CN204852914U - Liquid CO2 pours into ground conveying system of oil gas well into - Google Patents
Liquid CO2 pours into ground conveying system of oil gas well into Download PDFInfo
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- CN204852914U CN204852914U CN201520599843.8U CN201520599843U CN204852914U CN 204852914 U CN204852914 U CN 204852914U CN 201520599843 U CN201520599843 U CN 201520599843U CN 204852914 U CN204852914 U CN 204852914U
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- CN
- China
- Prior art keywords
- gas well
- liquid
- oil
- oil gas
- storage tank
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/70—Combining sequestration of CO2 and exploitation of hydrocarbons by injecting CO2 or carbonated water in oil wells
Abstract
The utility model relates to a pour into cryogenic liquids into on the ground of oil gas well and carry process systems, especially relate to one kind and pour into liquid carbon dioxide into ground conveying system that the oil gas well realizes that enhanced oil recovery or geology seals up up for safekeeping. A liquid CO2 pours into ground conveying system of oil gas well into which characterized in that: include through connecting CO2 tank wagon, CO2 storage tank, hello liquid pump and the plunger pump that the pipeline connected gradually, wherein, the CO2 storage tank is connected that the pipeline is external to have a vaporizer between the liquid pump with feeding, and the CO2 storage tank is connected to the vaporizer, and the plunger pump links to each other through connecting pipeline and oil gas well head. The utility model discloses connection structure is simple, is applicable to to use down at the complicated orographic condition in north of shanxi province gully, preferably, the still stratum injection that the pipeline satisfies the distributed CO2 of realization under the small -scale circumstances of being connected through injection allocation valves and oil gas well head.
Description
Technical field
The utility model relates to a kind of ground delivery technology system cryogenic liquide being injected Oil/gas Well, particularly relates to a kind of floor-based transport liquid carbon dioxide being injected Oil/gas Well realization raising recovery rate or geological storage.
Background technique
Carbon dioxide drive is a ripe oil recovery technique.Practice at home and abroad shows, in exploitation extra-low permeability oil reservoirs, and CO
2drive more conventional water drive and have the advantage reducing reservoir Lower Limit of Producing of Ultra-low and improve recovery rate, can improve oil recovery factor 8-10%, be a kind of desirable Means To Increase Production.Current CO
2the displacement of reservoir oil improves recovery efficiency technique and has become the large oil production method in the world three.
In recent years, CO has also been carried out in succession in the oil field such as domestic grand celebration, triumph, Jiangsu, Jilin
2drive and improve recovery rate research.Investigation finds, these oil fields are at CO
2in the transfer designs of ground, mainly undertaken by long-distance transportation through pipeline, quantity delivered is large, CO in course of conveying
2conveying phase be mainly gaseous state.Use is carried out in the area that these mode of movements are adapted at physical features comparatively smooth, and under such as Loess Plateau of North Shaanxi ravines and guillies criss-cross terrian condition, on a small scale, distributing CO
2injection feature, considering just to seem from technical and Economy does not conform to reality.Therefore, along with domestic each major oil companies implement CO at northern Shensi Ordos Basin
2drive raising recovery rate, a kind of distributing, on a small scale, technique is simple, the CO that can develop at a progressive speed
2injection technology just seems particularly important.
Meanwhile, domestic each energy company, in the development of North Shaanxi coal-fired power project, will produce a large amount of CO
2; Along with national CO
2trapping utilizes and the propelling of sealing industrial technology innovation strategy up for safekeeping, and climate warming problem progressively draws attention, CO
2as the main source of greenhouse effect, controlling its discharge amount becomes the key of dealing with problems.Wherein, be injected into stratum, realizing forever burying is one of effective reduction mode; Therefore, invent the delivery technology adapted with it and just seem particularly urgent.
Summary of the invention
The utility model is intended to propose the simple liquid CO of a kind of structure
2inject the floor-based transport of Oil/gas Well.
The technical solution of the utility model is:
A kind of liquid CO
2inject the floor-based transport of Oil/gas Well, it is characterized in that: comprise the CO connected successively by connecting line
2tank car, CO
2storage tank, hello liquid pump and plunger pump; Wherein, CO
2storage tank and the connecting line of feeding between liquid pump are circumscribed with vaporizer, and vaporizer connects CO
2storage tank, plunger pump is connected with oil and gas wellhead by connecting line.
Connecting line between described plunger pump and oil and gas wellhead is provided with injection allocation valve group.
Described injection allocation valve group is one or more groups, is connected respectively by connecting line with one or more groups oil and gas wellhead.
Technique effect of the present utility model is:
The utility model linkage structure is simple, is applicable to use under the MODEL OVER COMPLEX TOPOGRAPHY of gully, northern Shensi, preferably, is also met by the connecting line of injection allocation valve group and oil and gas wellhead and realize distributing CO in small-scale situation
2stratum inject.
Accompanying drawing explanation
Fig. 1 is a kind of liquid CO of the utility model
2inject the annexation figure of the floor-based transport of Oil/gas Well.
