CN104806203A - Draining and atomizing throttling device - Google Patents

Draining and atomizing throttling device Download PDF

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Publication number
CN104806203A
CN104806203A CN201410383319.7A CN201410383319A CN104806203A CN 104806203 A CN104806203 A CN 104806203A CN 201410383319 A CN201410383319 A CN 201410383319A CN 104806203 A CN104806203 A CN 104806203A
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CN
China
Prior art keywords
core bar
cap
seat
helical teeth
slips
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410383319.7A
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Chinese (zh)
Inventor
杭建春
Original Assignee
杭建春
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Filing date
Publication date
Application filed by 杭建春 filed Critical 杭建春
Priority to CN201410383319.7A priority Critical patent/CN104806203A/en
Publication of CN104806203A publication Critical patent/CN104806203A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12Methods or apparatus for controlling the flow of the obtained fluid to or in wells

Abstract

The invention discloses a draining and atomizing throttling device. The device comprises a main body; an upper joint and a sand preventing seat which are fixedly connected are respectively arranged at two ends of the main body; the main body comprises a mandrel, slips, a centering body and an inclined teeth cap, wherein the mandrel comprises an upper mandrel and a lower mandrel; the slips are embedded and fixed through a slips seat; a centering plate and a centering plate spring clamped into the centering plate are fixedly arranged on the centering body a downward pressing manner; the inclined teeth cap is embedded and fixed through an inclined teeth cap seat; an aluminum anode and a filtering screen plate connected with the aluminum anode are arranged at one side of a sand preventing seat joint. According to the device, the liquid is atomized, thus the mixture density of natural gas and water can be reduced, and the cost can be effectively reduced; the structural design is simple; the failure rate due to parts fault can be reduced; the device is easy to launch and pick; the service life can be effectively prolonged; a rubber barrel is initially closely sealed, and the initial sealing force of the rubber barrel is controlled through upward lifting pull force, so that the sealing performance of the rubber barrel can be ensured; the assembly and spare parts are flexible in design, and convenient to reconstruct and debug; different user demands can be met.

