随钻地层压力测试在油气田开发中的应用

Application of formation pressure in oilfield development

无论是油气田开发初期还是中后期,地层压力测试数据是快速准确评估地层特性的重要指标及手段,对提高油田开发效果、评估油气田动态具有十分重要的意义。本文通过对多个油气田实际数据的分析表明,利用地层压力数据分析流体系统、确定流体界面、识别流体类型、判断储层连通性、动用层位及地层渗流性等通常具有较好的效果,但在实际开发生产过程中,利用压力数据还应结合测井解释结果、油组划分对比及储层反演等资料进行综合判断,减少单一压力数据分析带来的不确定性,为合理开发油气田,降低开发风险提供可靠的依据。

Whether early or later period of oil and gas field development, formation pressuretest data is the important index and accurate method to evaluate the properties of formation,also it is great significance to improve the oilfield development effect, dynamic assessment ofoil and gas field. Case study shows that it has a good effect with using the formation pressureto analysis and identify fluid system, fluid contacts, fluid type, reservoir connectivity, developed zone and stratigraphic seepage.But in actual development process, it should be combined with well log interpretation, formation division and reservoir inversion data when usingthe pressure data to reduce the uncertainty of a single pressure data analysis, and also toprovide reliable basis for rational development of the fields and reduction of the risk in development.