CN203022678U - Blowout preventer pressure testing and boosting device - Google Patents
Blowout preventer pressure testing and boosting device Download PDFInfo
- Publication number
- CN203022678U CN203022678U CN 201220642423 CN201220642423U CN203022678U CN 203022678 U CN203022678 U CN 203022678U CN 201220642423 CN201220642423 CN 201220642423 CN 201220642423 U CN201220642423 U CN 201220642423U CN 203022678 U CN203022678 U CN 203022678U
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- pressure
- cylinder
- preventer
- blowout preventer
- cavity
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Abstract
The utility model relates to a blowout preventer pressure testing and boosting device which comprises a single rod hydraulic cylinder, a pressure boosting cylinder, a high pressure stop valve, a blowout preventer, a shock-proof pressure gage and a water tank. The pressure boosting cylinder is arranged at one end, with a sucker-rod cavity, of the single rod hydraulic cylinder. A single rod is inserted into the pressure boosting cylinder and in clearance fit with the cylinder diameter of the pressure boosting cylinder. In operation, the blowout preventer is closed, the sucker-rod cavity in the single rod hydraulic cylinder is firstly filled with pressure oil and a single rod piston moves to the direction of a rod-less cavity so that negative pressure in a cavity of the pressure boosting cylinder is formed and water in the water tank is sucked to the cavity, wherein the water and the cavity are corresponding in volume. The rod-less cavity in the single rod hydraulic cylinder is filled with the pressure oil and the single rod piston moves to the direction of the sucker-rod cavity so that water in a piston extrusion cavity of the pressure boosting cylinder flows together to the blowout preventer and the shock-proof pressure gage. When a pressure value in the pressure gage reaches to a set pressure value of the blowout preventer, sealing property of the blowout preventer is checked and whether the sealing property satisfies sealing requirements or not is judged. The blowout preventer pressure testing and boosting device has the obvious advantages of being good in pressure boosting effect, free of pulsation in pressure test, accurate in test value and the like.
Description
Technical field
The utility model relates to a kind of blowout-proof apparatus of oil well pressure testing device, and the supercharging mode in a kind of blowout-proof apparatus of oil well pressure testing device particularly belongs to petroleum equipment design and manufacturing technology field.
Background technology
Preventer is to cut out well head for operation process such as drilling well, well workovers, prevent the security seal wellhead assembly that gas blowout accident occurs, it connects remote console and controlled by it by high-pressure oil pipe, when the remote console instruction in the high-pressure oil pipe during input hydraulic oil, the hydraulic control system hydraulic oil enters the left and right oil cylinder, pushing piston drives left and right flashboard assembly and moves to the well head center respectively along housing flashboard chamber, realizes shut-in well.Because the pressure of down-hole is very high, can ram block effectively be resisted well and press after shut-in well, prevents the blowout leakage, is the important embodiment that can preventer realize the security seal function.Therefore, must test the flashboard sealing ability of preventer when manufacturing and installation preventer, to guarantee the perfectly safe of preventer security seal performance.People adopt hydraulic test pump that preventer is tested usually at present, due to the displacement of stroke of hydraulic test pump action seldom, the preventer chamber that the water yield is full of have a constant volume, must carry out just making after the several times stroke water of chamber the inside to reach test pressure, and in the pressure testing process, pulsation constantly appears in the hydraulic pressure of chamber the inside, makes gate rubber core seepage may occur and causes preventer sealing erroneous judgement.Therefore, improve necessary to the improvement again of oil field well control blowout preventer pressure testing device.
Summary of the invention
For present employing hydraulic test pump, oil field well control preventer is carried out the drawbacks such as pressure testing pulsation that pressure testing brings, pressure testing erroneous judgement, the utility model provides a kind of blowout preventer pressure-testing supercharging device.
The utility model takes following technical scheme to implement: a kind of blowout preventer pressure-testing supercharging device, comprise control system of ground preventer, asymmetric servo cylinder, pressurized cylinder, high-pressure stop valve, preventer, shock-proof pressure gauge, strainer, water tank, it is characterized in that: the rod chamber of described asymmetric servo cylinder and rodless cavity are connected with three-position four-way valve hydraulic fluid port in control system of ground preventer respectively; One end of described pressurized cylinder is sealedly connected on the end that asymmetric servo cylinder has the bar control, and single rod stretches in pressurized cylinder and and the pressurized cylinder cylinder diameter between form matched in clearance; The other end of described pressurized cylinder is provided with two through holes, and wherein two branch pipe(tube)s be connected with trunk line by trunk line of through hole connect respectively preventer and are connected the another through hole with water tank and directly connect shock-proof pressure gauge by pipeline; Described high-pressure stop valve is three, wherein one be arranged on pressurized cylinder lead on the branch pipe(tube) of preventer, one be arranged on pressurized cylinder lead on the branch pipe(tube) of water tank, one be arranged on pressurized cylinder and lead on the pipeline of shock-proof pressure gauge; Described strainer is arranged on the branch pipe(tube) of water tank upper.
