CN103453318B - The storage of offshore platform lean glycol and delivery method - Google Patents
The storage of offshore platform lean glycol and delivery method Download PDFInfo
- Publication number
- CN103453318B CN103453318B CN201310397469.9A CN201310397469A CN103453318B CN 103453318 B CN103453318 B CN 103453318B CN 201310397469 A CN201310397469 A CN 201310397469A CN 103453318 B CN103453318 B CN 103453318B
- Authority
- CN
- China
- Prior art keywords
- lean glycol
- glycol
- jacket leg
- storage
- lean
- 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
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 title claims abstract description 147
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 238000003860 storage Methods 0.000 title claims abstract description 29
- 238000002716 delivery method Methods 0.000 title claims abstract description 15
- 239000011261 inert gas Substances 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 2
- 230000007423 decrease Effects 0.000 abstract description 2
- 239000010959 steel Substances 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a kind of storage and delivery method of offshore platform lean glycol.The method comprises the steps: (1) adopts the jacket leg of offshore platform as lean glycol storage tank, realizes the storage to lean glycol; (2) in described jacket leg, be filled with inert gas to pressurize, utilize the pressure difference in described jacket leg and between lean glycol working tank to be delivered to by lean glycol in described lean glycol working tank, realize the conveying to lean glycol.The present invention utilizes jacket leg to store lean glycol, platform upper chunk at sea can be avoided to arrange large-scale storage tank, thus save platform space, the device layout of upper deck is optimized; Method of the present invention decreases jacket steel using amount, alleviates the lifting weight of platform upper chunk; Method of the present invention reduces difficulty and the production operation security risk of security against fire; Save construction investment.
Description
Technical field
The present invention relates to a kind of storage and delivery method of offshore platform lean glycol.
Background technique
In gas field development, rock gas in the transfer line of seabed and free water can form hydrate under uniform temperature and pressure, the generation of hydrate can reduce pipeline transmission capacity, improve production and operation cost, the equipment such as blocking pipeline valve are understood time serious, even line fracture can occur, be the key factor threatening normal production and gas pipeline safe operation.Ethylene glycol is nontoxic with it, and comparatively methyl alcohol boiling point is high, and evaporation loss is little, and the recyclable feature such as to reuse, Chang Zuowei hydrate inhibitor is used in gas exploitation.
In construction of natural gas fields project in the past, because the depth of water is more shallow, submerged pipeline fed distance is shorter, the disposable consumption of lean glycol (i.e. the Glycol Mixture of mass fraction more than 80%) is little, usually on platform, arrange storage tank, the form that supplementary ethylene glycol supplied in time by supply vessel meets Production requirement.For large-sized deep water gas field, because its depth of water is comparatively dark, seabed water temperature is lower, and pipeline fed distance is longer, therefore, larger to the demand of lean glycol.When submerged pipeline segment occurred plug flow holds liquid, platform regenerative cycle cannot be got back in moisture rich ethylene glycol a period of time use, but now lean glycol still needs to be sent to submerged pipeline entrance continuously, in order to ensure that safety and stability is produced, need on platform, store a large amount of lean glycols.For 3-1 gas field, Li Gulf, meet the consumption of the lean glycol needed for producing up to arriving 1500m
3if store lean glycol with platform storage tank form, platform construction expense will be made significantly to improve, and considerably increase platform device layout and safety fire fighting difficulty.
Summary of the invention
The object of this invention is to provide a kind of storage and delivery method of offshore platform lean glycol, method of the present invention can the device layout of Optimization Platform, reduces platform area, alleviates the weight of platform upper module, reduce production hidden danger, reduce and build cost of investment.
The storage of a kind of offshore platform lean glycol provided by the present invention and delivery method, comprise the steps:
(1) adopt the jacket leg of offshore platform as lean glycol storage tank, realize the storage to lean glycol;
(2) in described jacket leg, be filled with inert gas to pressurize, utilize the pressure difference in described jacket leg and between lean glycol working tank to be delivered to by lean glycol in described lean glycol working tank, realize the conveying to lean glycol.
In above-mentioned storage and delivery method, realize the control to the liquid level of the lean glycol in described jacket leg by the flow difference of the flowmeter on the suction line of the lean glycol on described jacket leg and outlet line.
In above-mentioned storage and delivery method, described inert gas can be nitrogen.
