CN103541697A - Anti-sliding single rubber barrel underground throttling device - Google Patents
Anti-sliding single rubber barrel underground throttling device Download PDFInfo
- Publication number
- CN103541697A CN103541697A CN201210241337.2A CN201210241337A CN103541697A CN 103541697 A CN103541697 A CN 103541697A CN 201210241337 A CN201210241337 A CN 201210241337A CN 103541697 A CN103541697 A CN 103541697A
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- support set
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- slips
- claw
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- 238000012856 packing Methods 0.000 claims description 30
- 210000000078 claw Anatomy 0.000 claims description 22
- 239000004576 sand Substances 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 8
- 241000239290 Araneae Species 0.000 claims description 4
- 238000007789 sealing Methods 0.000 abstract description 4
- 230000000087 stabilizing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 241000521257 Hydrops Species 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 2
- 230000006578 abscission Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004677 hydrates Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention discloses a slip-proof single rubber sleeve underground throttling device which is designed for improving the sealing property of the throttling device, prolonging the service life of the throttling device, stabilizing the service life of the throttling device and preventing the throttling from slipping down. When the invention is installed, the device is easy to seal; after the rubber sleeve is installed, the rubber sleeve and the oil pipe have good sealing performance and stable service life; when fishing, the fishing pin is cut off, the body and the slip supporting sleeve move upwards to be separated from the rubber cylinder, so that the rubber cylinder can effectively retract, and the fishing is easy; the anti-sliding clamping jaw can well prevent the device from moving downwards, and the device is prevented from sliding down to the shaft bottom. The invention has good sealing performance and stable service life.
Description
Technical field
The present invention relates to a kind of anti-fall single packing element downhole choke device, belong to production gas technology field, oil field.
Background technology
Downhole choke technology is to rely on downhole choke device to realize pit shaft reducing pressure by regulating flow, utilizes ground temperature heating to make the gas flow temperature of well head after throttling substantially return to the temperature before throttling, to solve many technical barriers that in gas well manufacturing process, pit shaft and ground exist.
At Soviet Union's Sulige gas field, the application of downhole choke technology reduces well head and surface gathering system pressure by preventing that gas hydrates from forming to develop into, and has optimized ground flow, becomes the key technology of Soviet Union's Sulige gas field exploitation.
Soviet Union's Sulige gas field high pressure campaign is only 1～2 year, and initial stage pressure drop rate is fast, and the gas well low pressure production cycle is long.In order to ensure the steadily normal operation of Soviet Union's Sulige gas field mesolow gas collection, the working life of underground throttle device must be able to meet the high pressure campaign of gas well.Along with the exploitation of Soviet Union's Sulige gas field, well yield is more and more lower, and minority stripper well can not normally be produced because of hydrops.For meeting Production requirement, regulate gas well output, adopt water pumping gas production measure and give full play to gas well deliverability, need from pit shaft, salvage restriction choke.
The restriction choke using at present because of service time long; packing element easily produces permanent deformation; cause in salvaging process and can not effectively bounce back; and; when pit shaft hydrops is on restriction choke; for conducting oil jacket, press, usually there will be the drop phenomenon in shaft bottom of restriction choke, cause gas well cannot carry out follow-up gas producing technology test.
Summary of the invention
The object of the present invention is to provide a kind of anti-fall single packing element downhole choke device, its good airproof performance, application life is stable, anti-fall and easily salvage, and the Efficient Development that can be Soviet Union's Sulige gas field provides technical support.
Concrete technical scheme of the present invention is as follows:
Locking cover expanding barrel top, the top gland that is threaded, and locked by screw.Dispenser is through gland, and its top hole enlargement bar is fixed in the expanding barrel of locking cover top by pin radially, and dispenser bottom undergauge bar inserts in the undergauge cylinder of locking cover bottom.
Locking cover undergauge drum outer wall suit body, body top connects salvages baffle ring, next coming in order suit fishing head, slips and slips support set.Slips top snaps in fishing head bottom hook groove, and is locked in body outer wall slip spider by lock tube.Slips support set is fixed on body bottom by salvaging pin, and the limit baffle ring of body below snaps in slips support set inboard wall groove.Master lock cover outer wall convex shoulder articulates slips support set inboard wall groove, and inwall convex shoulder articulates locking cover bottom outer wall boss.
