Method and apparatus for soil mechanics measurements of...

Details Method and apparatus for soil mechanics measurements of... Method and apparatus for soil mechanics measurements of...

E - Fixed Constructions

21

B

73/124, 166/2

E21B 49/10 (2006.01) E21B 47/08 (2006.01) E21B 49/00 (2006.01) G01N 33/28 (2006.01)

Patent

CA 1217659

21 ABSTRACT OF THE DISCLOSURE A bore hole hydraulics simulator for drilling fluid has a pump for flowing the drilling fluid 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. The first volume is a substantially cylindrical passageway to simulate a bore hole, having within it a rod-like member simulating a drill string. The partition is a sleeve-like insert located adjacent the rod-like member. The second volume is a chamber surrounding the insert. The rod-like member includes a device for measuring the thickness of a cake buildup on the sleeve-like insert within the passageway. The output of the pump can be adjusted in response to measurements of cake thickness, in order to maintain a substantially constant shear rate past the cake.

464105

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