The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 24, 1978
Filed:
Jun. 24, 1977
Applicant:
Inventors:
Harry D Smith, Jr, Houston, TX (US);
Robert W Pitts, Jr, Houston, TX (US);
Assignee:
Texaco Inc., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
G01V / ;
U.S. Cl.
CPC ...
250262 ; 250269 ; 250270 ;
Abstract
A system for measuring the thermal neutron lifetime of earth formations in the vicinity of a well borehole is disclosed. A downhole sonde is equipped with a pulsed neutron source, a thermal neutron or gamma ray detector and a pair of measurement electrodes. The measured salinity of the borehole fluid is used to optimize the delay time to the opening of measurement gating intervals for signals from the detector.