【摘要】 位于酒西盆地西部的青西油田由若干个深层裂缝性油气藏组成,裂缝是油气的主要储集空间,又是油气的主要渗流通道,主力油层段位于裂缝发育段内,油田内裂缝发育区为高产井区。目前已运用多种方法研究裂缝,诸如全直径岩心X-CT扫描、核磁共振分析、成像测井裂缝解释识别、三维地震相干数据体处理以及地震属性提取分析等手段,从裂缝静态特征描述、井筒周围裂缝评价、裂缝分布预测等方面研究裂缝,并确定裂缝发育层段及裂缝发育区分布。更多还原

【Abstract】 Qingxi oilfield,located in western Jiuxi basin of Gansu province,is composed of a number of deep frac-tured hydrocarbon reservoirs.Fractures are not only the primary petroleum-storage spaces,but also major percolation flow channel in this area.The major oil zone is situated in well-developed fractural zones which are generally high pro-duction areas in the oilfield.About these fractures,lots of techniques have been applied currently to study such as full diameter core’s X-CT scanning,NMR analysis,fractural interpretation/identification by image log,3D seismic phase-interference data processing and seismic attribute extraction analysis,etc.These techniques can be used to study frac-tures by fractural static characterization fractural evaluation around wellbore and fractural distribution prediction,and to determine fracture developed zones and their distributions.更多还原