海拉尔盆地乌南地区流体性质定性识别方法  

THE FLUID PROPERTY IDENTIFICATION METHOD IN THE SOUTH WUERXUN AREA OF HAILAR BASIN

作　　者：吴庆岩[1] 董磊[1] 董永强[1] 

机构地区：[1]大庆钻探工程公司测井公司

出　　处：《国外测井技术》2014年第6期53-56,4,共4页World Well Logging Technology

摘　　要：本文针对海拉尔盆地乌南地区的地质特征和解释难题,以及该地区还没有与之适应的流体性质识别方法,致使油水层综合解释与试油产液的符合率偏低问题,根据构造特征(断块构造为主,表现西断东超的特征),沉积特征(多物源、近物源、相带窄、相变快),结合地层水矿化度变化大(中部低,向南北逐渐升高,局部异常)等因素,通过提高储层参数计算精度,细化区域,采用交会图法建立流体性质识别图版。流体性质识别图版探评井综合判准率达到了85.25%。应用到该区块的测井解释中,提高了解释符合率,见到了较好的效果。This paper aims to solve geological features and interpretation problems about the south Wuerxun area of Hailaer basin. The fluid property identification method has not adapted yet, resulting in low coincidence rate between the oil/water layer comprehensive interpretation and oil testing industry in the region. Therefore, according to the structure characteristics(mainly fault block structure,with characteristics of fracture in the west and protruding in the east), and sedimentary characteristics(more material sources, near material sources, narrow phase belt, and quick phase change), combining with the factors such as a big reservoir water salinity change(centrally low, gradually raised to the south and north, locally anomalies), etc, and by improving the accuracy of reservoir parameters and dividing region in detail, we can use the cross-plot to establish the fluid properties identification chart respectively for different blocks.The accuracy ratio of the fluid property identification chart is 85.25% in exploration and evaluation wells, and the interpretation coincidence rate reaches 81.65% in development wells. It has gained good result in the logging interpretation of the block.

关 键 词：构造 沉积 矿化度 储层参数 解释图版 

分 类 号：TE271[石油与天然气工程—油气井工程]