CN107655640A - A kind of Operating Pressure equipment sealing property method of testing and test device - Google Patents
A kind of Operating Pressure equipment sealing property method of testing and test device Download PDFInfo
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- CN107655640A CN107655640A CN201710929652.7A CN201710929652A CN107655640A CN 107655640 A CN107655640 A CN 107655640A CN 201710929652 A CN201710929652 A CN 201710929652A CN 107655640 A CN107655640 A CN 107655640A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The invention provides a kind of Operating Pressure equipment sealing property method of testing and test device.The base of described device fastens on ground anchor bolt and with locking nut, base top is sequentially arranged with double ram type preventer, three-way connection, single ram type perventer, annular preventer, main frame, support oil cylinder and anti-top hydraulic pressure pipe slips, aerodynamic testing platform is connected by pipeline with base, hydraulic system is double ram type preventer, single ram type perventer, annular preventer, it is anti-top hydraulic pressure pipe slips and support oil cylinder provides needed for hydraulic pressure.Methods described is carried out as follows：1st, preparation before testing；2nd, static seal is tested；3rd, dynamic sealing is tested.The test device is simple in construction, safe operation and conveniently, and method of testing is simple and easy to do.
Description
Technical field
The present invention relates to petrochemical equipment field, be related specifically to a kind of Operating Pressure equipment sealing property method of testing and
Test device.
Background technology
With going deep into for unconventional energy resource exploitation, in order to ensure the high yield of each oilfield, stable yields, extraordinary workover treatment is just
Increasingly increase, the also more and more higher of the requirement to equipment and operation technique, because
This snubbing serving equipment is a kind of new workover rig, and it is to carry out operation to Oil/gas Well in the case of no killing well, is
A kind of stable yields, energy-saving and environmental protection, the equipment of operation broad covered area.Will if the sealing property of Operating Pressure equipment does not reach design
Ask, when shunting in a well during equipment availability or temporarily, if annular preventer or ram preventer envelope do not live the band force feed in well
Gas, oil gas fluid leakage will be produced, certain potential safety hazard is caused to operation, severe patient causes serious accident, causes people
Member's injures and deaths and huge economic loss, thus the sealing property of equipment dispatch from the factory before will be detected, be the industrial application of equipment
Reliable basis and guarantee are provided, therefore measuring apparatus sealing property is particularly important.
Because in the market does not measure the device of the equipment sealing property, the sealing property of its equipment can not detect, and restrict
Using and developing for Operating Pressure equipment.
The content of the invention
It is an object of the invention to provide a kind of Operating Pressure equipment sealing property method of testing and test device, its purpose
One is：The dynamic sealing performance of static sealing performance, annular preventer to the ram preventer in equipment uses test device
Tested；Purpose two is：The relation between wellbore pressure and preventer oil cylinder working-pressure is found out, skill is provided for equipment normal use
Art is supported.
To achieve the above object, the technical scheme is that：
A kind of Operating Pressure equipment sealing property testing equipment, including hydraulic system, base, double ram type preventer, three-way connection,
Single ram type perventer, annular preventer, main frame, mandrel, oil pipe, support oil cylinder, anti-top hydraulic pressure pipe slips and aerodynamic testing platform, it is described
The base of device fastens on ground anchor bolt and with locking nut, and base top is equipped with double ram type preventer, double disc blowout prevention
Three-way connection is connected with connecting bolt on device, three-way connection top is equipped with single ram type perventer, and single ram type perventer top has
Annular preventer, annular preventer top are equipped with main frame, and main frame top is equipped with support oil cylinder, and support oil cylinder top is equipped with anti-top liquid
Slips is pressed, main frame and support oil cylinder centre are equipped with oil pipe, and aerodynamic testing platform is connected by pipeline with base, hydraulic system
Required hydraulic pressure is provided for double ram type preventer, single ram type perventer, annular preventer, anti-top hydraulic pressure pipe slips and support oil cylinder.
Described base upper and lower ends are respectively welded upper flange and lower flange, and high pressure sealing groove is provided with upper flange, under
High pressure intake is provided with flange, middle straight tube outside weldings have reinforcing plate, and mandrel is fitted with base, and mandrel passes through double disc
Preventer, three-way connection, single ram type perventer and annular preventer, it is connected with the mode of threaded connection with oil pipe.
