Method And Apparatus For Automatically Testing High Pressure And High Temperature Sedimentation Of Slurries
AssigneeHalliburton Energy Services, Inc.
InventorsDale E. Jamison, Robert J. Murphy
Life of this patent
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Abstract
A method and apparatus for automatically testing high pressure and high temperature sedimentation of slurries is described. The method includes pumping a sample drilling fluid into a test cell. The sample drilling fluid may be subjected to a pre-determined pressure and a pre-determined temperature for a pre-determined period of time. The test cell may also be oriented at non-vertical angle. The sample drilling fluid may be pumped out of the test cell and the density of the sample drilling fluid automatically measured relative to a displaced fluid volume of the sample drilling fluid.
Claims12
A method for testing sag properties of drilling fluids, comprising:
- pumping a sample drilling fluid into a test cell;
- subjecting the sample drilling fluid within the test cell to a pre-determined pressure and a pre-determined temperature for a pre-determined period of time;
- pumping the sample drilling fluid out of the test cell;
- and
- measuring a density of the sample drilling fluid relative to a displaced fluid volume of the sample drilling fluid.
A test cell for measuring sag properties of a sample drilling fluid, comprising:
- a first tubular portion, wherein the first tubular portion defines a top opening of the test cell;
- a second tubular portion aligned with the first tubular portion, wherein the first tubular portion defines a bottom opening of the test cell;
- a tee fitting disposed between the first tubular portion and the second tubular portion, wherein the tee fitting defines a side port, wherein the first tubular portion, the second tubular portion, and the third tubular portion define a single test chamber;
- and
- an isolation piston disposed within the test chamber.
Dependencies are inferred from the claim text.