CN201031647Y - Stop production well head packer - Google Patents
Stop production well head packer Download PDFInfo
- Publication number
- CN201031647Y CN201031647Y CNU2007200227839U CN200720022783U CN201031647Y CN 201031647 Y CN201031647 Y CN 201031647Y CN U2007200227839 U CNU2007200227839 U CN U2007200227839U CN 200720022783 U CN200720022783 U CN 200720022783U CN 201031647 Y CN201031647 Y CN 201031647Y
- Authority
- CN
- China
- Prior art keywords
- slips
- well
- cone
- rubber cylinder
- rotary pipe
- 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
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Abstract
The utility model relates to a dead well head stopper. The under part of a connecting pipe is connected with the upper part of a slips supporter. The outer threads of the middle part of a rotary pipe are connected with the slips supporter threads. The stopper is arranged at the upper part of the rotary pipe; a rubber cylinder seat is arranged at the under part of the rotary pipe; a rubber cylinder cover is arranged on the top of the rubber cylinder seat; the upper of the rubber cylinder is a cone and the slips is between the cone and the slips. The upper part of the connecting pipe is suspended on the top of a sleeve joint, the rotary pipe is fit to the connection threads of the slips when the rotary pipe is rotated. When the rotary pipe moves upwards, the cone, the rubber cylinder and the rubber cylinder seat will move upwards. Under the role of the cone, the slips pushes off an anchor to fix on the sleeve; the rubber cylinder is compressed and expanded to seal sleeves. And under the role of the stopping devices, a passage of inner well is blocked completely to enable the dead well under control and no out of control. When the dead well is needed to recover production, the stopping devices are pressing down to discharge pressure of the inner well. After the reassembly of the utility model, the operation of the well and well production can recover.
Description
One, technical field
The utility model is a kind of device of oil well mouth usefulness, is a kind of dead well well head blanking plug.
Two, background technology
All there are some abandoned wells, long-term dead well in each oil field, treat well workover, and these wells are because will be through the off-time of certain hour, and wellhead assembly is all stolen easily, after the off-time is long, borehole pressure rises, and borehole fluid can flow out well head, can occur crude oil on the one hand and run off, also might cause blowout, major accident occurs, also environment pollution can occur on the other hand, also can fall into object on the one hand again, cause that oil well scraps, cause heavy economic losses.
Three, summary of the invention
The purpose of this utility model is a kind of dead well well head blanking plug of design, makes abandoned well, long-term dead well, treats that well workover is controlled, avoids economic loss.
The purpose of this utility model is achieved in that by connecting tube, blocking device, swinging head, slips holder, slips, cone, packing element, glue tube base to be formed.The connecting tube bottom connects with slips holder top, the external screw thread at swinging head middle part and the thread connection of slips holder, blocking device is installed in the top of swinging head, shoulder is arranged at the bottom of swinging head, glue tube base is sleeved on the swinging head bottom, and the seat on the shoulder of swinging head bottom, packing element is sleeved on the glue tube base, be cone on the packing element, between cone and the slips holder slips arranged.
The beneficial effects of the utility model are: after the utility model is installed in the dead well well head, make dead well be in state of a control, the generation of out-of-control condition can not occur, make abandoned well, long-term dead well, treat that well workover is controlled, borehole fluid can not flow out well head, can not occur crude oil on the one hand runs off, gas blowout accident can not occur, environment pollution can not occur yet, can not fall into object, cause that oil well scraps, can avoid heavy economic losses.
Four, description of drawings
Accompanying drawing is the assembling drawing of the utility model embodiment.
Five, the specific embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described.
Form by connecting tube 1, blocking device 2, swinging head 3, slips holder 4, slips 5, cone 6, packing element 7, glue tube base 8.Connecting tube 1 bottom connects with slips holder 4 tops, the external screw thread at swinging head 3 middle parts and the thread connection of slips holder 4, blocking device 2 is installed in the top of swinging head 3, shoulder is arranged at the bottom of swinging head 3, glue tube base 8 is sleeved on swinging head 3 bottoms, and the seat on the shoulder of swinging head 3 bottoms, packing element 7 is sleeved on the glue tube base 8, be cone 6 on the packing element 7, between cone 6 and the slips holder 4 slips 5 arranged.
The utility model is installed in the dead well well head, the upper suspension of connecting tube 1 is in casing joint, rotate swinging head 3 with special tool, swinging head 3 screws with the screw thread that connects of slips holder 4, because slips holder 4 maintains static, therefore, when rotating swinging head 3, swinging head 3 moves up, under the shoulder effect of rotating swinging head 3 bottoms, cone 6, packing element 7, glue tube base 8 moves up, and under the effect of cone 6, slips 5 struts and is anchored on the sleeve pipe, continue rotation swinging head 3, slips 5, cone 6 is motionless, and the distance between cone 6 and the glue tube base 8 shortens, and packing element 7 is compressed the expansion Sealed casing pipe, again under the effect of blocking device 2, the well internal channel is stopped up fully, makes dead well be in state of a control, the generation of out-of-control condition can not occur.When needs operation well workover is resumed production, to the lower compression blocking device, borehole pressure is discharged, pulling down the utility model again just can workover treatment, the recovery oil well production.
Claims (1)
1. dead well well head blanking plug, by connecting tube (1), blocking device (2), swinging head (3), slips holder (4), slips (5), cone (6), packing element (7), glue tube base (8) is formed, it is characterized in that: connecting tube (1) bottom connects with slips holder (4) top, the external screw thread at swinging head (3) middle part and the thread connection of slips holder (4), blocking device (2) is installed in the top of swinging head (3), shoulder is arranged at the bottom of swinging head (3), glue tube base (8) is sleeved on swinging head (3) bottom, and seat is on the shoulder of swinging head (3) bottom, packing element (7) is sleeved on the glue tube base (8), be cone (6) on the packing element (7), between cone (6) and the slips holder (4) slips (5) arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200227839U CN201031647Y (en) | 2007-06-01 | 2007-06-01 | Stop production well head packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200227839U CN201031647Y (en) | 2007-06-01 | 2007-06-01 | Stop production well head packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201031647Y true CN201031647Y (en) | 2008-03-05 |
Family
ID=39163539
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200227839U Expired - Fee Related CN201031647Y (en) | 2007-06-01 | 2007-06-01 | Stop production well head packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201031647Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900385A (en) * | 2012-11-06 | 2013-01-30 | 中国石油天然气股份有限公司 | Over chuck distance steel wire operation slip plug |
| CN104005728A (en) * | 2014-03-14 | 2014-08-27 | 大庆市慧灵石油科技有限公司 | Well sealer for controllable well |
-
2007
- 2007-06-01 CN CNU2007200227839U patent/CN201031647Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900385A (en) * | 2012-11-06 | 2013-01-30 | 中国石油天然气股份有限公司 | Over chuck distance steel wire operation slip plug |
| CN104005728A (en) * | 2014-03-14 | 2014-08-27 | 大庆市慧灵石油科技有限公司 | Well sealer for controllable well |
| CN104005728B (en) * | 2014-03-14 | 2016-06-22 | 大庆市慧灵石油科技有限公司 | A kind of controlled well blowout preventer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |