US PATENT SUBCLASS 523 / 130
.~.~ Composition for plugging pores in wells or other subterranean formations; consolidating formations in wells or cementing a well or process of preparing


Current as of: June, 1999
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523 /   HD   SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES

*  DD  SYNTHETIC RESINS (Class 520, Subclass 1) {1}
1  DF  .~ PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF {71}
130.~.~ Composition for plugging pores in wells or other subterranean formations; consolidating formations in wells or cementing a well or process of preparing {1}
131  DF  .~.~.~> Composition for treating unconsolidated or loose strata, e.g., sand consolidation, etc.


DEFINITION

Classification: 523/130

Composition for plugging pores in wells or other subterranean formations; consolidating formations in wells or cementing a well or process of preparing:

(under subclass 1) Subject matter wherein a composition having utility in sealing fissures or crevices in stone, rock, or other subterranean formations, or in consolidating a formation in a well, or in cementing a well is claimed or solely disclosed or to processes of preparation thereof.

(1) Note. For an explanation of patent placement referring to claimed or solely disclosed, see (in the class definition) the section of SEARCH THIS CLASS, SUBCLASS that refers to this subclass.

(2) Note. Compositions used to produce a bond between the casing and the well wall are considered as well cements and are therefore classified herein.

(3) Note. A composition which is not solely disclosed as a composition for plugging pores in wells or other substerranean formations, or for consolidating formations in wells, or cementing a well, is placed as appropriate in classes 523 and 524 hereinbelow.

SEE OR SEARCH CLASS

166, Wells,

244.1+, for processes with significantly claimed steps of well treating or operating which involves more than the mere use of such compositions; or subclasses 285+ for methods of cementing, plugging, or consolidating the earth around a well bore. 175, Boring or Penetrating the Earth,

65+, for processes of utilizing liquid, plastic, or fluent compositions to penetrate the earth's surface.

405, Hydraulic and Earth Engineering,

263+, for a method of applying a composition directly to an earth formation to fill a subterranean cavity within the formation.

507, Earth Boring, Well Treating, and Oil Field Chemistry,

100+, for liquid, plastic, or fluent compositions specialized and designed for use in earth boring or well fracturing, e.g., well drilling mud, etc., and subclasses 200+ for earth or well treating compositions which are other than those used for plugging the pores of the well, for consolidating a formation in a well, or for cementing a well.