The safe mud density window is presented through systemi-cally analyzing of pore pressure, insitu stress, formation strength, and log data processing.The results are successfully used for TK431 Well.

• 利用井壁稳定分析技术,通过对孔隙压力、地应力、地层强度特性的分析,结合测井资料处理确定了该油田安全钻井液密度窗口,并成功应用于该油田TK431井的钻井作业中。