Global Patent Index - EP 0571257 B1

EP 0571257 B1 19970305 - Process for the treatment and the transport of natural gas coming from a well

Title (en)

Process for the treatment and the transport of natural gas coming from a well

Title (de)

Verfahren zur Behandlung und zum Transport von Erdgas aus einer Förderbohrung

Title (fr)

Procédé pour le traitement et le transport d'un gaz naturel sortant d'un puits de gaz

Publication

EP 0571257 B1 19970305 (FR)

Application

EP 93401254 A 19930514

Priority

FR 9206261 A 19920520

Abstract (en)

[origin: EP0571257A1] A method is described for treating and transporting a natural gas leaving a gas well in the direction of a receiving and treatment terminal. According to the method of the invention, the gas rising to the surface (1) is placed in contact, in a zone G1 which is the well itself, with a liquid phase coming at least in part from a recycling stage (4) and containing water and at least one antihydrate additive and/or at least one anticorrosion additive which is at least partly water-miscible and which vaporises in the pure state or in azeotropic form; the gaseous phase, charged with additive, is transported into a pipe (3,5), it is cooled at E1, at B1 a gaseous phase is separated from the non-condensed gas which is collected by a pipe (10) and the condensed aqueous phase, charged with additive, is recycled via the line (9,4) into the contact zone G1. Application to the exploitation and transportation of natural gas, particularly over long distances. <IMAGE>

IPC 1-7

E21B 43/34

IPC 8 full level

C10L 3/06 (2006.01); E21B 37/06 (2006.01); E21B 41/02 (2006.01); E21B 43/12 (2006.01); E21B 43/34 (2006.01); E21B 43/40 (2006.01); F17D 1/02 (2006.01)

CPC (source: EP US)

E21B 37/06 (2013.01 - EP US); E21B 41/02 (2013.01 - EP US); E21B 43/40 (2013.01 - EP US); Y10S 166/902 (2013.01 - EP US)

Designated contracting state (EPC)

DE GB IT NL

DOCDB simple family (publication)

EP 0571257 A1 19931124; EP 0571257 B1 19970305; AU 3866293 A 19931125; AU 659552 B2 19950518; CA 2096714 A1 19931121; CA 2096714 C 20050705; DE 69308379 D1 19970410; DE 69308379 T2 19970828; FR 2691503 A1 19931126; FR 2691503 B1 19970725; JP 3275114 B2 20020415; JP H0650080 A 19940222; MY 108797 A 19961130; NO 306176 B1 19990927; NO 931796 D0 19930518; NO 931796 L 19931122; US 5351756 A 19941004

DOCDB simple family (application)

EP 93401254 A 19930514; AU 3866293 A 19930519; CA 2096714 A 19930520; DE 69308379 T 19930514; FR 9206261 A 19920520; JP 11748093 A 19930520; MY PI19930917 A 19930519; NO 931796 A 19930518; US 6391293 A 19930520