Description

A kind of draining atomization restriction choke
Technical field
The present invention relates to choke technology field, underground, particularly relate to a kind of draining atomization restriction choke.
Background technology
In gas exploitation course, along with the continuity of recovery time, bottom pressure ofgas well and natural gas flow speed progressively reduce, and cause the production water in gas reservoir or condensed liquid can not carry out pit shaft with natural gas flow, thus are detained in the wellbore.These liquid are gathered in shaft bottom within a period of time, form fluid column, cause extra hydrostatic back pressure, cause gas well blowing energy continuous decrease to gas reservoir.Usually, if this situation continues, gas can kill by the fluid column assembled in pit shaft, causes gas well to stop production.This phenomenon is just referred to as " gas well plug-ging ".Gas well plug-ging can have a strong impact on the production of natural gas, must get rid of in time.In order to solve hydrops problem in Wellbore of Gas Wells, expand more research both at home and abroad, these Method and Technology respectively possess some good points and weakness, but up to now, also do not have gratifying method.In order to ensure the prodution and development in gas field, need to develop economy, efficient fluid-discharge method and technology.
Domestic gas field present stage, main drainage measure had foaming water discharge Concentric capillary tubing technology, eddy current draining, coiled tubing draining, Continuous gas circulation, the draining of speed tubing string, plunger (bulb stopper) gaslift, dark water-pumping/draining, the exciting discharge opeing of interconnected pit shaft between well, Multi-level throttle valve is helped each other discharge opeing, note nitrogen, narrow tube gas production, slim hole well drilling and production technology, optimizing pipe string gas production, the draining of the gas well degree of depth, electric submersible pump jet pump bubble row combine with other techniques, these technologies to play an important role the Sulige gas field gas well liquid loading gas production restriction choke mode of production substantially of such as reviving at present with its respective advantage in the discharge opeing of water pumping gas production and DISPLACEMENT FLUID IN WATERED-OUT WELL reproduces.To the middle and later periods of gas well liquid loading, along with gas well deliverability reduces, gas production reduces, and production water can not carry ground outside completely, can assemble gradually, form hydrops on restriction choke.Now, will carry out salvaging restriction choke construction, and by drainage measure, discharge gas well production water recovery gas well and normally produce.If hydrops post is higher above restriction choke, this part fluid column can produce larger pressure (every 100 meters of fluid columns will produce the pressure of about 3000N) to restriction choke, gives to salvage restriction choke construction and cause difficulty, even causes fishing tool to fall well accident.
The method of the water drainage-gas recovery technology that external gas field adopts mainly contains two classes: one is stop water to enter gas reservoir, and two is get rid of the water in pit shaft.Method for the first kind mainly adopts chemical method water blockoff, and Equations of The Second Kind method mainly contains three kinds: one is aerodynamic processes, as periodicity open flow, and little oil pipe, syphon purge etc.; Two is chemical methodes, as injected foam active agent etc.; Three is mechanical means, as Plunger Lift, pump are taken out.
Can see from numerous drainage gas recovery both domestic and external; Various technology respectively possesses some good points, and respectively has the place of limitation, does not have general applicability, and most methods effect is not remarkable, and cost is high.
Summary of the invention
A kind of draining is the object of the present invention is to provide to be atomized restriction choke, be atomized based on by liquid, reduce the mixture density of natural gas and water, make natural gas in flow process, rely on self-energy just can carry water outlet, this method cost is extremely low, effective, guarantee to run for continuous three months, gas production still keeps stable, and casing pressure slightly increases, save gas-bearing formation energy, water can be ensured to discharge completely.
For effectively solving the problems of the technologies described above, the technical scheme that the present invention takes is as follows:
A kind of draining atomization restriction choke, comprise a main structure body, described main structure body two ends are respectively equipped with the top connection and sand prevention seat that are fixedly connected with, and described main structure body is made up of individual core bar, slips, centralizer body and helical teeth cap; Wherein, described core bar comprises core bar and lower core bar, described slips is set fixing by arranging slip spider, and described slip spider is made up of upper slips seat and lower slips seat, described centralizer body presses down and is fixed with body resistance-strengthening tablets and holding body resistance-strengthening tablets spring wherein, described helical teeth cap is set fixing by arranging helical teeth cap seat, and side, described helical teeth cap top arranges helical teeth upper pressing cap, the filtering net plate that the described first side of sand prevention seated connection arranges aluminium anodes and is attached thereto.
Especially, described top connection is connected with the upper core bar on described main structure body by the straight pin snapped in, and comprises a fishing bell near described upper core bar junction, and described upper slips seat is fixed side and is provided with nut under fishing bell.
Especially, described centralizer body is provided with body resistance-strengthening tablets upper pressing cap near described upper core bar side.
