CN202467747U - Anti-spraying device of continuous oil pipe working wellhead - Google Patents
Anti-spraying device of continuous oil pipe working wellhead Download PDFInfo
- Publication number
- CN202467747U CN202467747U CN2012200331354U CN201220033135U CN202467747U CN 202467747 U CN202467747 U CN 202467747U CN 2012200331354 U CN2012200331354 U CN 2012200331354U CN 201220033135 U CN201220033135 U CN 201220033135U CN 202467747 U CN202467747 U CN 202467747U
- Authority
- CN
- China
- Prior art keywords
- oil pipe
- continuous oil
- valve body
- gate
- 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
Images
Landscapes
- Pipe Accessories (AREA)
Abstract
The utility model relates to an anti-spraying device of a continuous oil pipe working wellhead and belongs to a safety risk control device in an oil gas field working process. The anti-spraying device is formed by a valve body, a fully-sealed gate, a shearing gate, a slip gate and a semi-sealed gate, wherein the fully-sealed gate, the shearing gate, the slip gate and the semi-sealed gate are sequentially arranged on the valve body; the upper and lower ends of the valve body are connected with flanges; and a bypass pipe is arranged on the side pipe wall of the valve body. According to the utility model, in the working process of a continuous oil pipe, the continuous oil pipe can be better sealed to prevent gas from being leaked and each fluid and pressure in a borehole can be effectively separated; under an emergent condition, the continuous oil pipe is cut off so that the well is closed; the continuous oil pipe is fixed so as to prevent the continuous oil pipe from slipping into the well; and under the emergent condition, the bypass pipe can carry out operations such as pressure leaking and well pressing on a gas well.
Description
Technical field
The utility model relates to a kind of continuous oil pipe operation pit mouth blowout hookup, belongs to the well head safe risk control device technique field in the risk control of oilfield operation the process safe device, particularly high sour gas well coiled tubing operation process.
Background technology
Existing coiled tubing blowout hookup is inconvenient to operate, and contact peracidity medium-tight property is poor, is prone to reveal, and is prone to cause security incident, can't satisfy the coiled tubing long working construction requirement of sour gas well.The patent No. is 01200678.5 to disclose a kind of well logging preventer, and the defective of existence is to be not suitable for operation in acid medium.The patent No. is 201020105406.3 to disclose a kind of simple wellhead preventer, and the defective of existence mainly is to be not suitable for using at operation process, is prone to cause revealing.The patent No. is 200720045970.9 to disclose a kind of novel double-gate plate preventer, is not easy to operation, is not suitable for operation in acid medium.Especially the coiled tubing operation of peracidity gas field is in an emergency, and during like blowout, needs to remove blowout hookup and carries out pressure release or kill job, and operational risk is big.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned prior art to be in an emergency in the coiled tubing operation, and during like blowout, when needing the dismounting blowout hookup to carry out pressure release or kill job, the defective that operational risk is big provides a kind of continuous oil pipe operation pit mouth blowout hookup.
The utility model by blind rams, shear ram, the slips flashboard installed successively on valve body and the valve body, partly seal flashboard and form, the valve body upper/lower terminal is an adpting flange, on the side pipe wall of valve body, bypass pipe is installed.
The beneficial effect of the utility model is: in the coiled tubing operation process, can prevent gas leakage by fine sealing coiled tubing; Effectively various fluids of barrier wells intraocular and pressure; Emergency is cut off coiled tubing, effectively realizes closing well; Coiled tubing is fixed, prevented the coiled tubing slippage well that falls; In case of emergency, through bypass pipe, also can carry out operations such as gas well pressure release and kill-jobs.
Description of drawings
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is the utility model cross sectional view.
The specific embodiment
Can know by Fig. 1 and Fig. 2, the utility model by blind rams 1, shear ram 2, the slips flashboard 3 installed successively on valve body and the valve body, partly seal flashboard 4 and form, the valve body upper/lower terminal is an adpting flange, on the side pipe wall of valve body, bypass pipe 5 is installed.
When not having coiled tubing in the preventer, close blind rams 1, effectively various fluids of barrier wells intraocular and pressure; When coiled tubing and instrument are lowered in the well,, can earlier slips flashboard 3 cut out if pernicious gas is scurried out to well head in coiled tubing in the well; Coiled tubing is fixed; Close shear ram 2 again, coiled tubing is cut off, with carrying the coiled tubing of shear ram more than 2 on the injection head to more than the blind rams; Close blind rams 1, realize effective closing well; When needs are sheared coiled tubing or coiled tubing are parked in the well a period of time, need close slips flashboard 3, coiled tubing is fixed, prevent the coiled tubing slippage well that falls; When the coiled tubing G.I.H or during the coiled tubing transfixion, close half envelope flashboard 4, can effectively isolate various fluids and pressure in the little annular space of coiled tubing and production tube; When being in an emergency, during like blowout, can carry out pressure release or kill job through bypass pipe 5.
