CN210068600U - Hydraulic oil tank of oil well safety valve control cabinet - Google Patents
Hydraulic oil tank of oil well safety valve control cabinet Download PDFInfo
- Publication number
- CN210068600U CN210068600U CN201920344522.1U CN201920344522U CN210068600U CN 210068600 U CN210068600 U CN 210068600U CN 201920344522 U CN201920344522 U CN 201920344522U CN 210068600 U CN210068600 U CN 210068600U
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- China
- Prior art keywords
- hydraulic oil
- oil tank
- tank
- pressure return
- control cabinet
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- Expired - Fee Related
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- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 104
- 239000003129 oil well Substances 0.000 title claims abstract description 50
- 239000003921 oil Substances 0.000 claims abstract description 47
- 230000000241 respiratory effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 13
- 239000012535 impurity Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004200 deflagration Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000007847 structural defect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Fluid-Pressure Circuits (AREA)
Abstract
The utility model relates to an oil well relief valve switch board hydraulic tank especially is suitable for offshore oil production platform, can provide effectual guarantee for the safety in production and the marine environment protection of oil well. The hydraulic oil tank comprises an oil pump inlet valve, a high-pressure return pipeline is connected with a confluence device, hydraulic oil from the high-pressure return pipeline is filtered by a confluence filter and enters a secondary hydraulic oil tank through an electromagnetic valve, and a flame arrester and a combustible gas alarm are arranged in the secondary hydraulic oil tank; an inlet valve of the oil pump and a low-pressure return valve are arranged in a primary hydraulic oil tank, an overflow baffle is arranged between the primary hydraulic oil tank and a secondary hydraulic oil tank, and the combustible gas alarm is connected with the electromagnetic valve through a cable; and a primary oil tank outlet filter is arranged in a connecting pipe body between the oil pump inlet valve and the primary hydraulic oil tank. The utility model discloses can prolong the life cycle of valve member in the relief valve switch board, avoid in the relief valve in the pit leak, the string potential safety hazard that oil and gas were brought.
Description
Technical Field
The utility model relates to a hydraulic tank, especially an oil well relief valve control cabinet hydraulic tank that oil industry oil well relief valve control cabinet used. The safety control cabinet for the oil well safety valve can be used safely, is particularly suitable for an offshore oil production platform, and can provide effective guarantee for the safety production of an oil well and the marine environment protection.
Background
Because some offshore oil fields are in storm surge regions, the development mode adopts a simple satellite platform and submarine pipelines, the exploitation environment is severe, the investment is high, the risk is high, the oil well production accidents can be caused by the structural defects of the supporting devices for oil extraction safety control, huge economic losses on personnel and property are caused, and the subsequent results can not be estimated. Therefore, the design, selection and application of the safety control technology and the matching equipment of the oil extraction process need to ensure the safety, reliability, practicability and high efficiency of the oil well production while considering the economy and operability.
The oil well safety valve control cabinet is an execution mechanism for controlling the underground safety valve and the well head safety valve, and can automatically and rapidly close the well when accidents such as blowout, fire and the like occur in the oil well by supplying high-pressure liquid to the hydraulic control pipeline and opening the well head safety valve, the exhaust valve and the underground safety valve to realize normal production of the oil well; and the pressure of the underground safety valve can be remotely monitored by the central control room, and the pressure can be released remotely when necessary, so that the aim of closing the underground safety valve is fulfilled. Therefore, the stable operation of the oil well safety valve control cabinet is the key for ensuring the safe production of the offshore platform well group, and is important equipment for protecting oil and gas resources and preventing environmental pollution.
