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. 22, 1980
Filed:
May. 12, 1978
Applicant:
Inventor:
Thomas L Stewart, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ; G01N / ;
U.S. Cl.
CPC ...
210 78 ; 73 6 / ; 324 / ; 324 / ;
Abstract
To improve both the accuracy and reliability of capacitance-type basic sediment and water (BS&W) recorders, it is desirable to provide a clean, dry reference stream whose dielectric constant can be compared to that of a wet stream. This compensates for any variation in the physical composition of the fluid (e.g., pipeline crude oil) which might otherwise yield a false value for the BS&W content. In accordance with the present invention, the dry reference stream is provided by filtration and reverse centrifugation of part of the wet stream.