十屋断陷层序地层特征与生储盖组合

十屋断陷经历了早期断陷和晚期消亡两大发育阶段，依据不整合面及对应的整合面，可划分出2个超层序。4个层序，分别与构造演化阶段相匹配，层序A为断陷早期形成，层序B为断陷中期产物，层序C与断陷后期相当，而层序D是断陷向坳陷转化阶段形成，同时依据基准面旋回与次级不整合面，建立起年代地层格架及基准面变化曲线。系统地划分了各层序的体系域，各体系域的生储盖分析结果表明，低水位，高水位体系域具有较好的储集条件，水进体系域则具备良好的烃和封盖条件。之间相互组合形成了十屋断陷4个生储盖组合。

Characteristics of Squence Stratigraphy and Source-Reservoir -Cap Assemblages in Shiwu Faulted -Depressin

Shiwu Faulted depression experienced two stages of evolution which are early fault depression and late vanish.On the unconformable plane and its correspondence comformable plane ,two super squences and four squences are divided out,which respectively match structural evolution stages.By the cycle of base level and the secondary uncomformable plane,the chronostratigraphic frame and the variable cuver of base level are built up.The system domain of every squence is systematicly classfied .The conditions of source reservoir cap are analyzed,LST and HST are of the better storage conditions.The TST is of the better generationg and sealing conditions.they multiple together and form into four source reservoir cap assemblages in Shiwu faulted depression.