Research on Production Increase and Injection Technology for Low Permeability Oil Reservoirs
This article aims to explore advanced technology for increasing production and injection in low-permeability reservoirs,in order to address the current situation in China where low-permeability reservoirs have a high proportion of reserves,are difficult to develop,and have low recovery rates.The article first introduces the current situation of low-permeability oilfield development,including the difficulty of exploration,limited recovery technology,poor water injection development effect,and environmental and cost pressures.Secondly,a correlation analysis was conducted on the formation mechanism and characteristics of blockages in low-permeability reservoirs.Finally,in response to the technical challenges faced in the development of low-permeability oil reservoirs and the characteristics of low-permeability oil reservoirs,this article proposes production and injection technologies for low-permeability oil fields,such as hydraulic fracturing technology,acidification injection technology,horizontal well and multi-stage fracturing combined technology,nanofluid flooding technology,etc.,in order to comprehensively apply various production and injection technologies to improve the development efficiency and recovery rate of low-permeability oil reservoirs,and provide strong support for the sustainable and stable development of China's petroleum resources.