碳酸盐岩潜山储层垂向分带及油气藏流体分布规律

从古岩溶形成的基本条件出发，提出可溶性岩石和具溶蚀性的流动水是岩溶发育的基本条件，古岩溶与古风化壳常共生．受储层结构的非均质性、构造圈闭分割性、流体分布不完善性及高地温场等因素影响，流体在古潜山奥陶系储层的分布很复杂，孔、洞、缝发育程度及搭配好坏是决定油气产量的核心，圈闭条件与流体分布也密切相关．

The Qianshan Mountain vertical branch belt of stored layer and the fluid distribution law of oil gas in the carbonate rock

In accordance with the basic condition of ancient karst formed, the dissolved stone and the mobile water with corrasion are put forward as the basic conditions of karst development. The ancient karst usually associates with fossil weathered residua. The fluid distribution in Ordovician reservoir of buried hill is very complex because of being affected by the heterogeneity of reservoir structure, the segmentation of structural trap, the non-integrality of fluid distribution and high geothermal temperature field and so on. The core of determination the production of oil and gas are the development content and matching of pore, cavern and fissure, and the trap condition is also concerned with fluid distribution.