CN202788794U - Blowout preventer and drilling machine linkage safety device - Google Patents
Blowout preventer and drilling machine linkage safety device Download PDFInfo
- Publication number
- CN202788794U CN202788794U CN 201220489618 CN201220489618U CN202788794U CN 202788794 U CN202788794 U CN 202788794U CN 201220489618 CN201220489618 CN 201220489618 CN 201220489618 U CN201220489618 U CN 201220489618U CN 202788794 U CN202788794 U CN 202788794U
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- control
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- gas
- feeding apparatus
- air feeding
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Abstract
The utility model relates to a blowout preventer and drilling machine linkage safety device. The blowout preventer and drilling machine linkage safety device comprises a working gas circuit and a control gas circuit. In a normal state, a main gas source of a driller platform of a drilling machining supplies gas to a control system which controls a drilling machine at a well mouth through a gas source mouth I and a working mouth G of a regularly opened degasser so that the drilling machine works and the control gas circuit is closed. When the blowout preventer seals half of the well mouth, an oil circuit of a flashboard of the blowout preventer is closed and meanwhile, pressure oil is filled in a rodless cavity of a hydraulic control oil cylinder so that a piston rod stretches out and presses down a motion valve. One route of a control gas source passes by a vent P and a vent A of the motion valve and enters into a control mouth K' of a regularly closed degasser and the regularly closed degasser is opened. The other route of the control gas source passes by a gas source mouth I' and a working mouth G' of the regularly closed degasser and flows into a control mouth of K of the regularly opened degasser so that the regularly opened degasser is closed and gas supply to the control system which controls the drilling machine to work at the well mouth is cut off, under the state, all faulty operation of operating staff is invalid. A drilling tool is prevented from being broken by pull, a well support is prevented from collapsing by pull and the aim of self-lock safety protection is achieved.
Description
Technical field
The utility model relates to a kind of safety device, relates in particular to a kind ofly after oil field well control preventer cuts out, and prevents that maloperation from causing drilling tool to break or derrick is drawn the preventer that collapses and rig interlock safety device, belongs to oil well control techniques field.
Background technology
Preventer in the well-control equipment is the safety device that prevents the blowout indispensability in the oil and gas well drilling, partly seal preventer after closing by the operation of control system of ground preventer, often occur to carry sliding wellhead casing pipe button because maloperation causes, put off the accidents such as drilling rod.Particularly when the blowout emergency episode occurs, its on-the-spot order is upset, atmosphere is also very nervous, the operator is often in a rush easily, the maloperation of this moment is exactly the thing that occurs most probably, gas blowout accident is mainly in again in the process that makes a trip in addition, therefore very easily cause traveling system and drilling tool not to separate the flurried operation that just lifts by force traveling system, cause the accident that the wellhead casing pipe button is sliding by carrying, drilling rod is put off to occur, also may produce derrick under the extreme case and be drawn the serious accident that collapses to occur.In case therefore people wish to have a kind of preventer to close well head, traveling system just can't start, rig applies in the well-control equipment of oil field with regard to inoperable interlock safety device.
Summary of the invention
The purpose of this utility model is to provide a kind of preventer and rig interlock safety device, solves when preventer half shut-in well mouth, carries sliding wellhead casing pipe button because operator's maloperation causes, puts off the accident problem such as drilling rod.
To achieve these goals, Bian of the present invention gets following technical scheme and implements: a kind of preventer and rig interlock safety device, comprise work gas circuit and control gas circuit, the work gas circuit by rig driller station gas source 6, often open air feeding apparatus 5, pipeline 7 forms, source of the gas mouth I, the working hole G of described rig driller station gas source 6 by often opening air feeding apparatus 5, pipeline 7 air feed are in the control system of control well head rig work; The control gas circuit is comprised of hydraulic control oil cylinder 1, stroke valve 2, control source of the gas 3, normally closed air feeding apparatus 4, pipeline 7, hydraulic control oil cylinder 1 is relative fixing with stroke valve 2, it is characterized in that: the oilhole in described hydraulic control oil cylinder 1 rodless cavity accesses on the pipeline that connects ram block oil cylinder rodless cavity oilhole by pipeline 7; Described control source of the gas 3 is connected with the pore P of stroke valve 2, the source of the gas mouth I' of normally closed air feeding apparatus 4 by pipeline 7 respectively; The pore A of stroke valve 2 communicates with atmosphere D, and pore B is connected with the control mouth K' of normally closed air feeding apparatus 4 by pipeline 7; The control mouth K that air feeding apparatus 5 is often opened in the working hole G' of normally closed air feeding apparatus 4 and work in the gas circuit in the described control gas circuit is connected and communicates.
The utility model is connected on the driller station control piper of control well head rig work, as long as preventer does not cut out, often opens the work that air feeding apparatus 5 does not affect driller's console.In case preventer cuts out, this is often opened air feeding apparatus 5 and will close, and the control system air feed of control well head rig work interrupts.Under this state, all maloperation void in whole of operating personnel, drilling tool can't on carry, avoided drilling tool to be broken fully or derrick is drawn the accident that collapses to occur, realized the purpose of self locking safety protection.
