CN106761536B - A kind of pumpingh well downhole hardware - Google Patents
A kind of pumpingh well downhole hardware Download PDFInfo
- Publication number
- CN106761536B CN106761536B CN201611133510.1A CN201611133510A CN106761536B CN 106761536 B CN106761536 B CN 106761536B CN 201611133510 A CN201611133510 A CN 201611133510A CN 106761536 B CN106761536 B CN 106761536B
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- cone
- brake pad
- spring
- central tube
- anchor cylinder
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- 238000012856 packing Methods 0.000 claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- 239000003129 oil well Substances 0.000 abstract description 19
- 238000007689 inspection Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 15
- 238000004873 anchoring Methods 0.000 abstract description 13
- 239000012530 fluid Substances 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 11
- 239000007788 liquid Substances 0.000 abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 10
- 238000011084 recovery Methods 0.000 abstract description 6
- 239000007921 spray Substances 0.000 abstract description 5
- 238000005086 pumping Methods 0.000 description 16
- 230000000694 effects Effects 0.000 description 7
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000002265 prevention Effects 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000037396 body weight Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000012913 prioritisation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/12—Packers; Plugs
- E21B33/127—Packers; Plugs with inflatable sleeve
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (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)
- Earth Drilling (AREA)
Abstract
The present invention provides a kind of pumpingh well downhole hardware, including transit joint（1）, central tube（9）, top connection（3）, packing element（4）, upper cone（5）, anchor cylinder（7）, lower cone（10）, screw shell（15）, upper valve body（2）, upper valve ball（17）, valve ball spring（18）, lower valve ball（19）, block teeth（6）, block teeth spring（8）, big brake pad（12）, big brake pad spring（13）, small brake pad（14）With small brake pad spring（20）Solve the problems, such as that high pressure oil wells inspection pump sump liquid earthward sprays and spoils over, well site is caused to pollute, by the anchoring of oil pump tubing string, clear cured hot wash water seal every let out tubing string fluid under, inspection pump process, control high pressure oil wells inspection pump oil liquid is sprayed and spoiled over etc., and functions are integrated in one, realization is disposably launched with tubing string goes into the well, and is not necessarily to when inspection pumps with pump gug, full production cycle underground military service process, effectively reduce cargo handling operation, shorten the number of working processes, save oil recovery production cost, improves oil recovery production efficiency.
Description
Technical field
The present invention relates to a kind of oil field pumping well downhole hardware, more particularly to one kind having tubing string anchoring concurrently, prevents wax removal heat
Wash water pours into the pumpingh well downhole hardware of oil reservoir and blowout prevention and oil draining function.
Background technology
Currently, oil extraction in oil field production in anchoring pumping pipe string, tripping in packer solar heat protection wash water into oil reservoir, installation bleeder and
The operations such as preventer are all respectively to use single technique, multi-process complete independently mostly, even need to repeatedly play lower tubular column sometimes, apply
Work process is more, and duty cycle is long, and downhole tool is of high cost.Patent of invention CN201410702656.8 discloses " a kind of to have three
The tubing anchor of weight function ", the tubing anchor let out function and are integrated in one by anchoring string, every oil sealing layer and fluid time, and multi-process is made to grasp
Work is completed in a tubing string distributing procedure, is improved work efficiency, is saved production cost, it is easy to solve tubing load alternation
It causes to thread off or fracture, hot wash water pollution oil reservoir reduces oil well liquid-producing ability, inspection pumps up tubing string oil pipe inner fluid and brings to ground dirt
The problems such as contaminating environment.But this kind of tubing anchor when examining and pumping is gone into the well and rises out with oil well pump, does not have blowout prevention function, is prevented
Pollution is only limited to the well of no blowing ability, in the roads the well liquid Guo Hui well in tubing string.For the higher oil well of formation pressure, remove
Well liquid is sprayed and spoiled over the problem of causing well site to pollute to ground under pressure when tubing string, also new process is needed to be resolved.
