DRILLING COLLISION AVOIDANCE APPARATUS, METHODS, AND SYSTEMS

IN SOME EMBODIMENTS, APPARATUS (300) AND SYSTEMS, AS WELL AS METHODS, MAY OPERATE TO LAUNCH A SET OF CURRENTS INTO A CORRESPONDING SET OF EXISTING WELL CASINGS; MONITOR, IN A WELL UNDER CONSTRUCTION, CHANGES IN AT LEAST ONE OF A MAGNETIC FIELD OR AN ELECTRIC FIELD PERTURBED BY THE SET OF CURRENTS AF...

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Bibliographic Details
Main Authors LYLE, DAVID, HAY, RICHARD THOMAS, UPSHALL, MAC, RODNEY, PAUL F
Format Patent
LanguageEnglish
Published 27.02.2015
Subjects
DETECTING MASSES OR OBJECTS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
MEASURING
PHYSICS
TESTING
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Summary:IN SOME EMBODIMENTS, APPARATUS (300) AND SYSTEMS, AS WELL AS METHODS, MAY OPERATE TO LAUNCH A SET OF CURRENTS INTO A CORRESPONDING SET OF EXISTING WELL CASINGS; MONITOR, IN A WELL UNDER CONSTRUCTION, CHANGES IN AT LEAST ONE OF A MAGNETIC FIELD OR AN ELECTRIC FIELD PERTURBED BY THE SET OF CURRENTS AFTER EACH ONE OF THE SET IS LAUNCHED; AND DETERMINE A LOCATION OF THE WELL UNDER CONSTRUCTION IN RELATION TO THE SET OF EXISTING WELL CASINGS. IN SOME EMBODIMENTS, THE ACTIVITIES INCLUDE INDUCING CURRENT INTO A DRILLSTRING LOCATED IN A WELL UNDER CONSTRUCTION; MONITORING, AT A SET OF EXISTING WELL CASINGS, CHANGES IN AT LEAST ONE OF A MAGNETIC FIELD OR AN ELECTRIC FIELD PERTURBED BY THE CURRENT AFTER THE CURRENT IS INDUCED; AND DETERMINING A LOCATION OF THE WELL UNDER CONSTRUCTION IN RELATION TO THE SET OF EXISTING WELL CASINGS. ADDITIONAL APPARATUS (300), SYSTEMS, AND METHODS ARE DISCLOSED. THE MOST ILLUSTRATIVE DRAWING IS
Bibliography:Application Number: MY2011PI05911