Instruments for studying the tribological behavior of drilling fluids

摘要

The invention relates to testing technique is designed to determine the strength of a pair of "metal-metal" friction during reciprocation of the samples in the corrosion-aggressive liquid media of different viscosity with high solids content and may find application in the oil industry for the study of the interaction locks the drill tubes, columns of tubing with the inner surface of the casing, as well as interaction of the pistons and sleeves of pumps drilling rigs and cementing units. The problem to be solved by the proposed utility model is to provide the possibility of carrying out tests on a "rod-finger" to the registration of the friction force between the samples in real time. The problem is solved in that the device for studying the tribological properties of drilling fluids comprising a chamber for testing according to the "rod-finger", further comprising a strain gauge fixed bolt holder mounted via a threaded connection to the threaded connecting shaft connecting the sample " rod "with a load cell, and attached to the slider on the thread with the sealing gap rubber seal, held clamping threaded sleeve.