Measuring and testing – Borehole or drilling – Downhole test
Patent
1999-03-08
2000-11-28
Williams, Hezron
Measuring and testing
Borehole or drilling
Downhole test
16625001, 33544, E21B 4700, G01B 100
Patent
active
061519618
ABSTRACT:
A tool for initiating a downhole function in a subsurface well, such as a cased well. The tool has memory adapted to store a well-specific reference pattern of one or more downhole well characteristics as a function of position along the well, one or more sensors responsive to the downhole well characteristics, and a clocked processor. The processor is adapted to receive well characteristic signals from the sensors, determine, from the signals and the reference pattern in memory, the position of the tool along the well, and automatically initiate a downhole function at a preprogrammed position along the well while the tool is moved at a substantially constant rate along the well. The tool may be configured in a string of tools for performing multiple downhole functions. In some embodiments the reference pattern is the known spacing of discrete downhole features, such as casing collars. In some other embodiments the reference pattern is a log of a geophysical parameter, such as a natural gamma log. Methods of use are also disclosed.
REFERENCES:
patent: 4697650 (1987-10-01), Fontenot
patent: 5581024 (1996-12-01), Meyer, Jr. et al.
Wheeler et al., "Completion Technology: New Slickline Tool Simplifies Rigless Completions", (no date).
Babineau James W.
Henderson Steven W.
Huber Klaus B.
Politzer Jay L.
Schlumberger Technology Corporation
Williams Hezron
LandOfFree
Downhole depth correlation does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Downhole depth correlation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Downhole depth correlation will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1713482