At present, the offshore oil field is using oil well safety valve control cabinet, which mainly comprises: four model safety valve control cabinets of United states TEST, United states VersaTech, Singapore PETRICO PTE LTD and Shenzhen Foster. In the using process of the oil well safety valve control cabinet, various problems are reported by each safety valve control cabinet. Wherein, the trouble that relief valve switch board body exists has: frequent pressing, leakage inside the valve, leakage of the pipeline pressing cap, electrical failure and the like. Externally present faults are: the internal leakage of the oil well downhole safety valve is mainly caused by impurities in hydraulic oil. The internal leakage of the underground safety valve is the most serious fault among various faults, so that the pressure of an oil well safety valve control cabinet is relieved, and a production well control system is broken down; in addition, hydraulic oil in the underground hydraulic control pipeline may enter a hydraulic oil tank of an oil well safety valve control cabinet together with oil gas, so that firstly, the hydraulic oil in the oil tank is polluted, and impurities in the hydraulic oil can damage the seal of a hydraulic valve; moreover, the oil well safety valve control cabinet is a relatively sealed cabinet body, and because of the design reason of the hydraulic oil tank of the safety valve control cabinet in use, oil gas entering the cabinet cannot be released out, and the oil gas is accumulated in the cabinet to cause deflagration hidden danger. The hydraulic oil tank in the existing oil well safety valve control cabinet is simple in structure and single in function, only has one oil pump inlet valve and a high-pressure backflow pipeline interface, can only play a storage role for the circulation of hydraulic oil, and does not have the functions of impurity filtering, combustible gas detection and discharge.
In order to eliminate the potential safety hazard in the oil well safety valve control cabinet, the hydraulic oil tank used at present needs to be improved, so that the oil well safety valve control cabinet can safely and stably operate, and the safe production of an oil well is ensured.
Disclosure of Invention
The utility model aims at current technical problem, provide an oil well safety valve switch board hydraulic tank, solve valve member in the safety valve switch board and influence sealing performance and cluster oil and go here and there the detonation risk that brings in the gas to the hydraulic oil case because of impurity in the hydraulic oil. The potential safety hazard of the safety valve control cabinet is eliminated, the production safety of the oil well is ensured, and the maintenance cost and the production cost are reduced.
The technical solution of the utility model is that: a hydraulic oil tank of an oil well safety valve control cabinet comprises an oil pump inlet valve, a high-pressure return pipeline is connected with a confluence filter, hydraulic oil from the high-pressure return pipeline is filtered by the confluence filter and then enters a secondary hydraulic oil tank through an electromagnetic valve, and a flame arrester and a combustible gas alarm are arranged in the secondary hydraulic oil tank; an inlet valve of the oil pump and a low-pressure return valve are arranged in a primary hydraulic oil tank, an overflow baffle is arranged between the primary hydraulic oil tank and a secondary hydraulic oil tank, and the combustible gas alarm is connected with the electromagnetic valve through a cable; and a primary oil tank outlet filter is arranged in a connecting pipe body between the oil pump inlet valve and the primary hydraulic oil tank.
Compared with the prior art the utility model discloses following profitable effect has: the utility model discloses an oil pump inlet valve and hydraulic pressure oil pump connection, the hydraulic oil of liquid accuse pipeline internal reflux in the pit passes through the high-pressure return circuit in the oil well relief valve switch board and during high-pressure backflow pipeline gets into the ware that converges, the low pressure return valve in the one-level hydraulic oil case is connected with the low pressure return circuit in the oil well relief valve switch board. The filtered and precipitated hydraulic oil flows into the hydraulic oil pump through the primary oil tank outlet filter and the oil pump inlet valve and is pumped into the underground hydraulic control pipeline through the hydraulic oil pump for circulation, so that cleanness and no impurities of the hydraulic oil are guaranteed. The problem of valve member in the current relief valve switch board influence sealing performance and the string oil is stricken the unsafe factor that brings in the hydraulic oil case because of impurity in the hydraulic oil, guaranteed relief valve switch board's safety in utilization. And simultaneously, the utility model discloses still have characteristics such as simple structure, flexible operation, convenient to use safety. The low-pressure backflow pipeline observation window is designed, the hydraulic control pipeline with internal leakage faults can be rapidly judged, the maintenance efficiency of the safety valve control cabinet is improved, and the labor intensity of workers is reduced. The utility model discloses can prolong the life cycle of valve member in the relief valve switch board, avoid in the relief valve in the pit hourglass, the string potential safety hazard that oil and gas were brought, guarantee the safety in production of oil well, have the result of use and the using value that are showing.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The following detailed description of the present invention, taken in conjunction with the accompanying drawings, is not intended to limit the scope of the invention. It is only following do the preferred embodiment of the utility model, other applications the utility model discloses an equivalent change all should belong to the utility model discloses a protection scope.
