摘要
利用稳态依次替换法与物质平衡方程相结合的方法得到了压敏复合地层调查半径方程。压敏复合地层调查半径与压力敏感系数、产量有关,压力敏感系数愈大,压力敏感地层调查半径愈小;产量愈大,压力敏感地层调查半径愈小。当k1=k时,压敏复合地层调查半径可化为压敏地层的调查半径方程。当压力敏感系数为零时,压敏复合地层调查半径可化为复合地层的调查半径方程。所得到的压敏复合地层的调查半径方程是复合地层调查半径方程与压敏地层调查半径方程的拓展。
Investigation radius equation of composite formation sensitive to pressure was obtained by combining steady state displacement method with material balance equation.The equation of composite formation sensitive to pressure was related to the factor sensitive to pressure and production.The more the factor sensitive to pressure was and the less the investigation radius of formation sensitive to pressure was,the higher the production was and the less the investigation radius would be.When k1=k,the investigation radius equation stated above would be simplified as the investigation radius equation of formation sensitive to pressure.When the factor of sensitivity to pressure is zero,the investigation radius simplifies the investigation radius of composite formation.The investigation radius equation of composite formation sensitive to pressure is the development of the investigation radius equations of formation sensitive to pressure and composite formation.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2010年第5期121-123,共3页
Journal of Oil and Gas Technology
基金
国家科技重大专项(2009ZX05038-006
2008ZX05013)
关键词
压力敏感
复合地层
调查半径
试井分析
sensitivity to pressure
composite formation
investigation radius
analysis of well testing
