摘要
根据吉林红岗、大庆喇嘛甸及华北二连等油田的现场统计资料，认为压裂后井口日增油量百分数与地层压力呈近似的正态分布规律。压裂的最佳时机为原始地层压力附近，低于原始饱和压力或超过原始地层压力达一个原始地饱压差时，压裂都将趋于无效。文中对此进行了机理上的探讨，并分析讨论了压前地层压力的一些现场评价方法，以期对国内油田的压裂工作提供借鉴和帮助。
Based on the field statistical data from oilfields such as Honggang, Jilin; Lamadian, Daqing; Erlian, Huabei, it is concluded that the daily incremental oil percentage of the fractured well is normally distributed together with the formation pressure. The optimal pressure for fracturing is near the formation pressure. This paper explores its mechanism, analyzes and discusses some field methods for evaluating the pre-fracturing formation pressure, and hopes can provide reference and aid for fracturing work at home.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
1999年第3期85-88,共4页
Oil Drilling & Production Technology
关键词
压裂
地层压力
边界
现场试验
水力压裂
油层
fracturing
formation pressure
boundary
field testing
evaluation
