摘要
以碳酸盐岩沉积学为基础,利用钻井岩心、野外露头和测井资料,对上扬子龙王庙组的碳酸盐岩台地模式及其油气勘探影响因素进行研究。研究认为:龙王庙中、晚期,上扬子碳酸盐岩台地初具镶边台地模式特征,局限台地相带宽广,开阔台地相带狭窄,可见台地边缘以及台缘斜坡带沉积。龙王庙组台内滩沉积体易形成溶蚀孔隙储层,咸化澙湖相膏盐岩能作为区域性优质盖层,与台内滩相和咸化澙湖相相关的圈闭都具有良好的油气勘探潜力。
Based on carbonate sedimentology,drilling core samples,field outcrops and well- logging data are used to study the carbonate platform mode and influencing factors of hydrocarbon exploration in Longwangmiao formation. Research demonstrates that in middle and late Longwangmiao age,the Upper- Yangtze carbonate platform is featured by rimmed platform mode with wide restricted platform facies and narrow open platform facies,and the platform margin and slope are visible. The platform desk sedimentary bodies are easy to form dissolved pore reservoir,and gypsum- salt cap rock of salty lagoon facies can be perceived as regional high-quality cap- rock. The traps relating to platform desk facies and salty lagoon facies possesses good hydrocarbon exploration potential.
出处
《特种油气藏》
CAS
CSCD
北大核心
2015年第1期61-65,153,共5页
Special Oil & Gas Reservoirs
基金
中国地质调查局攻关项目"雪峰山西侧地区海相油气地质调查"(1212010782003)
关键词
碳酸盐岩台地
镶边台地
油气勘探
龙王庙组
清虚洞组
上扬子区
carbonate platform,rimmed platform,hydrocarbon exploration,Longwangmiao-age,Qingxudong formation,Upper-Yangtze region
