摘要
裂缝预测方法大多基于现今的构造属性特征,而通过三维构造恢复预测裂缝的方法则考虑了多期构造运动对裂缝发育的影响,特别是断层形态对上盘地层变形的影响。应用3DMove的三维面模型构造恢复方法,对惠民凹陷商541井区沙三段中亚段侵入岩进行了构造恢复,计算了侵入岩的现今累加应变量,并进行了裂缝预测;利用曲率属性提取方法对研究区的裂缝进行了预测,对2种方法的预测结果进行了对比。构造恢复方法预测结果表明,研究区商541、商548井区均具有较高的累加应变量,构造裂缝发育;曲率属性提取预测方法结果表明,商548井区曲率值低,裂缝不发育。参照商541和商548井的孔隙度、渗透率等参数,将2种裂缝预测方法进行了对比,基于三维构造恢复技术的裂缝预测方法预测效果较好。
Most of the fracture prediction methods are based on the present geological structure characteristics, without considering the effect of multi-stage tectonic movements, especially the effects of the fault shape on strata in hanging wall. Using the Plane Model in 3DMove software, the method based on 3D restoration is applied to calculate the present accumulative strain and predict fractures, in the middle E2s3 intrusive rocks of Shang541 region, Huimin sag. The principal curvature of the top of intrusive rocks is also calculated. With reference to the porosity and permeability data of two wells, the fracture prediction result by 3D restoration is contrasted with that by curvature method. It shows that the 3D restoration method is highly applicable to the fracture prediction in special lithologic body, such as intrusive rocks, of which the curved surface is not formed totally by tectonic deformation.
出处
《油气地质与采收率》
CAS
CSCD
北大核心
2013年第6期51-53,60,共4页
Petroleum Geology and Recovery Efficiency
基金
中国石化重点科技攻关项目"济阳坳陷第三系储层预测技术优化集成研究"(P07029)
关键词
裂缝预测
三维构造恢复
侵入岩
曲率属性
商541井区
fracture prediction
3D structural restoration
intrusive rocks
curvature attribute
Shang541 region
