CN208203677U - A kind of 30000Psi super-pressure well head safe control system - Google Patents
A kind of 30000Psi super-pressure well head safe control system Download PDFInfo
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- CN208203677U CN208203677U CN201820728373.4U CN201820728373U CN208203677U CN 208203677 U CN208203677 U CN 208203677U CN 201820728373 U CN201820728373 U CN 201820728373U CN 208203677 U CN208203677 U CN 208203677U
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Abstract
The utility model discloses a kind of 30000Psi super-pressure well head safe control systems, including high-pressure hydraulic, super high pressure underground safety valve hydraulic control trunk roads, low voltage control system；The high-pressure hydraulic includes safety valve hydraulic control trunk roads on well, and safety valve hydraulic control trunk roads include safe flutter valve branch on safe main valve branch and well on well on the well；The low voltage control system includes fusible plug controlling brancher, safe main valve pilot control branch on well, safe flutter valve pilot control branch and storm valve pilot control branch on well；The super high pressure underground safety valve hydraulic control trunk roads pressure is increased to 30000psi to meet the unlatching needs of control target storm valve；The fusible plug controlling brancher causes the shutdown of safe flutter valve on safe main valve and well on storm valve and well by pressure release.The utility model solves the problems, such as that existing well head control panel reaches 30000Psi in pressure and cannot achieve complete electro-hydraulic automatic control, realizes the well head control panel of super high pressure oil gas well electro-hydraulic automation control entirely.
Description
Technical field
The utility model relates to well head safe control system, in particular to a kind of 30000Psi (206MPa) super-pressure well head
Safety control system.
Background technique
Well head control panel is the important equipment of oilfield safety production, when well site fire or production flow line pressure anomaly, control
Logical program emergency shutdown and remote emergency shutdown can be realized automatically in system processed.
Conventional well head control panel highest output pressure 15000psi (103MPa), in order to meet the production of superpressure oil-gas field development
It needs, it is desirable that well head control panel operating pressure reaches 30000psi (206MPa), for the well more than 15000psi (103MPa)
Mouthful control panel, generally using electrical plunger pump and manual pump combination as hydraulic power supply in industry, more than 15000psi
The pressure of (103MPa) is needed using manual pump ftercompction, therefore complete electro-hydraulic automation control cannot be achieved in which, meets not
The demand in the unattended well site of oil gas field, or using gas drive liquid pump as hydraulic power supply, but which needs oil field to mention
For nitrogen or compressed air, oil field is needed additionally to configure the supercharging equipments such as air compressor machine.Therefore a kind of 30000Psi is especially needed
The complete electro-hydraulic super-pressure Wellhead Control System of (206MPa), to solve the technology hardly possible of the full electrichydraulic control of super-pressure well head control panel
Topic, and realize the well head control panel of super high pressure oil gas well electro-hydraulic automation control entirely.
Utility model content
The purpose of the utility model is to overcome deficiencies in the prior art, provide a kind of 30000Psi (206MPa) super-pressure
Well head safe control system, the utility model Wellhead Control System solve existing conventional well head control panel and reach in pressure
30000Psi (206MPa) cannot achieve the problem of complete electro-hydraulic automatic control, and the well head control panel for realizing super high pressure oil gas well is complete
Electro-hydraulic automation control.
The technical scheme adopted by the utility model is a kind of 30000Psi super-pressure well head safe control system, including
High-pressure hydraulic, super high pressure underground safety valve hydraulic control trunk roads, low voltage control system；
The high-pressure hydraulic includes safety valve hydraulic control trunk roads on well, and safety valve hydraulic control trunk roads is defeated on the well
Enter end to be connected with the high-pressure hydraulic, including safe flutter valve branch on safe main valve branch and well on well, on the well
The output end of safe flutter valve branch is respectively connected on well safe wing on safe main valve and well on safe main valve branch and the well
Valve；
The input terminal of the super high pressure underground safety valve hydraulic control trunk roads is connected with high-pressure hydraulic, output end connection
To storm valve；
The low voltage control system includes fusible plug controlling brancher, safe main valve pilot control branch on well, safety on well
Flutter valve pilot control branch and storm valve pilot control branch；The input terminal and high-pressure and hydraulic of the fusible plug controlling brancher
System is connected, and passes through safe main valve pilot control branch on well, safe flutter valve pilot control branch and underground on well respectively
Safe main valve branch on safety valve pilot control branch and the well, safe flutter valve branch and super high pressure underground safety valve liquid on well
Control trunk roads are connected.
