Deep drilling coring is an effective method for fine study of low porosity and permeability tight reservoir,and ensuring the success of coring operation is the premise of physical study of reservoir.By analyzing the characteristics of tight sandstone sedimentary reservoir in the east third member of Caofeidian A oilfield and the application of Sichuan high strength coring tool in the east third member of the oilfield,this paper refines a series of technical measures for drilling coring in the paleogene hard sandstone conglomerate reservoir,including sticking the core horizon,selecting the appropriate coring tool,and refining the specific implementation measures of each process in the coring operation.It ensures the high yield of deep sand conglomerate core,and provides a reference for the development of the same type of tight reservoir in the later period.
关键词
致密砂砾岩/钻井取心/岩心获取率/石油化工
Key words
dense sand conglomerate/drilling coring/core acquisition rate/petrochemical industry
维普
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