Referring to fig. 1, a hydraulic oil tank of an oil well safety valve control cabinet comprises an oil pump inlet valve 8, a high-pressure return pipeline 15 is connected with a confluence device 1, hydraulic oil from the high-pressure return pipeline 15 is filtered by a confluence filter 2 and then enters a secondary hydraulic oil tank 3 through an electromagnetic valve 13, and a flame arrester 17 and a combustible gas alarm 12 are installed in the secondary hydraulic oil tank 3; an oil pump inlet valve 8 and a low-pressure return valve 10 are arranged in the primary hydraulic oil tank 5, an overflow baffle is arranged between the primary hydraulic oil tank 5 and the secondary hydraulic oil tank 3, and a combustible gas alarm 12 is connected with an electromagnetic valve 13 through a cable; and a primary oil tank outlet filter 7 is arranged in a connecting pipe body between the oil pump inlet valve 8 and the primary hydraulic oil tank 5.
The overflow baffle and the primary oil tank outlet filter 7 among the confluence filter 2, the secondary hydraulic oil tank 3 and the primary hydraulic oil tank 5 ensure that the hydraulic oil in the hydraulic oil tank and the hydraulic oil flowing into the underground hydraulic control pipeline are clean.
The combustible gas alarm 12 is arranged on one side of a box cover at the upper end of the secondary hydraulic oil tank 3, and a detection port of the combustible gas alarm 12 is inserted into the secondary hydraulic oil tank 3; the spark arrester 17 is connected at the upper end of outer respiratory tube 16 and is fixed in the outside of oil well safety valve switch board through outer respiratory tube 16, and the lower part of respiratory tube 16 passes through the nut to be fixed in the opposite side of second grade hydraulic tank 3 upper end case lid, and the body lower extreme and the second grade hydraulic tank 3 intercommunication of outer respiratory tube 16.
The confluence device 1 is an П type box body, the lower ends of two sides of the confluence device are welded or fixed on a box cover at the upper end of the secondary hydraulic oil tank 3, the inlet and the outlet of the electromagnetic valve 13 are communicated with a П type box body and the box body of the secondary hydraulic oil tank 3, and the confluence filter 2 is arranged in the confluence device 1 between the high-pressure return pipeline 15 and the electromagnetic valve 13.
The confluence filter 2 is a frame net with a handle on one side, the mesh of a filter screen is arranged between 500 meshes and 800 meshes, the frame net is placed in a mounting step in the confluence device 1, the handle is fixed in a fixing plate at the outer end part of the frame net, and a sealing ring is arranged between the fixing plate and a box plate of the confluence device 1 and is fixed through screws.
The oil pump inlet valve 8 and the low-pressure return valve 10 are both fixed in a front side box plate of the primary hydraulic oil tank 5, an emptying valve 9 is further mounted at the lower part of the front side box plate, a dirt cleaning port 6 is arranged in a side box plate of the primary hydraulic oil tank 5, and a primary oil filling port 4 is arranged in an upper box plate.
An overflow space is reserved at one end of the flame arrester 7 on the box plate between the primary hydraulic oil tank 5 and the secondary hydraulic oil tank 3, an overflow baffle is blocked at the end part of the box plate and positioned beside the overflow space, hydraulic oil from the secondary hydraulic oil tank 3 flows into the primary hydraulic oil tank 5 from the upper surface of the overflow baffle after being precipitated, and the height of the overflow baffle is set to be between 5cm and 13 cm; and a sealing ring is arranged between the plate body of the dirt cleaning port 6 and the side box plate of the primary hydraulic oil tank 5 and is fixed through screws.
