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:
Dec. 29, 1992
Filed:
Apr. 27, 1990
Anthony F Veneruso, Richmond, TX (US);
Andrew Hunt, Royston, GB;
Schlumberger Technology Corporation, Houston, TX (US);
Abstract
A method for more accurately measuring small changes in flowrate, and measuring low flowrates, of a well fluid in a pipe, adapted to be disposed in a borehole, includes inserting a choke in a constricted section of the pipe and placing a differential pressure gauge across the constricted section so as to measure the pressure of the fluid in the constricted section. The presence of the centerbody in the constricted section of the pipe decreases the pressure of the fluid in an annulus region around the choke and converts an otherwise small well fluid pressure change in the constricted section into a large pressure change in the annulus region, the large pressure change being easily measurable by the differential pressure gauge.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile