US PATENT SUBCLASS 166 / 257
.~.~ Injecting while producing by in situ combustion from same well

Current as of: June, 1999
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166 /   HD   WELLS

244.1  DF  PROCESSES {39}
256  DF  .~ In situ combustion {6}
257.~.~ Injecting while producing by in situ combustion from same well

DEFINITION

Classification: 166/257

(under subclass 256) A process in which material found in the earth is produced from the top of a well due to in situ combustion taking place in the pores of the earth, while at the same time material is being injected into the pores of the earth from the same well.