Pumping sub for well logging tools
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
N/A
Issued Date -
Jul 5, 2001
app pub date -
Dec 28, 2000
filing date -
Dec 30, 1999
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The pumping sub comprises first and second inflatable bladders which are pressurized to inflate to accommodate various pipe diameters. Pressure relief value means is provided to assist in clearing obstructions within the pipe. The pumping sub acts as a parachute to slow the fall of a logging tool and enables the logging tool to be pumped up and down a drill pipe. FIG. 4
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