Invention content
The present invention provides a kind of pumping for having tubing string anchoring concurrently, hot wash water being prevented to pour into oil reservoir and blowout prevention and oil draining function
Oil well device, solve oil well inspection pump up lower tubular column during, high pressure oil wells well liquid spray and spoil over ground cause well site pollute ask
The anchoring of pumpingh well tubing string, clear cured hot wash water seal are let out tubing string inner fluid, control high pressure oil by topic under, inspection pumps up during tubing string
The well inspection pump oil liquid functions such as spray and spoil over are integrated in one, and the downhole hardware realizes after once going into the well with oil well pump just resident underground,
Again without needing to change when pump detection and workover, after the pumping pipe string of new tripping in is inserted into, function is as before.
The pumpingh well underground dress for having tubing string anchoring concurrently, hot wash water being prevented to pour into oil reservoir and blowout prevention and oil draining function
It sets, including：Transit joint 1, central tube 9 are set in top connection 3 on 9 outer wall of the central tube, packing element 4, upper cone 5, anchor cylinder
7, lower cone 10, screw shell 15, be set to the valve opening main body 2 inside the central tube 9, upper valve ball 17, valve ball spring 18, under
Valve ball 19, the block teeth 6 and block teeth spring 8 being embedded in inside the anchor cylinder 7, the big brake pad 12 being embedded in the lower cone 10
With big brake pad spring 13, and it is set to small brake pad 14 and small brake pad spring 20 inside the valve opening main body 2.
The top connection 3 is threadedly coupled with 9 upper end of central tube, the packing element 4 be set to top connection 3 and 5 body of epicone it
Between, the anchor cylinder 7 is placed between centrum 5 and lower cone 10, and anchor cylinder 7 is equipped with several windowings, and the block teeth 6 are equipped with and anchor cylinder
7 matched card slots 23, front are equipped with anchor tooth 24, and rear portion has the ramp and lower inclined plane towards inside, the anchor tooth 24 of block teeth 6
It is protruded from 7 windowings of anchor cylinder, block teeth spring 8 is placed in the card slot 23 between anchor cylinder 7 and block teeth 6, under the upper cone 5
There is the lower inclined plane towards outside, the top of lower cone 10 to have the ramp towards outside, the lower part of upper cone 5 and lower cone in portion
The top of body 10 is respectively protruding among anchor cylinder 7, the ramp on lower inclined plane and lower cone 10 on upper cone 5 respectively with block teeth 6
The ramp and lower inclined plane at rear portion form cooperation, are inlaid with big brake pad 12 in the lower cone 10, the big brake pad 12 by
Big brake pad spring 13 supports, and so that big brake pad 12 is protruded from the side surface windowing of lower cone 10, the screw shell 15 is set
It is placed in the lower part of lower cone 10, is threadedly coupled with lower cone 10, while being fixed on central tube 9 by shear pin 16.
The fit structures of the anchor cylinder 7 and block teeth 6 as shown in Fig. 2, the windowing on anchor cylinder 7 circumferentially, the block teeth 6
Mutual corresponding number row is axially may be designed as in conjunction with institute's windowing, circumferentially may be designed as mutual corresponding multiple row, the tool of row and row
Body quantity can determine that, to meet oil recovery production requirement, the present invention preferably ties according to oil well specifications parameter and pumping unit performance parameter
Structure is axial 2 rows, often arranges 4~6 row of circumferentially windowing, circumferentially, 6 respective design of block teeth is matched at 7 structure of anchor cylinder
Planform.
The outer circle platform convex that 9 outer wall of the central tube is equipped with plays 25, and outer circle platform convex, which plays 25, to be terminated in production of recovering the oil,
Release in anchoring process, when cutting shear pin 16, the outer circle platform convex 25 can support be socketed on 9 outer wall of central tube under
The accessories such as cone 10, anchor cylinder 7, block teeth 6, upper cone 5 and packing element 4, make device of the present invention when salvaging well with fishing anchor, keep away
Exempt from above-mentioned accessory to slip, lose in oil well.
