CN105221095A - Gas well blocking device - Google Patents
Gas well blocking device Download PDFInfo
- Publication number
- CN105221095A CN105221095A CN201510735392.0A CN201510735392A CN105221095A CN 105221095 A CN105221095 A CN 105221095A CN 201510735392 A CN201510735392 A CN 201510735392A CN 105221095 A CN105221095 A CN 105221095A
- Authority
- CN
- China
- Prior art keywords
- pole
- center
- piston
- main body
- tightening nut
- 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
Links
Abstract
The invention discloses one and salvage Gas well blocking device easily, comprise: main body, piston is provided with in the inner chamber of described main body, some O RunddichtringOs are provided with between described piston and the inwall of main body, the lower end of described piston is provided with conical head, the inside, upper end of described piston is provided with installation cavity, center-pole is provided with in described installation cavity, the lower end of described center-pole is provided with locking sliding block, described center-pole is provided with the locking chute that locking sliding block cooperatively interacts, the threaded upper ends of described center-pole is connected with guide shoe, the upper end of described guide shoe is provided with the head that is threaded, the top of described center-pole is provided with pin hole, the upper outside of described center-pole is provided with back tightening nut, the lower end of described back tightening nut is connected with the upper end inner thread of piston, the upper end of described back tightening nut is connected with the upper end of center-pole by shear pin.
Description
Technical field
The present invention relates to a kind of drilling equipment, particularly relate to a kind of Gas well blocking device.
Background technology
At present, gas well is one of main direction becoming Global Oil and Gas Resources, and gas well Operating Pressure requires the carrying out ensureing that construction can be safe under slave mode, relative oil-water well, gas well Operating Pressure has more risk, requires higher to the sealing performance of equipment and personnel's construction safety.During gas well band press operation, the main ball-and-seat that uses prevents mine gas from revealing, because the pressure of mine gas is larger at present, general at about 4 tons, ball-and-seat in use can not prevent gas from occurring leaking completely, and gas leakage is not easy to be found, and affects the job safety of gas well.
Summary of the invention
Technical problem to be solved by this invention is: provide one to salvage Gas well blocking device easily.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: Gas well blocking device, comprise: main body, piston is provided with in the inner chamber of described main body, some O RunddichtringOs are provided with between described piston and the inwall of main body, the lower end of described piston is provided with conical head, the inside, upper end of described piston is provided with installation cavity, center-pole is provided with in described installation cavity, the lower end of described center-pole is provided with locking sliding block, described center-pole is provided with the locking chute that locking sliding block cooperatively interacts, the threaded upper ends of described center-pole is connected with guide shoe, the upper end of described guide shoe is provided with the head that is threaded, the top of described center-pole is provided with pin hole, the upper outside of described center-pole is provided with back tightening nut, the lower end of described back tightening nut is connected with the upper end inner thread of piston, the upper end of described back tightening nut is connected with the upper end of center-pole by shear pin.
Advantage of the present invention is: above-mentioned Gas well blocking device, and good sealing effect can effectively prevent mine gas from revealing, and it is convenient to salvage, and power of salvaging is little, safe and reliable, ensures the job safety of gas well.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of Gas well blocking device of the present invention.
In figure: 1, main body, 2, inner chamber, 3, piston, 4, O RunddichtringO, 5, conical head, 6, installation cavity, 7, center-pole, 8, locking sliding block, 10, guide shoe, 11, be threaded head, 12, pin hole, 13, back tightening nut, 14, shear pin, 15, top connection, 16, lower contact.
Detailed description of the invention
Particular content of the present invention is described in detail below in conjunction with the drawings and specific embodiments.
