable is permanently deployed |
| CN1563715A (en) * | 2004-04-21 | 2005-01-12 | 王善政 | Electrical submersible, permanent-magnet straight reciprocating pump |
| CN1664368A (en) * | 2005-04-05 | 2005-09-07 | 大庆油田有限责任公司 | Small displacement high lift reciprocating submersible electric pump |
| CN1746499A (en) * | 2005-07-26 | 2006-03-15 | 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 | Lifter of linear motor with double action for reciprocating pump |
| CN1900521A (en) * | 2005-07-21 | 2007-01-24 | 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 | Fishable linear motor reciprocating pump |
| CN2903473Y (en) * | 2006-05-29 | 2007-05-23 | 大庆油田有限责任公司 | Reciprocating dual action oil-submersible electric pump |
| CN200943573Y (en) * | 2006-08-31 | 2007-09-05 | 大庆油田有限责任公司 | Reciprocating type submersible electric pump oil extraction device |
| CN201412313Y (en) * | 2009-06-12 | 2010-02-24 | 沈阳新城石油机械制造有限公司 | Reciprocating precession type oil-submersible electric pump |
-
2013
- 2013-04-03 CN CN201310114276.8A patent/CN103775033B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6322331B1 (en) * | 1998-11-10 | 2001-11-27 | Baker Hughes Incorporated | Tubular junction for tubing pump |
| US20020050361A1 (en) * | 2000-09-29 | 2002-05-02 | Shaw Christopher K. | Novel completion method for rigless intervention where power cable is permanently deployed |
| CN1563715A (en) * | 2004-04-21 | 2005-01-12 | 王善政 | Electrical submersible, permanent-magnet straight reciprocating pump |
| CN1664368A (en) * | 2005-04-05 | 2005-09-07 | 大庆油田有限责任公司 | Small displacement high lift reciprocating submersible electric pump |
| CN1900521A (en) * | 2005-07-21 | 2007-01-24 | 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 | Fishable linear motor reciprocating pump |
| CN1746499A (en) * | 2005-07-26 | 2006-03-15 | 中国石油化工股份有限公司河南油田分公司石油工程技术研究院 | Lifter of linear motor with double action for reciprocating pump |
| CN2903473Y (en) * | 2006-05-29 | 2007-05-23 | 大庆油田有限责任公司 | Reciprocating dual action oil-submersible electric pump |
| CN200943573Y (en) * | 2006-08-31 | 2007-09-05 | 大庆油田有限责任公司 | Reciprocating type submersible electric pump oil extraction device |
| CN201412313Y (en) * | 2009-06-12 | 2010-02-24 | 沈阳新城石油机械制造有限公司 | Reciprocating precession type oil-submersible electric pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115434668A (en) * | 2021-06-02 | 2022-12-06 | 中国石油天然气股份有限公司 | Submersible electric plunger pump and throwing process and bailing process thereof |
| CN115434668B (en) * | 2021-06-02 | 2024-05-28 | 中国石油天然气股份有限公司 | Submersible electric plunger pump and throwing process and bailing process thereof |
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|---|---|
| CN103775033B (en) | 2017-02-08 |
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