EP 3014056 A2 20160504 - A GAS LIFT SYSTEM AND A GAS LIFT METHOD
Title (en)
A GAS LIFT SYSTEM AND A GAS LIFT METHOD
Title (de)
GASAUFTRIEBSANLAGE UND GASAUFTRIEBSVERFAHREN
Title (fr)
SYSTÈME D'EXTRACTION AU GAZ ET PROCÉDÉ D'EXTRACTION AU GAZ
Publication
Application
Priority
- EP 13173704 A 20130626
- EP 2014063362 W 20140625
- EP 14732236 A 20140625
Abstract (en)
[origin: EP2818630A1] The present invention relates to a gas lift system (1) arranged in a well (65) having a top (10) and comprising a well fluid (11), the gas lift system comprising a casing (61) arranged in the borehole defining a surrounding annulus (62) , an opening (86) in the casing, and a pumping unit (12) for pumping gas (8) into the annulus, wherein the gas lift system further comprises a downhole tool (14) having a first end (15) nearest the top of the well and a second end (16), the downhole tool comprises a pump section (2) comprising a housing (20) comprising a chamber (201) having an axial extension(17), a plunger (23) sliding in the chamber and dividing the chamber into a first compartment (203) and a second compartment (202), a plunger rod (26)connected with the plunger, a chamber inlet channel (27) and a chamber outlet channel (21), the inlet channel and the outlet channel being in fluid communication with the second compartment, a sealing element (29) for isolating a first part (66) of the casing from a second part (67) of the casing, the first part and the inlet channel being in fluid communication with the opening. The invention also relates to a gas lift method.
IPC 8 full level
E21B 43/12 (2006.01)
CPC (source: EP US)
E21B 29/002 (2013.01 - US); E21B 43/123 (2013.01 - EP US)
Citation (search report)
See references of WO 2014207025A2
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)
EP 2818630 A1 20141231; AU 2014301129 A1 20160204; AU 2014301129 B2 20170413; BR 112015029935 A2 20170725; CA 2915322 A1 20141231; CN 105283630 A 20160127; EP 3014056 A2 20160504; MX 2015016972 A 20160425; RU 2016100240 A 20170731; US 2016153268 A1 20160602; WO 2014207025 A2 20141231; WO 2014207025 A3 20150618
DOCDB simple family (application)
EP 13173704 A 20130626; AU 2014301129 A 20140625; BR 112015029935 A 20140625; CA 2915322 A 20140625; CN 201480033546 A 20140625; EP 14732236 A 20140625; EP 2014063362 W 20140625; MX 2015016972 A 20140625; RU 2016100240 A 20140625; US 201414899282 A 20140625