文章基本信息

标题：Integrating Geology and Engineering for Viscous Oil Production Improvement—JX Oilfield, Bohai Bay, China
本地全文：下载
作者：Zhicheng Yang ; Yunpeng Li ; Zongbin Liu 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：2018
卷号：8
期号：9
页码：859-873
DOI：10.4236/ojg.2018.89050
语种：English
出版社：Scientific Research Pub
摘要：In this paper a case study is presented where refined 3D reservoir geology models, well pattern pilot test and Real-time GeoSteering tools have been integrated to optimize production performance of a viscous oil reserve. The viscous reserves were of high structural dip angle. In addition delta depositional system represented highly variable geomorphology, where stacked sandbodies and shale bedding are crossing each other frequently. In order to keep a higher production rate, using horizontal wells along with water injection was not enough; therefore, detailed reservoir characterization, well pattern pilot experiment and GeoSteering were used to optimize previous development strategy and keep horizontal trajectories safely landing into reservoir target zone. The stratigraphic sequence architecture that is derived from seismic interpretations captured the variation within these high dip structural backgrounds very effectively. The best combination of choices was “Injecting Water outside from OWC” and “Stair Shaped Horizontal Trajectories”. The borehole collision risks of these optimized strategies were then analyzed and controlled successfully by the GeoSteering tools during trajectory landing process. The reservoir development performance is improved tremendously as result of these renewed development strategies.
关键词：High Viscosity Oil DevelopmentIntegration of Geology and EngineeringHorizontal Well DevelopmentGeoSteeringImprovement of Recovery Efficiency