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Oil field associated gas recycling device and method

A technology of oilfield associated gas and recovery device, which is applied in the petroleum industry, gas fuel, fuel, etc., can solve the problems of waste of resources and difficult recovery of associated gas, and achieve the effect of efficient production and rapid preparation

Pending Publication Date: 2018-11-02
SOUTHWEST PETROLEUM UNIV
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  • Claims
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Problems solved by technology

[0006] The purpose of the present invention is to provide a device and method for recovering oilfield associated gas, which is used to recover scattered, remote oilfield gas with a small gas volume, and solve the problem of a large amount of waste of resources caused by the difficulty in recovering associated gas in some remote oilfields
[0007] The present invention mainly solves the following problems:

Method used

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  • Oil field associated gas recycling device and method
  • Oil field associated gas recycling device and method
  • Oil field associated gas recycling device and method

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Embodiment

[0073] In this example, figure 1 It is a schematic diagram of an oilfield associated gas recovery device in an embodiment of the present invention, figure 2 It is a flow chart of oilfield associated gas recovery process in the embodiment of the present invention. The oilfield associated gas recovery device includes a heavy hydrocarbon removal unit 1, a pressurization unit 2, a liquid storage unit 3, a hydration reaction unit 4, a hydrate slurry output processing unit 5, a refrigeration unit 6, a first flow meter 7, and a data monitoring unit 8 ;

[0074] The heavy hydrocarbon removal unit 1 includes an associated gas inlet pipe 9, a primary separator 10, a first oil discharge pipe 11, a first exhaust pipe 12, a heat exchanger 13, a refrigerant pipe 14, a second exhaust pipe 15, a low temperature Separator 16, second oil discharge pipe 17, third exhaust pipe 18;

[0075] The supercharging unit 2 includes a filter 19, a supercharging device 20, a second flow meter 21, and a ...

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Abstract

The invention relates to an oil field associated gas recycling device and method, and belongs to the technical field of natural gas hydrate application. Through the improved design of a low-temperature separator structure, oil field associated gas enters the low-temperature separator to realize multi-section removal of heavy hydrocarbon after primary separation and low-temperature cooling; a firstrefrigerating system and a second refrigerating system are designed, so that flow of each pipeline refrigerant is regulated and controlled through a data monitoring unit; a field process is combined,a hydrate prizing production device integrating heavy hydrocarbon removal, boosting, liquid storage, hydration reaction, hydrate slurry external conveying treatment and a refrigerating unit is provided. According to the oil field associated gas recycling device and method provided by the invention, oil field associated gas is converted into hydrate, so that associated gas heavy hydrocarbon removal, hydrate quick preparation, hydrate generation speed calculation, generation amount control and the like can be realized, so that part of the resource waste problems due to the fact that associatedgas of a far oil field without pipeline facilities or not worthy of laying pipelines can be effectively solved.

Description

technical field [0001] The invention relates to an oilfield associated gas recovery device and method, and belongs to the technical field of natural gas hydrate application. Background technique [0002] Oilfield associated gas, also known as oilfield gas, usually refers to natural gas that coexists with petroleum. The main components are low molecular alkanes such as methane and ethane, and a certain amount of propane, butane, pentane, etc. For associated gas in oilfields with scattered well sites and wide distribution areas, it is very difficult to recycle and utilize it due to the large investment in pipelines and the difficulty in laying them out. The development of non-pipeline gas supply schemes will undoubtedly increase associated gas production, save energy and reduce energy consumption in oil and gas fields. Squads are of great help. [0003] At present, the main non-pipeline gas supply schemes mainly include compressed natural gas (CNG) and liquefied natural gas (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/10
CPCC10L3/101
Inventor 刘武郭琴谷雪琴付和银
Owner SOUTHWEST PETROLEUM UNIV
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