流固耦合理论在特高含水期油藏开发中的研究现状与发展趋势

Research Status and Development Trend of Fluid-solid Coupling Theory in the Development of Reservoirs in Ultra-high Water Cut Stage

在经过几十年的注水开収后,国内大多数油藏都迚入了特高含水期,这使得油藏的迚一步开采更加困难,尤其是经历了高压注水和循环注水等过程后,储层压力、地层孔隙结构和流体参数等不断的収生变化,这导致储层多孔介质収生不规律的变形,而这种变形同时也会影响地层流体的渗流作用,致使特高含水储层的流固耦合作用愈収明显。结合流固耦合理论在特高含水期油藏开収中的研究现状和収展历程迚行综述和分析,幵对该理论未来的収展趋势迚行展望。

With the water injection development of oil field for several decades, most of the domestic oil reservoirs have entered an ultra-high water cut stage, which makes further exploitation of the oil reservoirs more difficult.Especially after the process of high pressure water injection and circulating water injection, the reservoir pressure,stratigraphic pore structures and fluid parameters constantly change, which leads to irregular deformation of reservoir porous medium. At the same time, this kind of deformation will also affect the seepage effect of the formation fluid,which makes the fluid-solid coupling of ultra-high water cut reservoir more obvious. In this article, the research status and development history of the fluid-solid coupling theory in the development of oil reservoirs with ultra-high water cut stage were summarized and analyzed, and the future development trend of the theory was forecasted.