Especially, junction, described lower core bar two ends is provided with sealing ring, and described lower core bar centre position connects described helical teeth upper pressing cap, slip spider and body resistance-strengthening tablets junction is equipped with sealing ring.
Especially, between described sand prevention seat and described main structure body link, be provided with sealing-plug, and realize being tightly connected by built-in sealing ring.
Especially, described helical teeth upper pressing cap comprises core bar sleeve pipe between described lower slips seat, and this covers the rubber ring and rubber washer that connect in described core bar sleeve pipe outer section, and described helical teeth cap connects described helical teeth upper pressing cap and helical teeth cap supporting positive cover up and down.
Especially, described helical teeth cap supporting positive cover lower outer is along the core bar cap pressure cap and the core bar cap that comprise screens connection, and described core bar cap connects the described sealing-plug of peripheral hardware.
Especially, outer, described upper slips seat upper and lower two ends arranges many group fluting holding screws respectively and is fixedly connected with described upper slips seat and lower core bar respectively.
Especially, described top connection, upper core bar, lower core bar, sealing-plug, sand prevention seat, aluminium anodes and aluminium mesh sheet are once fixedly connected with; Described main structure body is respectively equipped with the one-way mechanism and guider that fixedly entangle firm up and down near described sealing-plug one section.
Especially, under described fishing bell, body resistance-strengthening tablets upper pressing cap are fixed in described main structure body and go up core bar level, core bar is outside, described upper core bar, lower core bar combined with described main structure body external structure telescopic connection, and described upper slips seat and lower slips seat realize outer cover load respectively and connect.
Beneficial effect of the present invention is: draining atomization restriction choke provided by the invention, be atomized based on by liquid, reduce the mixture density of natural gas and water, make natural gas in flow process, rely on self-energy just can carry water outlet, this method cost is extremely low, effective, guarantee to run for continuous multiple months, gas production still keeps stable, and casing pressure slightly increases, save gas-bearing formation energy, water can be ensured to discharge completely; The tool structure design of restriction choke own is simple, locates setting effectively sturdy, decreases the crash rate that component failure causes.Easy input, during input, slips closes in body, can not because of meet in launch process be slightly hampered after produce and set by mistake, easily salvage, during salvaging, packing element deblocking, packing element has retraction space, packing element and tube inner wall frictional force little, fishing success ratio is high; Rubber material selects fluorubber, and high pressure resistant, high temperature resistant, resistance to natural gas and condensate corrode, and effectively strengthen application life; Packing element initial sealing is tight, and the pulling force that packing element initial sealing power is carried from above controls, and can ensure packing element sealing; Assembly and auxiliary flexible design, repacking debugging is convenient, can meet the demand of different user.
Below in conjunction with accompanying drawing, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is automation draining of the present invention atomization restriction choke sectional drawing;
Fig. 2 is the top connection fragmentary cross-sectional view in automation draining of the present invention atomization restriction choke;
Fig. 3 is core bar one end sectional drawing on the main structure body in automation draining of the present invention atomization restriction choke;
Fig. 4 is core bar one end sectional drawing under the main structure body in automation draining of the present invention atomization restriction choke.
Wherein:
001 top connection, 002 straight pin,
Core bar on 003,004 fishing bell,
005 body resistance-strengthening tablets upper pressing cap, 006 fluting holding screw,
007 centralizer body, 008 body resistance-strengthening tablets spring,
009 body resistance-strengthening tablets, 010 upper slips seat,
013 time core bar, 014 slips,
015 lower slips seat, 016 core bar sleeve pipe,
017 rubber ring, 018 rubber washer,
019 helical teeth upper pressing cap, 020 helical teeth cap,
021 helical teeth cap supporting positive cover, 022 helical teeth cap seat,
023 core bar cap pressure cap, 024 core bar cap,
025 sealing-plug, 026 sand prevention seat,
027 aluminium anodes, 028 filtering net plate,
029 sealing ring, 030 guider,
031 one-way mechanism, nut under 0 33 fishing bells,
034 main structure body.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1, Figure 2, shown in Fig. 3 and Fig. 4, draining atomization restriction choke disclosed in the present embodiment, comprise a main structure body 034, described main structure body 034 two ends are respectively equipped with the top connection 001 and sand prevention seat 026 that are fixedly connected with, and described main structure body 034 is made up of individual core bar, slips 014, centralizer body 007 and helical teeth cap 020; Wherein, described core bar comprises core bar 003 and lower core bar 013, described slips 014 is set fixing by arranging slip spider, and described slip spider is made up of upper slips seat 010 and lower slips seat 015, described centralizer body 007 presses down and is fixed with body resistance-strengthening tablets 009 and holding body resistance-strengthening tablets spring 008 wherein, described helical teeth cap 020 is set fixing by arranging helical teeth cap seat 022, and side, described helical teeth cap 020 top arranges helical teeth upper pressing cap 019, the filtering net plate 028 that described sand prevention seat 026 joint side arranges aluminium anodes 027 and is attached thereto.
