摘要
根据六盘山盆地西南缘地区的布格重力异常分布特征,发现南华山一带的布格重力异常分布与地形高程呈"同步型"的变化特征。结合重力、地质和钻井等资料综合研究认为,这是其地层老、变质程度高作用的结果。盆地西南缘推覆构造、断裂和褶皱异常发育,很有可能形成构造圈闭或非构造圈闭油气藏。盆地西南缘发育的大量北西向背斜型圈闭是与逆冲推覆构造相关的构造圈闭,是油气运聚集的有利场所,具有较好的勘探潜力。
Based on the southwest margin of Bouguer gravity anomaly distribution characteristics of six basin, discovered along the south mountain bouguer gravity anomaly distribution and terrain elevation was ＂synchronous＂ specific characteristics. Combined with gravity, geological and drilling data studies suggest, this is a result of its old formation and the high metamorphic grade. Overthrust structure, faults and folds are developed in basin in the southwest edge, is likely to form traps or non-structural traps in reservoirs. And the development of anticline traps of southwestern margin of the basin are structural traps related to overthrust structure, and is the favorable place for hydrocarbon migration and accumulation,has preferable hydrocarbon potential.
出处
《石油化工应用》
CAS
2014年第11期75-79,共5页
Petrochemical Industry Application
基金
陕西省教育厅专项科研计划项目
项目编号:14JK1579
西安石油大学研究生创新基金
项目编号:2013cx120213
关键词
重力场
圈闭
构造特征
油气勘探
gravity field
trap
tectonic characteristics
oil and gas exploration
