摘要
在分析坡折带基本理论和研究基础上,根据坡折带的形成过程,将其划分为同沉积坡折带和前沉积坡折带。依据成因机制,可以将同沉积坡折带划分为构造坡折带、沉积坡折带,而前沉积坡折带可以划分为古地貌坡折带和侵蚀坡折带。不同类型坡折带对沉积控制机制不同:构造坡折带形成的圈闭和深切谷圈闭是油气勘探重要场所;沉积坡折带易形成岩性圈闭,也为油气勘探主要目标;古地貌坡折带和侵蚀坡折带一般只控制了低位体系域的发育,影响了低位体系域的非构造性圈闭发育。
On the basic principle of slope break belt and on the basis of study, slope belt is divided into same sedimentary slope belt and former sedimentary slope belt in the process of its forming. In addition, based on forming mechanism, same sedimentary slope belt can be divided into structural and sedimentary slope belt, respectively, and while former sedimentary slope belt can be divided into palaeogeomorphology and erosion slope belt. Various slope belts have different mechanisms, as follow, traps formed by structural slope belt and incised valley traps are dominated by oil and gas, and lithologie trap is easily formed in sedimentary slope break belt, which also is main target for exploring. The development of low system zone is controlled by palaeogeomorphology and erosion slope break belts which influences nonstructural trap development in low system zone.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2008年第3期25-27,共3页
Petroleum Geology & Oilfield Development in Daqing
基金
国家重点基础研究发展计划(973计划)项目(2003CB214608)
国家自然基金项目(40742010)联合资助
关键词
层序地层
坡折带
圈闭
深切谷
sequence stratigraphy
slope break belt
trap
ineised valley
