CN201165860Y - Pipe inner blowout preventer - Google Patents
Pipe inner blowout preventer Download PDFInfo
- Publication number
- CN201165860Y CN201165860Y CNU2007201590162U CN200720159016U CN201165860Y CN 201165860 Y CN201165860 Y CN 201165860Y CN U2007201590162 U CNU2007201590162 U CN U2007201590162U CN 200720159016 U CN200720159016 U CN 200720159016U CN 201165860 Y CN201165860 Y CN 201165860Y
- Authority
- CN
- China
- Prior art keywords
- pipe
- forcing pipe
- seat
- cone
- forcing
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract 1
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000003129 oil well Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 3
- 239000010779 crude oil Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model relates to an in-pipe well plugging device, which comprises a seat sealing forcing pipe, a fixing pipe, an upper sealing forcing pipe, an outer pipe, a lower sealing forcing pipe, a central pipe, a one-way valve, pressurizing rings, a sealing rubber pipe, a pressure bearing ring, an upper pressure ring, a return spring, a lower pressure ring, a pipe slip, a seat sealing cone and a limit cone, wherein the upper part of the central pipe is connected with the seat sealing forcing pipe, the lower part of the central pipe is connected with the seat sealing cone, the one-way valve is installed in the inner cavity, the outside of the central pipe is connected with the outer pipe, the upper part of the outer pipe is connected with the fixing pipe, the outer upper part of the fixing pipe is connected with the lower sealing forcing pipe, the outer lower part of the fixing pipe is connected with the upper pressure ring and the lower pressure ring, the upper end of the lower sealing forcing pipe is connected with the upper sealing forcing pipe, the pipe slip and the return spring are installed between the upper pressure ring and the lower pressure ring, the inner surface of the pipe slip is matched with the seat sealing cone, pressurizing rings and at least a sealing rubber pipe are respectively arranged between the outer part of the outer pipe, and the lower sealing forcing pipe and the upper pressure ring in sequence. The in-pipe well plugging device can be widely applied to the downhole operation process of petroleum extraction.
Description
One, technical field
The utility model relates to packer, blowout preventer in the employed pipe in particularly a kind of producing well.
Two, background technology
At present, employed packing device has downhole packer and well head packer on the producing well, downhole packer is used for oil-separating layer, generally connect G.I.H by oil pipe, down after projected depth, ground utilize cementing truck suppress seat envelope or on, following handling tubing string utilizes oil pipe own wt seat envelope, when oil well stops production closing well for a long time, oil well adopts tube drawing shut-in well mode usually, this moment, conventional packer can't G.I.H, only take the well head blowout preventer, but the well head blowout preventer also exists following shortcoming or deficiency: 1. the oil well off-time one is long, the interior liquid of well rose to well head when borehole pressure recovered higher, because the lawless person often destroys, the sleeve pipe that expose on ground is opened or cut off to the shut-in well device, make oil well be difficult to seal, crude oil ejection in the well causes surface pollution in large area, makes the oil field cause the crude oil loss, also will bear liability for polution and be imposed a fine.2. brought very big workload to administrative staff, shunt in a well again and remove work such as ground pollution.
Three, summary of the invention
The purpose of this utility model provides blowout preventer in a kind of improved pipe, adopts the structure of well head below shut-in well, solves long-term dead well effectively and closes the difficult problem of well shut-in well temporarily.
Blowout preventer in the pipe described in the utility model, comprise seat envelope forcing pipe, stationary pipes, last sealing forcing pipe, outer tube, the lower seal forcing pipe, central tube, one way valve, pressure rings, cartridge, bearing ring, upper press ring, return spring, following pressure ring, slips, seat envelope cone, spacing cone, described central tube top is connected with seat envelope forcing pipe, the bottom is connected with seat envelope cone, inner chamber is equipped with one way valve, central tube is outer to link to each other with outer tube, the top of this outer tube is connected with stationary pipes, the outer top of stationary pipes is connected with the lower seal forcing pipe, outer bottom is connected with following pressure ring with upper press ring, lower seal forcing pipe upper end is connected with last sealing forcing pipe, described slips and return spring are installed between upper press ring and the following pressure ring, the inner surface of slips matches with seat envelope cone, outside the described outer tube, pressure rings and at least one cartridge are installed between lower seal forcing pipe and the upper press ring in turn.
Wherein, described central tube lower end is provided with outer lug boss, and seat envelope cone flap seat is on it.Described central tube external surface is provided with positioning track, and the pressure rings installed inside wherein.Described seat envelope cone is the cavity type structure, and spacing cone is installed in it.The upper end of described seat envelope forcing pipe and last sealing forcing pipe is installed on pressurized handgrip.Described one way valve comprises valve seat and the spring base that is connected with central tube, and valve ball and spring are installed between valve seat and the spring base in turn.
