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:
May. 19, 1992
Filed:
Dec. 28, 1990
Applicant:
Inventor:
Henri Cholet, Le Pecq, FR;
Assignee:
Institut Francais de Petrole, Rueil Malmaison, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
1661055 ; 166369 ;
Abstract
A device is disclosed for separating a mixture of free gas and liquid at the intake of a pump connected to a bottom end of a tubular column at the bottom of a drilled well. The pump is connected to the tubular column by an intermediate production tube and is introduced into a fluid intake device a bottom end of which is closed and a top end comprises fluid introduction orifices, said pump being placed inside said intake device, close to its bottom end, said intake device comprising, close to its bottom end, a device forming at least a check valve.