The No.1 hydraulic pump of described hydraulic system respectively with No.1 overflow valve, No.1 pressure-reducing valve, No. two pressure-reducing valves, No. three
Pressure-reducing valve and preventer pressure-reducing valve are connected, and No. two hydraulic pumps are connected with No. two overflow valves and radiator respectively, and No.1 subtracts
Pressure valve is connected with No. three reversal valves, No. four reversal valves and No. five reversal valves respectively, No. three reversal valves and No.1 preventer oil cylinder
It is connected, No. four reversal valves are connected with No. two preventer oil cylinders, and No. five reversal valves are connected with No. three preventer oil cylinders, No. two
Pressure-reducing valve is connected with No.1 reversal valve, and No.1 reversal valve is connected with slips oil cylinder, No. three pressure-reducing valves and No. two reversal valve phases
Connection, No. two reversal valves are connected with support oil cylinder.
A kind of method of testing of Operating Pressure equipment sealing property, methods described are carried out as follows：
1st, preparation before testing：Base is passed through into ground anchor bolt, is fastened with locking nut after leveling, is filled successively in base upper end
Enter double ram type preventer, three-way connection, single ram type perventer, annular preventer, main frame, support oil cylinder and anti-top hydraulic pressure pipe slips,
And corresponding sealing ring everywhere is installed, each connection member is connected with connecting bolt, mandrel and oil pipe is connected as one, lifting
In in main frame, connecting each hydraulic line in hydraulic system, the No.1 overflow valve pressure of No.1 hydraulic pump, No. two liquid are regulated
The pressure of No. two overflow valves of press pump, regulate No.1 pressure-reducing valve, No. two pressure-reducing valves and No. three pressure-reducing valves, and preventer decompression
The pressure of valve, aerodynamic testing platform is connected with the high pressure intake on base, the topped up with water into blowout prevention device assembly；
2nd, static seal is tested：Start No.1 hydraulic pump and No. two hydraulic pumps, operation No.1 reversal valve makes slips oil cylinder rodless cavity
Pressurization, piston rod drive the slip insert in anti-top hydraulic pressure pipe slips to move down and clamp oil pipe, operate No. three reversal valves or No. four
Reversal valve, make No.1 preventer oil cylinder or No. two preventer oil cylinder pressurizations, single ram type perventer or double ram type preventer seal core
Axle forms annular space, starts the Pneumatic liquid booster pump on aerodynamic testing platform, is pressurizeed to being formed in annular space, is pressurized to examination
Required pressure is tested, water under high pressure is entered by the high pressure intake opened on the lower flange of base bottom, mandrel bottom is produced upward
Thrust, observe single ram type perventer or double ram type preventer and seal sealing condition at mandrel, it is anti-according to sealing situation adjustment
The pressure of spray apparatus pressure-reducing valve, measure corresponding pass of the annular space pressure with No.1 preventer oil cylinder or No. two preventer oil cylinder working-pressures
System, adjusts the pressure of water under high pressure, measures the static seal performance of the single ram type perventer or double ram type preventer under each pressure, above-mentioned
All oil returns of experiment are radiated by radiator, to keep oil temperature normal；
3rd, dynamic sealing is tested：Operation No.1 reversal valve makes slips oil cylinder rodless cavity pressurize, and piston rod drives anti-top hydraulic pressure pipe slips
In slip insert move down and clamp oil pipe, operate No. five reversal valves, annular preventer is pressurizeed by No. three preventer oil cylinders,
Annular preventer seals mandrel and forms annular space, starts the Pneumatic liquid booster pump on aerodynamic testing platform, into annular space
Pressurization, the pressure needed for experiment is pressurized to, water under high pressure is entered by the high pressure intake opened on the lower flange of base bottom, to core
Axle bottom produces upward thrust, and No. two reversal valves of operation make support oil cylinder be pressurizeed under rodless cavity or rod chamber state, supporting leg
Oil cylinder drives anti-top hydraulic pressure pipe slips to be moved upwardly or downwardly, and detects that annular preventer seals the close of mandrel in the motion of oil pipe
Envelope situation, according to the pressure of sealing situation adjustment preventer pressure-reducing valve, measure annular space pressure and No. three preventer oil cylinder pressures
The corresponding relation of power, the pressure of water under high pressure is adjusted, measure the dynamic sealing performance of the annular preventer under each pressure, above-mentioned experiment
All oil returns are radiated by radiator, to keep the normal of oil temperature.
