大庆油田化学驱提高采收率技术

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摘要通过跟踪分析大庆油田20世纪70年代以来开展的化学驱技术攻关实践,系统总结了所形成的化学驱理论、技术的适应性及存在问题,提出了未来的发展方向及思路。大庆油田在化学驱提高采收率技术方面,主要建立了低酸值原油形成超低界面张力的表面活性剂与原油匹配关系理论,自主研制出系列表面活性剂产品;形成化学驱注入参数优化及数值模拟等关键技术;发展了化学驱分质分层注入、清防垢采油工艺、配注及采出液处理工艺,形成了配套的采油及地面工程技术。大庆油田化学驱应用效果著,聚合物驱提高采收率12%,三元复合驱提高采收率18%。进一步提高化学驱采收率,可从3个方面开展攻关：①油藏表征由精细向精准发展;②提高采收率技术向智能、高效方向发展;③配套工艺向绿色、高效、智能化发展。图12表4参17

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关键词 ：大庆油田, 化学驱, 表面活性剂与原油匹配理论, 注入参数优化, 工程配套技术, 提高采收率

Abstract：By tracking and analyzing the research and practices of chemical flooding carried out in the Daqing Oilfield,NW China since the 1970s, the chemical flooding theory, technology adaptability and existing problems were systematically summarized, and directions and ideas of development in the future were proposed. In enhanced oil recovery by chemical flooding, the Daqing Oilfield developed theories related to compatibility between crude oil and surfactant that may form ultra-low interfacial tensions with low-acidity oil and a series of surfactant products were developed independently. The key technologies for chemical flooding such as injection parameter optimization and numerical simulation were established. The technologies of separation injection, cleansing and anti-scaling, preparation and injection, and produced liquid processing were developed. The matching technologies of production engineering and surface facilities were formed. Through implementation of chemical flooding, the Daqing Oilfield achieved outstanding performances with enhanced recovery rate of 12% in chemical flooding and with enhanced recovery rate of 18% in ASP flooding. To further enhance the oil recovery of chemical flooding, three aspects need to be studied: (1) fine characterization of reservoirs; (2) smart and efficient recovery enhancement technologies; (3) green, high-efficiency and smart matching processes.

Key words： Daqing Oilfield chemical flooding surfactant-oil match theory injection parameter optimization engineering support technology enhanced oil recovery

收稿日期: 2018-02-26 出版日期: 2018-05-28

PACS:

TE357.463

基金资助:国家重大科技专项“大型油气田及煤层气开发”（2011ZX05052）; 国家重大科技专项“大庆长垣特高含水油田提高采收率示范工程”（2011ZX05010）

通讯作者: 伍晓林（1966-）,男,安徽芜湖人,博士,大庆油田勘探开发研究院教授级高级工程师,主要从事三次采油化学驱提高采收率和油田化学方面的研究工作。地址：黑龙江省大庆市,大庆油田勘探开发研究院,邮政编码：163712。E-mail: wuxldq@petrochina.com.cn

作者简介: 孙龙德（1962-）,男,山东寿光人,中国工程院院士,主要从事油气田开发工程与石油地质方面的研究。地址：黑龙江省大庆市,中国石油大庆油田有限责任公司,邮政编码：163002。E-mail: sld@petrochina.com.cn

引用本文:

孙龙德, 伍晓林, 周万富, 李学军, 韩培慧. 大庆油田化学驱提高采收率技术[J]. 石油勘探与开发, 0, (): 20181800-20181800.
SUN Longde, WU Xiaolin, ZHOU Wanfu, LI Xuejun, HAN Peihui. Technologies of enhancing oil recovery by chemical flooding in Daqing Oilfield, NW China[J]. Petroleum Exploration and Development, 0, (): 20181800-20181800.

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http://www.cpedm.com/CN/ 或 http://www.cpedm.com/CN/Y0/V/I/20181800

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