RESEARCH ARTICLE


Study on Reservoir-caprock Assemblage by Dual Logging Parameter Method



Jingling Xu1, 2, *, Luofu Liu3, 4, Fei Xiao3, 4, Changchun Zou1, 2, Hao Li5, Yuanzheng Wang6, Ying Wang3, 4
1 Key Laboratory of Geo-detection (China University of Geosciences, Beijing), Ministry of Education, Beijing 100083, China;
2 State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China;
3 State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Changping, Beijing 102249, China;
4 Basin Reservoir Research Center, School of Geosciences, China University of Petroleum, Changping, Beijing 102249, China;
5 SINOPEC Shengli oilfield, Shengli, Shandong 257001, China;
6 Technology research institute of Onshore oil field in JiDong oilfield company, Tanghai, Hebei 063200, China.


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© 2015 Xu et al.;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Correspondence: * Address correspondence to this author at the Key Laboratory of Geodetection (China University of Geosciences, Beijing), Ministry of Education, Beijing 100083, China; Tel: 0086-10-82321446; Fax: 0086-10-82321044; E-mail: jlxu@cugb.edu.cn


Abstract

Generally, logging curve shape and logging data are used to identify and evaluate the reservoir and caprock in the study of reservoir-caprock assemblage in conventional logging method, which fails to distinguish the reservoircaprock assemblage and allocation relation of different producing layers (high and low production gas layer, dry layer). In order to analyze and discriminate the types of reservoir-caprock assemblage and the corresponding productivity quickly and accurately, the dual logging parameter method is put forward to study reservoir-caprock assemblage and predict its productivity. Besides, discrimination standard and allocation relationship of reservoir-caprock assemblage determined by the dual parameters of reservoir porosity and caprock porosity are also established.

Keywords: Different producing layer, dual logging parameter, productivity, reservoir-caprock assemblage.