GAS LIFT METHOD AND APPARATUS

• Main Authors: KNIGHT, MATTHEW, DALZELL, RICHARD ALASTAIR HOWARD, RAE, COLIN GORDON, LHUSSIER, QUENTIN, MURDOCH, EUAN
• Format: Patent
• Language: English; French
• Published: 17.11.2016
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

A method for injection of a lift gas into a wellbore production string comprises determining production pressure within the production string, and autonomously controlling a variable orifice gas lift valve in accordance with the determined production pressure, wherein the variable orifice gas lift v...