Compared with prior art, the positive effect of the present invention is：
1st, this method uses Operating Pressure equipment sealing property tester, detects single disc (or double disc) preventer
Static seal performance, the size that oil cylinder provides load are controlled by the pressure for adjusting corresponding pressure-reducing valve；The experiment have found pit shaft
Relation between interior pressure and single disc (or double disc) preventer oil cylinder working-pressure, according to wellbore pressure, adjust single disc
The suitable pressure of (or double disc) preventer oil cylinder, reaches preferable sealing state, is effectively improved the operation effect of equipment
Rate, potential safety hazard is eliminated, also improve the service life of equipment；
2nd, this method uses Operating Pressure equipment sealing property tester, detects the dynamic sealing performance of annular preventer;Oil
The size that cylinder provides load is controlled by the pressure for adjusting corresponding pressure-reducing valve；The experiment have found oil pipe during exercise in pit shaft
Pressure and annular preventer oil cylinder working-pressure between relation, according to wellbore pressure, regulation annular preventer oil cylinder is suitably pressed
Power, reaches preferable sealing state, effectively reduces the abrasion of equipment, extends the service life of equipment, reduces operation
Cost, it is effectively improved operating efficiency；
3rd, 2 kinds of leakage tests more than, improve the quality of equipment, extend the service life of equipment, won user's
Trust, broken the advantage of external Operating Pressure technical monopoly, equipment realizes what is gone abroad by dependence import to batch outlet
Historical breakthrough, the production domesticization of Operating Pressure equipment is realized, create preferable economic benefit；
4th, the test device is simple in construction, safe operation and conveniently.
Brief description of the drawings
Fig. 1, Operating Pressure equipment sealing property testing equipment structural representation；
Fig. 2, test device base and oil tube connection structure schematic diagram；
Fig. 3, test device hydraulic circuit structure schematic diagram.
Embodiment
Clear, complete description is further carried out to technical scheme below in conjunction with the accompanying drawings.（Referring to Fig. 1-3）
1st, the preparation before testing：Base 1 be welded by upper flange 32, lower flange 35 with straight tube 33, reinforcing plate 34 it is barrel-shaped
Structure, 35 blind hole flanges of lower flange, there is a circle bolt hole at periphery.Base 1 is passed through into ground anchor bolt, locking screw is used after leveling
Mother 25 fastens, and sealing ring is put into the high pressure sealing groove 31 opened on upper flange 32, connecting bolt is used successively in the upper end of base 1
26 connect double ram type preventer 2, three-way connection 3, single ram type perventer 4, annular preventer 5, main frame 6, support oil cylinder 17 respectively
Hydraulic pressure pipe slips 8 are pushed up with anti-, and install the sealing ring of each junction, mandrel 9 is connected as one with the mode of threaded connection with oil pipe 7
Body, and be lifted in main frame 6.Each hydraulic line in hydraulic system is connected, regulates the overflow valve 12 of No.1 hydraulic pump 11
Pressure, the pressure of the overflow valve 37 of No. two hydraulic pumps 23, regulates 13, No. two pressure-reducing valves 16 of No.1 pressure-reducing valve and No. three subtract
Pressure valve 18, and the pressure of preventer pressure-reducing valve 20, aerodynamic testing platform 10 is connected with the high pressure intake 36 on base 1,
And the topped up with water into blowout prevention device assembly.
