Downhole recorder for use in wells
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 28, 1987
Grant Date -
N/A
app pub date -
Jun 4, 1985
filing date -
Jun 4, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Method and apparatus for recording data downhole in a borehole. A recorder having a data memory is lowered into a data recording position in the borehole. A signal is transmitted downhole into the borehole and the recorder is initiated to begin recording data at an ascertainable memory location of the data memory in response to a downhole stimulus produced in response to the transmitted signal. Also, a downhole recorder for use in detecting the firing of an explosive device downhole in a borehole is provided. After an attempt is made to actuate the explosive device, the recorder is retrieved to the surface where the contents of its memory are analyzed to determine whether the explosive device has been actuated.
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