Further, the high-pressure hydraulic includes being sequentially connected in series: fuel tank, electric hydraulic pump, the first check valve,
Four pressure gauges, the 4th pressure transmitter, the 4th safety valve, the first accumulator, the first pressure regulator valve.
Wherein, the high-pressure hydraulic further includes back-up system, and the back-up system is in parallel with electric hydraulic pump, including
Hydraulic hand-pump interconnected and second one-way valve, the input terminal of the hydraulic hand-pump is connected with the fuel tank, described
The output end of second one-way valve is connected on the 4th pressure gauge.
Further, safety valve hydraulic control trunk roads include as safe flutter valve on main valve safe on well and well on the well
Second accumulator of emergency power supply, the input terminal and the first pressure regulator valve phase of the high-pressure hydraulic of second accumulator
Connection, the output end of second accumulator are separately connected on the well safe flutter valve branch on safe main valve branch and well.
Wherein, safe main valve branch includes being sequentially connected in series on the well: the second pilot valve, second pressure gauge, the second peace
Full valve, second pressure transmitter, the second quick release valve, input terminal and the safety valve hydraulic control on the well of second pilot valve
Second accumulator of trunk roads is connected, and the output end of second quick release valve is connected on control target well and leads safely
Valve.
Wherein, safe flutter valve branch includes being sequentially connected in series on the well: the first pilot valve, first pressure gauge, the first peace
Full valve, first pressure transmitter, the first quick release valve, input terminal and the safety valve hydraulic control on the well of first pilot valve
Second accumulator of trunk roads is connected, and the output end of first quick release valve is connected to safe wing on control target well
Valve.
Further, the super high pressure underground safety valve hydraulic control trunk roads include being sequentially connected in series: ultrahigh-pressure intensifier,
Three check valves, third accumulator, third safety valve, third pilot valve, third pressure gauge, third pressure transmitter, the superelevation
The input terminal of pressure booster pump is connected on the 4th pressure gauge of the high-pressure hydraulic, the output of the third pressure transmitter
End is connected to control target storm valve；When high-pressure hydraulic pressure is increased to 5000Psi, then passes through super-pressure and increase
Press pump pressure is increased to 30000psi to meet the unlatching needs of control target storm valve.
Further, the fusible plug controlling brancher includes being sequentially connected in series: the second pressure regulator valve, the 5th pressure gauge, the 5th
Safety valve, the 4th accumulator, charge valve, the 4th check valve, the 5th pressure transmitter, fusible plug, second pressure regulator valve it is defeated
Enter end to be connected in the connecting pipeline between the 4th safety valve of the high-pressure hydraulic and the first accumulator, as low pressure control
The pressure source of system processed；It further include reversal valve and damping hole, the reversal valve, damping hole and charge valve, the 4th check valve composition
Self-locking circuit；After pressing charge valve, fusible plug controlling brancher is by the ftercompction of self-locking circuit automatic fine, when fire police occurs for well head
When feelings, fusible plug fusing makes fusible plug controlling brancher pressure release, causes to pacify on safe main valve and well on storm valve and well
The shutdown of all-wing valve.
Wherein, the storm valve pilot control branch includes third solenoid valve, third time-delay valve, third state instruction
Device；Safe main valve pilot control branch includes second solenoid valve, the second time-delay valve, the second positioning indicator on the well；It is described
Safe flutter valve pilot control branch includes the first solenoid valve on well；The third solenoid valve, second solenoid valve, the first solenoid valve according to
Secondary series connection, it is first respectively as flutter valve safe on main valve pilot control branch safe on storm valve pilot control branch, well, well
Lead the starting point of controlling brancher；
The input terminal of the third solenoid valve be connected to the fusible plug controlling brancher the 4th accumulator and charge valve it
Between connecting pipeline on, the outlet end of the third solenoid valve is sequentially connected third time-delay valve, third state indicator, described
The output end of three condition indicator is connected to the guide end of the third pilot valve of the super high pressure underground safety valve hydraulic control trunk roads
On；
The outlet end of the second solenoid valve is sequentially connected the second time-delay valve, the second positioning indicator, second state
The output end of indicator is connected on the well on the guide end of the second pilot valve of safe main valve branch；
The outlet end of first solenoid valve is connected to the guide end of the first pilot valve of safe flutter valve branch on the well
On.
