05113937 is referenced by 15 patents and cites 5 patents.

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.

Title
Device for separating a mixture of free gas and liquid at the intake of a pump at the bottom of a drilled well
Application Number
7/635249
Publication Number
5113937
Application Date
December 28, 1990
Publication Date
May 19, 1992
Inventor
Henri Cholet
Le Pecq
FR
Agent
Antonelli Terry Stout & Kraus
Assignee
Institut Francais de Petrole
FR
IPC
E21B 43/38
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