CN104514528A - Choke ware packing element dissolving agent input device - Google Patents
Choke ware packing element dissolving agent input device Download PDFInfo
- Publication number
- CN104514528A CN104514528A CN201310449879.3A CN201310449879A CN104514528A CN 104514528 A CN104514528 A CN 104514528A CN 201310449879 A CN201310449879 A CN 201310449879A CN 104514528 A CN104514528 A CN 104514528A
- Authority
- CN
- China
- Prior art keywords
- sealed
- spring
- connector
- packing element
- barrel
- 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.)
- Granted
Links
- 238000012856 packing Methods 0.000 title claims description 13
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 7
- 239000010959 steel Substances 0.000 claims abstract description 7
- 238000002347 injection Methods 0.000 claims abstract description 5
- 239000007924 injection Substances 0.000 claims abstract description 5
- 230000002101 lytic effect Effects 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002343 natural gas well 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
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- 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
- E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
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)
- Gasket Seals (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a device for throwing a dissolving agent into a rubber barrel of a restrictor, which is designed for realizing smooth fishing of the restrictor. The steel wire is connected to the connector upper end of this device, and the barrel is connected to the lower extreme to it is sealed by the axial sealing washer. The upper part of the cylinder wall is provided with an injection screw hole which is connected with a screw cap and sealed by a sealing rubber ring. The inner wall step of the bottom end of the cylinder body is connected with a bottom cover, and the bottom cover is fixed by a pin penetrating in the step and in the radial direction and is sealed by a sealing ring. The barrel is internally provided with a spring, the upper end of the spring is connected with the bottom surface of the connector, and the lower end of the spring is connected with the bottom cover. The device can be in close contact with the throttler, the rubber cylinder can be efficiently dissolved, the waste of a dissolving agent can be avoided, and the fishing efficiency and the success rate are improved. The device has the advantages of simple structure, convenient construction, safety and environmental protection.
Description
Technical field
The present invention relates to a kind of restriction choke packing element lytic agent delivery device, belong to natural gas well production technique field.
Background technology
In gas exploitation course, in order to step-down, throttling and limited production, usually throw in underground throttle device in the wellbore, what revive Sulige gas field extensive use is slip-type underground throttle.Underground throttle device, by steel wire operation, is delivered to the precalculated position of pit shaft, is fixed by the slips on restriction choke and oil pipe, relies on the annular space of packing element Seal Oil inside pipe wall and restriction choke.Sometimes, restriction choke will be salvaged, to adjust gas well mouth gas production according to the demand of producing.But when salvaging at the scene, the packing element of partial throttling device cannot bounce back, thus the borehole wall and packing element frictional force excessive, break salvaging steel wire, make salvaging failure.
Summary of the invention
The object of the present invention is to provide a kind of restriction choke packing element lytic agent delivery device, to realize the smooth salvaging of restriction choke.
Concrete technology contents of the present invention is as follows:
The connector upper end of this device connects steel wire, lower end connector drum, and is sealed by axial sealing ring.Injection silk hole that cylindrical shell barrel is provided with coupling nut, that sealed by O-ring seal.Cylindrical shell bottom inwall step connects bottom, and bottom is fixed by being through in step, radial pin, and is sealed by sealing ring.Be provided with spring in cylindrical shell, spring upper end connects connector bottom surface, and lower end connects bottom.
This device and restriction choke close contact, can dissolve packing element efficiently, avoid the waste of lytic agent, improves and salvage efficiency and success rate.This apparatus structure is simple, easy construction, safety and environmental protection.
Accompanying drawing explanation
Fig. 1 is restriction choke packing element lytic agent delivery device structural representation.
Detailed description of the invention
Embodiment:
With reference to Fig. 1, embodiments of the invention are further illustrated:
This device comprises main connector 1, axial sealing ring 2, O-ring seal 3, nut 4, spring 5, cylindrical shell 6, sealing ring 7, pin 8 and bottom 9;
Connector 1 upper end connects steel wire, lower end external screw thread connector drum 6, and is sealed by axial sealing ring 2.Injection silk hole that cylindrical shell 6 barrel is provided with coupling nut 4, that sealed by O-ring seal 3, cylindrical shell 6 bottom inwall step connects bottom 9, and bottom 9 is fixed by being through in step, radial pin 8, and is sealed by sealing ring 7.Be provided with spring 5 in cylindrical shell 6, spring 5 upper end connects connector 1 bottom surface, and lower end connects bottom 9.
The course of work of this device is as follows:
Assembling: the upper end of spring 5 is fixed on connector 1 bottom surface, lower end connects bottom 9, and now, spring 5 is stressed is in extended state.Sealing ring 7 installed by cylindrical shell 6 bottom inwall step, and with pin 8 connector drum 6 and bottom 9.In cylinder, inject appropriate packing element lytic agent from the injection silk hole cylindrical shell 6 barrel, then O-ring seal 3 is installed, tightening nuts 4.
