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US 3,973,930 AGranted
Drilling mud degasser apparatus and method
OwnerHarry L. Burgessinventor
Life of this patent
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OwnerHarry L. Burgessinventor
Estimating the term…
A drilling mud degasser apparatus which has only a single moving part, namely, a unitary, hollow body rotatable within an open bottom casing, and the impeller of a suction pump connected to the interior of the rotor body. The casing and rotor are submerged in a pond of mud returned from a well or connected in a return mud line such that gas-cut mud entering the bottom of the rotor body is centrifugally thrown upwardly and outwardly to cause the liquid and/or sand components to travel up the wall of the rotor body and be discharged through outlet openings at the top of the body wall. Concurrently, released gases are drawn through inner gas outlets, at the top of the rotor body into the impeller housing and thence discharged. Differential discharge of sand and liquid components by centrifugal action may be provided as may a flotation collar for insuring uniform submersion of the casing beneath the liquid level.
A degasser apparatus comprising a casing, a hollow (motor) rotor body rotatably mounted in said casing and having a fluid inlet and first and second fluid outlets, respectively, in inner and outer parts of said body, power means for rotating said body to draw fluid into said body and to discharge lighter and heavier constituents of said fluid, respectively, through said outlets by centrifugal action, and suction means connected to said first outlet for assisting in separation of said lighter from said heavier constituents, said suction means comprising a pump mounted on said casing and communicating with said first outlet.
A degasser apparatus for gas-cut drilling mud comprising
A degasser apparatus for gas and liquid mixture comprising a gas and liquid separating body, flotation means incorporated with said body and adapted to support said body in substantially uniform relationship with respect to the free surface of a body of the mixture.
A degasser apparatus comprising a casing having a top wall, a hollow rotor body rotatably mounted in said casing and having a bottom inlet for gas-cut fluid and upper outlet means, suction pump means comprising a plurality of centrifugal pump housings and enclosed impellers serially superposed on said casing top wall with the inlet of each housing connected to the next upstream pump outlet and the inlet of the first of the series connected to the interior of said rotor body, shaft means connecting all of said impellers and said rotor body for joint actuation thereof, and motor means mounted on the last of said housings in the series and opertively connected to said shaft means.
A degasser device comprising a casing having an inlet for gas-cut fluid, a hollow body rotatably mounted in said casing, a blower mounted on said casing with an impeller a toroidal housing and an inlet communicating with the interior of said body for applying suction thereto, said body having an inlet opening in its lower part for gas-cut fluid and outlet means at its periphery, a drive shaft jointly connecting said blower and said hollow body, and power means operatively connected to said shaft for rotating said impeller and said body as a unit for acting on the fluid centrifugally and by suction to draw gas-cut liquid through said inlet opening and discharge the same through said outlet means, while separating gas from said fluid.
The method of separating gas and liquid comprising the steps of directing the liquid into the lower part of a hollow rotor body and over a sharp edge therein, rotating the body to centrifugally discharge solid and/or liquid components outwardly, and applying suction to the interior of the body for releasing gases from the liquid and discharging released gases.
A degasser apparatus comprising a hollow separator body having lower and upper openings, respectively, for admitting gas-cut liquid into said body and for discharging gas and purged liquid therefrom, and flotation means for supporting said hollow body in a container of gas-cut liquid having a free surface with said lower opening substantially uniformly immersed with respect to said free surface.
Dependencies are inferred from the claim text.