摘要
应用层序地层学解释方法对乌尔逊凹陷北部下白垩统地层进行了层序地层分析，将其划分为４个层序和４种层序类型，即简单断陷层序、快速断坳层序、同生断坳层序和简单坳陷层序。不同的层序发育有不同的体系域类型；重点分析了构造活动对这些层序和体系域类型的控制作用。在充分利用钻井、测井、地震资料的基础上建立了该地区层序地层充填模式；指出油气在这些层序和体系域类型中的赋集规律，认为快速断坳层序和同生断坳层序能形成最有利的生储盖组合。
According to the
interpreted approaches of sequence stratigraphy,the lower Cretaceous strata in the northern
Wuerxun sag can be divided into four types of sequence,namely simply faulted
sequence,quickly faulteddepressed sequence,syngenetic faulteddepressed sequence and
simply depressed sequence.Different sequences have different system tracts and petroleum
potential.The development of sequences and system tracts are mainly controlled by the
tectonic events,and the most favorable sequence types are the quickly faulteddepressed
sequence and syngenetic faulteddepressed sequence,for they both contain best source
rock,reservoir bed and caprock.
出处
《石油学报》
EI
CAS
CSCD
北大核心
1999年第3期25-30,共6页
Acta Petrolei Sinica
关键词
层序地层学
断陷盆地
油气聚集
乌尔逊凹陷
sequence stratigraphy
faulted basin
sequence
type
system tracts type
oil accumulation
Wuerxun sag
