Agitating – By injecting gas into mixing chamber
Patent
1987-04-22
1989-01-10
Hornsby, Harvey C.
Agitating
By injecting gas into mixing chamber
366177, 366341, B01F 1302
Patent
active
047970030
ABSTRACT:
A high pressure foam slurry generator, including a source of slurry, a source of gas, and a means for combining the slurry and the gas, which is usually nitrogen. A housing receiving the slurry and the gas has a connector with multiple channels. One channel for the nitrogen gas acts as an inlet and has a bushing with a series of multiple holes through which the nitrogen gas is broken into a plurality of high velocity streams. The slurry with a foamer agent added combines at right angles with the nitrogen gas and is formed before being pumped through a tubing string into a gas or oil well. Also included herein is a process for making foamed slurry by pumping a slurry capable of being foamed to a housing, pumping nitrogen to the same housing, separating the nitrogen into a plurality of high velocity streams, and combining the streams and the slurry in a foaming action. Either the slurry or the nitrogen may have two separate streams entering the housing as right angles to each other. All of the streams are normally combined at right angles to obtain the proper amount of foaming action.
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Cameron Donald C.
Hoover Mat
Dowell Schlumberger Incorporated
Hornsby Harvey C.
Littlefield Stephen A.
Poffenberger J. Dwight
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