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Title: Video borehole depth measuring system

A method is described of determining penetration of a drill string into the earth utilizing an element of a drilling rig, comprising: providing a target on the element of the drill rig; positioning a video camera at a remote location relative to the drill rig placing the video camera within a waterproof housing at the remote location; directing the video camera at the target; and tracking the movement of the target with the drill string into the earth.
Authors:
Publication Date:
OSTI Identifier:
5248026
Report Number(s):
US 4610005
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 19 Jun 1980
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 03 NATURAL GAS; 42 ENGINEERING; DRILL BITS; MONITORING; REMOTE SENSING; DRILL PIPES; WELL DRILLING; BOREHOLES; DEPTH; DRILLING RIGS; MWD SYSTEMS; NATURAL GAS WELLS; OIL WELLS; POSITIONING; TELEVISION CAMERAS; WATERPROOFING; CAMERAS; CAVITIES; DIMENSIONS; DRILLING; DRILLING EQUIPMENT; EQUIPMENT; PIPES; WELLS; 020300* - Petroleum- Drilling & Production; 030300 - Natural Gas- Drilling, Production, & Processing; 420206 - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)