The beneficial effects of the utility model are: the utility model well head safe control system solves existing conventional well head control
Disk processed reaches the problem that 30000Psi (206MPa) cannot achieve complete electro-hydraulic automatic control in pressure, realizes super high pressure oil gas well
Well head control panel electro-hydraulic automation control entirely.The utility model meets the requirement of superpressure oil-gas field development production.
Detailed description of the invention
A kind of Fig. 1: 30000Psi super-pressure well head safe control system schematic diagram of the utility model.
Attached drawing mark: 1, fuel tank；2, electric hydraulic pump；3, hydraulic hand-pump；4, the first check valve；5, second one-way valve；
6, the 4th pressure gauge；7, the 4th pressure transmitter；8, the 4th safety valve；9, the first accumulator；10, the first pressure regulator valve；11, superelevation
Press booster pump；12, third check valve；13, third accumulator；14, the second pressure regulator valve；15, the 5th pressure gauge；16, the 4th accumulation of energy
Device；17, charge valve；18, the 4th check valve；19, reversal valve；20, damping hole；21, the 5th pressure transmitter；22, fusible plug；
23, the 5th safety valve；24, third solenoid valve；25, second solenoid valve；26, the first solenoid valve；27, the first pilot valve；28, first
Pressure gauge；29, first pressure transmitter；30, the first quick release valve；31, safe flutter valve on well；32, the second time-delay valve；33,
Second positioning indicator；34, the first safety valve；35, second pressure gauge；36, second pressure transmitter；37, the second quick release
Valve；38, safe main valve on well；39, the second pilot valve；40, the second safety valve；41, third time-delay valve；42, the third state indicates
Device；43, third pilot valve；44, third pressure gauge；45, third pressure transmitter；46, storm valve；47, third safety valve；
48, the second accumulator.
Specific embodiment
For the utility model content, feature and effect that can further appreciate that the utility model, the following examples are hereby given, and
It is described in detail with the accompanying drawings as follows:
As shown in Fig. 1, a kind of 30000Psi super-pressure well head safe control system, including high-pressure hydraulic, superelevation
Press storm valve hydraulic control trunk roads, low voltage control system.
The high-pressure hydraulic is as safety valve hydraulic control trunk roads on well and super high pressure underground safety valve hydraulic control trunk roads
Power source, including what is be sequentially connected in series: fuel tank 1, electric hydraulic pump 2, the first check valve 4, the 4th pressure gauge 6, the 4th pressure become
Send device 7, the 4th safety valve 8, the first accumulator 9, the first pressure regulator valve 10.Secondly, the high-pressure hydraulic further includes spare system
System, the back-up system is in parallel with electric hydraulic pump 2, including hydraulic hand-pump interconnected 3 and second one-way valve 5, described
Hydraulic hand-pump 3 is used as stand-by pump, and the input terminal of the hydraulic hand-pump 3 is connected with the fuel tank 1, the second one-way valve
5 output end is connected on the 4th pressure gauge 6.The output pressure of 4th pressure gauge 6 display pump.
The high-pressure hydraulic includes safety valve hydraulic control trunk roads on well, and safety valve hydraulic control trunk roads is defeated on the well
Enter end to be connected with the high-pressure hydraulic, including safe flutter valve branch on safe main valve branch and well on well, on the well
The output end of safe flutter valve branch is respectively connected on well safety on safe main valve 38 and well on safe main valve branch and the well
Flutter valve 31；
Wherein, safety valve hydraulic control trunk roads include the second accumulator 48, the input of second accumulator 48 on the well
End is connected with the first pressure regulator valve 10 of the high-pressure hydraulic, and the output end of second accumulator 48 is separately connected described
Safe flutter valve branch on safe main valve branch and well on well；Second accumulator 48 is used as on well pacifies on safe main valve 38 and well
The emergency power supply of all-wing valve 31.
