论文部分内容阅读
研究了钻井过程中的摩擦特点，确定了用ＬＥＭ—２动态润滑仪评价钻井液润滑特性的合理使用方法，发现通过调整仪器的内置常数ＣＮＳＴ，就可使不同载荷及转速对测量结果的影响减至最小，从而使不同载荷下测得的摩阻系数Ｃｆ具有可比性．开发了一种与该仪器ＳＨＣ软件系统配套使用的全中文数据处理软件——ＬＥＭＳＳ系统，可完成对钻井液体系及一种或多种润滑剂在不同用途下的评价试验数据处理，以三种不同的图形方便直观地输出评价结果．用该仪器评价了常用钻井液体系的摩阻系数，大多数水基钻井液的Ｃｆ在０．２～０．４，但只要Ｃｆ≤０．２，就可认为其润滑性能满足工程要求．
The friction characteristics during drilling are studied, and the rational use of LEM-2 dynamic lubricator to evaluate drilling fluid lubrication properties is determined. It is found that by adjusting the built-in constant CNST of the instrument, the influence of different loads and rotational speeds on the measurement results can be reduced To the minimum, so that the friction coefficient measured under different loads Cf comparable. Developed a kind of Chinese data processing software - LMSS system which is used in conjunction with SHC software system of this instrument, which can finish the evaluation test data processing of drilling fluid system and one or more lubricants under different uses, Different graphics for easy and intuitive output evaluation results. The friction coefficient of commonly used drilling fluid system is evaluated by this instrument. The Cf of most water-based drilling fluids is between 0.2 and 0.4. However, as long as Cf≤0.2, it can be considered that its lubricating property meets the engineering requirements.