CN101781978B - Integrated control system for safety block valve - Google Patents
Integrated control system for safety block valve Download PDFInfo
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- CN101781978B CN101781978B CN200910310643A CN200910310643A CN101781978B CN 101781978 B CN101781978 B CN 101781978B CN 200910310643 A CN200910310643 A CN 200910310643A CN 200910310643 A CN200910310643 A CN 200910310643A CN 101781978 B CN101781978 B CN 101781978B
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Abstract
The invention discloses an integrated control system for a safety block valve, which comprises a pressure sensor that is connected with a superpressure sensing port and a pressure losing sensing port, wherein the pressure sensor is connected with a remote control system, the output end of the remote control system is respectively connected with control ends of anti-explosion magnetic valves of wells, one ends of the anti-explosion magnetic valves are connected with the control end of a hydraulic control two-position two-way valve, the control end of a main control valve and a reset valve, the other ends of the anti-explosion magnetic valves are connected with a pressure meter and an energy accumulator; an emergency block valve and the anti-explosion magnetic valves are connected in parallel into an oil path; one end of a manual pump is connected with a oil tank through an oil sucking filter and the other end is connected with the oil inlet end of a one-way valve, the oil outlet end of the one-way valve is connected with a well mouth safety valve, the main control valve, an overflow valve and the hydraulic control two-position two-way valve; and the other end of the hydraulic control two-position two-way valve is connected with the energy accumulator, and the main control valve and the other end of the overflow valve are connected with the oil tank. The system can integrally control a plurality of wells by an integrated control system.
Description
Technical field
The present invention relates to natural gas and adopt the well head safe hydraulic pressure cut-off control system that is used for natural gas well head or appendix main line automatic switch in the defeated well site, field station equipment or appendix are played the safeguard protection effect.
Background technology
Adopt the safety valve that defeated well site floor mounted has the output of control natural gas at natural gas, when the inefficacy of down-hole guillotine, when the natural gas air pressure of output surpassed predetermined pressure, safety valve is the generation of close preventing accident automatically, ensured well site safety.Existing well head safe blocks the corresponding control module of control system a bite well, and independent separately the use, can not be carried out centralized and unified control at inefficiency.Particularly remote well site (station) is although be equipped with safe truncated system, mainly take be regularly and the mode of irregularly patrolling and examining its administer and maintain, what this mode was not easy in time find deals with problems, eliminates safe hidden trouble.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can carry out central controlled device to many mouthfuls of wells through an integrated control system.
Technical scheme of the present invention is following:
A kind of integrated control system for safety block valve; Comprise the pressure sensor that is connected with superpressure sensing mouth, decompression sensing mouth respectively; Each pressure sensor is connected to tele-control system, and the output of tele-control system links to each other with the control end of the explosion-proof solenoid valve of each well respectively, and an end of explosion-proof solenoid valve links to each other with the valve that resets with the control end of the control end of hydraulic control two position two-way valve, main control valve; The other end of valve of resetting is linked fuel tank, and the other end of explosion-proof solenoid valve links to each other with pressure meter, accumulator; Urgent block valve and explosion-proof solenoid valve are connected in parallel in the oil circuit; One end of manual pump links to each other with fuel tank through the oil suction strainer, and the manual pump other end links to each other with the oil inlet end of one way valve, and the oil outlet end of one way valve connects well mouth release valve, main control valve, overflow valve, hydraulic control two position two-way valve; The other end of hydraulic control two position two-way valve and accumulator with link to each other, the other end of main control valve and overflow valve links to each other with fuel tank.
Supplementary technology scheme of the present invention is following:
Preferably, on well mouth release valve, be connected with the fire alarm fusible plug.
Beneficial effect of the present invention is following: can carry out Centralized Monitoring and management to the station that the control device of the safe truncated system of many mouthfuls of wells (particularly remote well) focuses on an Attended mode; Make the well station administration more scientific, rationalize, oversimplify, and can realize Long-distance Control.
Description of drawings
The present invention will explain through example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is the systematic schematic diagram of integrated control system for safety block valve embodiment of the present invention.
