Remotely controlled maneuverable tool means and method for positioning the end of a pipe string in offshore well operations
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United States of America Patent
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Jul 29, 1980
Grant Date -
N/A
app pub date -
Apr 27, 1978
filing date -
Apr 27, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A maneuverable tool means for continuously maneuvering and controlling a pipe string end as it is lowered for engagement with a selected well part at the sea floor. The tool means comprises a body member attachable to the pipe string end, the body member carrying laterally directed thrust means; fluid pressure means in communication with the thrust means to impart thrust forces to the pipe string end and a remote control system for the fluid pressure means. The tool means also includes TV and sonar systems to sense the presence of adjacent objects as the pipe string end is lowered and to identify a well part with which the tool is to be cooperably associated. The tool means is provided with a lock means for temporarily retaining the tool means in a selected position in a guide funnel on a well template to facilitate installation of a guide line base means on the template.
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