Wherein, safe main valve branch includes being sequentially connected in series on the well: the second pilot valve 39, second pressure gauge 35,
Two safety valves 40, second pressure transmitter 36, the second quick release valve 37, the input terminal and the well of second pilot valve 39
Second accumulator 48 of upper safety valve hydraulic control trunk roads is connected, and the output end of second quick release valve 37 is connected to controlled
Safe main valve 38 on object well processed；
Wherein, safe flutter valve branch includes being sequentially connected in series on the well: the first pilot valve 27, first pressure gauge 28,
One safety valve 34, first pressure transmitter 29, the first quick release valve 30, the input terminal and the well of first pilot valve 27
Second accumulator 48 of upper safety valve hydraulic control trunk roads is connected, and the output end of first quick release valve 30 is connected to controlled
Safe flutter valve 31 on object well processed.
The input terminal of the super high pressure underground safety valve hydraulic control trunk roads is connected with high-pressure hydraulic, output end connection
To storm valve 46.The super high pressure underground safety valve hydraulic control trunk roads include being sequentially connected in series: ultrahigh-pressure intensifier 11,
Three check valves 12, third accumulator 13, third safety valve 47, third pilot valve 43, third pressure gauge 44, third pressure transmitter
45, the input terminal of the ultrahigh-pressure intensifier 11 is connected on the 4th pressure gauge 6 of the high-pressure hydraulic, the third pressure
The output end of power transmitter 45 is connected to control target storm valve 46；When high-pressure hydraulic pressure is increased to
5000Psi (34MPa), then 30000psi (206MPa) pressure is increased to meet by control pair by ultrahigh-pressure intensifier 11
As the unlatching of storm valve 46 needs.
The low voltage control system includes fusible plug controlling brancher, safe main valve pilot control branch on well, safety on well
Flutter valve pilot control branch and storm valve pilot control branch；The input terminal and high-pressure and hydraulic of the fusible plug controlling brancher
System is connected, and passes through safe main valve pilot control branch on well, safe flutter valve pilot control branch and underground on well respectively
Safe main valve branch on safety valve pilot control branch and the well, safe flutter valve branch and super high pressure underground safety valve liquid on well
Control trunk roads are connected；
Wherein, the fusible plug controlling brancher includes being sequentially connected in series: the second pressure regulator valve 14, the 5th pressure gauge the 15, the 5th
Safety valve 23, the 4th accumulator 16, charge valve 17, the 4th check valve 18, the 5th pressure transmitter 21, fusible plug 22, described
The input terminal of two pressure regulator valves 14 is connected to the connection between the 4th safety valve 8 of the high-pressure hydraulic and the first accumulator 9
Pressure source on pipeline, as low voltage control system；The fusible plug controlling brancher further includes reversal valve 19 and damping hole 20, institute
State reversal valve 19, damping hole 20 and charge valve 17, the 4th check valve 18 composition self-locking circuit；After pressing charge valve 17, fusible plug
Controlling brancher is by the ftercompction of self-locking circuit automatic fine, and when fire alert occurs for well head, fusible plug 22 melts, and makes meltable
Controlling brancher pressure release is filled in, the shutdown of safe flutter valve 31 on safe main valve 38 and well on storm valve 46 and well is caused；
Wherein, the storm valve pilot control branch includes third solenoid valve 24, third time-delay valve 41, the third state
Indicator 42；Safe main valve pilot control branch includes that second solenoid valve 25, the second time-delay valve 32, the second state refer on the well
Show device 33；Safe flutter valve pilot control branch includes the first solenoid valve 26 on the well；The third solenoid valve 24, the second electromagnetism
Valve 25, the first solenoid valve 26 are sequentially connected in series, respectively as safe main valve pilot control on storm valve pilot control branch, well
The starting point of safe flutter valve pilot control branch on branch, well；
The input terminal of the third solenoid valve 24 is connected to the 4th accumulator 16 and the inflation of the fusible plug controlling brancher
In connecting pipeline between valve 17, the outlet end of the third solenoid valve 24 is sequentially connected third time-delay valve 41, the third state refers to
Show that device 42, the output end of the third state indicator 42 are connected to the third of the super high pressure underground safety valve hydraulic control trunk roads
On the guide end of pilot valve 43；The outlet end of the second solenoid valve 25 is sequentially connected the second time-delay valve 32, the second state instruction
Device 33, the output end of second positioning indicator 33 are connected to the elder generation of the second pilot valve 39 of safe main valve branch on the well
It leads on end；The outlet end of first solenoid valve 26 is connected to the guide of the first pilot valve 27 of safe flutter valve branch on the well
On end.
