标准化钻速法检测地层压力技术的改进与应用

IMPROVEMENT AND APPLICATION OF TESTING FORMATION PRESSURE USING STANDARDIZED DRILLING VELOCITY METHOD

利用钻井资料检测地层压力的方法，基本上都是以泥岩的压实规律为基础，以钻速的变化为根据的。但是在钻井过程中影响钻速的因素很多，可以衡量一种检测方法优劣，主要是看其能否合理、全面地考虑诸多影响因素，能否适用于现场。本文介绍标准化钻速法检测地层压力的基本原理和工作步骤，提出了适用于现场的改进的数学模型和应用方法，并与实测值很接近。

There are many kinds of methods testing formation pressure by drilling data,however,each method is based on the regulation of compaction and the variation of drilling velocity.During drilling operation, there are many factors which affect drilling velocity.In this paper,we will discuss the general principles and the process of testing formation pressre with standardized drilling velocity,present the improved mathematical models and methods suitable for field use,and also compare the testing results with other methods.