CN210567546U - Automatic pressure relief system and automatic pressure relief device for jumper pipe of offshore oil field - Google Patents
Automatic pressure relief system and automatic pressure relief device for jumper pipe of offshore oil field Download PDFInfo
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- CN210567546U CN210567546U CN201921073386.3U CN201921073386U CN210567546U CN 210567546 U CN210567546 U CN 210567546U CN 201921073386 U CN201921073386 U CN 201921073386U CN 210567546 U CN210567546 U CN 210567546U
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Abstract
An automatic pressure relief system and an automatic pressure relief device for a jumper pipe of an offshore oilfield are arranged on an underwater Christmas tree connected with the jumper pipe, and an energy accumulator is used for containing pressure relief oil from the jumper pipe; the underwater control module of the underwater Christmas tree is used for realizing the communication control of the automatic pressure relief device and the sea surface platform control system and providing electric support and hydraulic power support for the automatic pressure relief device; the automatic pressure relief device is connected with the underwater control module through a cable and a hydraulic control pipeline respectively, an oil inlet of the automatic pressure relief device is connected with an oil outlet pipeline of the underwater Christmas tree through a pipeline, an oil outlet of the automatic pressure relief device is connected with the energy accumulator through a steel pipe, and the automatic pressure relief device is used for automatically relieving the pressure of crude oil in the cross-over pipe according to the indication of the sea surface platform control system and collecting the crude oil to the inside of the energy accumulator. The utility model discloses can effectively reduce the jam that the inside hydrate of ocean oil field jumper pipe formed, guarantee the production safety of ocean oil field underwater production facility, can show reduction in operation cost simultaneously.
Description
Technical Field
The utility model relates to an automatic pressure relief system of ocean oil field jumper pipe and automatic pressure relief device.
Background
After the temporary well closing operation is performed on the offshore oil field, if the well is not opened again within a period of time, because the temperature of the seabed environment is low, the heat of crude oil in the jumper pipe at the downstream of the oil outlet of the underwater Christmas tree is dissipated, so that the temperature is reduced, and the crude oil is gradually condensed to form hydrate. And when the temperature of the crude oil is constant, if the pressure exceeds a critical value, the hydrate begins to be separated out. Therefore, the formation of crude oil hydrates can be inhibited by means of pressure relief. At present, after the offshore oil field is shut down, methanol is generally injected into the downstream of a Christmas tree from a chemical injection module of a sea surface operation platform so as to inhibit the formation of crude oil hydrates in downstream pipelines such as jumper pipes, manifolds and other facilities. However, the method needs to pump methanol from the sea surface to the seabed through an umbilical cable which is several kilometers long, a large amount of methanol is consumed in the operation process, and the cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model provides an automatic pressure relief system of ocean oil field jumper pipe and automatic pressure relief device can effectively reduce the jam that the inside hydrate of ocean oil field jumper pipe formed, and the production safety of guarantee ocean oil field underwater production facility can show reduction in operation cost simultaneously.
In order to achieve the above object, the utility model provides an automatic pressure relief system of ocean oil field jumper pipe, automatic pressure relief system set up on the oil recovery tree under water with the jumper connection, contain:
an accumulator for containing the pressure relief oil from the jumper;
the underwater control module of the underwater Christmas tree is used for realizing the communication control of the automatic pressure relief device and the sea surface platform control system and providing electric support and hydraulic power support for the automatic pressure relief device;
and the automatic pressure relief device is connected with the underwater control module through a cable and a hydraulic control pipeline respectively, an oil inlet of the automatic pressure relief device is connected with an oil outlet pipeline of the underwater Christmas tree through a pipeline, and an oil outlet of the automatic pressure relief device is connected with the energy accumulator through a steel pipe and used for automatically relieving the pressure of the crude oil in the cross-over pipe according to the indication of the sea surface platform control system and collecting the crude oil into the energy accumulator.
The energy accumulator comprises an external container and an internal cavity, the bottom of the external container is communicated with seawater, the internal cavity is a leather bag or a piston cabin, the piston cabin comprises a piston, and the internal cavity is divided into an upper cabin and a lower cabin by the piston.
