多层合采气藏层间动用差异及其主控因素研究
Journal of Hebei University of Engineering(Natural Science Edition)(2018)
Abstract
以靖边气田A井区为例,利用钻井及生产动态资料,通过地质储量、动储量、泄流半径、动静储量比计算与分析,详细剖析了多层合采气藏层间动用差异及其主控因素.研究表明:靖边气田多层合采条件下层间动用极不均衡,小层动静储量比最小6.8%、最大79.8%,差异较大;气藏呈现一高多低的动用格局,马五13动用突出,其它小层动用普遍较低;相关性分析表明,层间动用差异受控于储层物性,尤其是渗透率,且小层动静储量比与渗透率呈指数密切相关.
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