The inner surface of the transit joint 1 is threadedly coupled with valve opening main body 2, and outer surface is socketed with top connection 3, is used simultaneously
Mechanical means or chemical adhesive mode make transit joint 1 form connection with top connection 3, have the technical effect that：Transition should be made to connect
Radially there is the ability for transmitting torque power between first 1 and top connection 3, make axial can bear more than apparatus of the present invention certainly again
The gravity of body weight is gone into the well with ensureing that apparatus of the present invention can be delivered with tubing string, while can also pass through the conventional skill for production of recovering the oil
Art, such as drawing and mechanical cutting both make to be mutually disengaged in underground, the preferred shear pin of the present invention fix as transit joint 1 with
The connection type of top connection 3 cuts shear pin 22 when inspection pumps up tubing string, transit joint 1 and top connection 3 is made to be mutually disengaged, incited somebody to action
It crosses connector and valve opening main body 2 proposes oil well.
Wherein：The purpose that transit joint 1 and top connection 3 transmit torque power is set to be that, by the rotation of oil well pipe, will turn round
Square power, through top connection 3, central tube 9, is transmitted on screw shell 15 by transit joint 1, drives screw shell 15 to rotate, then pass through
Screw shell 15 and the threaded connection relation of lower cone 10 are converted, and push lower cone 10 to be moved up with respect to central tube 9, block teeth 6
It is squeezed by upper cone 5 and lower cone 10 by the upper lower inclined plane at rear portion and generates radial displacement, make the anchor teeth 24 of block teeth 6 from anchor cylinder 7
It is further protruded at institute's windowing, by the 24 secured clasping of anchor tooth on the borehole wall, plays the role of being anchored pumping pipe string.Meanwhile
In power transmission process, anchor cylinder 7, block teeth 6 and upper cone 5 will also be pushed by lower cone 10 and be moved up, and be placed in upper cone 5 and above be connect
Packing element 4 between first 3 will be compressed axially, to make its generation be radially expanded, by the space between central tube 9 and well bore wall
It is filled up completely, generates annular packoff effect.
The packing element 4 is preferably made of more piece.
9 inner wall of the central tube is equipped with the first inner circle platform convex 26 and the second inner circle platform convex plays 28 and discontinuous circle
Platform convex plays 27, and the upper valve ball 17 is placed in the lower part that the first inner circle platform convex plays 26, plays 26 formation ball valves with the first inner circle platform convex and matches
It closes, the lower valve ball 19 is placed in the top that the second inner circle platform convex plays 28, and playing 28 with the second inner circle platform convex forms ball valve cooperation, described
Ball valve spring 18 is placed on discontinuous round platform protrusion 27, and upper end is supported on the lower part of upper ball valve 17, discontinuous round platform protrusion 27
Effect be sustaining ball valve spring 18, when using discontinuous bulge-structure being higher in order to avoid well pressure, once punching makes on fluid
Lower valve ball 19 is in contact with discontinuous round platform protrusion 27 the case where causing fluid course to be blocked, and remains oil recovery production
Tubing string fluid course is smooth in the process, ensures production of recovering the oil.The valve opening main body 2 is mounted in central tube 9, valve opening main body 2
Upper end is provided with liquid-passing hole 29, and upper end center axis is equipped with mandril 21, and valve opening main body 2 is internally provided with small brake pad 14 and small
Brake pad spring 20, have in valve opening main body wall with the 14 matched windowing of small brake pad, in the support of small brake pad spring 20
Under, small brake pad 14 is protruded from institute's windowing, and frictional fit, the valve opening main body 2 and upper valve ball 17 are formed with 9 inner wall of central tube
End circumferentially several uniformly distributed liquid-passing holes 30 of one end are contacted, as shown in figure 3, the liquid-passing hole 30 and the upper end
Liquid-passing hole 29 constitutes the fluid course in valve opening main body 2.
