Key Technologies and Practice of Shale Oil Cost-Effective Development in Jimsar Sag，Junggar Basin

doi:10.12388/j.issn.1673-2677.2024.03.002

Abstract

Abstract:

Xinjiang Jimsar Shale Oil Demonstration Area is the first national-level continental shale oil demonstration project，located in Jimsar Sag，Junggar Basin，China. The target layer is Permian Lucaogou Formation. After ten years of exploration and development，with the obtained abundant production and geological data of the reservoir and deepened geological understanding，the corresponding exploration and development technologies become fairly mature. The fine 3D seismic survey with broadband excitation and well-surface integrated acquisition improves the geological understanding. The fine characterization and classification evaluation techniques of shale oil sweet spots provide a basis for development deployment. The comprehensive mud logging technology of "gold targets" improves the target-layer drilling ratio that is fundamental for delivering high stable production from horizontal wells. The customized fracturing technology of "complex fracture networks" provides an effective means for the efficient development of shale oil. The production capacity of horizontal wells is fully exploited by the flowback and production scheme optimization technique. The marketization has greatly reduced costs and improved both quality and efficiency. The cost-effective development technology system of Jimsar shale oil provides references for the efficient exploration and development of shale oil in China.

Key words:

Junggar Basin, Jimsar Sag, shale oil, drilling, fracturing, cost-effective development

摘要：

摘要：新疆吉木萨尔页岩油示范区是首个国家级陆相页岩油示范区，位于准噶尔盆地吉木萨尔凹陷，目的层二叠系芦草沟组。该油藏历经十年的勘探开发，录取了丰富的动静态资料，地质认识不断深入，配套的勘探开发技术基本成熟定型。“宽频激发、井地联采”的精细三维地震技术提高了地质认识；页岩油甜点精细表征和分类评价技术为开发部署提供了依据；“黄金靶体”综合录井技术提高了钻遇率，是水平井获得高产、稳产的基础；“复杂缝网”定制压裂技术为高效开发页岩油提供了有效手段；排采制度优化技术充分发挥了水平井的生产能力；市场化大幅度降本实现了提质增效。吉木萨尔页岩油的效益开发技术体系为中国页岩油的高效勘探开发提供了借鉴。

关键词:

准噶尔盆地, 吉木萨尔凹陷, 页岩油, 钻井, 压裂, 效益开发

CLC Number:

TE34 ','1');return false;" target="_blank">
TE34

QI Hongyan, WU Chengmei, HU Ke, CHEN Yiwei, XU Tianlu, WANG Yongjiao.

Key Technologies and Practice of Shale Oil Cost-Effective Development in Jimsar Sag，Junggar Basin [J]. Xinjiang Oil & Gas, 2024, 20(3): 15-22.

齐洪岩, 吴承美, 胡可, 陈依伟, 徐田录, 王永娇.

准噶尔盆地吉木萨尔凹陷页岩油效益开发关键技术与实践 [J]. 新疆石油天然气, 2024, 20(3): 15-22.

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