The specific embodiment
Specific embodiment 1 of the present invention; As shown in Figure 1, a kind of integrated control system for safety block valve, A partly is a superpressure decompression monitoring device among the figure; B partly blocks the control system for each well head safe; Comprise the pressure sensor 20 that links to each other with superpressure sensing mouth 18, decompression sensing mouth 19 respectively, each pressure sensor 20 is connected to tele-control system 17, and the output of tele-control system 17 links to each other with the control end of the explosion-proof solenoid valve 16 of each well respectively; One end of explosion-proof solenoid valve 16 links to each other with the control end of the control end of hydraulic control two position two-way valve 13, main control valve 11, the valve 12 that resets; The other end of valve 12 of resetting is linked fuel tank 1, and the other end of explosion-proof solenoid valve 16 links to each other with pressure meter 14, accumulator 15, and urgent block valve 10 is connected in parallel in the oil circuit with explosion-proof solenoid valve 16; One end of manual pump 6 links to each other with fuel tank 1 through oil suction strainer 4, and manual pump 6 other ends link to each other with the oil inlet end of one way valve 7, and the oil outlet end of one way valve 7 connects well mouth release valve 8, main control valve 11, overflow valve 5, hydraulic control two position two-way valve 13; The other end of hydraulic control two position two-way valve 13 and accumulator 15 with link to each other; Main control valve 11 links to each other with fuel tank 1 with overflow valve 5.On well mouth release valve 8, be connected with fire alarm fusible plug 9.
Describe below in conjunction with the operating principle of embodiments of the invention to integrated control system for safety block valve of the present invention: function of the present invention is achieved in that as shown in Figure 1: A is a superpressure decompression sensing apparatus; Comprise 32, No. 3 well superpressure decompressions of No. 1 well superpressure decompression sensing apparatus 33, No. 2 well superpressure decompressions sensing apparatus sensing apparatus 31; B is that No. 1 well well head safe blocks the control system; Only draw the well head safe truncated system figure of No. 1 well among the figure, the system drawing of all the other wells is similar with it.Pressure outlier in superpressure sensing mouth 18 in No. 1 well or decompression sensing mouth 19 detected catheter roads; This signal is converted into the signal of telecommunication through pressure sensor 20 and is transferred in the tele-control system 17; Tele-control system 17 control explosion-proof solenoid valves 16 among the B are opened, and the hydraulic pressure in the accumulator 15 can arrive hydraulic control two position two-way valve 13 and main control valve 11 places through explosion-proof solenoid valve 16, under the effect of accumulator 15; Hydraulic control two position two-way valve 13 is closed, and main control valve 11 is opened.The opening of main control valve 11 is well mouth release valve 8 provides the draining passage, and well mouth release valve 8 is under the effect of himself spring force, through main control valve 11 drainings.This is the control principle of No. 1 well, and the control principle of all the other many wells is identical with it.With the course of action of present embodiment the present invention is further explained below:
1. safety shut-off valve closes
Superpressure or decompression appear in the well head pipeline when the monitoring mouth monitors; This signal will be transferred to tele-control system 17 through pressure sensor 20, and tele-control system 17 control explosion-proof solenoid valves 16 are opened, and hydraulic pressure can reach main control valve 11, hydraulic control two position two-way valve 13 places through explosion-proof solenoid valve in the accumulator 15; Under the hydraulic pressure of accumulator 15 can act on; Main control valve 11 is opened, hydraulic control two position two-way valve 13 is closed, and the opening of main control valve 11 is well mouth release valve 8 provides the draining passage, and well mouth release valve 8 is under the effect of himself spring force; Through main control valve 11 draining in fuel tank 1, well mouth release valve 8 is closed.
2. promptly block
When the well site runs into the burst dangerous situation; When need promptly block well mouth release valve, open urgent block valve 10, hydraulic pressure can arrive main control valve 11 and hydraulic control two position two-way valve 13 through urgent block valve 10 in the accumulator 15; Open main control valve 11; Close hydraulic control two position two-way valve 13, well mouth release valve 8 is closed well head through main control valve 11 drainings.
3. the unlatching of well mouth release valve
It is normal that pressure in the well head pipeline recovers, and tele-control system 17 is closed explosion-proof solenoid valve 16, opens the valve 12 that resets; Hydraulic oil is got back to fuel tank through the valve 12 that resets in the oil circuit; Therefore main control valve 11 is closed, and hydraulic control two position two-way valve 13 is opened, and hydraulic pressure can be suppressed in well mouth release valve 8 through hydraulic control two position two-way valve 13 in the accumulator 15; Open well mouth release valve 8, recover the well site ordinary production.
4 accumulators fill ability
Pressure descends in accumulator 15, when system can't normally use, opens manual pump 6; Oil pressure arrives in the accumulator 15 through one way valve 7, hydraulic control two position two-way valve 13; When fill can accomplish after, hydraulic pressure can be able to get back to fuel tank through overflow valve 5, prevents that accumulator 15 from damaging.
Disclosed all characteristics in this manual, or the step in disclosed all methods or the process except mutually exclusive characteristic and/or the step, all can make up by any way.
Disclosed arbitrary characteristic in this manual (comprising any accessory claim, summary and accompanying drawing) is only if special narration all can be replaced by other equivalences or the alternative features with similar purpose.That is, only if special narration, each characteristic is an example in a series of equivalences or the similar characteristics.