The utility model has following advantage compared with prior art:
1, adopts shut-in well mechanism in the well, a shut-in well difficult problem that solves long-term dead well effectively and close well temporarily.
2, the environment pollution of avoiding lawless person's destruction and pilferage effectively and causing.
3, simple in structure, easy to operate, safe, reliable.
Four, description of drawings
Fig. 1 is a kind of structural representation of the present utility model,
Fig. 2 seals the forcing pipe structural representation for pressing shown in Figure 1 going up,
Fig. 3 is by structure schematic top plan view shown in Figure 2,
Fig. 4 is by outer tube structure schematic diagram shown in Figure 1,
Fig. 5 is by structure schematic top plan view shown in Figure 4,
Fig. 6 is by stationary pipes structural representation shown in Figure 1,
Fig. 7 is for pressing structure schematic top plan view shown in Figure 6.
Five, the specific embodiment
Blowout preventer in a kind of pipe, comprise seat envelope forcing pipe, stationary pipes, last sealing forcing pipe, outer tube, the lower seal forcing pipe, central tube, one way valve, pressure rings, cartridge, bearing ring, upper press ring, return spring, following pressure ring, slips, seat envelope cone, spacing cone, central tube 6 tops are connected with seat envelope forcing pipe 1, the bottom is connected with seat envelope cone 19, inner chamber is equipped with one way valve, link to each other with outer tube 4 outside the central tube 6, the top of this outer tube is connected with stationary pipes 2, stationary pipes 2 outer tops are connected with lower seal forcing pipe 5, outer bottom is connected with following pressure ring 17 with upper press ring 15, lower seal forcing pipe 5 upper ends are connected with last sealing forcing pipe 3, slips 18 and return spring 16 are installed between upper press ring and the following pressure ring, the inner surface of slips 18 matches with seat envelope cone 19, outside the outer tube 4, pressure rings 12 and at least one cartridge 13 (being expressed as two among the figure) are installed between lower seal forcing pipe 5 and the upper press ring 15 in turn.
During use, down in the sleeve pipe at the following 2m of well head place, instantly after projected depth, fixedly the suspended tubes top with big flange screw fixedly suspended tubes 2 be fixed on the big flange of sleeve pipe, outer tube 4 can not be moved up and down.Seat envelope step is as follows: 1, pressurize downwards by seat envelope forcing pipe 1, and it is mobile that its drive central tube 6 that turns clockwise is rotated up, and central tube drives on the seat envelope cone 19 and moves, with slips 18 distendings, the slip insert in the slips outside is clamped on the internal surface of sleeve pipe, forms fulcrum.2, by last sealing forcing pipe 3 pressurizations, its drive lower seal forcing pipe 5 rotations that turn clockwise are moved down, the lower seal forcing pipe promotes pressure rings 12 and moves down, because this moment, slips 18 was fixing, upper press ring 15 has been fixed and can not have moved, and fixes at pressure rings 12 and slips, under the effect of upper press ring 15, two cartridge 13 is pressed expand, cartridge and internal surface of sleeve pipe closely cooperate and form sealing, finish the seat envelope.3, after seat envelope is finished, at first upwards propose a seat envelope forcing pipe 1, dismantle stationary pipes 2 again, promote to be rotated counterclockwise stationary pipes after the stationary pipes 2 downwards and to the position that is hampered, carry, stationary pipes can be proposed well head.Upwards propose to go up sealing forcing pipe 3 at last, seat envelope process is all finished.When needs were closely pulled in the well shut-in well device out, the deblocking step was as follows: 1, will go up sealing forcing pipe 3 G.I.Hs.2, stationary pipes 2 is lowered to slowly rotation in the sealing forcing pipe, treats that stationary pipes moves down and is connected the back with outer tube 4 and pushes away down, turn clockwise after on earth be hampered after on carry, on carry and fixing with screw at well head after being hampered.3, the seat of honour is sealed forcing pipe 1 and be lowered in the stationary pipes 2, slowly rotation makes it dock with central tube 6 tops.4, slowly sealing forcing pipe 3 is gone up in rotation, after making it and lower seal forcing pipe 5 docking, be rotated counterclockwise to drive on the lower seal forcing pipe and move, the cartridge contraction 13 this moment of pressurized promotes to move on the forcing pipe 3, cartridge 13 restores to the original state substantially, makes sleeve pipe UNICOM up and down.5, be rotated counterclockwise seat envelope forcing pipe 1, driving central tube 6 moves down, central tube bottom outer lug boss 21 promotes spacing cone 20, driving seat envelope pressurization cone 19 moves down, slips 18 is got back to original position under the effect of return spring 16, lose support with sleeve pipe, deblocking is finished, and shut-in well device in the well can be proposed well head.
