(under the class definition) Devices comprising (1) a means pressed against the side wall of a prepositioned well conduit so as to form a seal around a port for passage of fluid or (2) a means penetrating the earthen side wall of the well bore so as to provide a passage for fluid between a tubular member in the well and the formation.
(1) Note. The port is often formed in a packer sealing means. Separate packers which, broadly considered, form ports between them are not included. See subclass 191 and the subclasses there noted for such devices.
SEE OR SEARCH THIS CLASS, SUBCLASS:
223, for nozzles which are projected against a conduit structure but have no sealing means.
SEE OR SEARCH CLASS
73, Measuring and Testing,
152.26, for a sealing detail in an apparatus for fluid flow measuring or fluid analysis combined with sampling wherein the test is not purely electrical or purely magnetic. 175, Boring or Penetrating the Earth,
2+, 77, 78, and 79+ for means insertable in an inaccessible hole (e.g., well bore) to bore into a sidewall thereof.
