Abstract
To reduce or avoid some of the ambiguities in a heterogeneous reservoir, a fine three-dimensional model would be inevitably established with the application of geostatistical techniques. BD oilfield is a low-permeability fractured reservoir with many fracture types, which composes a multi-azimuthal fracture system, causing strong anisotropy and heterogeneity. Moreover, fracture provides not only accumulation space for oil and gas but also channels for migration of hydrocarbons and water dashing and thus plays a leading role in controlling BD reservoir production. With the continuous exploitation of oil in reservoir for more than 30 years, BD oilfield has currently stepped into high water cut stage, exposing many problems such as low oil recovery, poor exploitation stability, rapid oil production decline, and one-way water intrusion. Therefore, a detailed reservoir characterization, constructed to describe reservoir behavior under strong water drive in a well-developed fractured reservoir, is urgently needed. In this study, combined with three-dimensional geostatistical techniques, an accurate and efficient reservoir parameter model that occurs in a strong heterogeneous fractured reservoir has been constructed through stratigraphic correlation and sedimentary facies analysis. Hence, all the study presented above will be available for well location, remaining oil potential-tapping and oil recovery improvement during the later study work.
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Acknowledgments
This study was carried out under the supervision and permission of SINOPEC Jiangsu Oilfield Geology Research Institute. This research involves part of my dissertation which stems from specialized research fund for the Doctoral Program of Higher Education (No. 20110003110014). Funding was provided by major projects supported by the Natural Science Research of Jiangsu Higher Education Institutions (No.16KJA170004). The authors would like to thank all the researchers for financially supporting the research project. Special thanks are extended to Dr. Yanmei Huang and Bo Lin for their help and comments on the study. We would also like to express our sincere thanks to anonymous reviewers and the Editor for their comments and suggestions that significantly improved the quality of this paper.
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Li, X., Zhang, J., Liu, L. et al. Three-dimensional reservoir architecture modeling by geostatistical techniques in BD block, Jinhu depression, northern Jiangsu Basin, China. Arab J Geosci 9, 654 (2016). https://doi.org/10.1007/s12517-016-2694-1
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DOI: https://doi.org/10.1007/s12517-016-2694-1