Setting plunger barrel is located at locking cover below, support set in its outer wall suit.Middle support set top connects the lower baffle ring being compressed by master lock cover.Middle support set outer wall suit slips support set 11, packing element support set, packing element and cylinder jacket, packing element support set connects slips support set and is fixed by pinning, and cylinder jacket and middle support set are articulated by lug bosses at end part.
In hole enlargement hole, setting plunger barrel bottom, connect the valve seat of being locked by valve pinning, in valve seat, be provided with the valve being compressed by pressure cap.Sand cap upper and lower end connects respectively cylinder jacket and outer support cover.The adapter sleeve upper end being located in sand cap connects setting plunger barrel, Connection Card screw claw in the centre bore of lower end, and claw screw connects the anti-fall claw that is positioned at outer support cover, and outer support cover lower end connects claw and shrinks stopper.
The advantage of the anti-fall single packing element downhole choke device of the present invention is: during installation, it is setting easy to install; After installation, packing element and oil pipe good airproof performance, application life is stable; During salvaging, salvage pin and cut off, body and slips support set move up, and depart from packing element, and packing element can effectively be bounced back, and make to salvage easily; Anti-fall claw can well prevent device to move down, and avoids device landing shaft bottom.
Accompanying drawing explanation
Fig. 1 is that anti-fall single packing element downhole choke device enters well status architecture schematic diagram.
Fig. 2 is slips support set 11, limit baffle ring 13, master lock cover 14 and lower baffle ring 15 partial enlarged views.
Fig. 3 is that anti-fall single packing element downhole choke device sets status architecture schematic diagram.
Fig. 4 is that anti-fall single packing element downhole choke device is salvaged status architecture schematic diagram.
The specific embodiment
Referring to figs. 1 through 4 pairs of embodiments of the invention, further illustrate:
Embodiment:
Setting plunger barrel 20 is located at locking cover 3 belows, support set 19 in its outer wall suit.Middle support set 19 tops connect by master lock overlaps the lower baffle ring 15 that 14 screw threads compress, middle support set 19 outer wall suit slips support sets 11, packing element support set 16, packing element 18 and cylinder jacket 21, packing element support set 16 screwed connection slips support sets 11 and being fixed by pinning 17, cylinder jacket 21 and middle support set 19 are articulated by lug bosses at end part.
In setting plunger barrel 20 hole enlargement holes, bottom, connect the valve seat 22 by 23 lockings of valve pinning, in valve seat 22, be provided with the valve 24 being compressed by pressure cap 25 screw threads.Sand cap 26 upper and lower ends respectively internal thread connect cylinder jacket 21 and outer support cover 30.The adapter sleeve 27 upper end internal threads that are located in sand cap 26 connect setting plunger barrel 20, Connection Card screw claw 28 in the centre bore of lower end, claw screw 28 connects the anti-fall claw 29 of tapering wing formula that is positioned at outer support cover 30, and outer support is overlapped 30 lower end internal threads and connected claw contraction stopper 31.
Assembling of the present invention and the course of work are as follows:
1. assembling:
Dispenser 1 lower end is inserted in locking cover 3 central through holes, pin 4 is radially inserted in the radial direction through hole of delivery tools 1 and locking cover 3 to upper gland 2 lock-screw 5.
2. throw in (see figure 2):
Steel wire operation connects dispenser 1 by tool string, restriction choke is lowered to projected depth, on carry tool string and make slips 9 and oil pipe engaging, in continuation, propose jarring and cut off radially pin 4, the relative body 7 of dispenser 1 moves up, drive locking cover 3 to throw off master lock cover 14, with tool string, trip out pit shaft, complete restriction choke and throw in.
Pit shaft air pressure promotes setting plunger barrel 20 and drives cylinder jacket 21 up, makes packing element 18 Expansion sealing oil pipes, drives anti-fall claw 29 to shrink stopper 31 and eject and contact with oil pipe from claw simultaneously, prevents from gliding.
