EP 2735697 A1 20140528 - Method and system for inhibiting contact of a corrosive displacement gas with corrosion prone natural gas production facilities
Title (en)
Method and system for inhibiting contact of a corrosive displacement gas with corrosion prone natural gas production facilities
Title (de)
Verfahren und System zur Verhinderung des Kontakts eines korrosiven Verdrängergases mit korrosionsanfälligen Erdgasproduktionseinrichtungen
Title (fr)
Procédé et système permettant d'inhiber le contact d'un gaz de déplacement corrosif dans des installations de production de gaz naturel
Publication
Application
Priority
EP 12194473 A 20121127
Abstract (en)
Natural gas production from an underground natural gas containing formation(20) is enhanced by initially injecting into the formation(20) a non-corrosive Nitrogen (N 2 ) containing displacement gas followed by injecting into the formation a corrosive CO 2 containing displacement gas such that the non corrosive displacement gas provides a barrier that inhibits the corrosive displacement gas to reach corrosion prone natural gas production facilities. Subsequent injection of non-corrosive and corrosive displacement gases reduces the cost of displacement gas injection, inhibits corrosion of natural gas production facilities, and reduces CO 2 emission into the atmosphere.
IPC 8 full level
E21B 43/16 (2006.01)
CPC (source: EP)
E21B 43/164 (2013.01); E21B 43/166 (2013.01)
Citation (applicant)
- US 4765407 A 19880823 - YUVANCIC JAMES A [US]
- WO 2012021282 A1 20120216 - CONOCOPHILLIPS CO [US], et al
- CA 2568358 A1 20080517 - MAGUIRE JAMES Q [US]
Citation (search report)
- [X] US 5099921 A 19920331 - PURI RAJEN [US], et al
- [XY] US 4393936 A 19830719 - JOSENDAL VIRGIL A
- [Y] WO 8704420 A1 19870730 - NORSK ENERGI [NO]
- [A] WO 03018958 A1 20030306 - STATOIL ASA [NO], et al
- [A] WO 2008087154 A1 20080724 - AIR LIQUIDE [FR]
- [A] US 2011146978 A1 20110623 - PERLMAN ANDREW [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DOCDB simple family (application)
EP 12194473 A 20121127