非均质气藏水侵规律物理模拟实验研究  

Experimental Simulation Study on Water Invasion Laws of Heterogeneous Gas Reservoir

作　　者：方飞飞 刘华勋[3] 肖前华[1] 青红艳 杨棽垚 FANG Feifei;LIU Huaxun;XIAO Qianhua;QING Hongyan;YANG Shenyao(School of Oil and Gas Engineering, Chongqing University of Science and Technology, Chongqing 401331,China;School of Engineering Science, University of Chinese Academy of Science, Beijing 100190, China;Petro China Petroleum Exploration and Development Research Institute, Beijing 100190, China)

机构地区：[1]重庆科技学院石油与天然气工程学院,重庆401331 [2]中国科学院大学工程科学学院,北京100190 [3]中国石油勘探开发研究院,北京100190

出　　处：《实验室研究与探索》2019年第3期85-89,共5页Research and Exploration In Laboratory

基　　金：国家十三五油气重大专项(2016ZX05052002;2017ZX05030003);国家自然科学基金(51604053);重庆市基础与前沿研究计划项目(cstc2016jcyjA0126);重庆市教委科学技术研究项目

摘　　要：非均质气藏开发难度大,边底水的侵入更增加了气藏开发的复杂程度,因此为了能够深入认清非均质边、底水气藏的水侵规律与开发效果,设计了水侵规律物理模拟装置,开展了不同渗透率级差及不同布井方式对气藏开发效果的影响,实验结果如下:无、边底水时,同一气藏不同区域渗透率级差越大,采出程度越高;存在边底水时,气藏采出程度随着渗透率级差的增加先增大后减小;当低渗区域渗透率为0. 01 m D时,同时在高渗区储层与低渗区储层布井,气藏整体采出程度最高,当低渗区域渗透率为0. 1 m D时,仅在低渗区储层布井,能够获得最大的无水采出程度。实验结果对非均质气藏的高效开发具有指导和实践意义。Heterogeneous gas reservoirs is difficult developed, and the invasion of edge and bottom water intensifies the complexity of exploitation of such gas reservoirs. In order to understand the water invasion laws and development effect of the heterogeneous gas reservoirs with edge and bottom water, this study established experimental system of water invasion in gas reservoirs with edge and bottom aquifers to simulate the process of water invasion on the different permeability contrast and different well patterns. The results show that the larger the permeability contrast is, the higher the recovery factor when the gas reservoirs without edge and bottom water;but recovery factor increases first and then decreases with the increase of permeability contrast when the gas reservoirs with edge and bottom water. When the permeability of the low permeability zone is 0.01 mD, both arrange wells in high and low permeability zones can obtain the highest recovery factor. When the permeability of the low permeability zone is 0.1 mD, only arrange wells in low permeability zone can obtain the highest breakthrough recovery factor. The research results have important guidance and practical significance for the effective development of edge and bottom water reservoir.

关 键 词：非均质气藏 物理模拟 水侵规律 采出程度 水侵量 

分 类 号：TE37[石油与天然气工程—油气田开发工程]