Since device long-term work is possible to wax deposition or the attached dead oil of product on underground, device, when influencing that future, solution closed out
Reliability of Microprocessor, optimization design big spring 11 in apparatus structure according to the present invention, the big spring 11 are set with thus
In on the outer wall of lower cone 10, it is located at below anchor cylinder 7, effect, when cutting shear pin 16, is socketed in releasing anchoring process
In components such as lower cone 10, anchor cylinder 7, block teeth 6, upper cone 5 and packing elements 4 on 9 outer wall of central tube by wax deposition or dead oil resistance shadow
It rings, when only being difficult to fall in place by its own gravity, what big spring 11 can be put aside by spring compressive deformation in anchoring process
Elastic potential energy imposes additional elasticity tension to above-mentioned displacement reset components, promotees its reset, releases anchoring, for smoothly fishing in the future
Go out apparatus of the present invention to be ready.
The side wall of the top connection 3 is provided with liquid-passing hole 31, and effect is：In oilfield process, the well in central tube 9
Liquid energy enough overflows central tube 9 by the liquid-passing hole 31, to reflect dynamic oil level in oil sets annular space, calculates oil pumping life
Flowing pressure when production.
The beneficial effects of the invention are as follows：The present invention provide one kind have concurrently tubing string anchoring, prevent hot wash water pour into oil reservoir and
The device is anchored on pit shaft by the pumpingh well downhole hardware of blowout prevention and oil draining function, when lower pump, passes through and upper ball valve 17 is arranged, solution
The problem of well liquid earthward sprays and spoils over, well site is caused to pollute when high pressure oil wells of having determined inspection pump, when the anchoring of oily tubing string, prevention is clear cured
Hot wash water pours into oil reservoir, tubing string inner fluid is let out in inspection under pumping up during column, control high pressure oil wells inspection pump when fluid the functions such as spray and spoil over
It is integrated in one, by the structure design of transit joint 1, the invention device is made to realize disposably to launch with tubing string and go into the well, inspection pump
Shi Wuxu effectively reduces cargo handling operation, shortens the number of working processes, so as to big with pump gug full production cycle underground is on active service
Amount saves oil recovery production cost, improves oil recovery production efficiency.
Description of the drawings
Fig. 1 apparatus of the present invention structural schematic diagrams.
Fig. 2 Fig. a kind anchor cylinders and block teeth fit structure partial enlarged view.
Fig. 3 valve opening lower body head circumferential direction fluid-through port schematic diagrames.
Specific embodiment
Below by taking present invention prioritization scheme as shown in Figure 1 as an example, technical scheme of the present invention is further explained.
Apparatus of the present invention tip transitions connector 1 is fixed together with oil well pump lower end, with pumping pipe string one
With being sent into well, after reaching precalculated position, pumping pipe string is rotated, by torque power by transit joint 1 through top connection 3, central tube 9
It is transmitted on screw shell 15, screw shell 15 is driven to rotate, since screw shell 15 and lower cone 10 have threaded connection, spiral
The relative rotary motion of casing 15 and lower cone 10 makes lower cone 10 with respect to central tube 9 to producing upward displacement, block teeth 6
Radial displacement is produced by upper cone 5 and the extruding of lower cone 10 by the upper lower inclined plane at rear portion, makes the anchor teeth 24 of block teeth 6 from anchor cylinder
It is further protruded at 7 windowings, by the 24 secured clasping of anchor tooth in oil-well wall, so that the present apparatus is anchored on pit shaft, together
When also play the role of limit to pumping pipe string, make pumping pipe string pump produce when will not generate flexible wriggling, both improved
The volumetric efficiency of oil well pump, while also can avoid that there is a phenomenon where tubing string loosening and releasing or fatigue fracture.
While 10 uplink of lower cone squeezes block teeth 6, anchor cylinder 7, block teeth 6 and upper cone 5 are also upward by lower cone 10
Thrust and generate upward displacement, the packing element 4 being placed between upper cone 5 and top connection 3 is compressed axially, make its generate diameter
To expansion, the space between central tube 9 and well bore wall is filled up completely, is extruded on pit shaft, generates annular packoff effect.Then
When carrying out hot water well-washing wax-cleaning, lower valve ball 19 and the second inner circle platform convex play the ball valve cooperation that 28 form and are also at closed state,
The two is coefficient to descend the state that oil reservoir insulates completely as a result, having reached by it, and hot wash well water can be avoided to pour into oil reservoir and made
The phenomenon that at oil layer pollution, reducing liquid-producing capacity problem, while also avoiding the hot wash water wave that pours into of extraction time-consuming work efficiency, is sent out
It is raw.