When the fusing of fusible plug 22 or third 24 power loss of solenoid valve, the shutdown of safety valve can be caused, be first shut off on well
Safe flutter valve 31 is delayed secondly by safe main valve 38 on the second time-delay valve 32 delay 15s shutdown well by third time-delay valve 41
30s turns off storm valve 46.
To sum up, the utility model Wellhead Control System passes through pressure super high pressure underground safety valve hydraulic control trunk roads, low voltage control
The multiple functions such as system, electro-hydraulic automation control needs the well head control panel suitable for super high pressure oil gas well entirely.
Although being described above in conjunction with preferred embodiment of the attached drawing to the utility model, the utility model is not
It is confined to above-mentioned specific embodiment, the above mentioned embodiment is only schematical, is not restrictive, ability
The those of ordinary skill in domain is not departing from the utility model aims and claimed under the enlightenment of the utility model
Under ambit, many forms can also be made, these are belonged within the protection scope of the utility model.
Claims (9)
1. a kind of 30000Psi super-pressure well head safe control system, which is characterized in that including high-pressure hydraulic, superelevation kill-job
Lower safety valve hydraulic control trunk roads, low voltage control system；
The high-pressure hydraulic includes safety valve hydraulic control trunk roads on well, the input terminal of safety valve hydraulic control trunk roads on the well
It is connected with the high-pressure hydraulic, including safe flutter valve branch on safe main valve branch and well on well, safety on the well
The output end of safe flutter valve branch is respectively connected on well safe flutter valve on safe main valve and well on main valve branch and the well；
The input terminal of the super high pressure underground safety valve hydraulic control trunk roads is connected with high-pressure hydraulic, and output end is connected to well
Lower safety valve；
The low voltage control system includes fusible plug controlling brancher, safe main valve pilot control branch on well, safe flutter valve on well
Pilot control branch and storm valve pilot control branch；The input terminal and high-pressure hydraulic of the fusible plug controlling brancher
It is connected, and passes through safe main valve pilot control branch on well, safe flutter valve pilot control branch and downhole safety on well respectively
Safe main valve branch on valve pilot control branch and the well, safe flutter valve branch and super high pressure underground safety valve hydraulic control master on well
Main line is connected.
2. a kind of 30000Psi super-pressure well head safe control system according to claim 1, which is characterized in that the height
Pressing hydraulic system includes being sequentially connected in series: fuel tank, electric hydraulic pump, the first check valve, the 4th pressure gauge, the 4th pressure inverting
Device, the 4th safety valve, the first accumulator, the first pressure regulator valve.
3. a kind of 30000Psi super-pressure well head safe control system according to claim 2, which is characterized in that the height
Pressing hydraulic system further includes back-up system, and the back-up system is in parallel with electric hydraulic pump, including hand-hydraulic interconnected
Pump and second one-way valve, the input terminal of the hydraulic hand-pump are connected with the fuel tank, the output end of the second one-way valve
It is connected on the 4th pressure gauge.
4. a kind of 30000Psi super-pressure well head safe control system according to claim 1, which is characterized in that the well
Upper safety valve hydraulic control trunk roads include the second accumulator as the emergency power supply of safe flutter valve on main valve safe on well and well,
The input terminal of second accumulator is connected with the first pressure regulator valve of the high-pressure hydraulic, second accumulator it is defeated
Outlet is separately connected on the well safe flutter valve branch on safe main valve branch and well.
5. a kind of 30000Psi super-pressure well head safe control system according to claim 1, which is characterized in that the well
Upper safe main valve branch includes being sequentially connected in series: the second pilot valve, second pressure gauge, the second safety valve, second pressure transmitter,
Second quick release valve, the second accumulator phase of the input terminal of second pilot valve and safety valve hydraulic control trunk roads on the well
Connection, the output end of second quick release valve are connected to safe main valve on control target well.
