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I(4 N~AR WELL LOGGING ~ + 4 <br />4 <br />CQl <br />6 (I <br />GR <br />0 <br />G <br />GR~ <br />c <br />i <br />C <br />C <br />4.4.2. Pu{sed nee <br />This log is called a <br />(TDT). Fast neutrons <br />frequency of 1000 iml <br />either centered or not <br />4.4.2.1. Single-det <br />These sondes are <br />distance away (?3 cm <br />rays. The neutrons a <br />"population" of the <br />decreases exponential <br />Fig. 4.9. -Example of neutron-CNL and neutron-SNP logs. <br />(Sch(umberger document) <br />