The present invention is not limited to the aforesaid specific embodiment.The present invention expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (2)
1. integrated control system for safety block valve; Comprise the pressure sensor (20) that links to each other with superpressure sensing mouth (18), decompression sensing mouth (19) respectively; Each pressure sensor (20) is connected to tele-control system (17); The output of tele-control system (17) links to each other with the control end of the explosion-proof solenoid valve (16) of each well respectively; One end of explosion-proof solenoid valve (16) links to each other with an end of the control end of hydraulic control two position two-way valve (13), the control end of main control valve (11), the valve that resets (12); The other end of valve (12) of resetting is linked fuel tank (1), and the other end of explosion-proof solenoid valve (16) links to each other with pressure meter (14), accumulator (15), and urgent block valve (10) is connected in parallel in the oil circuit with explosion-proof solenoid valve (16); One end of manual pump (6) links to each other with fuel tank (1) through oil suction strainer (4); Manual pump (6) other end links to each other with the oil inlet end of one way valve (7), and the oil outlet end of one way valve (7) connects an end of well mouth release valve (8), main control valve (11), overflow valve (5), hydraulic control two position two-way valve (13); The other end of hydraulic control two position two-way valve (13) and accumulator (15) with link to each other; Main control valve (11) links to each other with fuel tank (1) with overflow valve (5).
2. integrated control system for safety block valve according to claim 1 is characterized in that: on well mouth release valve (8), be connected with fire alarm fusible plug (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910310643A CN101781978B (en) | 2009-11-30 | 2009-11-30 | Integrated control system for safety block valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910310643A CN101781978B (en) | 2009-11-30 | 2009-11-30 | Integrated control system for safety block valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101781978A CN101781978A (en) | 2010-07-21 |
| CN101781978B true CN101781978B (en) | 2012-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910310643A Active CN101781978B (en) | 2009-11-30 | 2009-11-30 | Integrated control system for safety block valve |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7823640B2 (en) * | 2007-10-23 | 2010-11-02 | Saudi Arabian Oil Company | Wellhead flowline protection and testing system with ESP speed controller and emergency isolation valve |
| CN103742787B (en) * | 2013-08-05 | 2016-08-24 | 西南石油大学 | A kind of determination method of Long-distance Transmission Pipeline block valve for pipeline room spacing |
| CN109555892B (en) * | 2017-09-26 | 2020-06-23 | 中国石油化工股份有限公司 | Remote monitoring alarm control system for pipeline cut-off device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2170330A (en) * | 1984-12-05 | 1986-07-30 | Ortoil Spa | Hydraulic safety apparatus for pressure regulating valves supplying well blow out annular preventers |
| CN1431382A (en) * | 2003-02-26 | 2003-07-23 | 中国石油集团工程设计有限责任公司西南分公司 | Electric and gas dual controlled safety cut-off device on high pressure oil and gas well top |
| CN2823731Y (en) * | 2005-08-19 | 2006-10-04 | 泸州川油钻采工具有限公司 | Wellhead safety hydraulic cut-off system |
| CN1908365A (en) * | 2005-08-05 | 2007-02-07 | 何建辉 | Control system of well mouth release valve |
-
2009
- 2009-11-30 CN CN200910310643A patent/CN101781978B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2170330A (en) * | 1984-12-05 | 1986-07-30 | Ortoil Spa | Hydraulic safety apparatus for pressure regulating valves supplying well blow out annular preventers |
| CN1431382A (en) * | 2003-02-26 | 2003-07-23 | 中国石油集团工程设计有限责任公司西南分公司 | Electric and gas dual controlled safety cut-off device on high pressure oil and gas well top |
| CN1908365A (en) * | 2005-08-05 | 2007-02-07 | 何建辉 | Control system of well mouth release valve |
| CN2823731Y (en) * | 2005-08-19 | 2006-10-04 | 泸州川油钻采工具有限公司 | Wellhead safety hydraulic cut-off system |
Non-Patent Citations (1)
| Title |
|---|
| 刘志荣,等.井口安全系统的应用.《天然气与石油》.2009,第27卷(第4期),第38-40页. * |
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| Publication number | Publication date |
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| CN101781978A (en) | 2010-07-21 |
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Address after: 646006 No. 78 North madder Road, Sichuan, Luzhou Applicant after: SICHUAN HWAYOO PETROLEUM DRILLING & PRODUCTION CO., LTD. Address before: 646006 No. 78 North madder Road, Sichuan, Luzhou Applicant before: Luzhou Chuanyou Driling Equipment Co.,Ltd. |
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Free format text: CORRECT: APPLICANT; FROM: LUZHOU CHUANYOU DRILL + PRODUCTION EQUIPMENT CO., LTD. TO: SICHUAN HWAYOOPETROLEUM DRILLING + PRODUCTION EQUIPMENT CO., LTD. |
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