6. a kind of 30000Psi super-pressure well head safe control system according to claim 1, which is characterized in that the well
Upper safe flutter valve branch includes being sequentially connected in series: the first pilot valve, first pressure gauge, the first safety valve, first pressure transmitter,
First quick release valve, the second accumulator phase of the input terminal of first pilot valve and safety valve hydraulic control trunk roads on the well
Connection, the output end of first quick release valve are connected to safe flutter valve on control target well.
7. a kind of 30000Psi super-pressure well head safe control system according to claim 1, which is characterized in that described super
High pressure storm valve hydraulic control trunk roads include being sequentially connected in series: ultrahigh-pressure intensifier, third check valve, third accumulator,
Three safety valves, third pilot valve, third pressure gauge, third pressure transmitter, the input terminal of the ultrahigh-pressure intensifier are connected to
On 4th pressure gauge of the high-pressure hydraulic, the output end of the third pressure transmitter is connected to control target underground
Safety valve；When high-pressure hydraulic pressure is increased to 5000Psi, then pressure is increased to by ultrahigh-pressure intensifier
30000psi meets the unlatching needs of control target storm valve.
8. a kind of 30000Psi super-pressure well head safe control system according to claim 1, which is characterized in that described easy
Fused plug controlling brancher includes being sequentially connected in series: the second pressure regulator valve, the 5th pressure gauge, the 5th safety valve, the 4th accumulator, inflation
The input terminal of valve, the 4th check valve, the 5th pressure transmitter, fusible plug, second pressure regulator valve is connected to the high-pressure and hydraulic
Pressure source in connecting pipeline between 4th safety valve of system and the first accumulator, as low voltage control system；Further include
Reversal valve and damping hole, the reversal valve, damping hole and charge valve, the 4th check valve form self-locking circuit；After pressing charge valve,
Fusible plug controlling brancher is by the ftercompction of self-locking circuit automatic fine, and when fire alert occurs for well head, fusible plug fusing makes
Fusible plug controlling brancher pressure release causes the shutdown of safe flutter valve on safe main valve and well on storm valve and well.
9. a kind of 30000Psi super-pressure well head safe control system according to claim 1, which is characterized in that the well
Lower safety valve pilot control branch includes third solenoid valve, third time-delay valve, third state indicator；Safe main valve on the well
Pilot control branch includes second solenoid valve, the second time-delay valve, the second positioning indicator；Safe flutter valve pilot control on the well
Branch includes the first solenoid valve；The third solenoid valve, second solenoid valve, the first solenoid valve are sequentially connected in series, respectively as underground
Safe main valve pilot control branch on safety valve pilot control branch, well, on well safe flutter valve pilot control branch starting point；
The input terminal of the third solenoid valve is connected between the 4th accumulator and charge valve of the fusible plug controlling brancher
In connecting pipeline, the outlet end of the third solenoid valve is sequentially connected third time-delay valve, third state indicator, the third shape
The output end of state indicator is connected on the guide end of the third pilot valve of the super high pressure underground safety valve hydraulic control trunk roads；
The outlet end of the second solenoid valve is sequentially connected the second time-delay valve, the second positioning indicator, second state instruction
The output end of device is connected on the well on the guide end of the second pilot valve of safe main valve branch；
The outlet end of first solenoid valve is connected on the well on the guide end of the first pilot valve of safe flutter valve branch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820728373.4U CN208203677U (en) | 2018-05-16 | 2018-05-16 | A kind of 30000Psi super-pressure well head safe control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820728373.4U CN208203677U (en) | 2018-05-16 | 2018-05-16 | A kind of 30000Psi super-pressure well head safe control system |
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| CN208203677U true CN208203677U (en) | 2018-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412820A (en) * | 2018-05-16 | 2018-08-17 | 维特力（深圳）流体工程有限公司 | A kind of 30000Psi super-pressure well head safe control system |
-
2018
- 2018-05-16 CN CN201820728373.4U patent/CN208203677U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108412820A (en) * | 2018-05-16 | 2018-08-17 | 维特力（深圳）流体工程有限公司 | A kind of 30000Psi super-pressure well head safe control system |
| CN108412820B (en) * | 2018-05-16 | 2024-03-22 | 维特力（深圳）流体工程有限公司 | 30000Psi ultra-high pressure wellhead safety control system |
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