When inspection, which pumps, promotes oil pump tubing string, shear pin 22 is first sheared through, promoting pumping pipe string makes to connect in the disengaging of transit joint 1
First 3, rotation pumping pipe string drives transit joint 1 to rotate, since transit joint 1 is threadedly coupled with valve opening main body 2, and valve opening master
The inner surface CONTACT WITH FRICTION of the small brake pad 14 and central tube 9 in body 2 has certain frictional resistance, so will make
It crosses between connector 1 and valve opening main body 2 and produces relative rotation, screw-thread fit between the two will cause valve opening main body 2 with respect to transition
Connector 1 generates upward displacement, and when being moved to certain altitude, the mandril 21 of 2 upper end of valve opening main body is deep into valve under oil pump
In ball valve, lower valve top dome is opened into valve ball valve under oil pump, is let out by under to oil at this point, accumulating in the fluid in pumping pipe string
In well, without by band to be raised to ground pollution environment with rising for tubing string.There was only transit joint 1 and valve opening master in apparatus of the present invention
Body 2 is thus lifted to ground with oil pump, and other parts are then retained in oil well always.
After valve opening main body 2 is thus lifted to certain altitude, valve opening main body 2 is detached with upper valve ball 17, it is at the same time described on
Valve ball 17 moves up under the elastic force effect of upper valve spring 18, is in close contact until playing 25 with outer circle platform convex, closes center
Fluid course in pipe 9.Avoid fluid further on gush the occurrence of causing ground pollution to ground of spraying and spoiling over.When inspection has pumped
Transit joint 1 and valve opening main body 2 are gone into the well with oil pump tubing string, transit joint 1 and valve opening main body 2 are inserted by Cheng Hou together again
Normal production of recovering the oil is restored in original position.
When having needed apparatus of the present invention, tripping in is salvaged after anchor drags for the present apparatus and is above carried, and shear pin 16 is cut, and releases anchor
It is fixed, you can to pull out.
Claims (6)
1. a kind of pumpingh well downhole hardware, including central tube（9）, be set in central tube（9）The top connection of outer wall（3）, packing element
（4）, upper cone（5）, lower cone（10）, screw shell（15）, it is set to central tube（9）Internal valve opening main body（2）, valve ball bullet
Spring（18）, the top connection（3）With central tube（9）Upper end is threadedly coupled, the packing element（4）It is set to top connection（3）With it is upper
Cone（5）Between, the upper cone（5）Lower part has the lower inclined plane towards outside, the lower cone（10）In be inlaid with and rub greatly
Cleaning block（12）, the big brake pad（12）By big brake pad spring（13）Support, makes big brake pad（12）Protrude from lower cone
（10）Side surface, the screw shell（15）It is set to lower cone（10）Lower part, with lower cone（10）It is threadedly coupled, and passes through
Shear pin（16）It is fixed on central tube（9）On, the valve opening main body（2）Upper end is provided with liquid-passing hole（29）, set on upper end center axis
There is mandril（21）, it is characterised in that：
The pumpingh well downhole hardware, further includes transit joint（1）, be sleeved on central tube（9）The anchor cylinder of outer wall（7）, be embedded in
The anchor cylinder（7）Internal block teeth（6）With block teeth spring（8）, be set to central tube（9）Internal upper valve ball（17）And lower valve ball
（19）And it is set to valve opening main body（2）Internal small brake pad（14）With small brake pad spring（20）；
The transit joint（1）Inner surface and valve opening main body（2）It is threadedly coupled, outer surface and top connection（3）Socket, uses simultaneously
Mechanical means or chemical adhesive mode make transit joint（1）With top connection（3）Form connection；
The anchor cylinder（7）It is placed in upper cone（5）And lower cone（10）Between, anchor cylinder（7）It is equipped with several windowings, the block teeth
