US PATENT SUBCLASS 166 / 372
.~.~ By fluid lift

Current as of: June, 1999
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166 /   HD   WELLS

244.1  DF  PROCESSES {39}
369  DF  .~ Producing the well {3}
372.~.~ By fluid lift

DEFINITION

Classification: 166/372

By fluid lift:

(under subclass 369) Process wherein a motive fluid is used to expel the well fluid from the well.

SEE OR SEARCH THIS CLASS, SUBCLASS:

256+, for a process of producing a well comprising in situ combustion.

268+, for a process of producing a well by forcing fluid into an adjacent well.

309, for a process including a step of producing a foam or gas in the well by a foam or gas making material.