陆相页岩油工业化开发突破与实践——以渤海湾盆地沧东凹陷孔二段为例

doi:10.3969/j.issn.1672-7703.2019.05.006

摘要/Abstract

摘要： 大港油田历经50 余年勘探开发，面临着常规油气藏储量发现越来越少、产量递减快等突出问题。对此，大港油田公司瞄准资源潜力较大生油层系，强化理念、理论、技术和管理创新，破解突出问题，开辟了新的增储上产战场。以理念创新破解观念禁区，提出源内成藏新认识，进军沧东凹陷陆相页岩油；以理论创新破解认识雾区，创新形成“优势组构相—滞留烃超越效应”富集理论，明确了陆相页岩油富集机理；以技术创新破解勘探盲区，打造甜点体识别评价技术、水平井钻井提速、密切割体积压裂增产措施等技术，页岩油水平井实现了高产稳产；以管理创新破解成本雷区，效益倒逼、创新机制，综合成本大幅下降。沧东凹陷孔二段陆相页岩油实现工业化开发，引领页岩油业务发展，为中国页岩油革命提供了经验借鉴。

关键词: 陆相页岩油, 富集理论, 工业化开发, 孔二段, 沧东凹陷

Abstract: The Dagang oilfield has been explored and developed for more than 50 years. Now, it is confronted with some outstanding problems, such as downsizing conventional reserves and rapid production decline. In this regard, Dagang oilfield has begun to target the reservoirs with great resource potential, with the support of innovative concept, theory, technologies and management. First, Dagang oilfield innovatively proposes a concept of “intra-source hydrocarbon accumulation” to access to the continental shale oil in the Cangdong sag. Second, Dagang oilfield innovatively puts forward the enrichment theory of “dominant petrofabricfacies–retaining hydrocarbon transcendence effect”, thus identifying the enrichment mechanism of continental shale oil. Third, Dagang oilfield innovatively develops a series of technologies for sweet spot identification and evaluation, horizontal well drilling acceleration, and subdivided volume fracturing, which allow the high and stable production of horizontal shale oil wells. Fourth, Dagang oilfield achieves innovative management by adopting the economic benefit anti-driving mechanism, leading to sharp reduction of total cost. The industrial development of continental shale oil in the second member of Kongdian Formation (Kong-2 Member) in Cangdong sag heads the shale oil industry and provides a reference for China’s shale oil revolution.

中图分类号:

赵贤正, 周立宏, 赵敏, 王文革, 官全胜. 陆相页岩油工业化开发突破与实践——以渤海湾盆地沧东凹陷孔二段为例[J]. 中国石油勘探, 2019, 24(5): 589-600.

Zhao Xianzheng, Zhou Lihong, Zhao Min, Wang Wenge, Guan Quansheng. Breakthrough and practice of industrial development on continental shale oil: a case study on Kong-2 Member in Cangdong sag, Bohai Bay Basin[J]. China Petroleum Exploration, 2019, 24(5): 589-600.

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