2nd, static seal is tested：Start No.1 hydraulic pump 11 and No. two hydraulic pumps 23, operation No.1 reversal valve 15 makes Kava oil
Cylinder 14 pressurizes without bar cavity, and piston rod drives the slip insert in anti-top hydraulic pressure pipe slips 8 to move down and clamps oil pipe 7, operation three
Number reversal valve 21 or No. four reversal valves 27, make No.1 preventer oil cylinder 22 or No. two preventer oil cylinders 28 pressurize, single disc blowout prevention
Device 4 or double ram type preventer 2 seal mandrel 9 and form annular space, start the Pneumatic liquid booster pump on aerodynamic testing platform 10, to
Formed in annular space and pressurizeed, be pressurized to pressure needed for experiment, water under high pressure is by the high pressure opened on the lower flange 35 of the bottom of base 1
Water inlet 36 enters, and upward thrust is produced to the bottom of mandrel 9, observes single ram type perventer 4 or double ram type preventer 2 seals core
Sealing condition at axle 9, according to the pressure of sealing situation adjustment preventer pressure-reducing valve 20, measure annular space pressure and prevent with No.1
The corresponding relation of spray apparatus oil cylinder 22 or No. two pressure of preventer oil cylinder 28, the pressure of water under high pressure is adjusted, measures the list under each pressure
The static seal performance of ram preventer 4 or double ram type preventer 2, all oil returns of above-mentioned experiment are dissipated by radiator 24
Heat, to keep oil temperature normal；
3rd, dynamic sealing is tested：No. 1 reversal valve 15 of operation makes slips oil cylinder 14 be pressurizeed without bar cavity, and piston rod drives anti-top hydraulic pressure card
Slip insert in watts 8, which moves down, clamps oil pipe 7, operates No. five reversal valves 29, makes annular preventer 5 by No. three preventer oil
Cylinder 30 pressurizes, and annular preventer 5 seals mandrel 9 and forms annular space, starts the Pneumatic liquid booster pump on aerodynamic testing platform 10,
Pressurizeed into annular space, be pressurized to the pressure needed for experiment, water under high pressure is by the high pressure opened on the lower flange 35 of the bottom of base 1
Water inlet 36 enters, and produces upward thrust to the bottom of mandrel 9, No. two reversal valves 19 of operation make support oil cylinder 17 in rodless cavity or
Pressurizeed under rod chamber state, support oil cylinder 17 drives anti-top hydraulic pressure pipe slips 8 to be moved upwardly or downwardly, and is examined in the motion of oil pipe 7
The sealing condition that annular preventer 5 seals mandrel 9 is measured, according to the pressure of sealing situation adjustment preventer pressure-reducing valve 20, is measured
The corresponding relation of annular space pressure and No. three pressure of preventer oil cylinder 30, the pressure of water under high pressure is adjusted, is measured under each pressure
The dynamic sealing performance of annular preventer 5, all oil returns of above-mentioned experiment are radiated by radiator 24, to keep oil temperature
Normally.
All features disclosed in this specification, or it is disclosed it is all during the step of, except mutually exclusive feature
And/or beyond step, it can combine in any way.This specification（Including claim, summary）Disclosed in any spy
Sign, unless specifically stated otherwise, can alternative features equivalent by other or with similar purpose replaced.Remove and non-specifically chat
State, each feature is an example in a series of equivalent or similar characteristics.
Described above is only the non-limiting embodiment of the present invention, substantial amounts of embodiment can also be derived, for ability
For the those of ordinary skill in domain, the invention design is not being departed from and on the premise of not making creative work, can be with
The embodiment of several modifications and improvements is made, these belong to protection scope of the present invention.
Claims (4)
1. a kind of Operating Pressure equipment sealing property testing equipment, including hydraulic system, base（1）, double ram type preventer（2）、
Three-way connection（3）, single ram type perventer（4）, annular preventer（5）, main frame（6）, oil pipe（7）, support oil cylinder（17）, anti-top liquid
Press slips（8）, mandrel（9）With aerodynamic testing platform（10）, it is characterised in that：The base of described device（1）On ground anchor bolt
And use locking nut（25）Fastening, base（1）Top is equipped with double ram type preventer（2）, double ram type preventer（2）Upper connection spiral shell
Bolt（26）It is connected with three-way connection（3）, three-way connection（3）Top is equipped with single ram type perventer（4）, single ram type perventer（4）On
There is annular preventer in portion（5）, annular preventer（5）Top is equipped with main frame（6）, main frame（6）Top is equipped with support oil cylinder（17）, branch
Leg oil cylinder（17）Top is equipped with anti-top hydraulic pressure pipe slips（8）, main frame（6）And support oil cylinder（17）Centre is equipped with oil pipe（7）, gas
Dynamic test platform（10）Pass through pipeline and base（1）It is connected, hydraulic system is double ram type preventer（2）, single ram type perventer
（4）, annular preventer（5）, anti-top hydraulic pressure pipe slips（8）And support oil cylinder（17）Hydraulic pressure needed for providing.