In above-mentioned storage and delivery method, the suction line of the lean glycol on described jacket leg and outlet line are equipped with lean glycol filter.
In method provided by the invention, the middle and upper part of the suction line of the lean glycol on described jacket leg is close to jacket leg inwall and is fixed, and center region in jacket leg is stretched in bottom, and suction line bottom position is about 2m apart from container bottom, pipeline is set to two, the using and the reserved.
In method provided by the invention, when normal storage, jacket leg internal pressure is normal pressure, first concentrate to a jacket leg conveying, until switch to another jacket leg again after being filled in this jacket leg from supply vessel or the process of glycol recycling reclaiming system is qualified on platform lean glycol;
In course of conveying, switch to the conveying that another jacket leg carries out lean glycol when the lean glycol in jacket leg reaches minimum liquid level.
Tool of the present invention has the following advantages:
The present invention utilizes jacket leg to store lean glycol, platform upper chunk at sea can be avoided to arrange large-scale storage tank, thus save platform space, the device layout of upper deck is optimized; Method of the present invention decreases jacket steel using amount, alleviates the lifting weight of platform upper chunk; Method of the present invention reduces difficulty and the production operation security risk of security against fire; Save construction investment.
Accompanying drawing explanation
Fig. 1 is the storage of offshore platform lean glycol of the present invention and the flow chart of delivery method.
Embodiment
The experimental technique used in following embodiment if no special instructions, is conventional method.
Material used in following embodiment, reagent etc., if no special instructions, all can obtain from commercial channels.
As shown in Figure 1, be the storage of offshore platform lean glycol of the present invention and the flow chart of delivery method.
1, daily storage
(1) enable outside platform that 4 jacket legs are as lean glycol storage tank, the storage area of single jacket leg is about 500m
3, lean glycol outlet line valve (i.e. outlet filter valve) is in closed condition, keeps normal pressure, nitrogen-sealed in jacket leg.
(2) when needing to receive from supply vessel or the process of glycol recycling reclaiming system is qualified on platform lean glycol, select the jacket leg that liquid level is minimum, open lean glycol inlet/outlet pipeline valve and receive lean glycol, when liquid level reaches in limited time, be manually switched to another jacket leg and adopt identical method to receive lean glycol.
2, lean glycol conveying
(1) when needs are to platform lean glycol working tank conveying lean glycol, select the jacket leg that liquid level is the highest, manual-lock lean glycol suction line valve (i.e. inlet filter valve), manual unlocking lean glycol outlet line valve (i.e. outlet filter valve), be filled with nitrogen pressurization in guide pipe support leg in advance, utilize the pressure difference in jacket leg and between lean glycol working tank to be delivered to by lean glycol in platform lean glycol working tank.The highest pressurising of nitrogen is 1500kPaG.
(2) after the liquid level in lean glycol working tank reaches the upper limit, cut off nitrogen gas source, manual-lock lean glycol outlet line valve, shed pressure in jacket leg to normal pressure, manual unlocking lean glycol suction line valve.
(3) when the liquid level during lean glycol conveying in jacket leg reaches in limited time lower, manual switchover, to the highest jacket leg of current level, repeats the operation of above-mentioned steps (1) and (2).To the jacket leg reaching liquid level lower limit, cut off nitrogen gas source, manual-lock lean glycol outlet line valve, shed pressure in jacket leg to normal pressure, manual unlocking lean glycol suction line valve.
Claims (4)
1. the storage of offshore platform lean glycol and a delivery method, comprise the steps:
(1) adopt the jacket leg of offshore platform as lean glycol storage tank, realize the storage to lean glycol;
(2) in described jacket leg, be filled with inert gas to pressurize, utilize the pressure difference in described jacket leg and between lean glycol working tank to be delivered to by lean glycol in described lean glycol working tank, realize the conveying to lean glycol.
2. storage according to claim 1 and delivery method, is characterized in that: realize the control to the liquid level of the lean glycol in described jacket leg by the flow difference of the flowmeter on the suction line of the lean glycol on described jacket leg and outlet line.
3. storage according to claim 1 and 2 and delivery method, is characterized in that: described inert gas is nitrogen.
