The fault block An69-91 Reservoir is deeply buried with high temperature,high pressure and low permeability,especially the reservoir heterogeneity is serious,High mud content,in the process of water injection development,the swelling of clay minerals in the formation,so that water injection pressure rising,resulting in under-injection wells.With the decrease of reservoir pressure and bottom hole flowing pressure,rock deformation will reduce the pore space and reservoir permeability,resulting in the decrease of formation energy and production.Therefore,this kind of reservoir should be developed reasonably and effectively,and a reasonable water injection model should be put forward in order to obtain better oilfield development benefits.
关键词
低渗/高压注水/注水压力
Key words
low osmotic/high pressure water injection/water injection pressure
维普
万方数据