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:
Sep. 10, 2013
Filed:
Jul. 04, 2005
Neil Griffiths, Rijswijk, NL;
James William Hall, Rijswijk, NL;
Neil Griffiths, Rijswijk, NL;
James William Hall, Rijswijk, NL;
Shell Oil Company, Houston, TX (US);
Abstract
A method for monitoring the pressure difference across an ESP comprises:—connecting the ESP () to a production tubing ()—providing the production tubing () with a side pocket () which comprises an opening ()—inserting a pressure sensor assembly () into the side packet () such that the opening () is located between a pair of annular seals ()—monitoring the pressure difference across the ESP () by inducing the sensor assembly to measure a pressure difference between an upper section of the side pocket which is in communication with the interior of the tubing and a middle section () of the interior of the side packet () which is located between the annular seals ().