Throw in: this device is thrown in by steel wire operation, and in decentralization process, spring 5 is in extended state all the time.When transferring to the certain position of restriction choke top, jarring delivery tool, cuts off pin 8, spring 5 is bounced back, opens bottom 9, makes packing element lytic agent preset in cylindrical shell 6 flow to restriction choke packing element.After several minutes, propose this device, carry out conventional restriction choke fishing.
Claims (1)
1. a restriction choke packing element lytic agent delivery device, is characterized in that:
Connector (1) upper end of this device connects steel wire, lower end connector drum (6), and is sealed by axial sealing ring (2); Injection silk hole that cylindrical shell (6) barrel is provided with coupling nut 4, that sealed by O-ring seal (3); Cylindrical shell (6) bottom inwall step connects bottom (9), and bottom (9) is fixed by being through in step, radial pin (8), and is sealed by sealing ring (7); Be provided with spring (5) in cylindrical shell (6), spring (5) upper end connects connector (1) bottom surface, and lower end connects bottom (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310449879.3A CN104514528B (en) | 2013-09-27 | 2013-09-27 | Choke ware packing element dissolving agent input device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310449879.3A CN104514528B (en) | 2013-09-27 | 2013-09-27 | Choke ware packing element dissolving agent input device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104514528A true CN104514528A (en) | 2015-04-15 |
| CN104514528B CN104514528B (en) | 2017-04-05 |
Family
ID=52790355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310449879.3A Active CN104514528B (en) | 2013-09-27 | 2013-09-27 | Choke ware packing element dissolving agent input device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104514528B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812248A (en) * | 2019-02-28 | 2019-05-28 | 中国石油天然气股份有限公司 | Soluble restrictor and method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110173616A (en) * | 2019-05-05 | 2019-08-27 | 中国石油天然气股份有限公司 | Lubricating resistance-reducing fishing method for injection cylinder and underground choke |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87206291U (en) * | 1987-04-14 | 1988-01-20 | 长庆石油勘探局测井公司 | Isotope underwell releasing instrument |
| CN86106244A (en) * | 1986-09-15 | 1988-03-30 | 大庆石油管理局采油技术服务公司 | Down-hole localized releasing apparatus for isotope carrier |
| CN2161722Y (en) * | 1993-08-24 | 1994-04-13 | 大庆石油管理局第一采油厂 | Isotope releasing device for survey of borehole or well |
| US20050205264A1 (en) * | 2004-03-18 | 2005-09-22 | Starr Phillip M | Dissolvable downhole tools |
| CN202152667U (en) * | 2011-08-01 | 2012-02-29 | 中国石油天然气股份有限公司 | Underground delivery device for oilfield chemical agent |
| US20120125630A1 (en) * | 2010-11-22 | 2012-05-24 | Halliburton Energy Services, Inc. | Retrievable swellable packer |
| CN203515490U (en) * | 2013-09-27 | 2014-04-02 | 中国石油天然气股份有限公司 | Choke ware packing element dissolving agent input device |
-
2013
- 2013-09-27 CN CN201310449879.3A patent/CN104514528B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106244A (en) * | 1986-09-15 | 1988-03-30 | 大庆石油管理局采油技术服务公司 | Down-hole localized releasing apparatus for isotope carrier |
| CN87206291U (en) * | 1987-04-14 | 1988-01-20 | 长庆石油勘探局测井公司 | Isotope underwell releasing instrument |
| CN2161722Y (en) * | 1993-08-24 | 1994-04-13 | 大庆石油管理局第一采油厂 | Isotope releasing device for survey of borehole or well |
| US20050205264A1 (en) * | 2004-03-18 | 2005-09-22 | Starr Phillip M | Dissolvable downhole tools |
| US20120125630A1 (en) * | 2010-11-22 | 2012-05-24 | Halliburton Energy Services, Inc. | Retrievable swellable packer |
| CN202152667U (en) * | 2011-08-01 | 2012-02-29 | 中国石油天然气股份有限公司 | Underground delivery device for oilfield chemical agent |
| CN203515490U (en) * | 2013-09-27 | 2014-04-02 | 中国石油天然气股份有限公司 | Choke ware packing element dissolving agent input device |
Non-Patent Citations (2)
| Title |
|---|
| 卫亚明等: "单胶筒防下滑井下节流装置的研制与应用", 《石油机械》 * |
| 肖述琴等: "井下节流器用气举打捞工具研制与应用", 《石油矿场机械》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812248A (en) * | 2019-02-28 | 2019-05-28 | 中国石油天然气股份有限公司 | Soluble restrictor and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104514528B (en) | 2017-04-05 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |