Measuring and testing – Borehole or drilling – Downhole test
Patent
1982-12-30
1984-07-10
Birmiel, Howard A.
Measuring and testing
Borehole or drilling
Downhole test
E21B 4910
Patent
active
044585284
ABSTRACT:
An improved instrument for measuring the relative "stickiness" of a drilling mud under well drilling condition is disclosed. It features a filtration member comprised of the material of the formation within which the well is drilled. After formation of a filter cake on the surface of the stone filtration member, a plunger is juxtaposed to the stone filtration member and the amount of torque required to rotate the plunger with respect thereto after juxtaposition for a fixed period of time is measured, to provide a relative indication of the adhesion of the plunger to the stone.
Roper Wilbur F.
Slover V. Roy
Williams Fletcher J.
Birmiel Howard A.
Gilman Michael G.
McKillop Alexander J.
Mobil Oil Corporation
Speciale Charles J.
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