Research progress and prospect of low-permeability reservoir exploitation technologies in Bohai oilfield
The efficient development of offshore low-permeability oilfields is becoming an important direction for increasing offshore oil and gas storage and production.Starting from the pilot test of low-permeability reservoir fracturing in 2006,Bohai oilfield has gradually summarized the development strategies suitable for low-permeability reservoirs after more than ten years of research and practice.A fracturing technology system is formed for conventional low-permeability reservoirs,low-permeability/ultra-low permeability reservoirs,and complex lithology low-permeability reservoirs.This technical system encompasses various techniques such as integrated fracturing technology and sand control fine layer fracturing technology for conventional low-permeability reservoirs;complex fracture reconstruction technology and layered temporary plugging fracturing technology for low-permeability/ultra-low permeability reservoirs;fracture-controlled fracturing technology,hydraulic jet fracturing and sand control technology for complex lithology low-permeability reservoirs.During the"14th Five-Year Plan"period,Bohai oilfield will focus on the core technologies such as gas injection development technology for ultra-low permeability reservoir,large-scale and low-cost fracturing and monitoring technology.On this basis,the large-scale and efficient development of low permeability reservoir in Bohai oilfield will be achieved,which provides a reference for further technology development of offshore low-permeability exploitation in China.
万方数据
维普
