New advances in methods and technologies for well logging evaluation of continental shale oil in China

被引：0

作者：

Ning L. ^{[1
]}

Zhou F. ^{[1
]}

Hongliang W. ^{[1
]}

Han T. ^{[1
]}

Peng L. ^{[1
]}

Yingming L. ^{[1
]}

Zhonghua L. ^{[1
]}

Kewen W. ^{[1
]}

Binsen X. ^{[2
]}

机构：

[1] PetroChina Research Institute of Petroleum Exploration and Development, Beijing

[2] College of Geophysics, China University of Petroleum, Beijing

来源：

Shiyou Xuebao/Acta Petrolei Sinica | 2023年 / 44卷 / 01期

关键词：

horizontal well; lithofacies; remote detection technology; reserve parameter; shale gas; well logging evaluation;

D O I：

10.7623/syxb202301003

中图分类号：

学科分类号：

摘要：

Compared with marine shale oil in North America, continental shale oil in China has such characteristics as complex mineral composition, strong heterogeneity, thin single-layer thickness, and rapid vertical changes of lithologies and lithofacies. Thus, there are great difficulties in logging lithology identification, accurate calculation of rock mechanical parameters and fine division of reservoir qualities, which bring great challenges for the well logging evaluation of sweet spots in shale oil reservoirs. In view of the difficulties encountered in the logging evaluation of shale oil exploration areas in Songliao, Ordos, Junggar, and Bohai Bay basins, this paper mainly explores the new methods for shale rock physical experiment, represented by four-dimensional digital core, laboratory multi-state two-dimensional NMR spectroscopy, and onsite movable full-diameter rock core NMR spectroscopy; the new well logging technologies, represented by high-precision calculation of mineral components based on elemental logging, identification of sedimentary structure based on image logging, horizontal well interpretation, and fracturing evaluation. A complete technical system for well logging evaluation of continental shale oil has been formed, which shows the innovation and development of well logging evaluation technology of shale oil in recent years. © 2023 Science Press. All rights reserved.

引用

页码：28 / 44

页数：16

共 45 条

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