【摘要】 钻井液滤饼厚度是一种十分重要的钻井液性能指标,但目前采用的钻井液滤饼厚度测量方法都是接触式的测量方法,测量时测量头会与滤饼接触,使滤饼变形影响测量精度。因此只有使用非接触法才能准确测量滤饼的厚度。介绍了其它行业成熟的几种非接触式测量技术,对这些方法能否用来测量滤饼的厚度进行了可行性研究,提出了用光、电、机相结合实现非接触测量滤饼厚度的可行性。更多还原

【Abstract】 The thickness of the mud filter cake, which is presently measured using contact methods, is a very important feature of the drilling fluids. When using the contact methods, the measuring devices will come into contact with the filter cake, leading to a transformation of the cake, which may affect the accuracy of measurement. The non-contact methods, on the contrary, have the advantage of measuring accurately the cake thickness by dismiss eliminating the cake transformation. This paper discusses several commonly used non-contact methods that have not been adopted by drilling fluid industry, and a feasibility of using these methods is discussed herein. This paper presents the possibility of using light, electron, and machine in combination to measure the cake thickness in a non-contact way.更多还原