Measuring and testing – Simulated environment
Patent
1989-11-13
1991-05-28
Raevis, Robert
Measuring and testing
Simulated environment
E21B 43267
Patent
active
050183966
ABSTRACT:
A cell assembly for determining the conductivity and permability of proppants in simulated subterranean formations comprising a plurality of vertically stacked cell units interconnected such that upon application of a compressive force the compressive force is transmitted equally throughout each of the cell units. Each of the cell units comprises a cell body member having a passageway extending therethrough; a lower piston connected to the cell body member such that one end thereof extends a selected distance into a lower portion of the passageway and an opposed second end extends outwardly therefrom for reciprocal movement within a cell body member of a second cell unit placed therebelow; and an upper piston member positionable in an upper portion of the passageway for reciprocal movement therein in response to force directed thereon, the upper piston member functioning as the lower piston member for a cell unit disposed thereabove. A plurality of shims are disposed within the passageway to define a proppant cavity therebetween. The upper and lower portions of each of the upper and lower piston members are provided with a groove about the peripheral edge portion adapted to receive a square ring such that a fluid tight seal is formed with the body member. A method and apparatus for conditioning a fracturing fluid to simulate downhole conditions are also disclosed.
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Burdick Glen M.
McCarthy Bill D.
Raevis Robert
Stim Lab, Inc.
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