Experimental Basis For a New Borehole Corrected Pulsed Neutron Capture Logging System (TMD)

$2.00

Ward E. Schultz
Harry D. Smith, Jr.
Jerry L. Verbout
James R. Bridges
Welex,
Gilles H. Garcia,
Consultant

SPWLA TWENTY-FOURTH ANNUAL LOGGING SYMPOSIUM, JUNE 27-30, 1983

1983

Abstract

Pulsed neutron capture logs have been very useful for estimating saline water saturation, particularly in cased formations. Gamma rays from neutron capture reactions are detected following each burst of neutrons emitted by a 14 MeV neutron generator. The rate of change in the number of capture gamma rays is directly related to the capture cross section (1) of elements in the vicinity of the logging tool.