苏北盆地草舍油田CO<sub>2</sub>混相驱替试验与效果分析

张奉东; 王震亮

doi:10.11781/sysydz201003296

苏北盆地草舍油田CO₂混相驱替试验与效果分析

doi: 10.11781/sysydz201003296

张奉东^1,2,
王震亮¹

1.
西北大学, 地质学系, 西安, 710069
2. 中国石油化工股份有限公司, 华东分公司, 南京, 210019

基金项目: 国家“十一五”科技支撑计划项目(2007BAB17B01);国家“863”项目(2009AA063404)资助

详细信息

作者简介:
张奉东(1961- ),男,博士生,教授级高级工程师,主要从事油田地质与开发工作.E-mail:hdzfd@126.com.

中图分类号: TE357
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出版历程
- 收稿日期: 2010-02-01
- 修回日期: 2010-06-03
- 刊出日期: 2010-06-28

THE FIELD EXPERIMENT AND RESULTS ANALYSIS OF CO₂ MISCIBLE DISPLACEMENT IN CAOSHE OILFIELD OF THE NORTH JIANGSU BASIN

Zhang Fengdong^1,2,
Wang Zhenliang¹

1.
Geology Department, Northwest University, Xi'an Shaanxi 710069, China
2. Huadong Branch, SINOPEC, Nanjing, Jiangsu 210019, China

摘要

摘要: 苏北盆地草舍油田泰州组油藏为复杂小断块油藏,水驱采收率仅32%。该文通过将CO₂混相驱油室内试验和数值模拟结果与矿场试验相结合,进行了开采效果的理论和实际分析与对比。室内试验和数值模拟结果研究表明,采用CO₂混相驱可以使该油藏采收率达到47%,比水驱油的方式提高15%。2005年7月至2009年12月,草舍油田泰州组油藏已累计注入CO₂气5 842×10⁴m³,增产原油3×10⁴t,提高采收率2%,取得了显著的增产效果。因此,CO₂混相驱油是有效的三次采油方法,对复杂断块油藏开展三次采油具有重要借鉴价值。
- CO₂混相驱油 /
- 矿场试验 /
- 提高采收率 /
- 复杂小断块油藏 /
- 泰州组 /
- 草舍油田 /
- 苏北盆地
Abstract: The Taizhou Fm reservoir in Caoshe Oilfield of the North Jiangsu Basin is a complicated and small fault block reservoir,its oil recovery by water displacement is only 32%.Combinating the laboratory and simulation results on CO₂ miscible displacement and field experiment,the theorical and pratical analysis and contrast of oilfield development are accomplished.The oil recovery of this reservoir could be enhanced upto 47% according to results of laboratory experiment and numerical simulation,and higer 15% than water drive.From May 2005 to Dec.2009,the field experiment of CO₂ miscible displacement has been finished in Taizhou Fm reservoir of Caoshe Oilfield,the cumulative amount of CO₂ gas flooding is upto 5 842×10⁴m³,the production of crude oil is increased 3×10⁴t,the oil recovery is enhanced 2%.CO₂ miscible displacement is an effective method of enhancing oil recovery,which has important reference value on tertiary oil recovery in complicated and fault block reservoirs.
- CO₂ miscible displacement /
- field experiment /
- enhanced oil recovery /
- complicated and small fault block /
- Taizhou Fm reservoir /
- Caoshe Oilfield /
- North Jiangsu Basin

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参考文献(14)

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