As shown in Figure 1, Gas well blocking device, comprise: main body 1, piston 3 is provided with in the inner chamber 2 of described main body 1, some O RunddichtringOs 4 are provided with between described piston 3 and the inwall of main body 1, the lower end of described piston 3 is provided with conical head 5, the inside, upper end of described piston 3 is provided with installation cavity 6, center-pole 7 is provided with in described installation cavity 6, the lower end of described center-pole 7 is provided with locking sliding block 8, described center-pole 7 is provided with the locking chute that locking sliding block 8 cooperatively interacts, the threaded upper ends of described center-pole 7 is connected with guide shoe 10, the upper end of described guide shoe 10 is provided with the head 11 that is threaded, the top of described center-pole 7 is provided with pin hole 12, the upper outside of described center-pole 7 is provided with back tightening nut 13, the lower end of described back tightening nut 13 is connected with the upper end inner thread of piston 3, the upper end of described back tightening nut 13 is connected by the upper end of shear pin 14 with center-pole 7.
When above-mentioned Gas well blocking device uses, the top connection 15 being arranged on main body 1 upper end is connected with oil pipe, the lower contact 16 being arranged on main body 1 lower end is connected with the related tool such as oil pipe, screen casing, the head 11 that is threaded of guide shoe 10 upper end is connected with fisher, above-mentioned Gas well blocking device can bear the top power of more than 4 tons after going into the well, good sealing effect, can effectively prevent mine gas from revealing.When needing to salvage, fisher uses the power of about 300 kilograms, pull guide shoe 10, guide shoe 10 pulls center-pole 7 pairs of shear pins 14 to shear, after shear pin 14 is sheared, center-pole 7 and back tightening nut 13 are thrown off, and the lower end of center-pole 7 pulls locking sliding block 8 to skid off from locking chute, thus center-pole 7 is pulled out from main body 1, realize the fishing operation of guide shoe 10 and center-pole 7.
Above-mentioned Gas well blocking device, good sealing effect, can effectively prevent mine gas from revealing, and it is convenient to salvage, and power of salvaging is little, safe and reliable, ensures the job safety of gas well.
Claims (1)
1. Gas well blocking device, it is characterized in that: comprising: main body (1), piston (3) is provided with in the inner chamber (2) of described main body (1), some O RunddichtringOs (4) are provided with between described piston (3) and the inwall of main body (1), the lower end of described piston (3) is provided with conical head (5), the inside, upper end of described piston (3) is provided with installation cavity (6), center-pole (7) is provided with in described installation cavity (6), the lower end of described center-pole (7) is provided with locking sliding block (8), described center-pole (7) is provided with the locking chute that locking sliding block (8) cooperatively interacts, the threaded upper ends of described center-pole (7) is connected with guide shoe (10), the upper end of described guide shoe (10) is provided with the head that is threaded (11), the top of described center-pole (7) is provided with pin hole (12), the upper outside of described center-pole (7) is provided with back tightening nut (13), the lower end of described back tightening nut (13) is connected with the upper end inner thread of piston (3), the upper end of described back tightening nut (13) is connected by the upper end of shear pin (14) with center-pole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735392.0A CN105221095A (en) | 2015-11-03 | 2015-11-03 | Gas well blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510735392.0A CN105221095A (en) | 2015-11-03 | 2015-11-03 | Gas well blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105221095A true CN105221095A (en) | 2016-01-06 |
Family
