US 7,482,579 B2
Method and apparatus for high resolution gamma ray measurements
W. Allen Gilchrist, Jr., Houston, Tex. (US)
Assigned to Baker Hughes Incorporated, Houston, Tex. (US)
Filed on Mar. 15, 2007, as Appl. No. 11/686,442.
Prior Publication US 2008/0224031 A1, Sep. 18, 2008
Int. Cl. G01V 5/06 (2006.01)
U.S. Cl. 250—265  [250/266; 250/264] 22 Claims
OG exemplary drawing
 
1. A method for measuring radiation, the method comprising:
selecting at least two radiation detectors, each detector comprising a spatial resolution that differs from the spatial resolution of the other detectors wherein the spatial resolution provides for resolving a change in radiation as each detector traverses a borehole;
measuring the radiation with the detectors; and
combining a response from at least two of the detectors to produce a composite response exhibiting a spatial resolution for resolving the change in radiation as the detectors traverse the borehole.