摘要
为了能够认清多井协同开发时,边、底水气藏的水侵规律与开发效果,选取多个岩心进行串、并联组合在不同开发模式下模拟边、底水气藏的开采过程。研究结果如下:在开发过程中要限制高渗区储层的采气速度,避免因为过高的采气速度导致地层水体沿着高渗储层快速锥进,造成气藏的过早水淹;不同的开发顺序水侵量和产水量差别不大,但是先开发低渗区储层再开发高渗区储层具有更高的无水采出程度和最终采出程度;高渗区储层水侵见水后气井继续生产能有效提高气藏的整体采出程度。实验结果为深入了解不同因素对多井开发水侵规律的影响,优化边底水气藏的生产提供依据。
In order to understand the water invasion law and development effect of the edge-bottom water gas reservoirs with multiwell development,different types and different permeability cores are selected to characterize the effect of the gas reservoir under the condition of different development methods. The results show that the gas production rate of the high permeability zone should be limited to avoid the rapid coning of the formation water along the high permeability zone which resulting in the premature flooding of the gas reservoir. Different development orders have little difference between water influx and water production,but the first develop low-permeability zone and then product high-permeability zone can obtain higher breakthrough recovery factor and ultimate recovery factor. The recovery factor can increase effectively of whole gas reservoir if high permeability zone do not shut the wells after water breakthrough. The experimental results provide a basis for understanding the influence of different factors on the water invasion law of multiwell development,and optimizing the production of the bottom water gas reservoirs.
作者
方飞飞
高树生
刘华勋
肖前华
马小登
张春秋
FANG Feifei;GAO Shusheng;LIU Huaxun;XIAO Qianhua;MA Xiaodeng;ZHANG Chunqiu(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;Measurement Supervision and Inspection Center of Experimental Testing Institute,Petro China Xinjiang Oilfield Company,Karamay 843000,Xinjiang,China)
出处
《实验室研究与探索》
CAS
北大核心
2019年第5期42-45,共4页
Research and Exploration In Laboratory
基金
国家自然科学基金(51604053)
国家十三五油气重大专项(2016ZX05052002),(2017ZX05030003)
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(KJ1601313)
关键词
边、底水气藏
多井开发
物理模拟
水侵规律
采出程度
水侵量
gas reservoir with edge and bottom water
multiwell development
physical simulation
water invasion law
recovery factor
water invasion