Claims (1)
1. continuous oil pipe operation pit mouth blowout hookup; Form by valve body and valve; The valve body upper/lower terminal is an adpting flange; It is characterized in that: blind rams (1), shear ram (2), slips flashboard (3) are installed on the valve body successively, partly seal flashboard (4), bypass pipe (5) is installed on the side pipe wall of valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200331354U CN202467747U (en) | 2012-02-02 | 2012-02-02 | Anti-spraying device of continuous oil pipe working wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200331354U CN202467747U (en) | 2012-02-02 | 2012-02-02 | Anti-spraying device of continuous oil pipe working wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202467747U true CN202467747U (en) | 2012-10-03 |
Family
ID=46915912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200331354U Expired - Fee Related CN202467747U (en) | 2012-02-02 | 2012-02-02 | Anti-spraying device of continuous oil pipe working wellhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202467747U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246130A (en) * | 2016-08-18 | 2016-12-21 | 中国石油天然气股份有限公司 | Pipe preventer continuously |
| CN108412447A (en) * | 2018-03-02 | 2018-08-17 | 中国石油集团川庆钻探工程有限公司 | Oil/gas well blowout out of control, which is speedily carried out rescue work, uses wellhead assembly |
| CN110097794A (en) * | 2019-04-11 | 2019-08-06 | 西南石油大学 | Coiled tubing breach failure simulation method |
| CN114458188A (en) * | 2022-01-14 | 2022-05-10 | 四川宝石机械钻采设备有限责任公司 | Cutting flashboard for belt press working machine |
-
2012
- 2012-02-02 CN CN2012200331354U patent/CN202467747U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246130A (en) * | 2016-08-18 | 2016-12-21 | 中国石油天然气股份有限公司 | Pipe preventer continuously |
| CN108412447A (en) * | 2018-03-02 | 2018-08-17 | 中国石油集团川庆钻探工程有限公司 | Oil/gas well blowout out of control, which is speedily carried out rescue work, uses wellhead assembly |
| CN110097794A (en) * | 2019-04-11 | 2019-08-06 | 西南石油大学 | Coiled tubing breach failure simulation method |
| CN114458188A (en) * | 2022-01-14 | 2022-05-10 | 四川宝石机械钻采设备有限责任公司 | Cutting flashboard for belt press working machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101812981B (en) | Mechanical underground all-in-one blowout preventer | |
| CN104314520B (en) | A kind of sleeve type storm valve | |
| CN202081851U (en) | Polish rod sealing apparatus | |
| CN202467747U (en) | Anti-spraying device of continuous oil pipe working wellhead | |
| CN103993852A (en) | Gas well snubbing liquid seal gas well mouth blowout prevention system | |
| CN203531793U (en) | Safe and rapid operation well head device for offshore oil well | |
| CN202266242U (en) | Gas well pumping and raining device | |
| CN201843563U (en) | Mechanical downhole inner and outer integrated blowout preventer | |
| CN203925394U (en) | Not kill-job of gas well fluid-tight gas well mouth spraying-preventing system | |
| CN2835537Y (en) | Apparatus for stripping sucker rod under pressure for oil well | |
| CN204532248U (en) | A kind of embedded gate valve type Dual tubing heat extraction wellhead | |
| CN204457614U (en) | A kind of two disc type circulating valve that breaks | |
| CN203685106U (en) | Hydraulic control protector | |
| CN204984309U (en) | Coiled tubing device has been pressed out in area | |
| CN105089524B (en) | A kind of with pressure goes out applications of coiled tubing unit and process | |
| CN201202438Y (en) | Screw pump rod tube safety valve driven by rod | |
| CN104895521B (en) | Coal bed gas well Operating Pressure is equipped | |
| CN203321418U (en) | Near-bit downhole blowout preventer | |
| CN202788810U (en) | Pressure testing device of oil-water well operation well head and blowout preventer | |
| CN203742520U (en) | Integrally-detachable stagewise sleeve head | |
| CN206554896U (en) | Oil swabbing and taking well well head safe control device | |
| CN207161041U (en) | A kind of compression type open hole packer | |
| CN103806859A (en) | Double-wedge-disc blowout prevention device with high practicability | |
| CN200985766Y (en) | Hollow oil cylinder type no-killing well repairing well head device | |
| CN201318148Y (en) | Manual double ram blowout preventer |
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: 20121003 Termination date: 20130202 |