A low-pressure return line observation window 11 is further arranged in the connecting pipe body between the low-pressure return valve 10 and the primary hydraulic oil tank 5, the low-pressure return line observation window 11 is a transparent pipe section fixed in the connecting pipe body, and if a hydraulic control valve in the oil well safety valve control cabinet is lost, the position of the hydraulic control valve connected with the low-pressure return valve 10 can be conveniently observed through flow.
The high-pressure return pipelines 15 are connected with the confluence device 1 through pipeline pressure caps 14, and the number of the high-pressure return pipelines 15 is more than two; the low-pressure return valves 10 are arranged at more than two positions.
The high-pressure return pipeline 15 is connected with a high-pressure loop in the oil well safety valve control cabinet, the low-pressure return valve 10 is connected with a low-pressure loop in the oil well safety valve control cabinet, and the oil pump inlet valve 8 is connected with a hydraulic oil pump.
The hydraulic oil that flows back in the hydraulic control pipeline in the pit flows into converging device 1 through high-pressure return line 15, and high-pressure return line 15 is connected through pipeline pressure cap 14 with converging device 1, and the hydraulic oil that flows back in the pit passes through converging filter 2 in converging device 1 and filters the back and gets into in second grade hydraulic tank 3 through solenoid valve 13, has played the effect of one-level filtration. In the detection mouth of combustible gas alarm 12 inserted second grade hydraulic tank 3, combustible gas alarm 12 and solenoid valve 13 had realized automatic control through cable junction, detected combustible gas when combustible gas alarm 12, closed solenoid valve 13 automatically, and the cabinet body outside of the outer respiratory tube 16 of a small amount of gaseous accessible and spark arrester 17 release oil well safety valve switch board in the second grade hydraulic tank 3. A sealing ring is arranged between the dirt cleaning port 6 and the primary hydraulic oil tank 5 and is fixed and sealed through screws, and when oil in the primary hydraulic oil tank 5 deteriorates and scales need to be cleaned, the dirt cleaning port 6 is opened for cleaning.
When the oil well safety valve control cabinet works normally, hydraulic oil enters the oil pump inlet valve 8 after being filtered by the primary oil tank outlet filter 7 and is pumped into the underground hydraulic control pipeline through the hydraulic oil pump. And the emptying valve 9 is connected with the primary hydraulic oil tank 5 and is used for emptying when hydraulic oil is replaced. The low-pressure return valve 10 and the low-pressure return pipeline observation window 11 are connected to the first-stage hydraulic oil tank 5, when a hydraulic control valve in the oil well safety valve control cabinet leaks, the flow change of the low-pressure return pipeline observation window 11 flowing into the first-stage hydraulic oil tank 5 can be observed to judge which hydraulic control pipeline has a fault, and the problem can be solved conveniently and timely.
The embodiments described above are merely exemplary embodiments, but the present invention is not limited to these embodiments, and those skilled in the art can make modifications without departing from the spirit and teaching of the present invention. Many variations, combinations, and modifications of the aspects disclosed herein are possible and are within the scope of the invention, which is, therefore, not to be limited by the above description.
Claims (9)
1. A hydraulic oil tank of an oil well safety valve control cabinet comprises an oil pump inlet valve and is characterized in that a high-pressure return pipeline is connected with a confluence filter, hydraulic oil from the high-pressure return pipeline is filtered by the confluence filter and then enters a secondary hydraulic oil tank through an electromagnetic valve, and a flame arrester and a combustible gas alarm are arranged in the secondary hydraulic oil tank; an inlet valve of the oil pump and a low-pressure return valve are arranged in a primary hydraulic oil tank, an overflow baffle is arranged between the primary hydraulic oil tank and a secondary hydraulic oil tank, and the combustible gas alarm is connected with the electromagnetic valve through a cable; and a primary oil tank outlet filter is arranged in a connecting pipe body between the oil pump inlet valve and the primary hydraulic oil tank.