ID=54990319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510735392.0A Pending CN105221095A (en) | 2015-11-03 | 2015-11-03 | Gas well blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105221095A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120086A (en) * | 2017-06-23 | 2017-09-01 | 中国科学院武汉岩土力学研究所 | A kind of erosion control hole plug device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089548A (en) * | 1976-10-12 | 1978-05-16 | The Dow Chemical Company | Hydraulic releasing tool with plug |
| US4877085A (en) * | 1988-12-27 | 1989-10-31 | Pullig Jr Joe G | Manually operated spear apparatus |
| US5148868A (en) * | 1991-08-12 | 1992-09-22 | Christian J B | Method and apparatus for perforating tubing |
| CN201627572U (en) * | 2010-02-25 | 2010-11-10 | 中国石油天然气股份有限公司 | Downhole choke |
| CN203835323U (en) * | 2014-04-25 | 2014-09-17 | 中国石油化工股份有限公司华东分公司采油厂 | Packer capable of being taken out |
| CN204002734U (en) * | 2014-05-23 | 2014-12-10 | 西安金立石油科技有限公司 | A kind of pneumatic setting restriction choke |
| CN204371262U (en) * | 2014-12-10 | 2015-06-03 | 中国石油天然气股份有限公司 | A kind of balancing throttle device |
| CN205154093U (en) * | 2015-11-03 | 2016-04-13 | 江苏省金峰石油机械制造有限公司 | Gas well blanking plug |
-
2015
- 2015-11-03 CN CN201510735392.0A patent/CN105221095A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4089548A (en) * | 1976-10-12 | 1978-05-16 | The Dow Chemical Company | Hydraulic releasing tool with plug |
| US4877085A (en) * | 1988-12-27 | 1989-10-31 | Pullig Jr Joe G | Manually operated spear apparatus |
| US5148868A (en) * | 1991-08-12 | 1992-09-22 | Christian J B | Method and apparatus for perforating tubing |
| CN201627572U (en) * | 2010-02-25 | 2010-11-10 | 中国石油天然气股份有限公司 | Downhole choke |
| CN203835323U (en) * | 2014-04-25 | 2014-09-17 | 中国石油化工股份有限公司华东分公司采油厂 | Packer capable of being taken out |
| CN204002734U (en) * | 2014-05-23 | 2014-12-10 | 西安金立石油科技有限公司 | A kind of pneumatic setting restriction choke |
| CN204371262U (en) * | 2014-12-10 | 2015-06-03 | 中国石油天然气股份有限公司 | A kind of balancing throttle device |
| CN205154093U (en) * | 2015-11-03 | 2016-04-13 | 江苏省金峰石油机械制造有限公司 | Gas well blanking plug |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107120086A (en) * | 2017-06-23 | 2017-09-01 | 中国科学院武汉岩土力学研究所 | A kind of erosion control hole plug device |
| CN107120086B (en) * | 2017-06-23 | 2022-12-13 | 中国科学院武汉岩土力学研究所 | Anti-punching hole blocking device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104494836B (en) | Small aircraft fuel tank draining valve switch | |
| CN104047551B (en) | Novel flange quick locking device | |
| CN204785477U (en) | Simple and easy jettison gear | |
| CN205154093U (en) | Gas well blanking plug | |
| CN105221095A (en) | Gas well blocking device | |
| CN106121578A (en) | Multifunctional pumping rod preventer | |
| CN104213848B (en) | A kind of arc sealing device and using method for pipeline with pressure or drilling rod perforate | |
| CN204024591U (en) | Horizontal well casing pressure is opened reverse circulation valve | |
| CN104295264B (en) | Adherent concealed brill blind plate cementing device | |
| CN207583352U (en) | Slim-hole perforation loses gun apparatus with high intensity pitching | |
| CN102966322A (en) | Method for dropping and fishing tubing plug | |
| CN204098834U (en) | A kind of oil tube anchor device | |
| CN108316885A (en) | A kind of bridge plug with combination packing element | |
| CN104587624A (en) | Underground rescue fisher | |
| CN104373055B (en) | A kind of drill rod connector | |
| US20150252647A1 (en) | Stress-buffer release lever and downhole plugging apparatus | |
| CN207363643U (en) | A kind of blowout prevention draining instrument | |
| CN205743833U (en) | A kind of high pressure VR blocks up | |
| CN207715116U (en) | A kind of packer and its lock claw set | |
| CN204563371U (en) | Underground rescue fisher | |
| CN105201443A (en) | Oil pipe inner stopper for putting steel wires | |
| CN204024555U (en) | Automatic decompression type hydraulic pressure fishing gear | |
| CN203476264U (en) | Recoverable drill-down blocking device in oil and gas field | |
| CN207961534U (en) | Container value | |
| CN103089229B (en) | Can acid fracturing pipe column ball seat capable of fishing and being used repeatedly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160106 |
|
| WD01 | Invention patent application deemed withdrawn after publication |