Gas injection flooding as an important method of EOR has been researched and applied on a large scale in both laboratory and field.

注气驱油作为提高采收率的一种重要方法，国内外已在实验室和现场进行了相当规模的研究和应用。

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The general material balance equation was applied widely in the field, but few studies about material balance equation of gas injection flooding has been conducted.

常规物质平衡方程在油田已广泛应用，然而对油田注气物质平衡方程的研究较少。

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The technology of crude oil fingerprint is first applied to the study of oilfield development by miscible gas injection flooding taking Pubei oilfield in Tuha basin as an example.

以吐哈盆地葡北油田为例，首次将原油指纹技术应用到注气混相驱油田开发研究领域。

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These generally require enhanced oil recovery techniques such as gas (CO2) injection, chemical injection, microbial injection, cyclic steam injection, steam flooding, and fire flooding.

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