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:
Jan. 21, 1992
Filed:
Feb. 04, 1991
Ronnie J Buchanan, Duncan, OK (US);
Halliburton Company, Duncan, OK (US);
Abstract
A vessel for receiving a test sample of fluid whose water content is to be determined and a thermal neutron sensor are retained in cavities of a biological radioactivity shield. The cavities are lined with a material which blocks external thermal neutrons outside the test sample from being detected by the thermal neutron sensor. Another cavity, having an inner end terminated by the lining material, receives a source of fast neutrons which are to be emitted through the liner into the test sample to become thermal neutrons if they interact with hydrogen within the test sample. The latter thermal neutrons which are backscattered to the sensor are detected, and in response an electrical signal encoded to represent the count of detected thermal neutrons is generated to indicate a measure of the water content of the test sample.