The separation of solids from a drilling fluid containing solids, by means of a vibrationsseparator across a number of sieves, which can work in series or in parallel

摘要

An apparatus and method for separating solids from solids laden drilling fluid and selectively sizing the solids, the apparatus comprising a basket (312), a vibratory mechanism (314), a first screen deck (318b) and a second screen deck (318c) mounted below said first screen deck and a directing device for selecting a parallel or series mode of operation in which flow of solids laden drilling fluid is divided between the first deck and the second deck and a series mode of operation in which solids laden drilling fluid is directed on to the first screen deck and then drilling fluid screened thereby is directed on to said second screen deck, wherein the apparatus further comprises a moveable diverter tray for selecting parallel or series mode of operation, wherein said moveable diverter tray (320) is slideably arranged in rails (320a) having an expandable element (320p,320s) to selectively fix said moveable diverter tray (320) in said rails (320a).