CN204220571U - A kind of hydrate administers sledge - Google Patents
A kind of hydrate administers sledge Download PDFInfo
- Publication number
- CN204220571U CN204220571U CN201420565704.9U CN201420565704U CN204220571U CN 204220571 U CN204220571 U CN 204220571U CN 201420565704 U CN201420565704 U CN 201420565704U CN 204220571 U CN204220571 U CN 204220571U
- Authority
- CN
- China
- Prior art keywords
- hydrate
- sledge
- gas
- valve
- administers
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model discloses a kind of hydrate and administer sledge.It comprises gas-liquid recycling can and 2 snap joints; Snap joint is used for being connected with Hydrate Plugging section two ends in the pipe-line treating de-plugging; Gas-liquid recycling can is connected with 2 snap joints respectively, and this pipeline be connected is provided with valve; Also be connected by a pipeline between 2 snap joints, and the pipeline of this connection is provided with valve.The utility model hydrate is administered sledge tool and is had the following advantages: (1) is high pressure resistant, is applicable to the blocking of administering and causing owing to generating solid water compound in land or offshore oil and gas conveyance conduit.(2) be connected with interface reserved in pipe-line by two snap joints, access is simple fast; Adopt flexible pipe to connect between two snap joints, make the setting of access point more flexible.(3) method being pre-charged with inert gas in gas-liquid recycling can be used for the speed controlling pressure release in pipe-line, to avoid forming Hydrate Plugging during de-plugging in improvement sledge.
Description
Technical field
The utility model relates to a kind of hydrate and administers sledge, belongs to production of hydrocarbons technical field.
Background technology
Along with the continuous increase of offshore oil and gas field Exploitation Depth, the laying degree of depth of submerged pipeline and length also constantly increase.The severe natural environment of deep water not only proposes harsh requirement to deepwater floating platform, subsea production system, operation on the sea etc., also give and run and be operated between each satellite well of connection, marginal oil field and central processing system, bring acid test from the submerged pipeline of several kilometers, tens kilometers and even several hundred kilometers there.Data from Oil Field shows: due to the cold environmental conditions of deep water, very easily solid hydrate is generated in deep water hydrocarbon multiphase pipeline, cause the blocking of conveyance conduit, serious threat is to the safe operation of subsea production system and mixed transporting tube line, and then normally carrying out of producing of impact.
Although generate the problem of solid water compound for pipe-line, researcher proposes and injects the method that the thermodynamic inhibitor such as methyl alcohol, ethylene glycol prevents from generating hydrate, but data shows, deep water hydrocarbon field substantially all ran in pipe-line the problem generating hydrate and result in blockage.And Hydrate Plugging is once occur, its de-plugging situation is very complicated, if control improper, easily causes substantial spoilage to oil gas conveying device.Therefore, the de-plugging problem of hydrate in pipe-line, become the focus in the exploitation of deep water hydrocarbon field and operational management and difficult point, famous sea God's plan, PROCAP etc. are all bar none using the core tackling key problem technology of Hydrate Plugging problem as deep water flowing safeguard technology.
At present, although the research of external hydrate solution blockage problem makes some progress, because deepwater environment is severe, this problem is not still well solved, and relevant equipment research and development are still in the starting stage.And deepwater development has just been brought into schedule by China, along with deep-sea is moved towards in China's marine petroleum development, hydrate solution blockage problem by be those skilled in the art must faced by new challenge, thus carry out hydrate and administer the research of sledge and have important practical significance.
Utility model content
The purpose of this utility model is to provide a kind of hydrate and administers sledge, for removing the blocking caused owing to generating solid water compound in offshore oil and gas conveyance conduit.
The hydrate that the utility model provides administers sledge, comprises gas-liquid recycling can and 2 snap joints;
Described snap joint is used for being connected with Hydrate Plugging section two ends in the pipe-line treating de-plugging;
Described gas-liquid recycling can is connected with 2 described snap joints respectively, and this pipeline be connected is provided with valve;
Also be connected by a pipeline between 2 described snap joints, and the pipeline of this connection is provided with valve.
Above-mentioned hydrate administers sledge, in pressure reduction, open the valve that pipeline that described gas-liquid recycling can is connected with 2 described snap joints is provided with, keep the pressure balance at Hydrate Plugging section two ends in pipe-line, guarantee that solid state gas hydrate can not be moved because two ends exist pressure reduction in the duct.
