CN202431247U - Hydraulic control system for blowout preventers of snubbing operation device - Google Patents
Hydraulic control system for blowout preventers of snubbing operation device Download PDFInfo
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- CN202431247U CN202431247U CN2011204437071U CN201120443707U CN202431247U CN 202431247 U CN202431247 U CN 202431247U CN 2011204437071 U CN2011204437071 U CN 2011204437071U CN 201120443707 U CN201120443707 U CN 201120443707U CN 202431247 U CN202431247 U CN 202431247U
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- valve
- preventer
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- hydraulic
- control
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Abstract
The utility model discloses a hydraulic control system for blowout preventers of a snubbing operation device. The system is mainly suitable for snubbing operation of an oil well, a water well and a gas well. A rodless cavity of each of the blowout preventers I, II and III is connected with a hydraulic control one-way valve, a reversing valve and a hydraulic source through a hydraulic pipeline; a rod cavity of each of the blowout preventers I, II and III is connected with a hydraulic control one-way valve and the reversing valve through a hydraulic pipeline; a control oil circuit of the rodless cavity of each of the blowout preventers I, II and III is connected with a one-way sequence valve and a one-way valve; and stop valves and one-way valves are connected among control oil circuits of the blowout preventers I, II and III and between control oil circuits of the blowout preventers III and I. The opening and closing sequence of the three blowout preventers can be controlled by the reversing valves, and before one blowout preventer is opened, another blowout preventer is closed, so that operation safety is ensured.
Description
Technical field
The utility model relates to a kind of Operating Pressure device blowout preventer hydraulic and controls system, is specially adapted to the control of the Operating Pressure device of oil well, well, gas well.
Background technology
Remove in the workover treatment of down-hole string at oil well, well, gas well; Operating Pressure is in well, to have under the situation of pressure, holds tubing string by turns tightly, the sealed well internal pressure with two or more preventers up and down; And through jacking system oil pipe is tripped out or G.I.H, realize that band presses workover treatment.
Preventer on the existing Operating Pressure device is to adopt the independently control separately of a reversal valve respectively, but cannot realize interlocking between these two reversal valves, if maloperation appears in operating personnel; Two preventers can occur and be in open mode simultaneously, cause liquid ejection in the well, cause casualties; Serious accidents such as device damage; Existing equipment requires operating personnel to concentrate in addition, and operation is careful, causes neurolysis easily.
Summary of the invention
The purpose of the utility model provides Operating Pressure device blowout preventer hydraulic control system; Use opening and closing motion of three preventers of reversal valve ordered control; Another preventer was in the sequentially-operating of cutting out before a preventer was opened in final realization, guaranteed the safety of operation.
The utility model technical scheme: preventer I, preventer II, preventer III rodless cavity are connected with hydraulic control one-way valve, reversal valve, hydraulic power source through hydraulic line; Rod chamber is connected with hydraulic control one-way valve, reversal valve through hydraulic line; And on preventer I, preventer II, preventer III rod chamber control oil channel, respectively be connected to an one way sequence valve and an one way valve, between preventer I and preventer II and preventer III, preventer III and preventer I control oil channel, be connected with stop valve and one way valve.
The beneficial effect of the utility model is: after closing one group of stop valve; Control closing and opening of two preventers with corresponding reversal valve; And before can realizing that a preventer unclamps; The another one preventer necessarily is in closed condition, can guarantee that like this tubing string has a preventer to be in closed condition all the time in the well, avoids liquid ejection in the well.
