Evaluation of vertical sealability of Binhai-Gangxi fault in Qikou Sag Bohai Bay Basin

In order to accurately and quantitatively evaluate the vertical sealability of the fault, this paper, taking the Binhai-Gangxi fault in the Qikou Sag as an example, makes full use of relevant data such as drilling, logging, and 3D seismic as the basis to establish a lateral plugging coefficient of t...

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Main Authors: Zhang Yujian, Wang Yanbin
Format: Article
Language:English
Published: Emergency Management Press 2022-02-01
Series:矿业科学学报
Subjects:
Online Access:http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2022.01.005
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author Zhang Yujian
Wang Yanbin
author_facet Zhang Yujian
Wang Yanbin
author_sort Zhang Yujian
collection DOAJ
description In order to accurately and quantitatively evaluate the vertical sealability of the fault, this paper, taking the Binhai-Gangxi fault in the Qikou Sag as an example, makes full use of relevant data such as drilling, logging, and 3D seismic as the basis to establish a lateral plugging coefficient of the geological model, calculate the lateral fault-reservoir displacement pressure difference of the fault, and couple the lateral plugging ability of drilling around the fault with the mudstone smearing method that characterizes the vertical plugging.It is calculated that the critical mudstone smear coefficient value of the fault is 6.2.Based on this quantitative evaluation, the vertical sealability of the Upper Paleozoic strata of the Binhai-Gangxi fault is obtained and verified.The results show that the upper Paleozoic of the Binhai-Gangxi fault has good vertical plugging properties as a whole, but the northwest section and the middle section have poor vertical plugging properties.The research results provide guidance and reference for oil and gas exploration in research area with complex structure background.
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spelling doaj.art-951422a22cba4c64a2861ed4354a05952022-12-22T04:34:50ZengEmergency Management Press矿业科学学报2096-21932022-02-0171455410.19606/j.cnki.jmst.2022.01.005Evaluation of vertical sealability of Binhai-Gangxi fault in Qikou Sag Bohai Bay BasinZhang Yujian0Wang Yanbin1College of Geoscience and Surveying Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaCollege of Geoscience and Surveying Engineering, China University of Mining and Technology-Beijing, Beijing 100083, ChinaIn order to accurately and quantitatively evaluate the vertical sealability of the fault, this paper, taking the Binhai-Gangxi fault in the Qikou Sag as an example, makes full use of relevant data such as drilling, logging, and 3D seismic as the basis to establish a lateral plugging coefficient of the geological model, calculate the lateral fault-reservoir displacement pressure difference of the fault, and couple the lateral plugging ability of drilling around the fault with the mudstone smearing method that characterizes the vertical plugging.It is calculated that the critical mudstone smear coefficient value of the fault is 6.2.Based on this quantitative evaluation, the vertical sealability of the Upper Paleozoic strata of the Binhai-Gangxi fault is obtained and verified.The results show that the upper Paleozoic of the Binhai-Gangxi fault has good vertical plugging properties as a whole, but the northwest section and the middle section have poor vertical plugging properties.The research results provide guidance and reference for oil and gas exploration in research area with complex structure background.http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2022.01.005fault sealing assessmenqikou sagbinhai-gangxi faultfault lateral plugging coefficientfault-reservoir displacement pressure differencemudstone smearing methodupper paleozo
spellingShingle Zhang Yujian
Wang Yanbin
Evaluation of vertical sealability of Binhai-Gangxi fault in Qikou Sag Bohai Bay Basin
矿业科学学报
fault sealing assessmen
qikou sag
binhai-gangxi fault
fault lateral plugging coefficient
fault-reservoir displacement pressure difference
mudstone smearing method
upper paleozo
title Evaluation of vertical sealability of Binhai-Gangxi fault in Qikou Sag Bohai Bay Basin
title_full Evaluation of vertical sealability of Binhai-Gangxi fault in Qikou Sag Bohai Bay Basin
title_fullStr Evaluation of vertical sealability of Binhai-Gangxi fault in Qikou Sag Bohai Bay Basin
title_full_unstemmed Evaluation of vertical sealability of Binhai-Gangxi fault in Qikou Sag Bohai Bay Basin
title_short Evaluation of vertical sealability of Binhai-Gangxi fault in Qikou Sag Bohai Bay Basin
title_sort evaluation of vertical sealability of binhai gangxi fault in qikou sag bohai bay basin
topic fault sealing assessmen
qikou sag
binhai-gangxi fault
fault lateral plugging coefficient
fault-reservoir displacement pressure difference
mudstone smearing method
upper paleozo
url http://kykxxb.cumtb.edu.cn/cn/article/doi/10.19606/j.cnki.jmst.2022.01.005
work_keys_str_mv AT zhangyujian evaluationofverticalsealabilityofbinhaigangxifaultinqikousagbohaibaybasin
AT wangyanbin evaluationofverticalsealabilityofbinhaigangxifaultinqikousagbohaibaybasin