2. Operating Pressure equipment sealing property testing equipment according to claim 1, it is characterised in that：Described base
（1）Upper and lower ends are respectively welded upper flange（32）And lower flange（35）, upper flange（32）On be provided with high pressure sealing groove（31）, under
Flange（35）On be provided with high pressure intake（36）, middle straight tube（33）Outside weldings have reinforcing plate（34）, base（1）Inside it is fitted with
Mandrel（9）, mandrel（9）Through double ram type preventer（2）, three-way connection（3）, single ram type perventer（4）And annular preventer
（5）, with the mode and oil pipe of threaded connection（7）It is connected.
3. Operating Pressure equipment sealing property testing equipment according to claim 1, it is characterised in that：Described hydraulic pressure system
The No.1 hydraulic pump of system（11）Respectively with overflow valve（12）, No.1 pressure-reducing valve（13）, No. two pressure-reducing valves（16）, No. three pressure-reducing valves
（18）And preventer pressure-reducing valve（20）It is connected, No. two hydraulic pumps（23）Respectively with overflow valve (37) and radiator（24）It is connected
Connect, No.1 pressure-reducing valve（13）Respectively with No. three reversal valves（21）, No. four reversal valves（27）With No. five reversal valves（29）It is connected, three
Number reversal valve（21）With No.1 preventer oil cylinder（22）It is connected, No. four reversal valves（27）With No. two preventer oil cylinders（28）It is connected
Connect, No. five reversal valves（29）With No. three preventer oil cylinders（30）It is connected, No. two pressure-reducing valves（16）With No.1 reversal valve（15）Phase
Connection, No.1 reversal valve（15）With slips oil cylinder（14）It is connected, No. three pressure-reducing valves（18）With No. two reversal valves（19）It is connected,
No. two reversal valves（19）With support oil cylinder（17）It is connected.
A kind of 4. method of testing of Operating Pressure equipment sealing property, it is characterised in that：Methods described is carried out as follows：
（1）Preparation before test：By base（1）Through ground anchor bolt, locking nut is used after leveling（25）Fastening, in base
（1）Upper end is sequentially loaded into double ram type preventer（2）, three-way connection（3）, single ram type perventer（4）, annular preventer（5）, main frame
（6）, support oil cylinder（17）With anti-top hydraulic pressure pipe slips（8）, and corresponding sealing ring everywhere is installed, each connection member connecting bolt
（26）It is connected, by mandrel（9）With oil pipe（7）Connect as one, be lifted on main frame（6）It is interior, in the hydraulic system connected
Each hydraulic line, regulate No.1 hydraulic pump（11）Overflow valve（12）Pressure and No. two hydraulic pumps（23）Overflow valve（37）
Pressure, regulate No.1 pressure-reducing valve（13）, No. two pressure-reducing valves（16）With No. three pressure-reducing valves（18）, and preventer pressure-reducing valve
（20）Pressure, by aerodynamic testing platform（10）With base（1）On high pressure intake（36）It is connected, adds into blowout prevention device assembly
Full water；
（2）Static seal is tested：Start No.1 hydraulic pump（11）With No. two hydraulic pumps（23）, operate No.1 reversal valve（15）Make slips
Oil cylinder（14）Pressurizeed without bar cavity, piston rod drives anti-top hydraulic pressure pipe slips（8）In slip insert move down and clamp oil pipe
（7）, operate No. three reversal valves（21）Or No. four reversal valves（27）, make No.1 preventer oil cylinder（22）Or No. two preventer oil cylinders
（28）Pressurization, single ram type perventer（4）Or double ram type preventer（2）Seal mandrel（9）Annular space is formed, starts aerodynamic testing
Platform（10）On Pneumatic liquid booster pump, to formed annular space in pressurize, be pressurized to experiment needed for pressure, water under high pressure is by base
（1）The lower flange of bottom（35）On the high pressure intake opened（36）Into to mandrel（9）Bottom produces upward thrust, sees
Examine single ram type perventer（4）Or double ram type preventer（2）Seal mandrel（9）The sealing condition at place, it is anti-according to sealing situation adjustment
Spray apparatus pressure-reducing valve（20）Pressure, measure annular space pressure and No.1 preventer oil cylinder（22）Or No. two preventer oil cylinders（28）
