准噶尔盆地哈山西地区石炭系火成岩裂缝预测  

Fracture Prediction of Carboniferous Igneous Rock in Junggar Basin,Hashanxi Area

作　　者：王月蕾 陈学国 郝志伟 肖辉 

机构地区：[1]中石化胜利油田西部新区研究中心,山东东营257000

出　　处：《地质科技情报》2014年第2期66-71,共6页Geological Science and Technology Information

基　　金：国家重点基础研究规划"973"项目(2006CB202306)

摘　　要：哈山西地区石炭系裂缝空间发育规律复杂,导致裂缝储层难以准确预测。在裂缝地质特征剖析的基础上,运用叠后相干技术对裂缝发育带进行了宏观定性描述,同时基于技术适用性分析,针对研究区复杂高陡裂缝采用叠前AVAz技术对裂缝发育方向、密度等详细特征进行了定量预测。最终通过叠前、叠后结果的相互补充、验证得到了裂缝的综合发育特征。预测结果显示裂缝发育主体区位于哈山1井—哈山2井—哈浅7井一线以南,平面上呈点状或条带状不连续展布,剖面上呈串珠状、近块状分布,井间差别大,且多存在于断裂发育区;裂缝方向以北东向为主。最终预测结果与构造背景相匹配、与实钻情况相吻合,取得了较好的预测效果。The fracture of Carboniferous in Hashanxi area has complex development law,which cause frac- tured reservoir is difficult to predict accurately. In this study,we use coherent technology to get the macro qualitative description of fractured zones based on the analysis of fracture geological characteristics. At the same time,based on the analysis of technical applicability,in the light of complex high and steep fracture, we use prestack AVAz technology to predict the characteristics of fracture quantitatively, such as direction and density. Finally, through the supplement and verification of prestack-poststack results, we obtained comprehensive characteristics of the fracture. The prediction results show that fracture subject area is loca- ted in the south of the line of well Hasan 1--well Hasan 2--well Haqian 7 and is discontinuous distribution with the shape of point-like or ribbon in the plane. The fracture subject area is distributed as bead or block and there is big difference between wells. Also, it mainly consists in the crack zone. The direction of frac- ture is to the Northeast. The final prediction results matched with the tectonic background and coincide with the actual drilling result.

关 键 词：哈山西地区 相干 各向异性 火成岩 裂缝预测 

分 类 号：TE122.2[石油与天然气工程—油气勘探]