Described top connection 001 is connected with the upper core bar 003 on described main structure body 034 by the straight pin 002 snapped in, and comprises a fishing bell 004 near described upper core bar 003 junction, and described upper slips seat 010 is fixed side and is provided with nut 033 under fishing bell.Described centralizer body 007 is provided with body resistance-strengthening tablets upper pressing cap 005 near described upper core bar 003 side.Junction, described lower core bar 013 two ends is provided with sealing ring 029, and described lower core bar 013 centre position connects described helical teeth upper pressing cap 019, slip spider and body resistance-strengthening tablets 009 junction is equipped with sealing ring 029.Be provided with sealing-plug 025 between described sand prevention seat 026 and described main structure body 034 link, and realize being tightly connected by built-in sealing ring 029.Described helical teeth upper pressing cap 019 comprises core bar sleeve pipe 016 between described lower slips seat 015, and this covers the rubber ring 017 and rubber washer 018 that connect in described core bar sleeve pipe 016 outer section, described helical teeth cap about 020 connects described helical teeth upper pressing cap 019 and helical teeth cap supporting positive cover 021.Described helical teeth cap supporting positive cover 021 lower outer is along the core bar cap pressure cap 023 and the core bar cap 024 that comprise screens connection, and described core bar cap 024 connects the described sealing-plug 025 of peripheral hardware.Outer, described upper slips seat upper and lower two ends arranges many group fluting holding screws 006 respectively and is fixedly connected with described upper slips seat 010 and lower core bar 013 respectively.Described top connection 001, upper core bar 003, lower core bar 013, sealing-plug 025, sand prevention seat 026, aluminium anodes and aluminium mesh sheet are once fixedly connected with; Described main structure body 034 is respectively equipped with the one-way mechanism 031 and guider 030 that fixedly entangle firm up and down near described sealing-plug 025 1 sections.It is outside that described fishing bell 004, body resistance-strengthening tablets 009 upper pressing cap 005 are fixed on the lower core bar 013 of upper core bar 003 grade in described main structure body 034, described upper core bar 003, lower core bar 013 combined with described main structure body 034 external structure telescopic connection, and described upper slips seat and lower slips seat 015 realize outer cover load respectively and connect.
Applicant states, person of ordinary skill in the field is on the basis of above-described embodiment, by above-described embodiment step, combined with the technical scheme of summary of the invention part, thus the new method produced, also be one of record scope of the present invention, the application, for making manual simple and clear, no longer enumerates other embodiment of these steps.
The technology path being different from prior art in the present embodiment is:
1, be atomized based on by liquid, reduce the mixture density of natural gas and water, make natural gas in flow process, rely on self-energy just can carry water outlet, this method cost is extremely low, effective, guarantees to run for continuous multiple months, gas production still keeps stable, casing pressure slightly increases, and has saved gas-bearing formation energy, and water can be ensured to discharge completely;
2, the tool structure design of restriction choke own is simple, locates setting effectively sturdy, decreases the crash rate that component failure causes.Easy input, during input, slips closes in body, can not because of meet in launch process be slightly hampered after produce and set by mistake;
3, easily salvage, during salvaging, packing element deblocking, packing element has retraction space, packing element and tube inner wall frictional force little, fishing success ratio is high;
4, rubber material selects fluorubber, and high pressure resistant, high temperature resistant, resistance to natural gas and condensate corrode, and effectively strengthen application life; Packing element initial sealing is tight, and the pulling force that packing element initial sealing power is carried from above controls, and can ensure packing element sealing;
5, assembly and auxiliary flexible design, repacking debugging is convenient, can meet the demand of different user.
The present embodiment technical scheme and technique effect are different from conventional art and are: when carrying out the construction of salvaging restriction choke, when finding hydrops above dewatering type restriction choke, first entering to open sliding sleeve instrument down, sliding sleeve is pushed away downwards, opening drain hole, then tripping out and open sliding sleeve instrument.At this moment above restriction choke, hydrops can be discharged in the pit shaft below restriction choke by drain hole and restriction choke core bar central passage.According to the number of hydrops amount, wait for a period of time (general 2-8 hour), after hydrops emptying, then carries out normal restriction choke fishing.
The another statement of applicant, the present invention illustrates implementation method of the present invention and apparatus structure by above-described embodiment, but the present invention is not limited to above-mentioned embodiment, does not namely mean that the present invention must rely on said method and structure could be implemented.Person of ordinary skill in the field should understand, any improvement in the present invention, replaces and the interpolation of step, concrete way choice etc., all drop within protection scope of the present invention and open scope implementation method equivalence selected by the present invention.
The present invention is not limited to above-mentioned embodiment, and all employings and analog structure of the present invention and method thereof realize all embodiments of the object of the invention all within scope.