The corresponding relation of pressure, the pressure of water under high pressure is adjusted, measure the single ram type perventer under each pressure（4）Or double ram type preventer
（2）Static seal performance, all oil returns of above-mentioned experiment pass through radiator（24）Radiated, to keep oil temperature normal；
（3）Dynamic sealing is tested：Operate No.1 reversal valve（15）Make slips oil cylinder（14）Pressurizeed without bar cavity, piston rod drives anti-top
Hydraulic pressure pipe slips（8）In slip insert move down and clamp oil pipe（7）, operate No. five reversal valves（29）, make annular preventer（5）
By No. three preventer oil cylinders（30）Pressurization, annular preventer（5）Seal mandrel（9）Annular space is formed, starts aerodynamic testing platform
（10）On Pneumatic liquid booster pump, pressurizeed into annular space, be pressurized to experiment needed for pressure, water under high pressure is by base（1）
The lower flange of bottom（35）On the high pressure intake opened（36）Into to mandrel（9）Bottom produces upward thrust, operation two
Number reversal valve（19）Make support oil cylinder（17）Pressurizeed under rodless cavity or rod chamber state, support oil cylinder（17）Drive anti-top hydraulic pressure
Slips（8）It is moved upwardly or downwardly, in oil pipe（7）Motion in detect annular preventer（5）Seal mandrel（9）Sealing shape
Condition, according to sealing situation adjustment preventer pressure-reducing valve（20）Pressure, measure annular space pressure and No. three preventer oil cylinders
（30）The corresponding relation of pressure, the pressure of water under high pressure is adjusted, measure the annular preventer under each pressure（5）Dynamic sealing performance,
Radiator is passed through in all oil returns of above-mentioned experiment（24）Radiated, to keep the normal of oil temperature.
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| CN201710929652.7A CN107655640B (en) | 2017-10-09 | 2017-10-09 | A kind of Operating Pressure equipment sealing performance test method and test device |
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| CN201710929652.7A CN107655640B (en) | 2017-10-09 | 2017-10-09 | A kind of Operating Pressure equipment sealing performance test method and test device |
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| CN108468663A (en) * | 2018-05-31 | 2018-08-31 | 中石化四机石油机械有限公司 | A kind of Operating Pressure lift controlling system |
| CN108489722A (en) * | 2018-04-03 | 2018-09-04 | 盐城市大冈石油工具厂有限责任公司 | The multi-functional load test device of preventer |
| CN109141778A (en) * | 2018-10-25 | 2019-01-04 | 徐州市全球通精密钢管有限公司 | A kind of ultrahigh-pressure hydraulic sealing test device and test method |
| CN111458083A (en) * | 2020-03-11 | 2020-07-28 | 中国石油集团渤海钻探工程有限公司 | Sealing test pressure testing device for rotary blowout preventer and application thereof |
| CN112985866A (en) * | 2021-03-16 | 2021-06-18 | 西南石油大学 | Pipeline plugging robot slips and rubber cylinder performance analysis test system and method |
| CN114354092A (en) * | 2021-12-29 | 2022-04-15 | 烟台杰瑞石油装备技术有限公司 | Testing device and testing method for blowout prevention box |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108489722A (en) * | 2018-04-03 | 2018-09-04 | 盐城市大冈石油工具厂有限责任公司 | The multi-functional load test device of preventer |
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| CN109141778B (en) * | 2018-10-25 | 2024-03-12 | 徐州市全球通精密钢管有限公司 | Ultrahigh-pressure hydraulic seal testing device and testing method |
| CN111458083A (en) * | 2020-03-11 | 2020-07-28 | 中国石油集团渤海钻探工程有限公司 | Sealing test pressure testing device for rotary blowout preventer and application thereof |
| CN112985866A (en) * | 2021-03-16 | 2021-06-18 | 西南石油大学 | Pipeline plugging robot slips and rubber cylinder performance analysis test system and method |
| CN114354092A (en) * | 2021-12-29 | 2022-04-15 | 烟台杰瑞石油装备技术有限公司 | Testing device and testing method for blowout prevention box |
| CN114354092B (en) * | 2021-12-29 | 2023-08-11 | 烟台杰瑞石油装备技术有限公司 | Testing device and testing method for blowout prevention box |
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| CN107655640B (en) | 2019-11-22 |
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