摘要
镇巴地区位于四川盆地的东北缘,矿权主体属于南大巴滑脱断褶带内,由于构造变形强烈,目前油气勘探程度较低。为此,开展了本区油气成藏条件综合研究,分析认为镇巴地区长兴组-飞仙关组沉积时期位于台缘有利沉积相带,具备发育台缘礁滩储层的地质背景,下二叠统烃源充足;其西北部铁溪-万源地区上覆膏盐盖层分布稳定,保存条件好,总体上成藏条件较优越;有望成为近期较有利的勘探目标区。
Zhenba area is located in the northeastern margin of the Sichuan Basin and its main mining rights belongs to the southern fault-fold zone of Mt.Dabashan.The exporation degree there is still low due to the intensity of tectonic deformation.Through the comprehensive study on Changxing-Feixianguan reservoir forming conditions of Zhenba area,it is pointed out that Changxing-Feixianguan Formation of Zhenba area is located in favorable sedimentary facies of platform margin,besides,it has reef-shoal reservoir geological background,sufficient source rock.Especially the Tiexi-Wanyuan area in northwestern region has good reef-shoal reservoir,stable cap rock distribution and good reservoir forming conditions.It is expected to be the favorable exploration targets in the near future.
出处
《内蒙古石油化工》
CAS
2015年第2期104-107,共4页
Inner Mongolia Petrochemical Industry
基金
中国石化科技开发部项目"大巴山山前构造带气藏条件与目标评价"(编号P11080)资助
关键词
长兴组
飞仙关组
成藏条件
镇巴地区
Changxing Formation
Feixianguan Formation
reservoir forming conditions
Zhenba area
