US Patent 9777545 Well tractor
Patent 9777545 was granted and assigned to Halliburton on October, 2017 by the United States Patent and Trademark Office.
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A method for operating a well tractor is presented. The method involves running a well tractor coupled to a wireline into a wellbore and supplying an amount of electric power to the well tractor to operate the well tractor at a first speed to urge the wireline through the wellbore at a first force. A variable gear ratio transmission of the well tractor is adjusted and an amount of electric power is supplied to the well tractor to operate the well tractor at a second speed different than the first speed to urge the wireline through the wellbore at a second force different than the first force based on adjusting the variable gear ratio transmission.
US Patent 09777545 Well tractor US Patent 9777545 Well tractor
US Patent 09777545 Well tractor
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