The automatic pressure relief device comprises:
one end of the hydraulic needle valve is connected with an oil inlet of the automatic pressure relief device, and the other end of the hydraulic needle valve is connected with an oil outlet of the automatic pressure relief device and used for opening or closing a crude oil conveying pipeline of the automatic pressure relief device;
the two-position three-way electromagnetic valve is connected with a hydraulic actuator of the hydraulic needle valve, is connected with the underwater control module through a hydraulic control pipeline, and is used for controlling the on-off of hydraulic oil supplied to the hydraulic needle valve by the underwater control module;
the needle valve control module is connected with the two-position three-way electromagnetic valve through a wire and used for controlling the on-off of the two-position three-way electromagnetic valve;
the pressure transmitter is arranged on a crude oil conveying pipeline of the automatic pressure relief device and used for monitoring the crude oil pressure in the cross-over pipe in real time;
the pressure monitoring module is connected with the pressure transmitter through a wire and used for collecting a pressure signal of the pressure transmitter;
and the communication module is connected with the pressure monitoring module and the needle valve control module through wires, and is used for converting the pressure signal sent by the pressure monitoring module into a communication signal which can be identified by a communication protocol of the underwater control module and sending the communication signal to the underwater control module and sending a control signal of the sea surface platform control system transmitted by the underwater control module to the needle valve control module.
The automatic pressure relief device further comprises: and the power supply module is connected with the underwater control module through a cable and is used for adapting a power supply provided by the underwater control module to the working voltage of each module in the automatic pressure relief device.
The utility model also provides an automatic pressure relief device of ocean oil field jumper pipe, automatic pressure relief device set up on the christmas tree under water with the jumper connection, it is respectively through cable and hydraulic control pipeline connection underwater control module, the oil-out pipeline of christmas tree under water is passed through the tube coupling to this automatic pressure relief device's oil inlet, this automatic pressure relief device's oil-out passes through the steel pipe and connects the energy storage ware for according to sea platform control system's instruction with the inside automatic pressure release of crude oil of jumper pipe and collect to the energy storage ware inside.
The automatic pressure relief device for the jumper pipe of the offshore oilfield comprises:
one end of the hydraulic needle valve is connected with an oil inlet of the automatic pressure relief device, and the other end of the hydraulic needle valve is connected with an oil outlet of the automatic pressure relief device and used for opening or closing a crude oil conveying pipeline of the automatic pressure relief device;
the two-position three-way electromagnetic valve is connected with a hydraulic actuator of the hydraulic needle valve, is connected with the underwater control module through a hydraulic control pipeline, and is used for controlling the on-off of hydraulic oil supplied to the hydraulic needle valve by the underwater control module;
the needle valve control module is connected with the two-position three-way electromagnetic valve through a wire and used for controlling the on-off of the two-position three-way electromagnetic valve;
the pressure transmitter is arranged on a crude oil conveying pipeline of the automatic pressure relief device and used for monitoring the crude oil pressure in the cross-over pipe in real time;
the pressure monitoring module is connected with the pressure transmitter through a wire and used for collecting a pressure signal of the pressure transmitter;
and the communication module is connected with the pressure monitoring module and the needle valve control module through wires, and is used for converting the pressure signal sent by the pressure monitoring module into a communication signal which can be identified by a communication protocol of the underwater control module and sending the communication signal to the underwater control module and sending a control signal of the sea surface platform control system transmitted by the underwater control module to the needle valve control module.
The automatic pressure relief device further comprises: and the power supply module is connected with the underwater control module through a cable and is used for adapting a power supply provided by the underwater control module to the working voltage of each module in the automatic pressure relief device.
The utility model discloses utilize crude oil at a temperature regularly, if pressure is less than the principle that the critical value then can restrain hydrate formation, realize automatic pressure release to the jumper pipe in the interim well shut-in period of ocean oil field, and collect crude oil to solitary energy storage ware in, can effectively reduce the jam that the inside hydrate of ocean oil field jumper formed, guarantee ocean oil field underwater production facility's production safety, avoid simultaneously from sea platform to the long-range methyl alcohol that pours into of underwater production facility, can show reduction operating cost.
Drawings
Fig. 1 is the utility model provides a schematic diagram of an automatic pressure relief system of marine oil field jumper pipe.
Fig. 2 is a schematic structural view of an automatic pressure relief device provided by the present invention.
Detailed Description
The preferred embodiment of the present invention will be described in detail below with reference to fig. 1 and 2.
As shown in fig. 1, the utility model provides an automatic pressure relief system of ocean oil field jumper, it sets up on christmas tree 11 under water, and subsea jumper 13 connects christmas tree 11 under water and subsea manifold 12.