2. The oil well safety valve control cabinet hydraulic oil tank of claim 1, wherein the combustible gas alarm is installed on one side of a tank cover at the upper end of the secondary hydraulic oil tank, and a detection port of the combustible gas alarm is inserted into the secondary hydraulic oil tank; the flame arrester is connected in the upper end of outer respiratory tube and fixes the outside at oil well relief valve switch board through outer respiratory tube, and the opposite side at second grade hydraulic tank upper end case lid is fixed through the nut in the lower part of respiratory tube, and the body lower extreme and the second grade hydraulic tank intercommunication of outer respiratory tube.
3. The oil well safety valve control cabinet hydraulic oil tank of claim 2, wherein the confluence device is an П type tank body, the lower ends of both sides are welded or fixed on the upper end tank cover of the secondary hydraulic oil tank, the inlet and outlet of the electromagnetic valve are communicated with the П type tank body and the secondary hydraulic oil tank body, and the confluence filter is installed in the confluence device between the high-pressure return line and the electromagnetic valve.
4. The oil well safety valve control cabinet hydraulic oil tank as claimed in claim 1 or 3, characterized in that the confluence filter is a frame net with a handle on one side, the mesh of the filter net is set between 500 mesh and 800 mesh, the frame net is placed in a mounting step in the confluence device, the handle is fixed in a fixing plate at the outer end of the frame net, a sealing ring is arranged between the fixing plate and the tank plate of the confluence device and is fixed through screws.
5. An oil well safety valve control cabinet hydraulic oil tank as defined in claim 1, wherein said oil pump inlet valve and said low pressure return valve are fixed in a front side tank plate of said primary hydraulic oil tank, a blow-down valve is further installed in a lower portion of said front side tank plate, a dirt removing port is provided in a side tank plate of said primary hydraulic oil tank, and a primary oil filling port is provided in an upper tank plate.
6. The oil well safety valve control cabinet hydraulic oil tank of claim 5, wherein a flow passing space is left at one end of the flame arrester on the tank plate between the primary hydraulic oil tank and the secondary hydraulic oil tank, an overflow baffle is blocked at the end of the tank plate and positioned beside the flow passing space, hydraulic oil from the secondary hydraulic oil tank flows into the primary hydraulic oil tank from the upper surface of the overflow baffle after being precipitated, and the height of the overflow baffle is set to be between 5cm and 13 cm; and a sealing ring is arranged between the plate body of the dirt cleaning port and the side box plate of the primary hydraulic oil tank and is fixed through screws.
7. The oil well safety valve control cabinet hydraulic oil tank of claim 5, wherein a low pressure return line observation window is further provided in the connecting pipe body between the low pressure return valve and the primary hydraulic oil tank, and the low pressure return line observation window is a transparent pipe section fixed in the connecting pipe body.
8. The oil well safety valve control cabinet hydraulic oil tank as claimed in claim 1, wherein the high-pressure return pipeline is connected with the flow combiner through a pipeline pressing cap, and the number of the high-pressure return pipelines is more than two; the low-pressure return valves are arranged at more than two positions.
9. The oil well safety valve control cabinet hydraulic oil tank of claim 1 or 8, characterized in that the high pressure return line is connected with a high pressure loop in the oil well safety valve control cabinet, the low pressure return valve is connected with a low pressure loop in the oil well safety valve control cabinet, and the oil pump inlet valve is connected with a hydraulic oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920344522.1U CN210068600U (en) | 2019-03-19 | 2019-03-19 | Hydraulic oil tank of oil well safety valve control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920344522.1U CN210068600U (en) | 2019-03-19 | 2019-03-19 | Hydraulic oil tank of oil well safety valve control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210068600U true CN210068600U (en) | 2020-02-14 |
Family
ID=69433713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920344522.1U Expired - Fee Related CN210068600U (en) | 2019-03-19 | 2019-03-19 | Hydraulic oil tank of oil well safety valve control cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210068600U (en) |
-
2019
- 2019-03-19 CN CN201920344522.1U patent/CN210068600U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200214 |