3. salvage (see figure 3):
By tool string, connecting Special fishing tool enters well and catches fishing head 8, upwards jarring departs from slips 9 and oil pipe, jarring force upwards makes body 7 drive slips support set 11 up together with packing element support set 16, cut off and salvage after pin 12, slips support set 11 makes packing element 18 retractions with middle support set 19 relative pulling open, packing element 18 friction oil pipes in the time of can avoiding carrying, it is easier to make to salvage.In addition, if throttling moves down, when the anti-fall claw 29 ejecting runs into oil pipe joint hoop, on its wing, tapering can stop descending and abscission joint hoop, and its tapering abscission joint hoop smoothly on wing when up.
Claims (2)
1. an anti-fall single packing element downhole choke device, is characterized in that:
Locking cover expanding barrel top, (3) top gland (2) that is threaded, and locked by screw (5); Dispenser (1) is through gland (2), and its top hole enlargement bar is fixed in the expanding barrel of locking cover (3) top by pin (4) radially, and its underpart undergauge bar inserts in the undergauge cylinder of locking cover (3) bottom;
Locking cover (3) undergauge drum outer wall suit body (7), body (7) top connects salvages baffle ring (6), next coming in order suit fishing head (8), slips (9) and slips support set (11); Slips (9) top snaps in fishing head (8) bottom hook groove, and is locked in body (7) outer wall slip spider by lock tube (10); Slips support set (11) is fixed on body (7) bottom by salvaging pin (12), and the limit baffle ring (13) of body (7) below snaps in slips support set (11) inboard wall groove; Master lock cover (14) outer wall convex shoulder articulates slips support set (11) inboard wall groove, and inwall convex shoulder articulates locking cover (3) bottom outer wall boss;
Setting plunger barrel (20) is located at locking cover (3) below, support set (19) in its outer wall suit; Middle support set (19) top connects the lower baffle ring (15) being compressed by master lock cover (14); Middle support set (19) outer wall suit slips support set (11), packing element support set (16), packing element (18) and cylinder jacket (21), packing element support set (16) connects slips support set (11) and fixing by pinning (17), and cylinder jacket (21) and middle support set (19) are articulated by lug bosses at end part;
In hole enlargement hole, setting plunger barrel (20) bottom, connect the valve seat (22) by valve pinning (23) locking, in valve seat (22), be provided with the valve (24) being compressed by pressure cap (25); Sand cap (26) upper and lower end connects respectively cylinder jacket (21) and outer support cover (30); Adapter sleeve (27) upper end being located in sand cap (26) connects setting plunger barrel (20), Connection Card screw claw (28) in the centre bore of lower end, claw screw (28) connects the anti-fall claw (29) that is positioned at outer support cover (30), and outer support cover (30) lower end connects claw and shrinks stopper (31).
2. anti-fall single packing element downhole choke device as claimed in claim 1, is characterized in that locking cover expanding barrel top, (3) top gland (2) that is threaded; Baffle ring (6) is salvaged in the screwed connection of body (7) top; Middle support set (19) top connects the lower baffle ring (15) being compressed by master lock cover (14) screw thread; Packing element support set (16) screwed connection slips support set (11); Pressure cap (25) screw thread compresses valve (24); Sand cap (26) upper and lower end respectively internal thread connects cylinder jacket (21) and outer support cover (30); Adapter sleeve (27) upper end internal thread connects setting plunger barrel (20); Claw screw (28) connects the anti-fall claw of tapering wing formula (29) that is positioned at outer support cover (30); Outer support cover (30) lower end internal thread connects claw and shrinks stopper (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210241337.2A CN103541697B (en) | 2012-07-12 | 2012-07-12 | Anti-sliding single rubber barrel underground throttling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210241337.2A CN103541697B (en) | 2012-07-12 | 2012-07-12 | Anti-sliding single rubber barrel underground throttling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103541697A true CN103541697A (en) | 2014-01-29 |
