利用测井资料预测地层三项压力技术  

TO PREDICT 3 PRESSURE PARAMETERS OF THE FORMATION WITH LOGGING DATA

作　　者：孙超[1] 李洪伟[1] 马璐[1] 

机构地区：[1]吉林油田公司采油工艺研究院

出　　处：《国外测井技术》2007年第3期11-13,17,共4页World Well Logging Technology

摘　　要：钻前地层压力预测资料，对于待钻层油气的评价具有重要作用，更是确保安全钻井的重要信息。本文阐述了计算地层压力的方法及压力预测分析系统（DrillWorks 2005）软件的应用。经分析，自然伽马、电阻率、声波时差等测井资料基本上反映了地层的综合物理性质，因而与地层压力紧密相关。据此，对应用测井资料进行地层压力预测的模式进行了分析。经吉林油田部分井次的实际验证，预测精度较高，可满足工程要求。Prediction of formation pressure before drilling is not only important to oil or gas evaluation in the pre-dfilled zone,but also the important information to ensure the safety during drilling.The method to calculate formation pressure and application of the software for the pressure prediction analysis system (DrillWorks 2005) are formulated in the paper.After analysis,some well logging data from spontaneous gam- ma,resistivity,acoustic time logging,etc.,can basically reflect the integrative physical properties of the formation.So they have close rela- tionship with formation pressure.Hereby,the mode of formation pressure prediction with well logging data is analyzed.After practical veri- fication in part of wells of Jilin oilfield,the precision is high.It can meet the needs of engineering.

关 键 词：地层孔隙压力 地层破裂压力 地层坍塌压力 压力预测 电阻率 

分 类 号：TE271[石油与天然气工程—油气井工程]