文章基本信息

标题：Fine Single Channel Identification Controlled by Sedimentary Facies—Taking KLA Oilfield as an Example
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作者：Shaopeng Wang ; Pengfei Mu ; Qiongyuan Wu 等
期刊名称：Open Journal of Geology
印刷版ISSN：2161-7570
电子版ISSN：2161-7589
出版年度：2022
卷号：12
期号：3
页码：188-198
DOI：10.4236/ojg.2022.123010
语种：English
出版社：Scientific Research Pub
摘要：The Neogene fluvial reservoir in the Bohai oilfield is one of the leading development horizons for increasing reserves and production in the Bohai oilfield. However, the development of offshore fluvial reservoirs is faced with the problems of thin reservoir thickness, narrow plane width, rapid lateral change, and thin well pattern. Taking the KLA oilfield as an example, this paper discusses the nuanced characterization and configuration of a single channel controlled by sedimentary facies to guide developing offshore river facies’ narrow channel main control oilfield. Firstly, based on a large number of core data, the acceptable sedimentary facies identification is realized, the sedimentary model of the study area is established, the delicate calibration of logging facies and seismic facies is realized under the constraint of the sedimentary model, and a set of technical methods for nuanced reservoir characterization guided by seismic sedimentology is summarized, to realize the boundary identification of composite channel configuration and further realize the nuanced characterization of the single narrow channel. Based on this set of technology, it guides the smooth implementation of horizontal wells in the oilfield. The drilling encounter rate of the reservoir in the horizontal section of the single well exceeds 90%, ensuring the injection production connectivity and increasing the reserve production rate by more than 10%.
关键词：Sedimentary Facies ControlSingle-ChannelReservoir CharacterizationCost ReductionEfficiency Increase