4. storage according to claim 1 and 2 and delivery method, is characterized in that: the suction line of the lean glycol on described jacket leg and outlet line are equipped with lean glycol filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310397469.9A CN103453318B (en) | 2013-09-04 | 2013-09-04 | The storage of offshore platform lean glycol and delivery method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310397469.9A CN103453318B (en) | 2013-09-04 | 2013-09-04 | The storage of offshore platform lean glycol and delivery method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103453318A CN103453318A (en) | 2013-12-18 |
| CN103453318B true CN103453318B (en) | 2015-11-04 |
Family
ID=49735997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310397469.9A Active CN103453318B (en) | 2013-09-04 | 2013-09-04 | The storage of offshore platform lean glycol and delivery method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103453318B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116377987A (en) * | 2023-03-02 | 2023-07-04 | 海洋石油工程股份有限公司 | Design scheme for controlling arrangement in pipeline guide pipe leg |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016841A (en) * | 2007-02-13 | 2007-08-15 | 中国科学院广州能源研究所 | Method for exploiting natural gas hydrates and device thereof |
| WO2009117901A1 (en) * | 2008-03-26 | 2009-10-01 | Wu Zhirong | Liquid storing and offloading device and drilling and production installations on the sea based thereon |
| CN102428244A (en) * | 2009-05-20 | 2012-04-25 | 国际壳牌研究有限公司 | Method and apparatus for protecting flexible riser |
-
2013
- 2013-09-04 CN CN201310397469.9A patent/CN103453318B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016841A (en) * | 2007-02-13 | 2007-08-15 | 中国科学院广州能源研究所 | Method for exploiting natural gas hydrates and device thereof |
| WO2009117901A1 (en) * | 2008-03-26 | 2009-10-01 | Wu Zhirong | Liquid storing and offloading device and drilling and production installations on the sea based thereon |
| CN102428244A (en) * | 2009-05-20 | 2012-04-25 | 国际壳牌研究有限公司 | Method and apparatus for protecting flexible riser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103453318A (en) | 2013-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101409555B1 (en) | Method and System for Jointly Producing And Processing Hydrocarbons From Natural Gas Hydrate and Conventional Hydrocarbon Reservoirs | |
| CN102704894B (en) | In-situ submarine natural gas hydrate exploiting device and method thereof | |
| RU2436936C2 (en) | System, vessel and procedure for extraction of oil and heavy fractions from collectors under sea bottom | |
| CN101182771A (en) | A method and device for exploiting seabed natural gas hydrate | |
| CN203669848U (en) | High-pressure chemical-agent filling skid-mounted equipment | |
| MXPA06002480A (en) | Reception, processing, handling and distribution of hydrocarbons and other fluids. | |
| CN103233714A (en) | Fracturing sand mixing device | |
| CN101016841A (en) | Method for exploiting natural gas hydrates and device thereof | |
| NO333942B1 (en) | Methods for storing carbon dioxide compositions in geological subsurface formations and devices for use in such processes | |
| CN101554560B (en) | Method for treating coal bed gas under low pressure | |
| CN112228075B (en) | Device for exploiting marine weakly cemented non-diagenetic natural gas hydrate and its exploitation method | |
| CN103352676B (en) | The quarrying apparatus of a kind of seabed combustible ice and exploitation method | |
| CN106457170A (en) | Systems and methods for dissolving a gas into a liquid | |
| CN111648749A (en) | A mobile riser type mining system and mining method of natural gas hydrate in shallow surface layer of seabed | |
| CN219655826U (en) | Same-well injection and extraction system for sealing and storing carbon dioxide in submarine salty water layer | |
| CN103453318B (en) | The storage of offshore platform lean glycol and delivery method | |
| CN101852075A (en) | Oil-gas gathering and transferring treatment process of marine marginal oilfield | |
| CN201972673U (en) | Scattered natural gas recovery system for offshore oil field | |
| CN102269322A (en) | Hydrate collecting and packing equipment | |
| CN203321458U (en) | Exploiting device of seabed flammable ice | |
| RU2505740C2 (en) | Method for production, storage and decomposition of natural gas hydrates | |
| CN106837338A (en) | A kind of deep-sea exploitation of gas hydrates control method | |
| CN203488989U (en) | Offshore platform lean glycol storage and conveying system | |
| CN102887307A (en) | Novel underwater oil storage device adopting oil-gas displacement | |
| CN203856451U (en) | Device for exploiting natural gas hydrate in cryolithozone |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee after: CNOOC research institute limited liability company Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Beijing, Chaoyangmen, North Street, No. 25, No. Co-patentee before: CNOOC Research Institute Patentee before: China National Offshore Oil Corporation |