十屋油田营城组储层裂缝预测  

Fracture prediction in YingCheng Formation of Shiwu Oilfield

作　　者：李虎[1] 叶玉娟 廖冲 范晓丽[3] 范增辉 

机构地区：[1]西南石油大学研究生部,四川成都610500 [2]中国石油川庆钻探工程公司 [3]中国石化中原油田分公司勘探开发研究院

出　　处：《石油地质与工程》2010年第5期28-32,共5页Petroleum Geology and Engineering

摘　　要：利用古构造应力场二维数值模拟,对十屋油田营城组储层岩体的破裂程度进行预测,计算出研究区岩体的破裂接近程度,确定了岩体破裂程度与裂缝发育的关系以及裂缝的发育级别,对裂缝的产状和分布作出较为精细地预测和描述。研究表明,十屋油田营城组储层裂缝主要发育在断层部位及其附近地区;储层在两期构造应力场作用下共形成了2期4组裂缝;裂缝主要发育方位为北东向和近南北向。By using of paleo-tectonic stress field in two-dimen-sional numerical simulation,this paper predicted the extent of the rupture of rock of the study area and classified the coefficients of cracked approximation degree of the rock,deter-mined the relationship between the coefficients of cracked degree of the rock and fracture,the developmental level of fracture,and gave a general prediction to the fracture growth,types and azimuth of fracture.The prediction result shows that fractures in YingCheng reservoir are more devel-oped in fault and nearby ;two stages'(four groups aggre-gately)fractures,which categories are mainly early stage and late stage.main extensional directions of these fractures are SN,NE.

关 键 词：十屋油田 储层 构造应力场 裂缝预测 数值模拟 

分 类 号：TE112.2[石油与天然气工程—油气勘探]