CN201103391Y - Hydraulic pressure test pressurizing pump of well control device - Google Patents
Hydraulic pressure test pressurizing pump of well control device Download PDFInfo
- Publication number
- CN201103391Y CN201103391Y CNU2007200805383U CN200720080538U CN201103391Y CN 201103391 Y CN201103391 Y CN 201103391Y CN U2007200805383 U CNU2007200805383 U CN U2007200805383U CN 200720080538 U CN200720080538 U CN 200720080538U CN 201103391 Y CN201103391 Y CN 201103391Y
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- CN
- China
- Prior art keywords
- pump
- pressurising
- control device
- pressure
- well control
- 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 - Lifetime
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Abstract
The utility model relates to a water pressure test pressurizing pump for oil and natural gas well control devices, which comprises a plurality of pressurizing pumps with different pressure discharges. The exit of each pressurizing pump is connected with a check valve in series, while the exit of the check valve is in parallel communicated with a device to be tested. The device of the utility model has the advantages of charging water in a well casing simultaneously, greatly shortening the pressurizing time and enhancing the working efficiency of tests.
Description
Technical field
The utility model relates to water test unit, relates in particular to the pressurising pump of this device, is used for to the pressurising of petroleum gas well control device.
Background technology
According to safety code, petroleum gas well control device must carry out the hydrostatic test, and the well control device that need carry out the hydrostatic test mainly contains: pit shaft, wellhead assembly, throttle well killing pipeline, blowout prevention pipeline, surface line etc.Existing test method is, extend according to volume, the test pressure of tested device, the pressurising pump of selecting corresponding discharge capacity and row pressure for use is to its pressurising, because volume, the test pressure of these tested devices have nothing in common with each other, so used pressurising pump size is many, quantity is many, investment is big, and utilization rate is not high, and installation, dismounting, transport amount before and after the test are big.Particularly; During the pit shaft hydrostatic test, only with a pressurising pump to pit shaft charged pressure water, owing to hole volume is big, the pressurising pump delivery is limited, pressurising is chronic, experiment work efficient is very low.
Summary of the invention
The purpose of this utility model provides a kind of well control device hydrostatic test pressurising pump group, and this pump group can satisfy the pressurising requirement of all well control devices, can shorten the pressurising time simultaneously to the pit shaft pressurising.Its technical solution is:
A kind of well control device hydrostatic test pressurising pump is characterized in that, comprises some pressurising pump and the control device thereof that row pressure is different, described each pressurising delivery side of pump parallel connection, and this parallel connection mouth is communicated with tested device.
Described each pressurising delivery side of pump with in parallel mouthful between, be in series with one way valve.
The pressurising pump that described some row pressures are different, what wherein row pressure was the highest is inflator pump, all the other are charging pumps.
Useful technique effect of the present utility model:
Because this pump group has some the pressurising pumps that row pressure is different, can satisfy the pressurising requirement of various tested objects.Particularly: all charging pumps can be simultaneously to the pit shaft water-filling, and when wellbore pressure was raised to the discharge pressure of certain charging pump, this charging pump cut out automatically, and all the other charging pumps are still simultaneously to the pit shaft water-filling.The rest may be inferred, and when the specified test pressure, all charging pumps cut out up to wellbore pressure, by the inflator pump inflation, makes wellbore pressure be raised to specified test pressure exactly, thereby shortened the pressurising time greatly at last, improved operating efficiency.In addition, because this pressurising device is an overall structure, convenient transportation directly connects tested object during test, need not to install, dismantle, and has reduced workload significantly, has reduced experimentation cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model
The specific embodiment
Referring to Fig. 1: this pump group is constituted by three pressurising pumps, and wherein, one is inflator pump, and other two is water pump.The inflator pump row pressure is the highest, is 140MPa, and rated discharge 13.3mm/ dashes; No. 1 charging pump row pressure 70MPa, discharge capacity 1200L/H, No. 2 charging pump row pressure 50MPa, discharge capacity 900L/H.Three pressurising pump discharges connect the one way valve group, and the parallel connection outlet of one way valve group is communicated with tested device.On the pipeline between each pump and the one way valve group, be respectively equipped with pressure-relief valve, on the pipeline between one way valve group and the tested device, be provided with system's pressure relief device and pressure sensor.
Be example now, the course of work of this pump group is described with the wellbore pressure test.
During the beginning pressurising, 1, No. 2 pump is opened simultaneously, and to the big discharge capacity water-filling of pit shaft, when wellbore pressure reached row pressure 50MPa, No. 2 charging pump cut out automatically, and No. 1 charging pump continues water-filling; When wellbore pressure during near 70MPa, No. 1 charging pump runs slowly, and reduces discharge capacity, and inflator pump starts simultaneously, charges into compressed air to pit shaft; When wellbore pressure reached row pressure 70MPa, No. 1 pump cut out automatically, stops water-filling, only by the air pump water-filling, continued ftercompction, up to the experimental pressure that requires.
Whole process is controlled automatically by control device, and its principle is: pressure sensor converts detected pressure signal to the signal of telecommunication, after controller is handled, to pump motor output control signal, controls it and starts or stops.
Pressurize is opened each pressure-relief valve after the time that requires, lay down the pressure of pressure testing device self, opens the pit shaft pressure relief device, lays down wellbore pressure, and whole work pressure test promptly comes to an end.
Other wellhead assembly pressure testing according to its required pressure, only needs to open a corresponding pump, can meet the demands.
Claims (3)
1. well control device hydrostatic test pressurising pump is characterized in that: comprise some pressurising pump and the control device thereof that row pressure is different, and described each pressurising delivery side of pump parallel connection, this parallel connection mouth is communicated with tested device.
2. well control device hydrostatic test pressurising pump according to claim 1 is characterized in that: described each pressurising delivery side of pump with in parallel mouthful between, be in series with one way valve.
3. well control device hydrostatic test pressurising pump according to claim 1 is characterized in that: the pressurising pump that described some row pressures are different, and what wherein row pressure was the highest is inflator pump, all the other are charging pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200805383U CN201103391Y (en) | 2007-08-03 | 2007-08-03 | Hydraulic pressure test pressurizing pump of well control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200805383U CN201103391Y (en) | 2007-08-03 | 2007-08-03 | Hydraulic pressure test pressurizing pump of well control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201103391Y true CN201103391Y (en) | 2008-08-20 |
Family
ID=39950416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200805383U Expired - Lifetime CN201103391Y (en) | 2007-08-03 | 2007-08-03 | Hydraulic pressure test pressurizing pump of well control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201103391Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209367B (en) * | 2014-08-21 | 2016-09-07 | 张家港市翔宇化工建材有限公司 | A kind of automatic washer wrapping machine |
-
2007
- 2007-08-03 CN CNU2007200805383U patent/CN201103391Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104209367B (en) * | 2014-08-21 | 2016-09-07 | 张家港市翔宇化工建材有限公司 | A kind of automatic washer wrapping machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080820 |
|
| CX01 | Expiry of patent term |