古地理学报 ›› 2023, Vol. 25 ›› Issue (5): 1118-1138. doi: 10.7605/gdlxb.2023.05.057

• 中国石油大学70周年校庆专辑(Ⅰ) • 上一篇    下一篇

非常规油气时代测井地质学研究进展*

赖锦1,2, 李红斌2, 张梅2, 白梅梅2, 赵仪迪2, 范旗轩2, 庞小娇2, 王贵文1,2   

  1. 1 油气资源与工程全国重点实验室,中国石油大学(北京),北京 102249;
    2 中国石油大学(北京)地球科学学院,北京 102249
  • 收稿日期:2022-10-11 修回日期:2023-01-09 出版日期:2023-10-01 发布日期:2023-09-28
  • 通讯作者: 王贵文,男,1966年生,教授,博士生导师,从事沉积储集层与测井地质学方面的教学与科研工作。E-mail: wanggw@cup.edu.cn
  • 作者简介:赖锦,男,1988年生,博士,副教授,博士生导师,从事沉积储集层和测井地质学教学与研究工作。E-mail: laijin@cup.edu.cn。
  • 基金资助:
    *国家自然科学基金(编号: 42002133,42072150)、中国石油大学(北京)科研启动基金(编号: 2462021YXZZ003)和中国石油—中国石油大学(北京)战略合作项目(编号: ZLZX2020-01)联合资助

Advances in well logging geology in the era of unconventional hydrocarbon resources

LAI Jin1,2, LI Hongbin2, ZHANG Mei2, BAI Meimei2, ZHAO Yidi2, FAN Qixuan2, PANG Xiaojiao2, WANG Guiwen1,2   

  1. 1 National Key Laboratory of Petroleum Resource and Engineering,China University of Petroleum(Beijing),Beijing 102249,China;
    2 College of Geosciences,China University of Petroleum(Beijing),Beijing 102249,China
  • Received:2022-10-11 Revised:2023-01-09 Online:2023-10-01 Published:2023-09-28
  • Contact: WANG Guiwen,born in 1966,Ph.D.,professor,doctoral supervisor,is mainly engaged in sedimentology,reservoir geology and well logging geology. E-mail: wanggw@cup.edu.cn.
  • About author:LAI Jin,born in 1988,Ph.D.,associate professor,doctoral supervisor,is mainly engaged in sedimentology,reservoir geology and well logging geology. E-mail: laijin@cup.edu.cn.
  • Supported by:
    National Natural Science Foundation of China(Nos. 42002133,42072150),Science Foundation of China University of Petroleum,Beijing(No.2462021YXZZ003)and strategic cooperation project of PetroChina and China University of Petroleum,Beijing(No. ZLZX2020-01)

摘要: 非常规油气时代对测井地质学研究提出了更深层次需求,亟需建立针对非常规油气的测井地质学理论与评价技术体系。通过对比常规油气与非常规油气地质特征的异同,梳理了配套的测井技术系列以及非常规油气测井评价的重点,并论述了测井储集层评价的要点和流程。归纳总结了烃源岩测井识别评价技术体系及其在资源“甜点”评价中的应用。利用LithoScanner测井识别矿物组分和TOC,通过成像测井拾取纹层等沉积构造,可实现岩相的测井判别。非常规储集层层理缝的识别与评价成为关键,通过常规与成像测井可拾取单井裂缝分布,非常规油气地质“甜点”优选应注重岩相、储集层参数以及层理缝的测井响应及其综合评价。最后强调测井脆性和地应力评价在非常规油气工程“甜点”识别与预测的重要性。指出不同尺度的地质、测井资料及其与人工智能的融合将推动测井地质学不断创新。

关键词: 非常规油气, 测井地质学, 地质与工程“, 甜点”, 岩相, 层理缝, 地应力

Abstract: Comprehensive and advanced demands are raised for well logging geology in the era of unconventional oil and gas resources,and new and comprehensive theory and technical systems are urgently to be developed in order to solve the problems in the well logging geology for unconventional oil and gas resources. This paper compares the differences of geological characteristics between conventional and unconventional hydrocarbon resources. Furthermore the matched well log series are introduced,and then the main contents in well log evaluation of unconventional hydrocarbon resources are summarized,in addition,the key points and processes of well log evaluation are clarified. The well log evaluation of source rocks,the related theorical and technical systems as well as their application in resource “sweet spot”optimization are summarized. The LithoScanner is used to determine the mineral content and total organic carbon(TOC)content,and the image log is used for picking out sedimentary structure such as lamina,and then the lithofacies can be determined using well logs. The evaluation of bedding parallel fractures in unconventional hydrocarbon resources is an important,and the integration of conventional well logs and image logs can pick out the fractures in a single well. The evaluation and prediction of geological “sweet spots”should pay attention to the well log responses and comprehensive evaluation of lithofacies,bedding parallel fracture and calculation of reservoir parameters. Lastly the importance of in situ stress fields and brittleness index are emphasized in terms of evaluation and prediction of engineering “sweet spots”. The integration of various resolution geological data,well log data and artificial intelligence will promote the continuous innovations on well logging geology.

Key words: unconventional hydrocarbon resources, well logging geology, geological and engineering “sweet spots”, lithofacies, bedding parallel fractures, in situ stress

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