Above-mentioned hydrate administers sledge, and the pipeline being communicated with described snap joint is flexible hose, in order to ensure that the operation between two snap joint is independent of each other;
Above-mentioned hydrate administers sledge, and the two ends of described flexible hose arrange valve described in respectively, and during in order to prevent injecting inhibitor and/or high temperature logistics in oil gas pipeline, inhibitor/high temperature substrate flows in described flexible hose.
Above-mentioned hydrate administers sledge, described hydrate is administered sledge and is also comprised capsule-type storage tank, described capsule-type storage tank is used for holding hydrate inhibitor or high temperature logistics, and for decomposing solid state gas hydrate, described capsule-type storage tank is connected with 2 described snap joints respectively.
Above-mentioned hydrate administers sledge, and described capsule-type storage tank is driven by fluid clutch, and its withstand voltage is not less than 30MPa, meets the demand of 3000 meters of depth of waters;
Described fluid clutch provides driving force by underwater hydraulic station, conveniently underwater operation, and its type of drive selects hydraulic-driven.
Above-mentioned hydrate administers sledge, and described gas-liquid recycling can is provided with Pressure gauge and valve, to control the pressure of recycling can.
Above-mentioned hydrate administers sledge, and the valve that the pipeline be connected with described gas-liquid recycling can is arranged is check valve, ensures that gas-liquid can only flow to recycling can from pipe-line;
The withstand voltage of described gas-liquid recycling can is not less than 30MPa, for receiving the logistics of releasing in pipe-line to reduce the pressure of pipeline; Be full of inert gas inside during original state, the pressure of pipeline when its pressure slightly uses lower than reality, slowly to reduce the pressure of pipeline, ensure that hydrate is administered in sledge and do not generate solid state gas hydrate.
Above-mentioned hydrate administers sledge, and described gas hydrate is administered sledge and also comprised temperature sensor and pressure sensor;
Described temperature sensor and described pressure sensor be all connected to treat de-plugging pipe-line on Hydrate Plugging section two ends, and to be all connected with control system;
Measure the temperature and pressure at transportation pipeline Hydrate Plugging section two ends when described temperature sensor and described pressure sensor are used for de-plugging in real time, and transfer data to described control system.
Above-mentioned hydrate administers sledge, and described valve is all connected with described control system;
Described control system is positioned over for the reception of measurement data and the transmission of operational order on ship, when the temperature received, pressure data reach setting value, and can ON/OFF respective valves as required.
The utility model hydrate is administered sledge tool and is had the following advantages:
(1) the utility model hydrate improvement sledge is high pressure resistant, is applicable to the blocking of administering and causing owing to generating solid water compound in land or offshore oil and gas conveyance conduit.
(2) hydrate improvement sledge is connected with interface reserved in pipe-line by two snap joints, and access fast simply.Adopt flexible pipe to connect between two snap joint, make the setting of hydrate improvement sledge de-plugging access point in pipe-line more flexible.
(3) method being pre-charged with inert gas in the utility model in gas-liquid recycling can be used for the speed controlling pressure release in pipe-line, to avoid forming solid-state Hydrate Plugging during de-plugging in improvement sledge.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that the utility model gas hydrate administers when sledge coordinates with pipe-line.
In figure, each mark is as follows:
1 gas-liquid recycling can, 2 snap joints, 31,32,33,34,35,36,37 valves, 4 flexible hoses, 5 capsule-type storage tanks, 6 fluid clutch, 7 underwater hydraulic pumps, 8 Pressure gauges, 9 check valves, 10 control systems.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described further, but the utility model is not limited to following examples.
