US PATENT SUBCLASS 166 / 255.1
.~.~ Determining position of object in well

Current as of: June, 1999
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166 /   HD   WELLS

244.1  DF  PROCESSES {39}
250.01  DF  .~ With indicating, testing, measuring or locating {21}
255.1.~.~ Determining position of object in well {1}
255.2  DF  .~.~.~> Tool orienting {1}

DEFINITION

Classification: 166/255.1

Determining position of object in well:

(under subclass 250.01) A process in which the location of a well completion device in the well is ascertained.

(1) Note. The object must be something other than an instrument used in a process for ascertaining the position of something.

(2) Note. A fluid or a formless substance is not considered an object under this definition. A casing or tubing, however, is considered an object.

(3) Note. For classification in this subclass some special step for directly determining the position of an object must be recited in a claim since the position of objects is generally known in well processes or can be deduced from other information if so desired.

SEE OR SEARCH THIS CLASS, SUBCLASS:

250.13, for locating stuck pipe.

SEE OR SEARCH CLASS

175, Boring or Penetrating the Earth, 4.51, for subject matter relating to well perforating by a bullet or shaped charge of an explosive combined with position orienting or indicating and subclass 45 for boring tool position, direction, or inclination measuring or indicating within the bore.