CN205154093U - Gas well blanking plug - Google Patents
Gas well blanking plug Download PDFInfo
- Publication number
- CN205154093U CN205154093U CN201520866741.8U CN201520866741U CN205154093U CN 205154093 U CN205154093 U CN 205154093U CN 201520866741 U CN201520866741 U CN 201520866741U CN 205154093 U CN205154093 U CN 205154093U
- Authority
- CN
- China
- Prior art keywords
- piston
- centibar
- pole
- center
- gas well
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a salvage convenient gas well blanking plug, include: the main part be provided with the piston in the inner chamber of main part be provided with a plurality of O type sealing washers between the inner wall of piston and main part the lower extreme of piston is provided with conical head the inside installation cavity that is provided with in upper end of piston be provided with the centibar in the installation cavity the lower extreme of centibar is provided with locking slide be provided with the locking spout that locking slide mutually supported on the centibar, the last end screw thread connection of centibar has a guide shoe the upper end of guide shoe is provided with the threaded connection head the upper portion of centibar is provided with the cotter hole the upper portion outside of centibar is provided with out -of -the -way jack panel, the lower extreme of back of the body jack panel and the upper end inner wall threaded connection of piston, the upper end of back of the body jack panel is connected through the shearing pin nail upper end with the centibar.
Description
Technical field
The utility model relates to a kind of drilling equipment, particularly relates 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.
Utility model content
Technical problem to be solved in the utility model is: provide one to salvage Gas well blocking device easily.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model 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, in described
The threaded upper ends of core bar 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, and the upper end of described back tightening nut is connected with the upper end of center-pole by shear pin.
The utility model has the advantages that: above-mentioned Gas well blocking device, good sealing effect, can effectively prevent mine gas from revealing, it be 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 the utility model Gas well blocking device.
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 utility model 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 |
|---|---|---|---|
| CN201520866741.8U CN205154093U (en) | 2015-11-03 | 2015-11-03 | Gas well blanking plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520866741.8U CN205154093U (en) | 2015-11-03 | 2015-11-03 | Gas well blanking plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205154093U true CN205154093U (en) | 2016-04-13 |
Family
ID=55689801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520866741.8U Expired - Fee Related CN205154093U (en) | 2015-11-03 | 2015-11-03 | Gas well blanking plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205154093U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221095A (en) * | 2015-11-03 | 2016-01-06 | 江苏省金峰石油机械制造有限公司 | Gas well blocking device |
-
2015
- 2015-11-03 CN CN201520866741.8U patent/CN205154093U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221095A (en) * | 2015-11-03 | 2016-01-06 | 江苏省金峰石油机械制造有限公司 | Gas well blocking device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205154093U (en) | Gas well blanking plug | |
| CN204785477U (en) | Simple and easy jettison gear | |
| 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 | |
| CN201045286Y (en) | Novel test blowout preventer | |
| CN206016753U (en) | Multifunctional pumping rod preventer | |
| CN205532352U (en) | Blanking plug is pressed in area | |
| CN207363643U (en) | A kind of blowout prevention draining instrument | |
| CN107069530A (en) | Portable draw-gear with shock resistance drilling function | |
| CN207568540U (en) | Tubing string hydraulic pressure alters device on preventing | |
| CN202659184U (en) | Reliable releasing device | |
| CN202832328U (en) | Hydraulic anchor capable of being closed mechanically and for fixing tubular columns in oil wells and water wells | |
| CN104587624A (en) | Underground rescue fisher | |
| CN205977160U (en) | Flashboard assembly convenient to detach's coiled tubing preventer | |
| CN200975228Y (en) | Anti-blocking sprayer for test borehole testing | |
| CN205097118U (en) | Hydraulic generator break pin instrument of choosing | |
| CN205743833U (en) | A kind of high pressure VR blocks up | |
| CN203476264U (en) | Recoverable drill-down blocking device in oil and gas field | |
| CN204024555U (en) | Automatic decompression type hydraulic pressure fishing gear | |
| CN204563371U (en) | Underground rescue fisher | |
| CN205100907U (en) | Roller side's bushing device of restricting admittedly | |
| CN203510092U (en) | Chain plate installer of chain | |
| CN204082075U (en) | Preventer and opening device for side door thereof | |
| CN201078211Y (en) | New type testing bulkhead |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20201103 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |