油气藏评价与开发 >

2021 , Vol. 11 >Issue 6: 864 - 870

DOI: https://doi.org/10.13809/j.cnki.cn32-1825/te.2021.06.010

矿场应用

苏北不同类型油藏CO2驱开发模式及经济效益评价

  • 吴公益 ,
  • 赵梓平 ,
  • 吴波
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  • 中国石化华东油气分公司泰州采油厂,江苏 泰州 225300
吴公益（1982—）,男,硕士,工程师,从事油气田开发工作。地址：江苏省泰州市海陵区南通路99号泰州采油厂,邮政编码：225300。E-mail： flyingcentipede@163.com

收稿日期: 2020-04-07

  网络出版日期: 2021-12-31

基金资助

中国石化科技攻关项目“洲城中高渗高含水油藏CO2复合驱油技术”(P17056-6)

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CO2 flooding development models and economic benefit evaluation of different types of reservoirs in Subei basin

  • Gongyi WU ,
  • Ziping ZHAO ,
  • Bo WU
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  • Taizhou Oil Production Plant, Sinopec East China Oil and Gas Company, Taizhou, Jiangsu 225300, China

Received date: 2020-04-07

  Online published: 2021-12-31

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摘要

CO2驱技术在国外应用广泛,而国内应用规模相对较小,重要因素是其技术和经济指标备受考验。以近年苏北小断块油藏CO2驱项目为例,分析了CO2吞吐、低渗油藏同步气驱、气顶驱、气水交替、中高渗油藏CO2复合驱等开发模式,及其经济效益与影响因素。苏北实践表明CO2驱项目经济效益与注入成本和换油率密切相关,各开发模式经济效益有一定差异但总体较好,特别是低渗低含水油藏通过气顶驱及气水交替驱效果较佳。

关键词： 低渗油藏; 中高渗; CO2驱; CO2复合驱; 苏北; 效益评价

本文引用格式

吴公益 , 赵梓平 , 吴波 . 苏北不同类型油藏CO2驱开发模式及经济效益评价[J]. 油气藏评价与开发, 2021 , 11(6) : 864 -870 . DOI: 10.13809/j.cnki.cn32-1825/te.2021.06.010

Abstract

CO2-EOR has been widely used in foreign countries, but rare in China because of technical and economic factors. Taking the CO2 flooding project of the small fault block reservoir in Subei basin as an example, the development modes of huff-n-puff, synchronous gas injection, gas cap flooding, gas-water alternation, CO2 combined flooding in medium and high permeability reservoirs are summarized, and economic benefits and influencing factors are analyzed. The practice in Subei basin shows that the economic benefits of CO2 flooding projects are closely related to the injection cost and utilization of CO2. The economic benefits of various development models are different but overall are good, which play a better performance in low permeability and low water cut oil reservoirs through gas cap flooding and gas-water alternate flooding.

Key words： low permeability reservoir; mid-high permeability; CO2 flooding; CO2 composite flooding; Subei; economic evaluation

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