The utility model arranges pressurized cylinder at rod chamber one end of asymmetric servo cylinder, and single rod in asymmetric servo cylinder is stretched in pressurized cylinder and and the cylinder diameter of pressurized cylinder between form matched in clearance.during work, close preventer, at first rod chamber in asymmetric servo cylinder is full of pressure oil, oil return in rodless cavity flows to fuel tank, single rod piston is moved to the rodless cavity direction, form pressurized cylinder chamber negative pressure and from water tank the water of inspiration respective cylinder chambers volume, rodless cavity in asymmetric servo cylinder is full of pressure oil, when the oil return in rod chamber flows to fuel tank, single rod piston moves to the rod chamber direction, and drive as the water in single rod extruding pressurized cylinder cylinder chamber of pressurized cylinder piston, the water that is extruded flows to preventer and shock-proof pressure gauge simultaneously by pipeline respectively, when the force value in pressure meter reaches the rated pressure value of preventer, check the preventer sealing performance and judge whether to meet seal request.Greater than the piston area in pressurized cylinder, so be pressurized hydraulic pressure that cylinder extrudes greater than the oil pressure that is input in asymmetric servo cylinder from control system of ground preventer, played pressurized effect due to the asymmetric servo cylinder piston area in the utility model.
The utlity model has that pressurized effect is good, pressure testing pulse free, the examination value is accurate, the testing time is short remarkable advantage.
Description of drawings
Fig. 1 is fundamental diagram of the present utility model.
In Fig. 1: 1 control system of ground preventer, 101 three-position four-way valves, 2 asymmetric servo cylinders, 201 pistons, 3 pressurized cylinders, 301 pressurized cylinder pistons, 4,4 ', 4 " high-pressure stop valve, 5 preventers, 6 strainers, 7 water tanks, 8 shock-proof pressure gauges.
The specific embodiment
As shown in Figure 1, the rod chamber of asymmetric servo cylinder 2 and rodless cavity are connected with three-position four-way valve 101 hydraulic fluid ports in control system of ground preventer 1 respectively; One end of pressurized cylinder 3 is sealedly connected on the end that asymmetric servo cylinder 2 has the bar control, and single rod stretches in pressurized cylinder 3 and and pressurized cylinder 3 cylinder diameters between form matched in clearance; The other end of pressurized cylinder 3 is provided with two through holes, and wherein two branch pipe(tube)s be connected with trunk line by trunk line of through hole connect respectively that preventer 5 is connected with water tank, the another through hole directly connects shock-proof pressure gauge 9 by pipeline; High-pressure stop valve 4 is arranged on that pressurized cylinder 3 leads on the branch pipe(tube) of preventer 5, high-pressure stop valve 4 ' is arranged on that pressurized cylinder 3 leads on the branch pipe(tube) of water tank 8, high-pressure stop valve 4 " be arranged on pressurized cylinder 3 and lead on the pipeline of shock-proof pressure gauge 9; Strainer 6 is arranged on the branch pipe(tube) on water tank 7 tops.；
During the utility model work, at first make preventer 5 sealing oil wells, high- pressure stop valve 4,4 ', 4 " be in normally open; handle input pressure oil in hydraulic fluid port that oil circuit control in control system of ground preventer 1 makes three-position four-way valve 101 rod chamber in the asymmetric servo cylinder 2; oil return in rodless cavity flows to fuel tank; piston 201 is to the motion of rodless cavity direction, form pressurized cylinder 3 cylinder chamber negative pressure and from water tank 8 water of inspiration respective cylinder chambers volume; Close high-pressure stop valve 4 ', make the rodless cavity in asymmetric servo cylinder 2 be full of pressure oil, oil return in rod chamber flows to fuel tank, piston 201 moves to the rod chamber direction, and drive as the water in the piston 301 extruding pressurized cylinder 3 cylinder chambeies of pressurized cylinder 3, the water that is extruded flows to respectively preventer 5 and shock-proof pressure gauge 9 by pipeline.According to hydraulic cylinder works calculation of pressure formula: F=10Ap (N), the supercharging principle of pressurized cylinder 3 is analyzed: in asymmetric servo cylinder 2, pressure oil p1 enters rodless cavity, the thrust F of piston 201