Description of drawings
Accompanying drawing 1 is the structural representation of the utility model
Among the figure: I-preventer I; II-preventer II; III-preventer III; The 1-hydraulic power source; The 2-fuel tank; The 3-reversal valve; 4-switch operation handle; The 5-reversal valve; 6-switch operation handle; The 7-reversal valve; 8-switch operation handle; The 9-one way valve; The 10-stop valve; The 11-stop valve; The 12-one way valve; The 13-one way sequence valve; The 14-one way valve; The 15-stop valve; The 16-one way valve; The 17-one way valve; The 18-stop valve; The 19-one way sequence valve; The 20-one way valve; The 21-one way sequence valve; The 22-one way valve; The 23-hydraulic control one-way valve; The 24-hydraulic control one-way valve; The 25-hydraulic control one-way valve; The 26-hydraulic control one-way valve; The 27-hydraulic control one-way valve; The 28-hydraulic control one-way valve; The rod chamber of 29-preventer I; The rodless cavity of 30-preventer I; The rodless cavity of 31-preventer II; The rod chamber of 32-preventer II; The rod chamber of 33-preventer III; The rodless cavity of 34-preventer III.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed description:
The rodless cavity (30) of the utility model preventer I oil cylinder is connected with hydraulic control one-way valve (23), reversal valve (3), hydraulic power source (1) through hydraulic line; The rod chamber (29) of preventer I oil cylinder is connected with hydraulic control one-way valve (24), reversal valve (3) through hydraulic line, forms the hydraulic control oil circuit of preventer I; The rodless cavity (31) of preventer II oil cylinder is connected with hydraulic control one-way valve (25), reversal valve (5), hydraulic power source (1) through hydraulic line; The rod chamber (32) of preventer II oil cylinder is connected with hydraulic control one-way valve (26), reversal valve (5) through hydraulic line, forms preventer II control oil channel; The rodless cavity (34) of preventer III oil cylinder is connected with hydraulic control one-way valve (27), reversal valve (7), hydraulic power source (1) through hydraulic line; The rod chamber (33) of preventer III oil cylinder is connected with reversal valve (7) with hydraulic control one-way valve (28) through hydraulic line, forms preventer III control oil channel; It is characterized in that between the hydraulic control one-way valve (24) of preventer I rod chamber control oil channel and reversal valve (3), being connected with one way sequence valve (19) and one way valve (20); Between the hydraulic control one-way valve (26) of preventer II rod chamber control oil channel and reversal valve (5), be connected with one way sequence valve (13) and one way valve (14); Between the hydraulic control one-way valve (28) of preventer III rod chamber control oil channel and reversal valve (7), connect one way sequence valve (21) and one way valve (22); Between the reversal valve (3) of preventer I control oil channel, the hydraulic control one-way valve (23) and between the reversal valve (5) of preventer II control oil channel, one way sequence valve (13), be connected with stop valve (10), one way valve (9); Between the reversal valve (5) of preventer II control oil channel, the hydraulic control one-way valve (25), and between the reversal valve (3) of preventer I control oil channel, one way sequence valve (19), be connected with stop valve (15), one way valve (16); Between the reversal valve (7) of preventer III control oil channel, the hydraulic control one-way valve (27), and between the reversal valve (5) of preventer II control oil channel, one way sequence valve (13), be connected with stop valve (11), one way valve (12); Between the reversal valve (5) of preventer II control oil channel, hydraulic control one-way valve (25), and between the reversal valve (7) of preventer III control oil channel, one way sequence valve (21), connect stop valve (18), one way valve (17).
Preventer I opens operating principle: open at stop valve (10), stop valve (15), under stop valve (18) and stop valve (11) closing state, preventer I is communicated with realization control through hydraulic control one-way valve (24), hydraulic control one-way valve (23), one way sequence valve (19), stop valve (15), one way valve (16), hydraulic control one-way valve (25) and hydraulic control one-way valve (26); Before preventer I opens; Hydraulic oil passes through stop valve (15), one way valve (16), hydraulic control one-way valve (25), when pressure is raised to the opening pressure of hydraulic control one-way valve (26), is injected into the rodless cavity (31) of preventer II oil cylinder, and the pressure of rodless cavity (31) will raise; II closes with preventer; When rising to the pressure set points of one way sequence valve (19), one way sequence valve (19) is opened automatically, and hydraulic oil is through hydraulic control one-way valve (24), when pressure is raised to the opening pressure of hydraulic control one-way valve (23); Be injected into the rod chamber (29) of preventer I; Open preventer I, guarantee that before preventer I opened, preventer II was in closed condition.Preventer II opens, preventer I closes; Preventer III opens, preventer I closes; Preventer I opens, preventer III closes; Its principle is identical.
