摘要
麦盖提斜坡玉北1井区奥陶系碳酸盐岩储层经多期构造及古风化岩溶作用,属于非均质性较强的裂缝、溶洞型复杂碳酸盐岩油气藏。研究其井间连通性对于划分开发单元,进一步提高奥陶系油藏开发效益起着重要作用。针对该区缝洞碳酸盐岩储层的复杂连通关系,提出了综合利用动态信息等进行井间连通性分析,研究结果表明,该区各井为独立的缝洞单元,油气按照各单元聚集形成了各单元之间流体和压力的不连通,使得各缝洞单元具有独立的油水界面和压力系统。
Experienced multiphase tectonism, paleo-weathering, and karstification, the Ordovician carbonate-rock reservoirs in Yubei 1 well block, Meigait Slope, belong to fractured-vuggy complex carbonate- rock ones with strong heterogeneity. To study the well-to-well connectivity is significant to classify the development unit and to further increase the development benefits for these Ordovician reservoirs. So, to analyze the connectivity through adopting dynamic information is presented. Results show that(1) in this area,every well is an independent fractured-vuggy unit; and(2) oil and gas accumulated in different units may form unconnected reservoir fluid and pressure among wells, resulting in many independent oilgas interfaces and pressure systems existed in every fractured-vuggy unit.
出处
《天然气技术与经济》
2015年第1期17-19,77,共3页
Natural Gas Technology and Economy
关键词
塔里木盆地
麦盖提斜坡
碳酸盐岩
缝洞单元
井间连通性
Tarim Basin,Meigait Slope,carbonate rock,fractured-vuggy unit,well-to-well connectivity
