Experiments on CO<sub>2</sub> flooding mechanism for Tahe sandstone reservoir with strong bottom water

LIU Xueli; ZHENG Xiaojie; TAN Tao; DOU Lian; XIE Shuang

doi:10.13809/j.cnki.cn32-1825/te.2020.06.018

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Experiments on CO₂ flooding mechanism for Tahe sandstone reservoir with strong bottom water

更新时间：2025-12-11

- Experiments on CO₂ flooding mechanism for Tahe sandstone reservoir with strong bottom water
- Petroleum Reservoir Evaluation and Development Vol. 10, Issue 6, Pages: 115-120(2020)
- 作者机构：
  
  中国石化西北油田分公司,新疆,乌鲁木齐,830011
- 作者简介：
- 基金信息：
- DOI：10.13809/j.cnki.cn32-1825/te.2020.06.018
  CLC： TE341
- Published：2020
- 稿件说明：
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LIU Xueli, ZHENG Xiaojie, TAN Tao, et al. Experiments on CO₂ flooding mechanism for Tahe sandstone reservoir with strong bottom water[J]. Petroleum Reservoir Evaluation and Development, 2020, 10(6): 115-120.
DOI：

LIU Xueli, ZHENG Xiaojie, TAN Tao, et al. Experiments on CO₂ flooding mechanism for Tahe sandstone reservoir with strong bottom water[J]. Petroleum Reservoir Evaluation and Development, 2020, 10(6): 115-120. DOI： 10.13809/j.cnki.cn32-1825/te.2020.06.018.

摘要

针对塔河油田强底水砂岩油藏开发后期井间剩余油难动用

常规提高采收率方法不适用的难题

探索开展了强底水砂岩油藏CO

驱技术的可行性研究。利用室内实验、数值模拟和常规油藏工程相结合的方法

开展了底水砂岩油藏CO

驱机理研究

确定了塔河底水砂岩油藏 CO

的最小混相压力为29.6 MPa

初步明确了CO

驱具有膨胀作用、扩大横向波及作用等主要机理。CO

在油水中的溶解分配比为4:1左右

驱可以提高采收率12.5 %

明确了底水砂岩油藏CO

驱具有较好的可行性。研究结果为塔河底水砂岩油藏CO

驱先导试验提供了技术支撑。

Abstract

In the later development stage of strong bottom water sandstone reservoir of Tahe Oilfield

the development effect of remaining oil between wells is poor

and the conventional EOR methods is inapplicable. In order to solve these problems

the feasibility of CO

flooding in this type of reservoir has been explored. By combining laboratory experiments

numerical simulation and conventional reservoir engineering

the CO

flooding mechanism for sandstone reservoir with strong bottom water has been studied

and the MMP of CO

used in Tahe sandstone reservoir with strong bottom water is determined to be 29.6 MPa

the main mechanism of CO

flooding is preliminarily d

efined to be such as swelling of oil and expansion of horizontal swept area

the dissolution and distribution ratio of CO

in oil and water is about 4:1

and the CO

flooding can increase the recovery by 12.5 %. All these show that CO

flooding in Tahe sandstone reservoir with strong bottom water is feasible. The research results lay a theoretical foundation for EOR technology of this kind of reservoir and provide a scientific basis for CO

flooding pilot test of Tahe bottom water sandstone reservoir.

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Related Institution

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AI问答

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Experiments on CO2 flooding mechanism for Tahe sandstone reservoir with strong bottom water

DOI：10.13809/j.cnki.cn32-1825/te.2020.06.018

摘要

Abstract

关键词

Keywords

references

Experiments on CO₂ flooding mechanism for Tahe sandstone reservoir with strong bottom water