青西油田地层压力预测技术的研究与应用  

Research and Application of Formation Pressure Prediction Technology in the Qingxi Oilfield

作　　者：王永清[1] 陈志学[2] 于文华[2] 朱敬祖 孙梦慈[2] 

机构地区：[1]玉门石油管理局井下作业公司,甘肃玉门735200 [2]玉门油田分公司勘探事业部,甘肃玉门735200

出　　处：《石油钻探技术》2005年第4期29-31,共3页Petroleum Drilling Techniques

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.

关 键 词：地层压力预测 孔隙压力 地层破裂压力 青西油田 

分 类 号：TE21[石油与天然气工程—油气井工程]