古岩溶储层形成模式对比研究

Camparative Study on the Formation Pattern of Palaeokarst Reservoir

摘要: 本文以鄂尔多斯盆地奥陶系、塔里木盆地奥陶系和四川盆地石炭系等国内典型的古岩溶储层为代表的油气田为对比研究对象，通过大量资料调研和分析，主要对以下几方面展开对比研究：1) 古岩溶储层岩石学特征及其与储层发育关系；2) 古岩溶相、古岩溶地貌单元及其与储层发育关系；3) 古岩溶储层形成的主控因素。通过对比分析，建立了不同地区、不同构造背景下古岩溶储层发育的形成模式及其差异性，为进一步落实和寻找不同地质背景的古岩溶储层提供地质参考。

Abstract: This comparative study focuses on palaeokarst reservoirs, like ordovician OrdosBasin, ordovicianTalimuBasinand carboniferousSichuanBasin, the representatives of domestic canonic fields. This essay mainly surveys and analyses the data on the following aspects: 1) the relationship between petrology features of palaeokarst reservoir and its developing condition; 2) the relationship between palaeokarst facies and topography units and the developing condi- tion of palaeokarst reservoir; 3) the main control factors of palaeokarst reservoir. The formation pattern of palaeokarst reservoir in distinct areas and tectonic setting is based on comparative analysis and offers geologic reference for further study on palaeokarst reservoir of distinct tectonic settings.