Claims (6)
1, blowout preventer in a kind of pipe, comprise seat envelope forcing pipe, stationary pipes, last sealing forcing pipe, outer tube, the lower seal forcing pipe, central tube, one way valve, pressure rings, cartridge, bearing ring, upper press ring, return spring, following pressure ring, slips, seat envelope cone, spacing cone, it is characterized in that described central tube top is connected with seat envelope forcing pipe, the bottom is connected with seat envelope cone, inner chamber is equipped with one way valve, central tube is outer to link to each other with outer tube, the top of this outer tube is connected with stationary pipes, the outer top of stationary pipes is connected with the lower seal forcing pipe, outer bottom is connected with following pressure ring with upper press ring, lower seal forcing pipe upper end is connected with last sealing forcing pipe, described slips and return spring are installed between upper press ring and the following pressure ring, the inner surface of slips matches with seat envelope cone, outside the described outer tube, pressure rings and at least one cartridge are installed between lower seal forcing pipe and the upper press ring in turn.
2, blowout preventer in the pipe according to claim 1 is characterized in that described central tube lower end is provided with outer lug boss, and seat envelope cone flap seat is on it.
3, blowout preventer in the pipe according to claim 1 is characterized in that described central tube external surface is provided with positioning track, and the pressure rings installed inside wherein.
4, blowout preventer in the pipe according to claim 1 and 2 is characterized in that described seat envelope cone is the cavity type structure, and spacing cone is installed in it.
5, blowout preventer in the pipe according to claim 1 is characterized in that the upper end of described seat envelope forcing pipe and last sealing forcing pipe is installed on pressurized handgrip.
6, blowout preventer in the pipe according to claim 1 is characterized in that described one way valve comprises valve seat and the spring base that is connected with central tube, is equipped with valve ball and spring in turn between valve seat and the spring base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201590162U CN201165860Y (en) | 2007-12-11 | 2007-12-11 | Pipe inner blowout preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201590162U CN201165860Y (en) | 2007-12-11 | 2007-12-11 | Pipe inner blowout preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201165860Y true CN201165860Y (en) | 2008-12-17 |
Family
ID=40191246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201590162U Expired - Fee Related CN201165860Y (en) | 2007-12-11 | 2007-12-11 | Pipe inner blowout preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201165860Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832123A (en) * | 2015-04-28 | 2015-08-12 | 中国石油天然气股份有限公司 | Manual blowout prevention device |
| CN107701142A (en) * | 2017-10-21 | 2018-02-16 | 中国石油集团渤海钻探工程有限公司 | A kind of testing pressure of well head rotary sealing type casing blanking plug |
-
2007
- 2007-12-11 CN CNU2007201590162U patent/CN201165860Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104832123A (en) * | 2015-04-28 | 2015-08-12 | 中国石油天然气股份有限公司 | Manual blowout prevention device |
| CN104832123B (en) * | 2015-04-28 | 2017-05-10 | 中国石油天然气股份有限公司 | Manual blowout prevention device |
| CN107701142A (en) * | 2017-10-21 | 2018-02-16 | 中国石油集团渤海钻探工程有限公司 | A kind of testing pressure of well head rotary sealing type casing blanking plug |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201269076Y (en) | Bidirectional slip packer | |
| CN101781977A (en) | Bidirectional high-pressure detachable bridge plug | |
| CN103321604A (en) | Packer with safety valve | |
| CN201963249U (en) | Water injection packer capable of being used for washing well | |
| CN201396103Y (en) | Packer | |
| CN203383772U (en) | Packer with safety valve | |
| CN201165860Y (en) | Pipe inner blowout preventer | |
| CN203961936U (en) | A kind of thermal recovery card envelope instrument of sand control stop-off steam injection | |
| CN110965958B (en) | Bidirectional seat sealing anti-backflow packer | |
| CN206917631U (en) | Can bore can drag for the anti-pollution packer of horizontal well | |
| CN2837504Y (en) | Water-proof oil recovery packer | |
| CN211874442U (en) | Lifting, pressurizing and unsetting expansion type packer | |
| CN201344009Y (en) | Anti-theft controllable well plugging device | |
| CN202381032U (en) | Permanent packer for hydraulic base seal | |
| CN101839117A (en) | Annulus safety valve | |
| CN201190546Y (en) | Backing type suspension unit special for release | |
| CN212508170U (en) | Tail pipe linkage exempts from to back-off | |
| CN202348212U (en) | Annular hydraulic compression type packer | |
| CN202850935U (en) | Y521 packer | |
| CN108661569B (en) | Environment-friendly multifunctional oil extraction process tubular column | |
| CN111271021B (en) | Anchoring type leak finding and string checking packer | |
| CN102200001B (en) | A two-way slip packer | |
| CN2660108Y (en) | Double balance cylinder compression packer | |
| CN115095303A (en) | Underground liquid control device and using method thereof | |
| CN201037391Y (en) | Deep layer anti-theft high-pressure resistant exhaust double-layer oil-water-gas well sealing equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081217 Termination date: 20100111 |