| CN103541697B CN103541697B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210241337.2A Active CN103541697B (en) | 2012-07-12 | 2012-07-12 | Anti-sliding single rubber barrel underground throttling device |
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|---|---|
| CN (1) | CN103541697B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587293A (en) * | 2016-02-23 | 2016-05-18 | 中国石油天然气股份有限公司 | Coupling seat-type underground production allocation device |
| CN107503718A (en) * | 2017-09-22 | 2017-12-22 | 中国石油集团西部钻探工程有限公司 | Underground throttle device |
| CN111075407A (en) * | 2019-12-18 | 2020-04-28 | 中国石油天然气股份有限公司 | Gas well full life cycle downhole throttling production device and use method thereof |
| CN112302583A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Restrictor and outer working barrel |
| CN113338838A (en) * | 2020-03-02 | 2021-09-03 | 中国石油天然气股份有限公司 | Preset underground throttle, underground throttle process pipe column and gas production pipe column |
| CN115142807A (en) * | 2022-07-08 | 2022-10-04 | 陕西延长石油(集团)有限责任公司延长气田采气四厂 | Throttle easy to throw and drag |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3584684A (en) * | 1969-06-02 | 1971-06-15 | Halliburton Co | Retrievable packer apparatus for use in a well bore and method of prolonging its operating life |
| CN2471929Y (en) * | 2001-01-11 | 2002-01-16 | 中国石油天然气股份有限公司 | Underground throttle valve and throttle valve fishing tool thereof |
| CN101798913A (en) * | 2010-03-10 | 2010-08-11 | 中国石油天然气股份有限公司 | Differential pressure type downhole choke |
| CN201627572U (en) * | 2010-02-25 | 2010-11-10 | 中国石油天然气股份有限公司 | Underground throttle |
| CN202745835U (en) * | 2012-07-12 | 2013-02-20 | 中国石油天然气股份有限公司 | Anti-sliding single rubber barrel underground throttling device |
-
2012
- 2012-07-12 CN CN201210241337.2A patent/CN103541697B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3584684A (en) * | 1969-06-02 | 1971-06-15 | Halliburton Co | Retrievable packer apparatus for use in a well bore and method of prolonging its operating life |
| CN2471929Y (en) * | 2001-01-11 | 2002-01-16 | 中国石油天然气股份有限公司 | Underground throttle valve and throttle valve fishing tool thereof |
| CN201627572U (en) * | 2010-02-25 | 2010-11-10 | 中国石油天然气股份有限公司 | Underground throttle |
| CN101798913A (en) * | 2010-03-10 | 2010-08-11 | 中国石油天然气股份有限公司 | Differential pressure type downhole choke |
| CN202745835U (en) * | 2012-07-12 | 2013-02-20 | 中国石油天然气股份有限公司 | Anti-sliding single rubber barrel underground throttling device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587293A (en) * | 2016-02-23 | 2016-05-18 | 中国石油天然气股份有限公司 | Coupling seat-type underground production allocation device |
| CN105587293B (en) * | 2016-02-23 | 2018-03-09 | 中国石油天然气股份有限公司 | Coupling seat-type underground production allocation device |
| CN107503718A (en) * | 2017-09-22 | 2017-12-22 | 中国石油集团西部钻探工程有限公司 | Underground throttle device |
| CN107503718B (en) * | 2017-09-22 | 2024-04-26 | 中国石油天然气集团有限公司 | Downhole choke |
| CN112302583A (en) * | 2019-07-29 | 2021-02-02 | 中国石油化工股份有限公司 | Restrictor and outer working barrel |
| CN112302583B (en) * | 2019-07-29 | 2023-03-14 | 中国石油化工股份有限公司 | Restrictor and outer working barrel |
| CN111075407A (en) * | 2019-12-18 | 2020-04-28 | 中国石油天然气股份有限公司 | Gas well full life cycle downhole throttling production device and use method thereof |
| CN111075407B (en) * | 2019-12-18 | 2024-01-30 | 中国石油天然气股份有限公司 | Underground throttling production device for gas well full life cycle and application method thereof |
| CN113338838A (en) * | 2020-03-02 | 2021-09-03 | 中国石油天然气股份有限公司 | Preset underground throttle, underground throttle process pipe column and gas production pipe column |
| CN115142807A (en) * | 2022-07-08 | 2022-10-04 | 陕西延长石油(集团)有限责任公司延长气田采气四厂 | Throttle easy to throw and drag |
| CN115142807B (en) * | 2022-07-08 | 2024-06-14 | 陕西延长石油(集团)有限责任公司延长气田采气四厂 | Easy-to-put and drag-out throttle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103541697B (en) | 2016-01-20 |
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| C14 | Grant of patent or utility model | ||
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