现代地质2009，Vol.23Issue(5)：887-893,7.
渤中凹陷石南陡坡带构造-岩性复合圈闭的形成及分布规律
Forming and Distribution Regularity of the Structural-lithologic Composite Traps in the Shinan Steep Slope Zone, Bozhong Sag
摘要
Abstract
The steep slope zone is an important structural belt for hydrocarbon exploration in half graben-like sag, and the structural-lithologic composite traps are developed in this zone. These traps are important prospecting areas. However, it is very complex in structure, sedimentary facies and control factors on distribution of the structural-lithologic composite traps in this zone. Taking Shinan steep slope of Bozhong sag as an example, this paper focuses on the genesis and distribution regularity of the structural-lithologic composite traps in the steep slope zone. There are four types of structural-lithologic composite traps developing in the Shinan steep slope zone, and they are updip punch-out trap, downdip punch-out trap, lateral punch-out trap and physical property sealing trap. The distribution are controlled by the types and location of slope break zones, collocation relations of direction of drainage system and palaeogeomorphology, and as well as base level change. The steep slope break zone showing corner-like in plane is the most optimal field of the hydrocarbon exploration of the structural-lithologic composite trap. The structural-lithologic composite traps, which develop in the various series of strata and are distributed widely, are helpful to supplement shortages of the singular structural trap slope zone and reduce the exploration risk of the Shinan steep slope zone. The thinking of the structural-lithologic composite trap exploration should be built in the early exploration phase in the Shinan steep slope zone.关键词
构造-岩性复合圈闭/断裂坡折/陡坡带/古近系/渤中凹陷Key words
structural-lithologic composite trap/ fault slope break zone/ steep slope break zone/ Palaeogene/ Bozhong sag分类
能源科技引用本文复制引用
徐长贵,周心怀,杨波,王昕..渤中凹陷石南陡坡带构造-岩性复合圈闭的形成及分布规律[J].现代地质,2009,23(5):887-893,7.基金项目
国家"十五"重大科技攻关项目(2003BA613A05). （2003BA613A05）
