L. L. Gadeken and H. D. Smith, Jr., "TracerScan*-A Spectroscopy Technique for Determining the Distribution of Multiple Radioactive Tracers in Downhole Operations." Paper ZZ, 27th, Annual SPWLA Symposium, Houston, Texas (Jun. 1986) pp. 1-15. |
H. D. Smith, Jr., C. A. Robbins, D. M. Arnold, L. L. Gadeken and J. G. Deaton, "A Multi-Function Compensated Spectral Natural Gamma Ray Logging System." SPE Paper 12050, 58th Annual Technical Conference and Exhibition, San Francisco, California (Oct. 1983), pp. 1-15. |