As shown in Figure 1, for the utility model gas hydrate administers schematic diagram when sledge coordinates with pipe-line, it comprises gas-liquid recycling can 1 and 2 snap joints 2, gas-liquid recycling can 1 is connected with 2 snap joints 2 respectively, and the main road be communicated with is provided with valve 37 and check valve 9 (only flowing along the direction of gas-liquid recycling can 1 for controlling logistics), 2 branch roads is respectively equipped with valve 31 and 32.When using the utility model to administer sledge, snap joint 2 is for being connected with Hydrate Plugging section two ends in the pipe-line treating de-plugging, like this, when Open valve 31,32 and 37 and check valve 9, pressure in pipe-line can reduce, and the excreta after gas hydrate decomposes is entered in gas-liquid recycling can 1 by snap joint 2.In order in the process of draining in above-mentioned step-down, ensure that the operation between 2 snap joints 2 is independent of each other, 2 snap joints 2 are connected by a flexible hose 4, and valve 33 and valve 34 are set at the two ends of this flexible hose 4, prevent excreta or other logistics from entering in flexible hose 4.The withstand voltage of gas-liquid recycling can 1 is not less than 30MPa, and arranges Pressure gauge 8 and valve 35 thereon, to monitor the pressure in it, and when its pressure exceedes the equalizing pressure of gas hydrate in pipe-line, carries out emptying step-down to gas-liquid recycling can 1.
Promote the decomposition of gas hydrate to can utilize the mode of the mode of step-down and injecting inhibitor and/or high temperature logistics simultaneously simultaneously, this hydrate is administered sledge and is also arranged capsule-type storage tank 5, its withstand voltage is not less than 30MPa, meet the demand of 3000 meters of depth of waters, for holding hydrate inhibitor and/or high temperature logistics, for decomposing solid state gas hydrate; Capsule-type storage tank 5 is connected with 2 snap joints 2 respectively, and the main road of connection is provided with valve 36; Capsule-type storage tank 5 is driven by fluid clutch 6; Fluid clutch 6 provides driving force by underwater hydraulic station 7.
In order to the temperature and pressure of Real-Time Monitoring transportation pipeline, to adjust the keying of each pipeline in time, this hydrate administers sledge also set temperature sensor and pressure sensor (not shown), the two respectively by temperature sensor signal line and pressure sensor signal line be connected to treat de-plugging pipe-line on Hydrate Plugging section two ends, and be all connected with control system 10, and each valve on pipeline is connected with control system 10, thus the data that control system 10 transmits according to temperature sensor and pressure sensor, control the keying of each valve in real time.
When using the utility model gas hydrate improvement sledge to carry out the de-plugging of gas hydrate in pipe-line, can carry out in accordance with the following steps:
In land construction process, the utility model gas hydrate is administered sledge and is connected with pipe-line; In offshore construction process, the utility model gas hydrate is administered sledge and hangs lower water by the loop wheel machine on workboat deck, be discharged into need block clearing pipeline near carry out work, the gas hydrate that workboat is connected under water by umbilical cables administers sledge, umbilical cables provides 380V electrical source of power, 220V TT&C system power supply and Optical Fiber Transmission measurement and control signal, control system is positioned on ship for the reception of measurement data and the transmission of operational order, when the temperature received, pressure data reach setting value, can ON/OFF respective valves as required.
(1) by Hydrate Plugging section two ends in pipe-line and 2 snap joint 2 snappings, open valve 31, valve 32, valve 37 and check valve 9, pipe-line is connected with gas-liquid recycling can 1.
(2) gas-liquid recycling can 1 and pipe-line is communicated with, and be communicated with 2 snap joints 2, gas hydrate then in pipe-line decomposes, logistics after decomposition is released to gas-liquid recycling can 1 (before reception logistics, inert gas is filled with in gas-liquid recycling can 1, and the little 0.5 ~ 2MPa of pressure in its pressure ratio pipe-line) in, to reduce the pressure in pipe-line; While in pipe-line, pressure reduces, open valve 33 and valve 34, be communicated with Hydrate Plugging section, to guarantee the pressure balance at Hydrate Plugging section two ends in pipe-line, ensure that solid state gas hydrate can not be moved because two ends exist pressure reduction in the duct.
(3) valve-off 33, valve 34, valve 37 and check valve 9 after logistics of releasing, cut off the connection between snap joint 2 and being communicated with between gas-liquid recycling can 1 with snap joint 2; Then open valve 36, inject hydrate inhibitor/high temperature logistics from capsule-type storage tank 5 to Hydrate Plugging section pipe-line by fluid clutch 6.
