川东石炭系地层-构造复合圈闭控制因素研究  

Control Factors of Carboniferous Stratum-structure Composite Traps in the East of Sichuan

作　　者：康保平 张帆[2] 张箭[3] 陈雷[4] 汪娟[5] 

机构地区：[1]中石化西南油田气分公司勘探开发研究院,四川成都610081 [2]西南石油大学资源与环境学院,四川成都610500 [3]中石化西南油气田分公司勘探开发研究院,四川成都610081 [4]长庆油田分公司第一采油厂地质研究所,延安716000 [5]四川石油管理局,四川成都610500

出　　处：《石油天然气学报》2008年第1期184-187,共4页Journal of Oil and Gas Technology

基　　金：教育部"新世纪优秀人才支持计划"项目(NCET-04-0911);四川省重点学科建设项目(SZD0414)

摘　　要：根据川东石炭系实钻资料,结合前人资料对石炭系地层-构造复合圈闭进行了总结;在此基础上,对川东石炭系地层-构造复合圈闭的控制因素进行了研究。研究表明:古岩溶、古构造是其主要控制因素;在此过程中,根据黄龙组残余厚度分布状况提供的岩溶剥蚀强度信息、经压实恢复上覆梁山组碳质泥岩等厚度图反映的黄龙组顶面侵蚀地形变化印模及由岩溶相组合特征所显示的古水文条件,恢复了川东地区黄龙组古岩溶地貌。在分析古岩溶地貌单元古水文状况、溶蚀方式和强度、古构造及古岩溶厚度的基础上,对川东内古岩溶进行了区块划分并对川东石炭系地层-构造复合圈闭有利区带进行了预测。According to exploration drilling data of Carboniferous in the east of Sichuan, it generalized Carboniferous stratum-structure composite traps based on predecessors' study.On the basis of this research achievement, this paper researched controlling factors of stratum-structure composite traps of Carboniferous.It indicats Palaeokarst and palaeostructure are main controlling factors of stratum-structure composite traps of Carboniferous.During the process, it resumed palaeokarst's topographic expression of Huanglong Region in Carboniferous according to karst's denudation intensity data provided by relic thickness of Huanglong Region, erosion land modification's printer of Huanglong Region reflected by carbargilite's isopach map of Liangshan Region and ancient hydrologic condition showed by characteristic of karst facies group.On the basis of analyzing ancient hydrologic condition, means and intensity of corrosion, palaeostructure and ancient karst thickness, this paper classifies ancient karst in the east of Sichuan and forecasts the favorable regional stratum-structure composite traps of Carboniferous in the east of Sichuan.

关 键 词：石炭系 地层-构造复合圈闭 古岩溶 控制因素 有利区带 

分 类 号：P618.13[天文地球—矿床学]