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在油气钻探过程中,地层压力预测是一项十分关键的基础工作。特别是对于科学探索井,精确的地层压力预测能够为钻井液密度选择、钻井参数优化和井身结构设计提供科学依据。针对流花19-3科探井的地震资料,以及周边区块已钻井的地质、地震、钻井、测井、测试等资料分析,得出了科探井地层孔隙压力、破裂压力和坍塌压力剖面,建立了合理的钻井液安全密度窗口。
In the process of oil and gas drilling, formation pressure prediction is a very crucial basic work. Especially for scientific exploration wells, accurate formation pressure prediction can provide a scientific basis for drilling fluid density selection, drilling parameter optimization and well structure design. Aiming at the seismic data of Liuhua 19-3 exploratory well and the geologic, seismic, drilling, logging and testing data analysis of the surrounding blocks, the formation pore pressure, rupture pressure and collapsing pressure profile have been obtained. Reasonable drilling fluid safety density window.