Pressure in the pipe-line that pressure sensor records is sent to control system 10, and when the equalizing pressure monitoring pressure in connecting pipeline and be increased to gas hydrate in pipe-line, (the corresponding gas hydrate of the temperature 4 DEG C in the pipe-line that the temperature sensor that control system detects records is to the pressure 3.8MP of balance
a) time, stop Hydrate Plugging section in pipe-line to inject hydrate inhibitor/high temperature logistics;
0.05MPa/min is less than when monitoring the rate of pressure rise in connecting pipeline, valve-off 36, open valve 33 and valve 34, when monitoring that in pipeline, pressure slowly raises or remains unchanged simultaneously, open valve 37 and check valve 9, be communicated with gas-liquid recycling can 1 and snap joint 2, in gas-liquid recycling can 1, earial drainage reduces to make the pressure in connecting pipeline, and 0.5 ~ 2Mpa of equalizing pressure lower than gas hydrate in pipe-line; During the pressure that pressure in logistics progress of releasing sets higher than Pressure gauge 8 on gas-liquid recycling can 1, valve-off 37, opens valve 35, logistics in release gas-liquid recycling can 1; When pressure is reduced to 0.5 ~ 2Mpa, valve-off 35, opens valve 37, continues the logistics accepting to release in oil gas pipeline.
Be cycled to repeat in above-mentioned pipe-line and utilize independent step-down mode, or utilize the mode of step-down and the mode decomposition gas hydrate process of injecting inhibitor and/or high temperature logistics, until blocking is removed in pipe-line, valve-off 33, valve 34, valve 31 and valve 32, snap joint 2 is taken off from pipe-line.
Claims (9)
1. hydrate administers a sledge, it is characterized in that: described hydrate is administered sledge and comprised gas-liquid recycling can and 2 snap joints;
Described snap joint is used for being connected with Hydrate Plugging section two ends in the pipe-line treating de-plugging;
Described gas-liquid recycling can is connected with 2 described snap joints respectively, and this pipeline be connected is provided with valve;
Also be connected by a pipeline between 2 described snap joints, and the pipeline of this connection is provided with valve.
2. hydrate according to claim 1 administers sledge, it is characterized in that: the pipeline being communicated with described snap joint is flexible hose.
3. hydrate according to claim 2 administers sledge, it is characterized in that: the two ends of described flexible hose arrange valve described in respectively.
4. hydrate according to claim 3 administers sledge, it is characterized in that: described hydrate is administered sledge and also comprised capsule-type storage tank, and described capsule-type storage tank is connected with 2 described snap joints respectively.
5. hydrate according to claim 4 administers sledge, it is characterized in that: described capsule-type storage tank is driven by fluid clutch;
Described fluid clutch provides driving force by underwater hydraulic station.
6. hydrate according to claim 5 administers sledge, it is characterized in that: described gas-liquid recycling can is provided with Pressure gauge and valve.
7. hydrate according to claim 6 administers sledge, it is characterized in that: the valve that the pipeline be connected with described gas-liquid recycling can is arranged is check valve.
8. hydrate according to claim 7 administers sledge, it is characterized in that: described hydrate is administered sledge and also comprised temperature sensor and pressure sensor;
Described temperature sensor and described pressure sensor be all connected to treat de-plugging pipe-line on Hydrate Plugging section two ends, and to be all connected with control system.
