... the norm onshore. The case for high pressure gas-lift to eliminate the need for problematic gas-lift valves is made, as technology and conditions exist to implement it now, as has been done offshore. The concept of High Pressure Gas-lift (herein after referred to as HPGL), as discussed in SPE 14347...

... instability conservation equation outlet liquid flow rate heat transfer model Minami pipeline transient model temperature profile slug flow flow rate gas-lift valve heat transfer equation Introduction Two-phase pipelines are usually planned to operate in the steady-state condition. However...

... years of production, it is common to encounter significantly different reservoir and well conditions than were initially predicted at the time of the original well completion and artificial-lift designs. Gas-lift is not always required until later in the well life. While some gas-lift valves have...

.... Reservoir Surveillance production monitoring production control real time system injector Koelman gas-lift valve Upstream Oil & Gas frequency band producer molenaar Technology Conference flow monitoring production logging icv application information oil producer das society...

... Reservoir Surveillance Upstream Oil & Gas DTS trace Leak continuous-flow gas-lift operation society of petroleum engineers injection profile gas-lift valve temperature trace completion integrity application Remedial Action operation temperature sensor valve Introduction Capturing...

... Abstract Heading (flow instability) is a common problem in the operation of continuous flow gas-lift wells. One of the key elements, which affect the gas-lift stability, is the operating valve. Several operating gas-lift valve designs are currently used in practice. A new valve design, based...

... injection valve and the bottomhole gas-lift valve. The expanded criteria are examined using field data. The criteria clearly show the relative importance of the different factors involved, and thereby help to assure stable flow conditions at the design phase or to decide what actions to take in order...

... Abstract The main objectives of this study were to test three one-inch nitrogen-charged gas-lift valves from different manufacturers and to develop or modify existing procedures to accurately predict valve flow performance. During the testing program more than 360 air flow performance curves...

... artificial lift system production control gas-lift valve nitrogen stem displacement injection pressure flow rate sensitivity production monitoring artificial intelligence displacement nozzle exit pressure valve effective pressure load rate flow region bellow pressure profile...

..., the importance of using the actual gas-lift valve performance relationship rather than the Thornhill Craver performance relationship rather than the Thornhill Craver choke equation is addressed. It is shown that utilization of the Thornhill Craver choke equation can result in serious design errors. The two most...