双碳愿景下中国石化不同油藏类型CO2驱提高采收率技术发展与应用

doi:10.13809/j.cnki.cn32-1825/te.2021.06.01

油气藏评价与开发 ›› 2021, Vol. 11 ›› Issue (6): 793-804.doi: 10.13809/j.cnki.cn32-1825/te.2021.06.01

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双碳愿景下中国石化不同油藏类型CO₂驱提高采收率技术发展与应用

李阳¹(),黄文欢²,金勇³,何应付⁴,陈祖华⁵,汤勇⁶,吴公益⁷

1.中国石油化工股份有限公司,北京 100728
2.中国石化胜利油田分公司纯梁采油厂,山东滨州 256500
3.中国石化江苏油田分公司,江苏扬州 225009
4.中国石化勘探开发研究院,北京 100083
5.中国石化华东油气分公司勘探开发研究院,江苏南京 210000
6.西南石油大学油气藏地质及开发国家重点实验室,四川成都 610500
7.中国石化华东油气分公司泰州采油厂,江苏泰州 225300

收稿日期:2021-10-28 发布日期:2021-12-31 出版日期:2021-12-26
作者简介:李阳（1958—）,男,博士,教授级高级工程师,中国工程院院士,主要从事油气田开发地质、开发工程技术的研究工作。地址：北京朝阳区朝阳门北大街22号中国石油化工股份有限公司,邮政编码：100728。E-mail： liyang@sinopec.com
基金资助:
国家科技重大专项“渤海湾盆地济阳坳陷致密油开发示范工程”(2017ZX05072);中国石化重大示范工程课题“低丰度特低渗滩坝砂油藏CO₂驱技术研究与示范”(P18088-2)

Different reservoir types of CO₂ flooding in Sinopec EOR technology development and application under “dual carbon” vision

LI Yang¹(),HUANG Wenhuan²,JIN Yong³,HE Yingfu⁴,CHEN Zuhua⁵,TANG Yong⁶,WU Gongyi⁷

1. China petroleum and chemical corporation, Beijing 100728, China
2. Chunliang Oil Production Plant, Sinopec Shengli Oilfield, Binzhou, Shandong 256500, China
3. Sinopec Jiangsu Oilfield, Yangzhou, Jiangsu 225009, China
4. Sinopec Petroleum Exploration and Production Research Institute, Beijing 100083, China
5. Research Institute of Exploration and Development, Sinopec East China Oil and Gas Company, Nanjing, Jiangsu 210031, China
6. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500, China
7. Taizhou Oil Production Plant, Sinopec East China Oil and Gas Company, Taizhou, Jiangsu 225300, China

Received:2021-10-28 Online:2021-12-31 Published:2021-12-26

摘要/Abstract

摘要：

CO₂驱油技术具有提高原油采收率和CO₂封存的双重目的,具有较大的发展前景,特别是碳减排的需要给予了技术规模应用较大的发展空间。中国石化CO₂驱的发展历程可以分为单井吞吐、先导试验和全面推广应用3个阶段,经过50多年的发展,CO₂驱油机理及配套技术已经较为成熟。结合中国石化油藏特点以及混相驱、近混相驱、非混相驱3种CO₂驱动类型,建立了CO₂驱油藏筛选标准。明确了低渗透油藏、致密油藏、中高渗透油藏这3类油藏的CO₂驱油机理。以苏北盆地草舍油田阜三段油藏、花26断块阜三段油藏、洲城油田垛一段油藏以及渤海湾盆地正理庄高89-1块油藏为例,总结了中国石化典型区块的实际开发效果,表明CO₂驱是提高原油采收率的重要方式。针对低渗油藏和中高渗透油藏CO₂驱规模应用面临的技术瓶颈,提出进一步加强驱油机理和提高注气效果的研究,推进碳捕集利用与封存（CCUS）技术的发展,对于实现“碳达峰”“碳中和”和保障国家能源安全具有重要的意义。

关键词: 碳捕集利用与封存（CCUS）, CO₂驱, 不同油藏类型, 提高采收率, 机理, 标准, 开发效果

Abstract:

CO₂ flooding has the dual purpose of enhancing oil recovery（EOR） and carbon dioxide storage, and has a large development prospect. In particular, the need of carbon emission reduction gives a large space for the development of large-scale application of this technology. For Sinopec, the development history of CO₂ flooding can be divided into three stages: single well stimulation, pilot test and comprehensive application. After more than 50 years of development, CO₂ flooding mechanism and supporting technology have been relatively mature. According to the reservoir characteristics of Sinopec and three types of CO₂ flooding, which are miscible drive, near miscible drive and immiscible drive, the screening standard of CO₂ drive reservoir are established to clarify the mechanism of CO₂ flooding in low permeability reservoir, tight reservoir, medium and high permeability reservoir. Taking three reservoirs of Subei Basin, Fu-3 member of Caoshe Oilfield, Fu-3 member in Hua-26 fault block, and Duo-1 member of Zhoucheng Oilfield, and Gao-89-1 block of Zhengli Zhuanggao Block in Bohai Bay Basin as examples, the actual development effect of typical blocks are summarized, showing that CO₂ flooding is an important way to improve oil recovery efficiency. In order to solve the technical bottleneck of large-scale application of CO₂ flooding in low permeability reservoirs and medium-high permeability reservoirs, the researches on oil displacement mechanism and gas injection effect should be further strengthened to promote the development of CCUS. It is of great significance to achieve “carbon peak” and “carbon neutral” and ensure national energy security.

Key words: carbon capture, utilization and storage（CCUS）, CO₂ flooding, different reservoir type, enhanced oil recovery, mechanism, standard, development effect

中图分类号:

TE357

李阳,黄文欢,金勇等. 双碳愿景下中国石化不同油藏类型CO₂驱提高采收率技术发展与应用[J]. 油气藏评价与开发, 2021, 11(6): 793-804.

Yang LI,Wenhuan HUANG,Yong JIN, et al. Different reservoir types of CO₂ flooding in Sinopec EOR technology development and application under “dual carbon” vision[J]. Petroleum Reservoir Evaluation and Development, 2021, 11(6): 793-804.

图/表 12

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类型	原油相对密度	深度（m）	原油黏度/（mPa·s）
CO₂混相驱	<0.825 1	>762	<10
	0.865~0.825	>853
	0.887~0.865	>1 006
	0.922~0.887	>1 219
CO₂非混相驱	0.920~0.980	549	<600

筛选参数	原油黏度（mPa·s）	原油密度（g/cm³）	剩余油饱和度	油藏深度（m）	地层温度（℃）
CO₂混相驱	<10	<0.876	>30	>1 000	<120
CO₂近混相驱	<50	<0.922	>30	>1 000	<120
CO₂非混相驱	<600	<0.980	>40	>600	<120
对应因素	混相特征,注入能力	混相能力	EOR潜力	混相能力	混相能力
筛选参数	渗透率（10^-3μm²）	变异系数	油藏压力	储量规模（10⁴t）	提高采收率幅度（%）
CO₂混相驱	>1	<0.75	p_地>1.0 p_MMP	>100	>12
CO₂近混相驱	>1	<0.75	p_地=0.8~1.0 p_MMP	>100	>8
CO₂非混相驱	>1	<0.55	p_地<0.8 p_MMP	>100	>6
对应因素	注入能力	波及系数	混相条件	封存能力及投资管理	经济效益

双碳愿景下中国石化不同油藏类型CO₂驱提高采收率技术发展与应用

Different reservoir types of CO₂ flooding in Sinopec EOR technology development and application under “dual carbon” vision

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