9. hydrate according to claim 8 administers sledge, it is characterized in that: described valve is all connected with described control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420565704.9U CN204220571U (en) | 2014-09-28 | 2014-09-28 | A kind of hydrate administers sledge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420565704.9U CN204220571U (en) | 2014-09-28 | 2014-09-28 | A kind of hydrate administers sledge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204220571U true CN204220571U (en) | 2015-03-25 |
Family
ID=52918714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420565704.9U Active CN204220571U (en) | 2014-09-28 | 2014-09-28 | A kind of hydrate administers sledge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204220571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324916A (en) * | 2014-09-28 | 2015-02-04 | 中国海洋石油总公司 | Hydrate controlling sledge |
-
2014
- 2014-09-28 CN CN201420565704.9U patent/CN204220571U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104324916A (en) * | 2014-09-28 | 2015-02-04 | 中国海洋石油总公司 | Hydrate controlling sledge |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20030056954A1 (en) | Methods and apparatus for a subsea tie back | |
| AU2008305441B2 (en) | Method for managing hydrates in subsea production line | |
| US8469101B2 (en) | Method and apparatus for flow assurance management in subsea single production flowline | |
| CN108672425B (en) | Automatic pipe cleaning method for deepwater underwater pipeline | |
| AU2016391059B2 (en) | Systems for removing blockages in subsea flowlines and equipment | |
| DK201570466A1 (en) | Subsea processing of well fluids | |
| US7426963B2 (en) | Piggable flowline-riser system | |
| CN102257240A (en) | System and method for delivering material to a subsea well | |
| CN103194758B (en) | Forming device for gas production pipeline corrosion inhibitor slug pre-film | |
| CN103184845A (en) | Vertical subsea tree assembly control | |
| CN110252750A (en) | A kind of equipment applied to deep-sea oil gas pipeline cleaning operation | |
| CN106401539A (en) | Underwater manifold device with automatic pipe clearing ball launching function | |
| CN204220571U (en) | A kind of hydrate administers sledge | |
| CN104324916A (en) | Hydrate controlling sledge | |
| CN108716382B (en) | Automatic pipe cleaning system for deepwater underwater pipeline | |
| CN204614336U (en) | Simulation pipe-line solid hydrate generates, the device of blocking and de-plugging | |
| CN104399716A (en) | Method for releasing blockage of hydrate in oil and gas conveying pipeline | |
| CN203441407U (en) | Locking and unlocking device of tripping tool of mandrel hanger | |
| CN101832425B (en) | Installation method of underwater tee joint of seabed pipeline | |
| CN204827390U (en) | Long device that stops well pit shaft buoyancy and receive oil | |
| CN218914561U (en) | Underwater gas injection manifold system | |
| CN113356801B (en) | Arrangement method of glycol recovery device for deep water gas field | |
| Sun et al. | Liuhua29-1 Project: A Successful Subsea Development of Deepwater Gas Field in South China Sea | |
| CN110565720B (en) | Rolling sanding belt for burying submarine pipeline and using method thereof | |
| CN213633114U (en) | Oil well ground link corrosion monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Qingping Inventor after: Wang Bingming Inventor after: Pang Weixin Inventor after: Yao Haiyuan Inventor after: Zhu Haishan Inventor after: Cheng Yan Inventor after: Cheng Bing Inventor after: Chen Shaokai Inventor before: Li Qingping Inventor before: Wang Bingming Inventor before: Pang Weixin Inventor before: Yao Haiyuan Inventor before: Zhu Haishan Inventor before: Chen Yan Inventor before: Cheng Bing Inventor before: Chen Shaokai |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170207 Address after: 100020 East Third Ring Road, Beijing, Chaoyang District No. 2 Patentee after: CNOOC Research Institute Patentee after: CNOOC Energy Technology Co., Ltd. Patentee after: NEPTUNE OFFSHORE ENGINEERING DEVELOPMENT CO., LTD. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Patentee before: China National Offshore Oil Corporation Patentee before: CNOOC Research Institute Patentee before: CNOOC Energy Technology Co., Ltd. Patentee before: NEPTUNE OFFSHORE ENGINEERING DEVELOPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Floor 14, floor No. 2, No. 6, South Street, Sun Palace, Beijing, Beijing Co-patentee after: CNOOC Energy Development Co., Ltd. Patentee after: CNOOC research institute limited liability company Co-patentee after: NEPTUNE OFFSHORE ENGINEERING DEVELOPMENT CO., LTD. Address before: 100020 East Third Ring Road, Beijing, Chaoyang District No. 2 Co-patentee before: CNOOC Energy Development Co., Ltd. Patentee before: CNOOC Research Institute Co-patentee before: NEPTUNE OFFSHORE ENGINEERING DEVELOPMENT CO., LTD. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191213 Address after: Floor 14, floor No. 2, No. 6, South Street, Sun Palace, Beijing, Beijing Patentee after: CNOOC research institute limited liability company Address before: Floor 14, floor No. 2, No. 6, South Street, Sun Palace, Beijing, Beijing Co-patentee before: CNOOC Energy Development Co., Ltd. Patentee before: CNOOC research institute limited liability company Co-patentee before: NEPTUNE OFFSHORE ENGINEERING DEVELOPMENT CO., LTD. |
|
| TR01 | Transfer of patent right |