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准确计算地层三压力,对井身结构与井控的设计及优质高效钻完井工程有着非常重要的作用。9条常规测井曲线的解释结果不能满足钻井工程对井控压力参数的时效和精度要求。本文以鄂尔多斯盆地姬塬区块的油井为例,从地层声波全波信息提取和岩石力学参数计算出发,充分利用偶极声波和常规测井资料进行地层三压力的计算,建立盆地多个区块的地层“三力”剖面,采用VB语言和EXCEL工具开发了“鄂尔多斯盆地地层三力数据库”程序,实现对盆地各区块多口井的地层三压力数据的管理和应用,为钻井工程的井控压力参数设计提供了可靠依据。
Accurately calculating the pressure of three formations plays a very important role in the design of wellbore structure and well control as well as high quality and high efficiency drilling and completion engineering. The interpretation results of nine conventional well logs can not meet the requirements of aging and precision of well control pressure parameters. Taking oil wells in the Jiyuan block of Ordos Basin as an example, based on the full-wave information extraction and rock mechanics parameters of formation sound waves, dipole sound waves and conventional well logging data are used to calculate the formation pressure and establish multiple zones in the basin Developed the “Ordos Basin Stratigraphic Data” program using VB language and EXCEL tool to realize the management and application of formation three pressure data of multiple wells in each block in the basin. Engineering well control pressure parameter design provides a reliable basis.