US PATENT SUBCLASS 166 / 279
.~ Material placed in pores of formation to treat resident fluid flowing into well


Current as of: June, 1999
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166 /   HD   WELLS

244.1  DF  PROCESSES {39}
279.~ Material placed in pores of formation to treat resident fluid flowing into well


DEFINITION

Classification: 166/279

(under subclass 244.1) A process comprising placing material into the pores of the earth so that fluid which was in the

pores of the earth before the start of the process will be treated to acquire some beneficial property (e.g., corrosion inhibiting, etc.) as it flows past the material to enter the well.

(1) Note. Merely flushing out a material (e.g., an acid, etc.) which has been placed in the pores of a formation by flow of fluid from the pores of the earth without any desired beneficial property being given to the earth fluid does not come within this definition. Such processes are classified in subclass 305 and the subclasses there noted.