Patent · US Active

Apparatus for controlling injection pressure in offshore enhanced oil recovery

US9328589B2 · kind B2 · utility

0Cited by

5References

14Claims

0Family size

Assignee

S.P.C.M. SA · FR

Inventors

Pascal Remy · Freudenberg, DE
Emmanuel Pich · Saint-Étienne, FR

Key dates

Filing date	Oct 22, 2014
Grant date	May 3, 2016
Priority date	—
Expiry date	Oct 22, 2034

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B34/04
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

An apparatus for controlling the injection pressure of an aqueous polymer solution in a subsea oil wellhead, includes a linear pressure reducer in the form of a tube connected in series to the main injection line that is capable of absorbing the majority of the pressure drop and a choke that is capable of being regulated in order to enable a pressure control between 0 and 10 bar. Also, a process of offshore enhanced oil recovery by injection of an aqueous polymer solution uses the apparatus.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.