Drilling fluid tester targets fluid loss, bridging capacity

摘要

Drilling fluid tests have numerous important facets, and increasingly significant property measurements are fluid loss and, by extension, the bridging capacity of the fluid being tested. Low fluid loss and minimal loss of whole fluid are integral parts of modern drilling fluid design and have become vital performance criteria. Considering the current industry-specified testing to characterize the performance of both fluid loss and bridging capability in a drilling fluid, combined with the risk in working with compressed gas in certain locations, Vertechs has developed the High Pressure Invasion Tester. The device depends on generating a mechanical force to a confined test body that applies pressure up to 900 psi to the fluid sample.