Wherein, 1-CO
2tank car, 2-CO
2storage tank, 3-feeds liquid pump, 4-plunger pump, 5-injection allocation valve group, 6-vaporizer.
Embodiment
A kind of liquid CO
2inject the floor-based transport of Oil/gas Well, comprise the CO connected successively by connecting line
2tank car 1, CO
2storage tank 2, hello liquid pump 3, plunger pump 4 and injection allocation valve group 5; Wherein, CO
2storage tank 2 and the connecting line of feeding between liquid pump 3 are circumscribed with vaporizer 6, and vaporizer 6 connects CO
2storage tank 2, the connecting line between plunger pump 4 and well head is provided with injection allocation valve group 5, and injection allocation valve group 5 is one or more groups, connects one or more groups oil and gas wellhead respectively by connecting line; Wherein, CO
2tank car 1, CO
2storage tank 2, feed on connecting line between liquid pump 3, plunger pump 4, injection allocation valve group 5 and oil and gas wellhead and be equipped with valve.
The novel using process of this practicability is:
CO
2after tank car 1 enters the station, by CO
2unload flexible pipe on tank car 1 and CO
2storage tank 2 inlet line is docked, and then starts CO
2tank car 1 carries unloading pump, opens unload valve and CO
2storage tank 2 enters tank valve, realizes CO
2proceed to.Close into tank valve and valve of unloading after unloading, stop unloading pump; To be unloaded pipeline and CO
2storage tank 2 inlet line is separated.
Open CO
2storage tank 2 and the valve of feeding between liquid pump 3, start and feed liquid pump 3; Open the valve of feeding between liquid pump 3 and plunger pump 4 when feeding liquid pump 3 outlet pressure and reaching 3.0MPa, open plunger pump and the valve between 4 and injection allocation valve group 5 and the valve between injection allocation valve group 5 and oil and gas wellhead afterwards, start plunger pump 4 simultaneously.
When stopping operation, first stop plunger pump 4, then close valve between injection allocation valve group 5 and oil and gas wellhead and plunger pump and the valve between 4 and injection allocation valve group 5.Then close the valve of feeding between liquid pump 3 and plunger pump 4, stop feeding liquid pump 3, then close CO
2storage tank 2 and the valve of feeding between liquid pump 3.
A small amount of CO
2cO is returned after vaporizer 6
2storage tank 2, to ensure CO
2storage tank 2 internal pressure.Overwhelming majority CO
2after feeding liquid pump 3, enter plunger pump 4, after pressurization, be delivered to each oil and gas wellhead.
The utility model CO
2temperature-20 DEG C in tank car 1, pressure 2.0MPa, CO
2temperature-20 DEG C in storage tank 2, pressure 1.825 ~ 2.0MPa, feeds liquid pump 3 outlet pressure 3.0MPa.In the utility model, connecting line selects 16Mn steel.
Claims (3)
1. a liquid CO
2inject the floor-based transport of Oil/gas Well, it is characterized in that: comprise the CO connected successively by connecting line
2tank car (1), CO
2storage tank (2), hello liquid pump (3) and plunger pump (4); Wherein, CO
2storage tank (2) and the connecting line of feeding between liquid pump (3) are circumscribed with vaporizer (6), and vaporizer (6) connects CO
2storage tank (2), plunger pump (4) is connected with oil and gas wellhead by connecting line.
2. a kind of liquid CO as claimed in claim 1
2inject the floor-based transport of Oil/gas Well, it is characterized in that: the connecting line between described plunger pump (4) and oil and gas wellhead is provided with injection allocation valve group (5).
3. a kind of liquid CO as claimed in claim 2
2inject the floor-based transport of Oil/gas Well, it is characterized in that: described injection allocation valve group (5) is one or more groups, is connected respectively by connecting line with one or more groups oil and gas wellhead.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599843.8U CN204852914U (en) | 2015-08-11 | 2015-08-11 | Liquid CO2 pours into ground conveying system of oil gas well into |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599843.8U CN204852914U (en) | 2015-08-11 | 2015-08-11 | Liquid CO2 pours into ground conveying system of oil gas well into |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204852914U true CN204852914U (en) | 2015-12-09 |
Family
ID=54743459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520599843.8U Active CN204852914U (en) | 2015-08-11 | 2015-08-11 | Liquid CO2 pours into ground conveying system of oil gas well into |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204852914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263259A (en) * | 2022-09-20 | 2022-11-01 | 陕西延长石油（集团）有限责任公司 | Ground pipeline optimization system for oilfield water injection and gas injection development and optimization method thereof |
-
2015
- 2015-08-11 CN CN201520599843.8U patent/CN204852914U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263259A (en) * | 2022-09-20 | 2022-11-01 | 陕西延长石油（集团）有限责任公司 | Ground pipeline optimization system for oilfield water injection and gas injection development and optimization method thereof |
| CN115263259B (en) * | 2022-09-20 | 2023-08-08 | 陕西延长石油（集团）有限责任公司 | Ground pipeline optimization system for oil field water injection and gas injection development and optimization method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |