地层压力随钻检测新方法及其应用

A New Method of Formation Pore Pressure Detection while Drilling and Its Application

根据目前国内在地层孔隙压力预测及检测方面存在的困难和问题，提出了地层孔隙压力随钻检测新方法——岩石强度法。通过实验建立了合理的岩石强度计算模型；利用现场大量的随钻录井数据和测试数据建立了岩石强度与地层孔隙压力的关系模型，并对地层孔隙压力的具体计算方法作了阐述。开发研制出地层孔隙压力综合评估软件系统。新疆塔西南地区３口井和渤海油田４口井中应用表明，新方法检测精度高，适应性强。

According to detailed analyses to existing formation pore pressure prediction and detection methods,a new method of formation pore pressure detection while drilling,that is rock strength method,is put forward in this paper.Based on experimental data,a reasonable model to calculate rock strength is also founded.In the meantime,the relationship between rock strength and formation pore pressure is developed.The applications of the new method in some wells at Bohai and Southwestern Tarim Basin show that it is better than traditional methods.