EP 0918918 A1 19990602 - VARIABLE ORIFICE GAS LIFT VALVE FOR HIGH FLOW RATES WITH DETACHABLE POWER SOURCE AND METHOD OF USING
Title (en)
VARIABLE ORIFICE GAS LIFT VALVE FOR HIGH FLOW RATES WITH DETACHABLE POWER SOURCE AND METHOD OF USING
Title (de)
LUFTHEBEVENTIL MIT VARIABLER öFFNUNG FüR HOHEN DURCHSATZ, AUSGERüSTET MIT EINER AUSWECHSELBAREN ENERGIEQUELLE UND ANWENDUNGSVERFAHREN
Title (fr)
SOUPAPE DE GAS-LIFT A ORIFICE VARIABLE POUR DEBITS ELEVES MUNIE D'UNE SOURCE D'ENERGIE AMOVIBLE ET PROCEDE D'UTILISATION
Publication
Application
Priority
- US 9714431 W 19970815
- US 2396596 P 19960815
Abstract (en)
[origin: WO9806928A1] The present invention is a surface controlled gas lift valve designed for high flow rates and used in a subterranean well, comprising: a valve for sealable insertion in a mandrel, having a variable orifice which alternatively permits, prohibits, or throttles fluid flow into the valve, and a detachable and/or remote actuator are disclosed. Methods of actuating the valve include electro-hydraulic, hydraulic, and pneumo-hydraulic, while sensors relay the position of the variable orifice and critical fluid pressures to a panel on the surface. The orifice valve and the actuator while operatively connected, may be separately installed in or retrieved from by either wireline or coiled tubing intervention methods.
IPC 1-7
IPC 8 full level
E21B 34/06 (2006.01); E21B 43/12 (2006.01)
CPC (source: EP US)
E21B 34/066 (2013.01 - EP); E21B 43/1235 (2020.05 - EP US)
Citation (search report)
See references of WO 9806928A1
Designated contracting state (EPC)
FR GB
DOCDB simple family (publication)
WO 9806928 A1 19980219; AU 3916297 A 19980306; CA 2263486 A1 19980219; CA 2263486 C 20050426; EP 0918918 A1 19990602; EP 0918918 B1 20061018; NO 326119 B1 20080929; NO 990677 D0 19990212; NO 990677 L 19990414
DOCDB simple family (application)
US 9714431 W 19970815; AU 3916297 A 19970815; CA 2263486 A 19970815; EP 97936508 A 19970815; NO 990677 A 19990212