The automatic pressure relief system of the jumper pipe in the offshore oil field comprises:
an accumulator 21 for containing the pressure relief oil from the jumper tube 13;
the underwater control module 22 of the underwater Christmas tree 11 is used for realizing communication control between the automatic pressure relief device 23 and a sea surface platform control system and providing electric support and hydraulic power support for the automatic pressure relief device 23;
and the automatic pressure relief device 23 is respectively connected with the underwater control module 22 through a cable 33 and a hydraulic control pipeline 32, an oil inlet of the automatic pressure relief device 23 is connected with an oil outlet pipeline of the underwater Christmas tree 11 through a pipeline, an oil outlet of the automatic pressure relief device 23 is connected with the energy accumulator 21 through a steel pipe 31, and the automatic pressure relief device is used for automatically relieving the pressure of the crude oil in the jumper pipe 13 according to the indication of a sea platform control system and collecting the crude oil in the energy accumulator 21.
The accumulator 21 can be mounted on the external frame of the subsea tree 11 and can be retrieved separately to the surface for replacement. The energy accumulator 21 is a steel container outside and a bladder or an upper and lower chamber separated by a piston inside. The bottom of the energy accumulator 21 is communicated with seawater and is provided with a filter screen cover to prevent seawater impurities from entering. After the high-pressure crude oil in the jumper 13 is decompressed, the high-pressure crude oil is conveyed to a leather bag in the energy accumulator 21 or a cabin on the upper part of a piston, and the seawater on the bottom is gradually discharged until the leather bag or the cabin on the upper part is filled with the crude oil.
The oil inlet of the automatic pressure relief device 23 is connected with the oil outlet pipeline of the underwater Christmas tree 11 through a pipeline, and the oil outlet pipeline of the underwater Christmas tree 11 refers to the downstream pipeline of the production main valve 24 and the production wing valve 25.
As shown in fig. 2, the automatic pressure relief device 23 is disposed on the subsea tree 11, and further includes:
one end of the hydraulic needle valve 56 is connected with an oil inlet of the automatic pressure relief device 23, and the other end of the hydraulic needle valve is connected with an oil outlet of the automatic pressure relief device 23 and is used for opening or closing a crude oil conveying pipeline of the automatic pressure relief device 23;
the two-position three-way electromagnetic valve 57 is connected with the hydraulic actuator of the hydraulic needle valve 56, is connected with the underwater control module 22 through the hydraulic control pipeline 32, and is used for controlling the on-off of hydraulic oil supplied to the hydraulic needle valve 56 by the underwater control module 22;
the needle valve control module 52 is connected with the two-position three-way electromagnetic valve 57 through a wire and is used for controlling the on-off of the two-position three-way electromagnetic valve 57;
the pressure transmitter 55 is arranged on a crude oil conveying pipeline of the automatic pressure relief device 23 and is used for monitoring the crude oil pressure in the jumper pipe before, during and after pressure relief in real time;
the pressure monitoring module 54 is connected with the pressure transmitter 55 through a wire and used for collecting a pressure signal of the pressure transmitter 55;
the communication module 53 is connected with the pressure monitoring module 54 and the needle valve control module 52 through wires, and is used for converting the pressure signal sent by the pressure monitoring module 54 into a communication signal which can be identified by the communication protocol of the underwater control module 22 and sending the communication signal to the underwater control module 22, and sending a control signal of a sea surface platform control system transmitted by the underwater control module 22 to the needle valve control module 52;
and the power supply module 51 is connected with the underwater control module 22 through a cable 33 and is used for adapting the power supply provided by the underwater control module 22 to the working voltage of each module in the automatic pressure relief device.
The working principle of the utility model is as follows:
after the offshore oil field is shut down, an operator sends an opening control signal on the sea platform control system, the underwater control module 22 transmits the opening control signal to the needle valve control module 52, the needle valve control module 52 controls the two-position three-way electromagnetic valve 57 to be electrified and work, the inside of the two-position three-way electromagnetic valve is reversed, hydraulic oil is transmitted to a hydraulic actuator of the hydraulic needle valve 56 from the underwater control module 22 through the hydraulic control pipeline 32, the hydraulic needle valve 56 is accordingly opened, the crude oil transmission pipeline is opened, crude oil inside the jumper pipe 13 is automatically decompressed, and the crude oil in the jumper pipe 13 is transmitted to the energy accumulator 21 through the steel pipe 31.
