广浩断裂带构造样式及油气分布规律

Guanghao Fault Zone's Tectonic Style and Its Oil-Gas Distribution Pattern

在对广浩断裂带三维地震资料进行系统的构造解析基础上,结合区域地质和钻井资料,对该区的构造样式进行了详细解剖,结果表明,广浩断裂带受潜江组裂陷期和荆河镇组盐泥拱断裂影响,存在多种构造样式:西段以顺向断阶为主,中段以反向屋脊为主,东段为断背斜-反向屋脊。构造样式的形成受后期盐泥构造发育的影响很大,同时也造成广浩断裂带具有独特的油气分布规律。

On the basis of systematic structural analysis of three-dimensional seismic data of Guanghao Fault Zone,this paper has studied its tectonic style combining with areal geology and drilling data.The study shows that Guanghao Fault Zone,influenced by Qianjiang formation＇s rifting period and Jinghezhen formation＇s salt mud arch fracture,has many tectonic styles：forward-only fault terrace mainly in west section,reverse roof mainly in middle section and faulted anticline-reverse roof mainly in east section.Their formation is influenced greatly by later-period salty mud structure development and makes Guanghao Fault Zone have unique oil-gas distribution pattern.