US PATENT SUBCLASS 340 / 854.1
.~ With position or depth recording (e.g., line payout, equipment locator, etc.)

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

853.1  DF  WELLBORE TELEMETERING OR CONTROL (E.G., SUBSURFACE TOOL GUIDANCE, DATA TRANSFER, ETC.) {14}
854.1.~ With position or depth recording (e.g., line payout, equipment locator, etc.) {1}
854.2  DF  .~.~> Location of collar or stuck tool

DEFINITION

Classification: 340/854.1

With position or depth recording (e.g., line payout, equipment locater, etc.):

(under subclass 853.1) Subject matter wherein the depth or location in the wellbore of specified equipment in the wellbore is recorded or utilized to control a system operation.

(1) Note. This subclass includes location of a sonde or other wellbore related equipment.