摘要
地层压力预测对提高钻井速度、保护油层、合理设计井身结构和钻井液密度有着重要的意义。通过对完成井岩心和测井资料的分析处理,建立了青西油田地层压力预测数学模型,十多口井的现场应用表明,该模型压力预测结果误差小于10%;完井试油发现,储层污染明显减小,产量与邻井相比大幅度提高,取得了较好的经济效益。同时,也为青西油田提高钻井速度、缩短钻井周期、提高勘探开发效益奠定了坚实的基础。
Formation pressure prediction is quite meaningful for increasing drilling speed, protecting reservoir and ensuring reasonable casing programming and drilling fluid density control. On the basis of analysis of core samples and logging data acquired from completed wells, the formation pressure prediction model for the Qingxi Oifiled is developed. The formation pressure analysis outcomes were applied in the more than ten wells drilling operations with all the errors less than 10%, Well completing test has proved that the reservoir pollution is lessened obviously, the productivities has been improved greatly than the offset wells and the better economic benefits are obtained. In addition, the research and application results create a fundament for exploitation of the oil field to increase drilling speed and decrease drilling cycle and improve the economy.
出处
《石油钻探技术》
CAS
北大核心
2005年第4期29-31,共3页
Petroleum Drilling Techniques
关键词
地层压力预测
孔隙压力
地层破裂压力
青西油田
formation pressure prediction
pore pressure
formation breakdown pressure
Qingxi Oilfield
