霸县凹陷文安斜坡中浅层油气优势运移通道预测  

Prediction of Dominant Hydrocarbon Migration Pathway of Mid-shallow Layer in Wen'an Slope of Baxian Depression

作　　者：吴东胜[1] 何富贵[1] 张锐锋[2] 曹兰柱[2] 肖强[3] 

机构地区：[1]长江大学地球科学学院,湖北荆州434023 [2]中石油华北油田分公司,河北任丘062552 [3]中石油青海油田分公司冷湖油田管理处,甘肃敦煌736200

出　　处：《石油天然气学报》2012年第10期8-12,166,共5页Journal of Oil and Gas Technology

基　　金：湖北省教育厅重点研究计划项目(A类)(D200712003)

摘　　要：文安斜坡中浅层古近系沙河街组二段～东营组主要发育由断层和砂体空间组合而成的"阶梯型"油气输导格架。在总结石油地质基础研究成果并划分中浅层油气运聚单元基础上,构建由供烃方式、运移动力和输导格架等构成的初始地质模型,并以构造解释、成熟源岩分布、砂地比和沉积相等地质研究成果作为原始输入数据,基于栅格数据模型实现其空间表征。应用油气优势运移通道的概率预测方法,综合考虑砂体、断层、构造和烃源岩分布等多项控制因素,以油气运聚单元为模拟单位预测优势运移通道的空间分布。与钻井成果的对比分析表明:优势运移通道预测结果可很好地对应已发现油气层,同时也反映了目前尚未钻探的优势路径分布区。The'ladder type'oil and gas conduit framework was mainly developed in Es2 Dongying Formation,which was composed of faults and sand bodies in Wen'an Slope.Based on summarization of the basic petroleum geological research,petroleum migration-accumulation unit of shallow layer was classified and the initial geologic model composed of hydrocarbon supply,migration force and conduit framework was established.Based on the raster data model,spatial characterization of the initial model was realized by using multiple achievements of geologic research as original input data which included structural interpretation,distribution of mature source rock,the results of sand ratio of formation and sedimentary facies.In consideration of multiple controlling factors such as sand body,fault,tectonic and distribution of hydrocarbon source rock,spatial distribution of dominant petroleum migration pathway was forecasted for petroleum migration-accumulation unit by using probabilistic prediction method of dominant oil and gas migration pathway.The results of comparison with drilling indicate that predicted result can be well corresponded to the discovered oil and gas reservoir,which reflects the distribution area without well drilling.

关 键 词：优势运移通道 流体输导格架 文安斜坡 霸县凹陷 

分 类 号：P618.13[天文地球—矿床学]