The pressure transmitter 55 monitors the crude oil pressure in the jumper pipe in real time, the pressure monitoring module 54 sends a pressure signal to the subsea control module 22 through the communication module 53, the subsea control module 22 transmits the pressure signal to the sea surface platform control system through the seabed umbilical cable, if the sea surface platform control system judges that the crude oil pressure relief operation in the jumper pipe 13 is completed according to the pressure signal, the sea surface platform control system sends a stop control signal to the subsea control module 22, the subsea control module 22 transmits the stop control signal to the needle valve control module 52, the needle valve control module 52 controls the two-position three-way electromagnetic valve 57 to be powered off, the spring in the electromagnetic valve automatically resets, the hydraulic actuator of the hydraulic needle valve 56 is stopped to convey hydraulic oil, the hydraulic needle valve 56 is closed, the crude oil conveying pipeline is closed, and the crude oil conveying in the.
The utility model discloses utilize crude oil at a temperature regularly, if pressure is less than the principle that the critical value then can restrain hydrate formation, realize automatic pressure release to the jumper pipe in the interim well shut-in period of ocean oil field, and collect crude oil to solitary energy storage ware in, can effectively reduce the jam that the inside hydrate of ocean oil field jumper formed, guarantee ocean oil field underwater production facility's production safety, avoid simultaneously from sea platform to the long-range methyl alcohol that pours into of underwater production facility, can show reduction operating cost.
While the present invention has been described in detail with reference to the preferred embodiments thereof, it should be understood that the above description should not be taken as limiting the present invention. Numerous modifications and alterations to the present invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be limited only by the attached claims.
Claims (7)
1. An automatic pressure relief system for a jumper in an offshore oilfield, the automatic pressure relief system being arranged on an underwater Christmas tree (11) connected to the jumper (13), comprising:
an accumulator (21) for containing relief oil from the jumper (13);
the underwater control module (22) of the underwater Christmas tree (11) is used for realizing communication control between the automatic pressure relief device (23) and a sea surface platform control system and providing electric support and hydraulic power support for the automatic pressure relief device (23);
the automatic pressure relief device (23) is connected with the underwater control module (22) through a cable (33) and a hydraulic control pipeline (32), an oil inlet of the automatic pressure relief device (23) is connected with an oil outlet pipeline of the underwater Christmas tree (11) through a pipeline, an oil outlet of the automatic pressure relief device (23) is connected with the energy accumulator (21) through a steel pipe (31) and used for automatically relieving the pressure of crude oil in the jumper pipe (13) according to the indication of the sea surface platform control system and collecting the crude oil in the jumper pipe (13) into the energy accumulator (21).
2. The automatic pressure relief system for a jumper at an offshore oilfield according to claim 1, wherein the accumulator (21) comprises an outer container and an inner cavity, the bottom of the outer container is communicated with seawater, the inner cavity is a bladder or a piston chamber, the piston chamber comprises a piston, and the piston divides the inner cavity into an upper chamber and a lower chamber.
3. The marine oilfield jumper automatic pressure relief system according to claim 1, wherein the automatic pressure relief device (23) comprises:
one end of the hydraulic needle valve (56) is connected with an oil inlet of the automatic pressure relief device (23), and the other end of the hydraulic needle valve is connected with an oil outlet of the automatic pressure relief device (23) and used for opening or closing a crude oil conveying pipeline of the automatic pressure relief device (23);
the two-position three-way electromagnetic valve (57) is connected with a hydraulic actuator of the hydraulic needle valve (56), is connected with the underwater control module (22) through a hydraulic control pipeline (32), and is used for controlling the on-off of hydraulic oil supplied to the hydraulic needle valve (56) by the underwater control module (22);
the needle valve control module (52) is connected with the two-position three-way electromagnetic valve (57) through a wire and is used for controlling the on-off of the two-position three-way electromagnetic valve (57);
the pressure transmitter (55) is arranged on a crude oil conveying pipeline of the automatic pressure relief device (23) and is used for monitoring the crude oil pressure in the cross-over pipe in real time;
the pressure monitoring module (54) is connected with the pressure transmitter (55) through a wire and used for collecting a pressure signal of the pressure transmitter (55);
and the communication module (53) is connected with the pressure monitoring module (54) and the needle valve control module (52) through wires, and is used for converting the pressure signal sent by the pressure monitoring module (54) into a communication signal which can be identified by a communication protocol of the underwater control module (22) and sending the communication signal to the underwater control module (22) and sending a control signal of a sea surface platform control system transmitted by the underwater control module (22) to the needle valve control module (52).