During operation, can precedingly push away through switch operation handle (4) as required, post-tensioning reversing valve operated (3), switch operation handle (6) is preceding to be pushed away, post-tensioning reversing valve operated (5); Switch operation handle (8) is preceding to be pushed away, post-tensioning reversing valve operated (7), realizes the switch motion of each preventer.
The utility model is closed the purpose of another preventer before having realized opening a preventer in order, thereby guarantees job safety.
Claims (1)
1. an Operating Pressure device blowout preventer hydraulic is controlled system; The rodless cavity (30) of preventer I oil cylinder is connected with hydraulic control one-way valve (23), reversal valve (3), hydraulic power source (1) through hydraulic line; The rod chamber (29) of preventer I oil cylinder is connected with hydraulic control one-way valve (24), reversal valve (3) through hydraulic line, forms the hydraulic control oil circuit of preventer I; The rodless cavity (31) of preventer II oil cylinder is connected with hydraulic control one-way valve (25), reversal valve (5), hydraulic power source (1) through hydraulic line; The rod chamber (32) of preventer II oil cylinder is connected with hydraulic control one-way valve (26), reversal valve (5) through hydraulic line, forms preventer II control oil channel; The rodless cavity (34) of preventer III oil cylinder is connected with hydraulic control one-way valve (27), reversal valve (7), hydraulic power source (1) through hydraulic line; The rod chamber (33) of preventer III oil cylinder is connected with reversal valve (7) with hydraulic control one-way valve (28) through hydraulic line, forms preventer III control oil channel; It is characterized in that: between the hydraulic control one-way valve (24) of preventer I rod chamber control oil channel and reversal valve (3), be connected with one way sequence valve (19) and one way valve (20); Between the hydraulic control one-way valve (26) of preventer II rod chamber control oil channel and reversal valve (5), be connected with one way sequence valve (13) and one way valve (14); Between the hydraulic control one-way valve (28) of preventer III rod chamber control oil channel and reversal valve (7), connect one way sequence valve (21) and one way valve (22); Between the reversal valve (3) of preventer I control oil channel, the hydraulic control one-way valve (23) and between the reversal valve (5) of preventer II control oil channel, one way sequence valve (13), be connected with stop valve (10), one way valve (9); Between the reversal valve (5) of preventer II control oil channel, the hydraulic control one-way valve (25), and between the reversal valve (3) of preventer I control oil channel, one way sequence valve (19), be connected with stop valve (15), one way valve (16); Between the reversal valve (7) of preventer III control oil channel, the hydraulic control one-way valve (27), and between the reversal valve (5) of preventer II control oil channel, one way sequence valve (13), be connected with stop valve (11), one way valve (12); Between the reversal valve (5) of preventer II control oil channel, hydraulic control one-way valve (25), and between the reversal valve (7) of preventer III control oil channel, one way sequence valve (21), connect stop valve (18), one way valve (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204437071U CN202431247U (en) | 2011-11-04 | 2011-11-04 | Hydraulic control system for blowout preventers of snubbing operation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204437071U CN202431247U (en) | 2011-11-04 | 2011-11-04 | Hydraulic control system for blowout preventers of snubbing operation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202431247U true CN202431247U (en) | 2012-09-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204437071U Expired - Fee Related CN202431247U (en) | 2011-11-04 | 2011-11-04 | Hydraulic control system for blowout preventers of snubbing operation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202431247U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156397A (en) * | 2015-08-18 | 2015-12-16 | 安庆联动属具股份有限公司 | Hydraulic valve loop with sequential control function |
-
2011
- 2011-11-04 CN CN2011204437071U patent/CN202431247U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156397A (en) * | 2015-08-18 | 2015-12-16 | 安庆联动属具股份有限公司 | Hydraulic valve loop with sequential control function |
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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: 20120912 Termination date: 20151104 |
|
| EXPY | Termination of patent right or utility model |