1=10A
1p
1(N), p
1=F
1/ 10A
1, p in formula
1The operating pressure of-pressure oil cavity (bar) .A
1Effective work area (cm of-piston
2); In pressurized cylinder 3, the single rod in asymmetric servo cylinder 2 is as pressurized cylinder piston 301, its thrust F
2=F
1=10A
2p
2(N), p
2=F
2/ 10A
2, p in formula
2Operating pressure (bar) .A of-hydraulic pressure output
2Effective work area (cm of-pressurized cylinder piston
2), due to A
2＜A
1So. p
2＞p
1, that is: enter pressure oil p in asymmetric servo cylinder 2 by the three-position four-way valve 101 in control system of ground preventer 1
1The hydraulic pressure p that exports after pressurized cylinder 3 superchargings
2P
1A
1/ A
2Doubly, played pressurized effect.When the cylinder chamber volume with pressurized cylinder 3 is designed to more than or equal to preventer 5 cavity volume, as long as once back and forth just can realize pressure testing to preventer 5 through the piston 201 in asymmetric servo cylinder 2, high efficiency, pressurized effect are good, pressure testing pulse free, examination value are accurate.
Claims (3)
1. a blowout preventer pressure-testing supercharging device, comprise control system of ground preventer, asymmetric servo cylinder, pressurized cylinder, high-pressure stop valve, preventer, shock-proof pressure gauge, strainer, water tank, it is characterized in that:
The rod chamber of described asymmetric servo cylinder and rodless cavity are connected with three-position four-way valve hydraulic fluid port in control system of ground preventer respectively;
One end of described pressurized cylinder is sealedly connected on the end that asymmetric servo cylinder has the bar control, and single rod stretches in pressurized cylinder and and the pressurized cylinder cylinder diameter between form matched in clearance;
The other end of described pressurized cylinder is provided with two through holes, and wherein two branch pipe(tube)s be connected with trunk line by trunk line of through hole connect respectively preventer and are connected the another through hole with water tank and directly connect shock-proof pressure gauge by pipeline.
2. a kind of blowout preventer pressure-testing supercharging device as claimed in claim 1, it is characterized in that described high-pressure stop valve is three, wherein one be arranged on pressurized cylinder lead on the branch pipe(tube) of preventer, one be arranged on pressurized cylinder lead on the branch pipe(tube) of water tank, one be arranged on pressurized cylinder and lead on the pipeline of shock-proof pressure gauge.
3. a kind of blowout preventer pressure-testing supercharging device as claimed in claim 1 or 2, is characterized in that described strainer is arranged on the branch pipe(tube) of water tank upper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220642423 CN203022678U (en) | 2012-11-06 | 2012-11-06 | Blowout preventer pressure testing and boosting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220642423 CN203022678U (en) | 2012-11-06 | 2012-11-06 | Blowout preventer pressure testing and boosting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203022678U true CN203022678U (en) | 2013-06-26 |
Family
ID=48646669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220642423 Expired - Fee Related CN203022678U (en) | 2012-11-06 | 2012-11-06 | Blowout preventer pressure testing and boosting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203022678U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006012A (en) * | 2014-05-12 | 2014-08-27 | 天津优瑞纳斯液压机械有限公司 | Oil and water supercharger system set |
| CN107228201A (en) * | 2016-03-25 | 2017-10-03 | 南京理工大学 | A kind of high-low pressure transition heat fluid supply apparatus |
| CN110116031A (en) * | 2019-06-24 | 2019-08-13 | 邯郸学院 | A kind of building waste recyclable device |
-
2012
- 2012-11-06 CN CN 201220642423 patent/CN203022678U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006012A (en) * | 2014-05-12 | 2014-08-27 | 天津优瑞纳斯液压机械有限公司 | Oil and water supercharger system set |
| CN107228201A (en) * | 2016-03-25 | 2017-10-03 | 南京理工大学 | A kind of high-low pressure transition heat fluid supply apparatus |
| CN107228201B (en) * | 2016-03-25 | 2019-06-04 | 南京理工大学 | A kind of high-low pressure transition heat fluid supply apparatus |
| CN110116031A (en) * | 2019-06-24 | 2019-08-13 | 邯郸学院 | A kind of building waste recyclable 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20161106 |