4. The marine oilfield jumper automatic pressure relief system according to claim 3, wherein the automatic pressure relief device (23) further comprises: and the power supply module (51) is connected with the underwater control module (22) through a cable (33) and is used for adapting the power supply provided by the underwater control module (22) to the working voltage of each module in the automatic pressure relief device.
5. The automatic pressure relief device for the jumper pipe of the offshore oil field is characterized in that the automatic pressure relief device is arranged on an underwater Christmas tree (11) connected with the jumper pipe (13), the automatic pressure relief device is connected with an underwater control module (22) through a cable (33) and a hydraulic control pipeline (32) respectively, an oil inlet of the automatic pressure relief device (23) is connected with an oil outlet pipeline of the underwater Christmas tree (11) through a pipeline, an oil outlet of the automatic pressure relief device (23) is connected with an energy accumulator (21) through a steel pipe (31), and the automatic pressure relief device is used for automatically relieving and collecting crude oil inside the jumper pipe (13) into the energy accumulator (21) according to the indication of a sea surface platform control system.
6. The automatic pressure relief device for a marine oilfield jumper of claim 5, comprising:
one end of the hydraulic needle valve (56) is connected with an oil inlet of the automatic pressure relief device (23), and the other end of the hydraulic needle valve is connected with an oil outlet of the automatic pressure relief device (23) and used for opening or closing a crude oil conveying pipeline of the automatic pressure relief device (23);
the two-position three-way electromagnetic valve (57) is connected with a hydraulic actuator of the hydraulic needle valve (56), is connected with the underwater control module (22) through a hydraulic control pipeline (32), and is used for controlling the on-off of hydraulic oil supplied to the hydraulic needle valve (56) by the underwater control module (22);
the needle valve control module (52) is connected with the two-position three-way electromagnetic valve (57) through a wire and is used for controlling the on-off of the two-position three-way electromagnetic valve (57);
the pressure transmitter (55) is arranged on a crude oil conveying pipeline of the automatic pressure relief device (23) and is used for monitoring the crude oil pressure in the cross-over pipe in real time;
the pressure monitoring module (54) is connected with the pressure transmitter (55) through a wire and used for collecting a pressure signal of the pressure transmitter (55);
and the communication module (53) is connected with the pressure monitoring module (54) and the needle valve control module (52) through wires, and is used for converting the pressure signal sent by the pressure monitoring module (54) into a communication signal which can be identified by a communication protocol of the underwater control module (22) and sending the communication signal to the underwater control module (22) and sending a control signal of a sea surface platform control system transmitted by the underwater control module (22) to the needle valve control module (52).
7. The marine oilfield jumper automatic pressure relief device according to claim 6, wherein the automatic pressure relief device (23) further comprises: and the power supply module (51) is connected with the underwater control module (22) through a cable (33) and is used for adapting the power supply provided by the underwater control module (22) to the working voltage of each module in the automatic pressure relief device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921073386.3U CN210567546U (en) | 2019-07-10 | 2019-07-10 | Automatic pressure relief system and automatic pressure relief device for jumper pipe of offshore oil field |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921073386.3U CN210567546U (en) | 2019-07-10 | 2019-07-10 | Automatic pressure relief system and automatic pressure relief device for jumper pipe of offshore oil field |
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| CN210567546U true CN210567546U (en) | 2020-05-19 |
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| CN201921073386.3U Active CN210567546U (en) | 2019-07-10 | 2019-07-10 | Automatic pressure relief system and automatic pressure relief device for jumper pipe of offshore oil field |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260161A (en) * | 2019-07-10 | 2019-09-20 | 美钻深海能源科技研发（上海）有限公司 | A kind of marine oil field jumper pipe releasing pressure automatically system and automatic decompression device |
-
2019
- 2019-07-10 CN CN201921073386.3U patent/CN210567546U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110260161A (en) * | 2019-07-10 | 2019-09-20 | 美钻深海能源科技研发（上海）有限公司 | A kind of marine oil field jumper pipe releasing pressure automatically system and automatic decompression device |
| CN110260161B (en) * | 2019-07-10 | 2024-01-26 | 美钻深海能源科技研发（上海）有限公司 | Automatic pressure relief system and automatic pressure relief device for marine oil field jumper |
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