It is good to the utlity model has self-locking property, and the advantage such as be active in one's movements, safe and reliable.
Description of drawings
Accompanying drawing 1 is the utility model normality control system pneumatic diagram;
Accompanying drawing 2 is the utility model preventer half shut-in well mouthful rear control system pneumatic diagram.
In attached Fig. 1 and 2: 1 hydraulic control oil cylinder, 2 stroke valves, 3 control sources of the gas, 4 normally closed air feeding apparatus, 5 often open air feeding apparatus, 6 rig driller station gas sources, 7 pipelines, I, I ' source of the gas mouth, K, K ' control mouth, G, G ' working hole, F gas vent, D atmosphere, A, B, P pore.
The specific embodiment
As shown in Figure 1, the utility model comprises work gas circuit and control gas circuit, under the normality, rig driller station gas source 6 in the work gas circuit makes rig work by source of the gas mouth I, working hole G, pipeline 7 air feed of often opening air feeding apparatus 5 in the control system of control well head rig work, P, the A pore of control source of the gas 3 in stroke valve 2 communicates with atmosphere D, and the control gas circuit is in closed condition.
As shown in Figure 2, when preventer half oil sealing field well head, oily to the hydraulic control oil cylinder 1 rodless cavity injection pressure of controlling in the gas circuit simultaneously by the oil circuit of closing ram block, piston rod stretches out depression stroke valve 2, control source of the gas 3 is through the pore P of stroke valve 2, B enters the control mouth K' of normally closed air feeding apparatus 4, and pushing piston displacement, normally closed air feeding apparatus 4 is opened, control source of the gas 3 is through the source of the gas mouth I' of normally closed air feeding apparatus 4, working hole G' enters the control mouth K that often opens air feeding apparatus 5, and the piston displacement in the air feeding apparatus 5 is often opened in promotion, make and often open air feeding apparatus 5 and close, the rig driller station gas source 6 of control well head rig action interrupts, return-air is often opened the working hole K of air feeding apparatus 5, gas vent F emits, and rig is quit work.Under this state, all maloperation void in whole of operating personnel, drilling tool can't on carry, avoided drilling tool to be broken fully or derrick is drawn the accident that collapses to occur, realized the purpose of self locking safety protection.
Claims (1)
1. a preventer and rig interlock safety device, comprise work gas circuit and control gas circuit, the work gas circuit by rig driller station gas source (6), often open air feeding apparatus (5), pipeline (7) forms, source of the gas mouth I, the working hole K of described rig driller station gas source (6) by often opening air feeding apparatus (5), pipeline (7) air feed are in the control system of controlling the work of well head rig; The control gas circuit is comprised of hydraulic control oil cylinder (1) stroke valve (2) the control normally closed air feeding apparatus of source of the gas (3) (4) pipeline (7), and hydraulic control oil cylinder (1) is relative fixing with stroke valve (2), it is characterized in that:
Oilhole in described hydraulic control oil cylinder (1) rodless cavity accesses on the pipeline that connects ram block oil cylinder rodless cavity oilhole by pipeline (7);
Described control source of the gas (3) is connected by the source of the gas mouth I' of pipeline (7) with the pore P of stroke valve (2), normally closed air feeding apparatus (4) respectively;
The pore A of described stroke valve (2) communicates with atmosphere D, and pore B is connected with the control mouth K' of normally closed air feeding apparatus (4) by pipeline (7);
The working hole G' of described normally closed air feeding apparatus (4) is connected with the control mouth K that often opens air feeding apparatus (5) and communicates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220489618 CN202788794U (en) | 2012-09-25 | 2012-09-25 | Blowout preventer and drilling machine linkage safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220489618 CN202788794U (en) | 2012-09-25 | 2012-09-25 | Blowout preventer and drilling machine linkage safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202788794U true CN202788794U (en) | 2013-03-13 |
Family
ID=47816070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220489618 Expired - Fee Related CN202788794U (en) | 2012-09-25 | 2012-09-25 | Blowout preventer and drilling machine linkage safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202788794U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758505A (en) * | 2014-02-17 | 2014-04-30 | 成都市卓新实业有限公司 | Method for safety protection of drilling tool at wellhead |
| CN103775052A (en) * | 2014-02-17 | 2014-05-07 | 成都市卓新实业有限公司 | Drilling tool wellhead safety protection control device |
-
2012
- 2012-09-25 CN CN 201220489618 patent/CN202788794U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758505A (en) * | 2014-02-17 | 2014-04-30 | 成都市卓新实业有限公司 | Method for safety protection of drilling tool at wellhead |
| CN103775052A (en) * | 2014-02-17 | 2014-05-07 | 成都市卓新实业有限公司 | Drilling tool wellhead safety protection control device |
| CN103758505B (en) * | 2014-02-17 | 2016-05-04 | 成都市卓新实业有限公司 | Drilling tool well head method for security protection |
| CN103775052B (en) * | 2014-02-17 | 2017-01-25 | 成都市卓新实业有限公司 | Drilling tool wellhead safety protection control device |
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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: 20130313 Termination date: 20140925 |
|
| EXPY | Termination of patent right or utility model |