Claims (10)

1. a draining atomization restriction choke, it is characterized in that, comprise a main structure body, described main structure body two ends are respectively equipped with the top connection and sand prevention seat that are fixedly connected with, and described main structure body is made up of individual core bar, slips, centralizer body and helical teeth cap; Wherein, described core bar comprises core bar and lower core bar, described slips is set fixing by arranging slip spider, and described slip spider is made up of upper slips seat and lower slips seat, described centralizer body presses down and is fixed with body resistance-strengthening tablets and holding body resistance-strengthening tablets spring wherein, described helical teeth cap is set fixing by arranging helical teeth cap seat, and side, described helical teeth cap top arranges helical teeth upper pressing cap, the filtering net plate that the described first side of sand prevention seated connection arranges aluminium anodes and is attached thereto.
2. a draining atomization restriction choke, it is characterized in that, comprise a main structure body, described main structure body two ends are respectively equipped with the top connection and sand prevention seat that are fixedly connected with, and described main structure body is made up of individual core bar, slips, centralizer body and helical teeth cap; Wherein, described core bar comprises core bar and lower core bar, described slips is set fixing by arranging slip spider, and described slip spider is made up of upper slips seat and lower slips seat, described centralizer body presses down and is fixed with body resistance-strengthening tablets and holding body resistance-strengthening tablets spring wherein, described helical teeth cap is set fixing by arranging helical teeth cap seat, and side, described helical teeth cap top arranges helical teeth upper pressing cap, the filtering net plate that the described first side of sand prevention seated connection arranges aluminium anodes and is attached thereto.
3. draining atomization restriction choke according to claim 1, it is characterized in that, described centralizer body is provided with body resistance-strengthening tablets upper pressing cap near described upper core bar side.
4. draining according to claim 1 atomization restriction choke, it is characterized in that, junction, described lower core bar two ends is provided with sealing ring, and described lower core bar centre position connects described helical teeth upper pressing cap, slip spider and body resistance-strengthening tablets junction is equipped with sealing ring.
5. sand prevention seat described in and be provided with sealing-plug between described main structure body link, and realize being tightly connected by built-in sealing ring.
6. draining atomization restriction choke according to claim 1, it is characterized in that, described helical teeth upper pressing cap comprises core bar sleeve pipe between described lower slips seat, and this covers the rubber ring and rubber washer that connect in described core bar sleeve pipe outer section, described helical teeth cap connects described helical teeth upper pressing cap and helical teeth cap supporting positive cover up and down.
7. draining atomization restriction choke according to claim 6, is characterized in that, described helical teeth cap supporting positive cover lower outer is along the core bar cap pressure cap and the core bar cap that comprise screens connection, and described core bar cap connects the described sealing-plug of peripheral hardware.
8. draining atomization restriction choke according to claim 1, is characterized in that, outer, described upper slips seat upper and lower two ends arranges many group fluting holding screws respectively and is fixedly connected with described upper slips seat and lower core bar respectively.
9. draining atomization restriction choke according to claim 1, it is characterized in that, described top connection, upper core bar, lower core bar, sealing-plug, sand prevention seat, aluminium anodes and aluminium mesh sheet are once fixedly connected with; Described main structure body is respectively equipped with the one-way mechanism and guider that fixedly entangle firm up and down near described sealing-plug one section.
10. draining atomization restriction choke according to claim 1, it is characterized in that, under described fishing bell, body resistance-strengthening tablets upper pressing cap are fixed in described main structure body and go up core bar level, core bar is outside, described upper core bar, lower core bar combined with described main structure body external structure telescopic connection, and described upper slips seat and lower slips seat realize outer cover load respectively and connect.
CN201410383319.7A 2014-08-06 2014-08-06 Draining and atomizing throttling device Pending CN104806203A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410383319.7A CN104806203A (en) 2014-08-06 2014-08-06 Draining and atomizing throttling device

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Application Number Priority Date Filing Date Title
CN201410383319.7A CN104806203A (en) 2014-08-06 2014-08-06 Draining and atomizing throttling device

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CN104806203A true CN104806203A (en) 2015-07-29

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108343404A (en) * 2018-02-08 2018-07-31 中国石油天然气股份有限公司 A kind of natural gas well intelligence flow controller
CN111197472A (en) * 2019-12-31 2020-05-26 鄂尔多斯市天泰石油科技开发有限公司 Gas well underground composite efficient drainage throttling device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0177623A1 (en) * 1984-10-08 1986-04-16 Endre Palffy Method and apparatus for the establishment of, in particular, water producing drilled wells
CN201326408Y (en) * 2008-09-17 2009-10-14 濮阳市太和测试技术有限公司 2*** inch gas well downhole choke
CN101798913A (en) * 2010-03-10 2010-08-11 中国石油天然气股份有限公司 Differential pressure underground throttle device
CN101949281A (en) * 2010-09-21 2011-01-19 中国石油天然气股份有限公司 Underground throttler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0177623A1 (en) * 1984-10-08 1986-04-16 Endre Palffy Method and apparatus for the establishment of, in particular, water producing drilled wells
CN201326408Y (en) * 2008-09-17 2009-10-14 濮阳市太和测试技术有限公司 2*** inch gas well downhole choke
CN101798913A (en) * 2010-03-10 2010-08-11 中国石油天然气股份有限公司 Differential pressure underground throttle device
CN101949281A (en) * 2010-09-21 2011-01-19 中国石油天然气股份有限公司 Underground throttler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108343404A (en) * 2018-02-08 2018-07-31 中国石油天然气股份有限公司 A kind of natural gas well intelligence flow controller
CN111197472A (en) * 2019-12-31 2020-05-26 鄂尔多斯市天泰石油科技开发有限公司 Gas well underground composite efficient drainage throttling device

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Application publication date: 20150729