Application of high-definition maximum positive and negative curvature in fault opening description of shale oil reservoir in Jimsar Sag, Junggar Basin, Xinjiang

Abstract

PreviousNext No AccessFirst International Meeting for Applied Geoscience & Energy Expanded AbstractsApplication of high-definition maximum positive and negative curvature in fault opening description of shale oil reservoir in Jimsar Sag, Junggar Basin, XinjiangAuthors: Wei LiXiaojun WangGang ChenTingming TangWei LiResearch Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChinaSearch for more papers by this author, Xiaojun WangResearch Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChinaSearch for more papers by this author, Gang ChenResearch Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChinaSearch for more papers by this author, and Tingming TangResearch Institute of Exploration and Development, Xinjiang Oilfield Company, PetroChinaSearch for more papers by this authorhttps://doi.org/10.1190/segam2021-3594184.1 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail AbstractThe development of shale oil horizontal wells in Jimsar Sag of Junggar Basin has entered the stage of large-scale productivity construction. The fine description of faults is very important to improve the effective producing degree of shale oil resources in Jimsar Sag and provide early warning for drilling and volume fracturing of horizontal wells. It is a necessary research work to improve drilling efficiency and fracturing effect. According to the results of real drilling and newly acquired “two wide and one high” three-dimensional seismic fault identification, faults in the shale oil reservoir of Jimsar Sag are generally developed, the source and reservoir integration, high abundance of organic matter in the source rock and strong reservoir plasticity leads to various fault types in this area, and different faults have different effects on the development of horizontal wells. In this paper, firstly, the maximum positive curvature and negative curvature attributes are obtained by Kalman filtering technique based on horizontal and vertical combination. At the same time, the fault opening is studied by combining the information of lost circulation, fracturing channeling and formation dip angle during real drilling. It is found that the open faults, semi-open fault and sealed fault have their own characteristics in the maximum positive curvature and negative curvature attributes and seismic profiles. The fault opening can be effectively identified by their respective characteristics.Keywords: faults, interpretation, unconventional, shale, signal processingPermalink: https://doi.org/10.1190/segam2021-3594184.1FiguresReferencesRelatedDetails First International Meeting for Applied Geoscience & Energy Expanded AbstractsISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2021 Pages: 3561 publication data© 2021 Published in electronic format with permission by the Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 01 Sep 2021 CITATION INFORMATION Wei Li, Xiaojun Wang, Gang Chen, and Tingming Tang, (2021), "Application of high-definition maximum positive and negative curvature in fault opening description of shale oil reservoir in Jimsar Sag, Junggar Basin, Xinjiang," SEG Technical Program Expanded Abstracts : 1006-1010. https://doi.org/10.1190/segam2021-3594184.1 Plain-Language Summary Keywordsfaultsinterpretationunconventionalshalesignal processingPDF DownloadLoading ...