盐湖盆地复杂岩性区储层预测方法研究——以江汉盆地潜江凹陷为例  

Methodology of reservoir prediction in areas with complicated lithology in saline lake basins:A case study of the Qianjiang Sag,Jianghan Basin

作　　者：罗劲[1] 李铭华[1] 郭丽彬[1] 钟庆良[2] 孔金平[2] 查光煜[1] 

机构地区：[1]中国石化江汉油田分公司勘探开发研究院,武汉430223 [2]中国石化江汉油田分公司物探研究院,武汉430035

出　　处：《石油实验地质》2016年第2期273-277,共5页Petroleum Geology & Experiment

基　　金：中国石化科技项目"江汉盆地再分析及新区新领域勘探潜力评价"(ZKD0214002)资助

摘　　要：通过对江汉盆地潜江凹陷王—广—浩地区古近系潜江组潜4段0油组半咸化期砂岩储层的预测,形成了一套剖析盐湖盆地复杂岩性区储层的预测方法——"四定法"储层预测技术,即:地质地震复合相定相带、岩石物理建模定标志、多属性地质综合分析定边界、确定性反演定厚度。近3年来,采用"四定法"在潜江凹陷进行边研究、边实践、边总结,发现了多个高产滩坝岩性油藏,取得了较好的勘探效果。该方法的推广应用,可有效提高复杂岩性区储层预测的准确性。Sandstone reservoirs were predicted so as to propose a new method for the studies of reservoirs with complicated lithology in saline lake basins. The study area was the semi-saline period in the oil group no. 0 in the fourth member of the Paleogene Qianjiang Formation（ E2q04） in areas W,G,and H in the Qianjiang Sag of Jianghan Basin. The method was called ＂four-definition＂,which defines sedimentary facies through integrating geologic data with seismic data,defines markers through petrophysical modeling,defines geological boundaries through comprehensive multi-attribute geological analysis,and defines stratigraphic thicknesses through definitive inversion. Applications in the Qianjiang Sag succeeded in finding several high-yielding oil pools of beach bar facies,showing that the method can improve the prediction accuracy in reservoirs with complicated lithology.

关 键 词：复杂岩性区 储层预测 潜江凹陷 江汉盆地 盐湖盆地 

分 类 号：TE122.24[石油与天然气工程—油气勘探]