钻井液颗粒的尺寸测量（第一版

[中文适用范围]： 本报告旨在为选择适当的技术来确定钻井液@特别是堵漏材料（LCM）的相对较大的干燥固体添加剂的粒度分布（PSD）提供指导。不包括使用任何特定 PSD 方法的详细程序。技术人员应参考测量设备制造商的说明并遵循其指导。颗粒物的尺寸范围从直径大约一微米到几毫米，被认为是“颗粒状”。在形状@上，即相对等距（具有相似的长度@宽度@和高度）。本技术报告中的建议通常不适用于非等距（高纵横比）材料（例如纤维或薄片）的 PSD 测量。 [外文原描述]： This report is intended to serve as a guide for selection of appropriate techniques to determine the particle size distribution (PSD) of relatively large dry solid additives for drilling fluids, especially lost circulation materials (LCMs). Detailed procedures for the utilization of any specific PSD method are not included. The technician should refer to and be guided by the measurement equipment manufacturer’s instructions. The particulates range in size from approximately one micron to as much as several millimeters in diameter and are considered “granular” in shape, i.e. relatively isometric (of similar length, width and height). The recommendations in this technical report generally are not applicable to the measurement of the PSD of non-isometric (high aspect ratio) materials such as fibers or flakes.