（6）Equipped with anchor cylinder（7）Matched card slot（23）With anchor tooth（24）, rear portion have towards inside ramp and lower inclined plane,
Block teeth（6）Anchor tooth（24）From anchor cylinder（7）Institute's windowing is projecting inward, the block teeth spring（8）It is placed in anchor cylinder（7）And block teeth（6）
Between card slot（23）In, the lower cone（10）Top have towards outside ramp, the upper cone（5）Lower part
And lower cone（10）Top be respectively protruding into anchor cylinder（7）In, upper cone（5）On lower inclined plane and lower cone（10）On ramp
Respectively with block teeth（6）The ramp and lower inclined plane at rear portion form cooperation；
The central tube（9）Outer wall rises equipped with outer circle platform convex（25）, inner wall is equipped with the first inner circle platform convex（26）With second
Inner circle platform convex rises（28）And discontinuous round platform protrusion（27）, the upper valve ball（17）The first inner circle platform convex is placed in rise（26）'s
Lower part is risen with the first inner circle platform convex（26）Form ball valve cooperation, the lower valve ball（19）The second inner circle platform convex is placed in rise（28）'s
Top is risen with the second inner circle platform convex（28）Form ball valve cooperation, the valve ball spring（18）It is placed in discontinuous round platform protrusion（27）
On, upper end is supported on upper ball valve（17）Lower part；
The valve opening main body（2）It is equipped with and small brake pad（14）Matched windowing, in small brake pad spring（20）Elastic force
Under support, small brake pad（14）It is protruded from institute's windowing, with central tube（9）Inner wall forms frictional fit, the valve opening main body（2）
With upper valve ball（17）Contact end circumferentially several uniformly distributed liquid-passing holes of one end（30）.
2. a kind of pumpingh well downhole hardware as described in claim 1, it is characterised in that：The transit joint（1）With top connection
（3）Pass through shear pin（22）Connection.
3. a kind of pumpingh well downhole hardware as described in claim 1, it is characterised in that：The anchor cylinder（7）Windowing be axial
Corresponding 2 row often arranges circumferentially windowing for 4~6 row, circumferentially.
4. a kind of pumpingh well downhole hardware as described in claim 1, it is characterised in that：The top connection（3）Side wall be provided with
Liquid-passing hole（31）.
5. a kind of pumpingh well downhole hardware as described in claim 1, it is characterised in that：The packing element（4）It is made of more piece.
6. such as a kind of pumpingh well downhole hardware of claim 1 to 5 any one of them, it is characterised in that：In the lower cone
（10）Outer wall on be set with big spring（11）, the big spring（11）Positioned at anchor cylinder（7）Below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133510.1A CN106761536B (en) | 2016-12-10 | 2016-12-10 | A kind of pumpingh well downhole hardware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611133510.1A CN106761536B (en) | 2016-12-10 | 2016-12-10 | A kind of pumpingh well downhole hardware |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106761536A CN106761536A (en) | 2017-05-31 |
| CN106761536B true CN106761536B (en) | 2018-10-23 |
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ID=58875915
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611133510.1A Active CN106761536B (en) | 2016-12-10 | 2016-12-10 | A kind of pumpingh well downhole hardware |
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| Country | Link |
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| CN (1) | CN106761536B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109184646B (en) * | 2018-10-29 | 2023-11-17 | 邓晓亮 | Device and method for realizing supercritical thermal compound powerful oil displacement through electromagnetic wave heating |
| CN111561295B (en) * | 2020-05-20 | 2024-05-10 | 大庆丹诺石油科技开发有限公司 | Double-channel underwater safety valve for hydraulic oil production of ocean oil well |
| CN111852384B (en) * | 2020-07-21 | 2021-06-04 | 大庆丹诺石油科技开发有限公司 | Packer for oil field downhole |
| CN113294117B (en) * | 2021-05-10 | 2022-12-30 | 大庆创革石油技术开发有限公司 | Full-time leakage and prevention dual-purpose device for pumping well |
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