US PATENT SUBCLASS 166 / 177.5
HYDRAULIC FRACTURING DEVICE


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



166 /   HD   WELLS

177.5HYDRAULIC FRACTURING DEVICE


DEFINITION

Classification: 166/177.5

Hydraulic fracturing device:

(under the class definition) Apparatus comprising specific structure for placing a liquid to erode a formation to increase permeability.

SEE OR SEARCH THIS CLASS, SUBCLASS:

101, for devices comprising a packer or plug and a pump or plunger means exerting outward fluid pressure on a conduit surrounding the packer or plug beneath it or between a pair of packers or plugs.

308, for a process of fracturing a formation.

SEE OR SEARCH CLASS

102, Ammunition and Explosives,

301+, for well torpedoes.

299, Mining or In Situ Disintegration of Hard Material, 20+, for an expansible breaking down device for breaking up hard material in situ.