摘要
普光气田飞仙关组属碳酸盐台地相,可细分为开阔台地、局限台地、蒸发台地和台盆等四个亚相。其中开阔台地相发育的鲕粒灰岩和生物碎屑灰岩为主要的储集层。该组地层可划分为2个III级层序,界面平整,上下整合接触,在工区范围内展布较好。高位体系域沉积环境为高能鲕滩、介壳滩及生物礁,而海侵体系域初期则可形成处于蒸发环境的云坪。
The sedimentary facies of Feixianguan Formation in Puguang gas field is platform carbonate facies. It could be divided into four subfacies, such as open platform, restricted platform, evaporate platform and platform basin facies. The ooid limestone and the bioclastic limestone in open platform is the mainly oil reservoir. The Feixianguan Formation can be divided into two Ⅲ sequence. The boundary between the two sequences is accordant conection. The depositional environment of HST is bioherm. Meanwhile the depositional environment of TST is often dolomite tidal flat.
出处
《地质调查与研究》
2008年第1期58-63,共6页
Geological Survey and Research
基金
国家自然科学基金资助项目(40272057)
关键词
沉积相
层序地层
飞仙关组
普光气田
sedimentary facies
sequence stratigraphy
Feixianguan Formation
Puguang gas field
