CN203978365U - A kind of safe well control device - Google Patents
A kind of safe well control device Download PDFInfo
- Publication number
- CN203978365U CN203978365U CN201420461998.0U CN201420461998U CN203978365U CN 203978365 U CN203978365 U CN 203978365U CN 201420461998 U CN201420461998 U CN 201420461998U CN 203978365 U CN203978365 U CN 203978365U
- Authority
- CN
- China
- Prior art keywords
- workbench
- blowout
- preventer
- well
- sealing
- 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 - Lifetime
Links
- 238000007789 sealing Methods 0.000 claims abstract description 17
- 241000282326 Felis catus Species 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 230000009194 climbing Effects 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000011282 treatment Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003129 oil well Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- Ladders (AREA)
Abstract
A kind of safe well control device, workbench is by regulating stent support on well head, preventer is fixedly connected on the upper surface of workbench, junction guarantees sealing, the top of rotary flange is connected on the lower surface of workbench, junction guarantees sealing, workbench and preventer coaxial line are installed, self-sealing device is installed on preventer, between well site and workbench, cat ladder is installed, wellbore pressure is low can there is not blowout time, self-sealing device can encase oil pipe and box cupling, scrape tube wall greasy dirt, normal lower oil tube, keep well site clean, when occurring that blowout shows, according to demonstration degree, single disc or double disc or slip system in operation preventer, make it prevent blowout and prevent oil pipe climbing sharply under pressure promotes, make oil-water well obtain security control, can there is not blowout, during burst blowout, can easy operation just can control blowout, be conducive to rob spray, the workbench arranging makes its workman's erect-position height reasonable, easy to operate, the utility model can avoid security incident to occur.
Description
Technical field
The utility model is that oilfield oil well well workover prevents the equipment that blowout operation is used, and is a kind of safe well control device.
Background technology
Oil-water well workover treatment wellbore pressure in early stage is generally lower, does not have the problem of blowout, along with the increase of workover treatment time, pressure in pit shaft rises gradually, may have the problem of blowout, the engineering accident causing for fear of generation blowout, all need to install well control device at well head.Current well control device is by high pressure design, thereby complex structure, and bulky, cost is high, carrying is installed bothersome, needs operational power large, cannot be with manually completing, construction sequence is many, time is long, thereby cost of use is high, can not adapt to all oil-water well workover treatments.The shortcoming that this well control device is larger is to have changed working environment impact, and the operation of operating worker is restricted, and greatly affects job scheduling.
Summary of the invention
The purpose of this utility model is the problem existing in above-mentioned technology, and a kind of safe well control device of low pressure oil well design for there is blowout, makes it light simple, is convenient to install and use, and prevents the blowout that happens suddenly, and avoids accident to occur.
The purpose of this utility model is achieved in that and comprises self-sealing device, preventer, workbench, rotary flange, adjustable support, workbench is supported on well head by four adjustable supports, preventer is fixedly connected on the upper surface of workbench, junction guarantees sealing, the top of rotary flange is connected on the lower surface of workbench, junction guarantees sealing, and workbench and preventer coaxial line are installed, and self-sealing device is installed on preventer.
Between well site and workbench, cat ladder is installed.
The beneficial effects of the utility model are: wellbore pressure is low can there is not blowout time, self-sealing device can encase oil pipe and box cupling, scrape tube wall greasy dirt, normal lower oil tube, keep well site clean, when occurring that blowout shows, according to demonstration degree, single disc or double disc or slip system in operation preventer, make it prevent blowout and prevent oil pipe climbing sharply under pressure promotes, make oil-water well obtain security control, can there is not blowout, the utility model structure is light simple, be convenient to install and use, during burst blowout, can easy operation just can control blowout, be conducive to rob spray, due to simple in structure, workman's operating environment does not change, can not affect job scheduling, the workbench arranging makes its workman's erect-position height reasonable, easy to operate, the utility model can avoid security incident to occur, there is significant economic benefit and social benefit.
Accompanying drawing explanation
Fig. 1 is the assembling drawing of the utility model embodiment.
The specific embodiment
Below in conjunction with Fig. 1, the utility model embodiment is described.
As shown in the figure, embodiment of the present utility model comprises self-sealing device 1, preventer 2, workbench 3, cat ladder 4, rotary flange 5, adjustable support 6, workbench 3 is supported on well head by four adjustable supports 6, four adjustable supports 6 are square layout, stand on around well head, preventer 2 is fixedly connected on the upper surface of workbench 3, junction guarantees sealing, the top of rotary flange 5 is connected on the lower surface of workbench 3, junction guarantees sealing, workbench 3 is installed with preventer 2 coaxial lines, also with well head coaxial line by well workover, self-sealing device 1 is installed on preventer 2.The bottom of rotary flange 5 is connected to by the well head of well workover, and adopting rotary flange is be convenient to and be connected by the wellhead component of well workover, makes the hole aligning of its both erection bolts by rotary flange dish.Between well site and workbench 3, cat ladder 4 is installed, is convenient to workman and walks on workbench.
The height of adjustable support 6 can regulate, and with this, adapts to different well head height, generally adopts spiral adjustment, also can adopt hydraulic pressure adjustment.
Preventer 2 is triple ram preventer or four ram preventers, has full envelope valve, partly seals valve, slip system in it.
Claims (2)
1. a safe well control device, comprise self-sealing device (1), preventer (2), workbench (3), rotary flange (5), adjustable support (6), it is characterized in that: workbench (3) is supported on well head by four adjustable supports (6), preventer (2) is fixedly connected on the upper surface of workbench (3), junction guarantees sealing, the top of rotary flange (5) is connected on the lower surface of workbench (3), junction guarantees sealing, workbench (3) is installed with preventer (2) coaxial line, and self-sealing device (1) is installed on preventer (2).
2. a kind of safe well control device according to claim 1, is characterized in that: cat ladder (4) is installed between well site and workbench (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420461998.0U CN203978365U (en) | 2014-08-16 | 2014-08-16 | A kind of safe well control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420461998.0U CN203978365U (en) | 2014-08-16 | 2014-08-16 | A kind of safe well control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203978365U true CN203978365U (en) | 2014-12-03 |
Family
ID=51975824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420461998.0U Expired - Lifetime CN203978365U (en) | 2014-08-16 | 2014-08-16 | A kind of safe well control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203978365U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206905A (en) * | 2018-11-21 | 2020-05-29 | 中国石油天然气股份有限公司 | Well head braced system |
-
2014
- 2014-08-16 CN CN201420461998.0U patent/CN203978365U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206905A (en) * | 2018-11-21 | 2020-05-29 | 中国石油天然气股份有限公司 | Well head braced system |
| CN111206905B (en) * | 2018-11-21 | 2022-06-03 | 中国石油天然气股份有限公司 | Well head braced system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141203 |