正常压力趋势线的建立  

The Establishment of Normal Pressure Trendline

作　　者：许庆国[1] 岳淑娟[1] 

机构地区：[1]中原石油勘探局地质录井处

出　　处：《内蒙古石油化工》2002年第3期246-248,共3页Inner Mongolia Petrochemical Industry

摘　　要：正常压力趋势线建立的基础是在二维坐标系中层速度、“dc”指数、“sigma”指数、页岩密度、地层电阻率、孔隙度等压实参数与井深存在着线形关系。本文将通过这种关系、使用最小二乘法建立正常压力趋势线方程 。In the two-dimensional reference frame, the linear relationship between parameters(such as formation velocity?d c exponent?sigma exponent?shale density?formation resistivity?porosity and so on) and depth is the foundation of the establishment of normal pressure tendline. This article lay emphasis on the establishment of normal pressure trendline equation. and practical application of the trendline equation in quantitative pressure evaluation.

关 键 词：地层异常压力 正常压力趋势线 线形方程 当量深度法 比率法 伊顿法 油气勘探 静水压力梯度 上覆压力梯度 

分 类 号：P618.13[天文地球—矿床学] TE13[天文地球—地质学]