BORE-HOLE HYDRAULICS SIMULATOR

摘要

18 A bore hold hydraulics simulator for drilling fluid is disclosed, in which the drilling fluid is flowed along a permeable partition which divides a first volume containing the drilling fluid from a second volume adapted to collect filtrate passing through the permeable partition. A pressure differential is established across the partition so as to promote the passage of filtrate into the second volume, and means are provided for collecting the filtrate passing into the second volume.