Long-Dome, 1-in. Conventional Gas Lift Valve

Applications

• Continuous gas-lift injection
• Production-performance enhancement

Features and Benefits

• Increases N2 dome volume 100%
• Allows gas-lift injection rate to be increased by up to 32%
• Lowers load rate by 38%
• Allows additional stem travel with less overburden pressure to open gas lift valve
• Reduces multi-pointing prevalent in 1-in. gas lift valves due to high load rate
• Larger dome volume allows for more controlled and prolonged single-point injections that can help reduce slugging
• Low-cost method of enhancing flow performance of gas lift valve 
• Compressor efficiency decreases CO₂ emissions

Tool Description

The Weatherford Long-Dome, Gas Lift Valve is an advanced version of the standard conventional 1-in. valve, designed to improve performance in gas lift applications. By extending the dome volume of the 1-in. valve, load rates are proven to be significantly reduced, thereby improving pressure management, which helps stabilize gas injections and reduces valve sensitivity to pressure fluctuations. The long-dome, one-inch conventional valve helps eliminate multi-pointing issues and improves production efficiency by allowing lower pressure differentials deeper in the well—all without having to reduce tubing size.

Compared to the 1.5-in. conventional valve, a proven better performing valve, the load rate of the 1-in. valve is much higher. Higher load rates increase risks with multi pointing and causes limitations with the valve fully opening. The goal of the long-dome, 1-in. conventional valve is to reduce load rates while performing similarly to the 1.5-in. valve and with the option to maintain larger tubing size while fitting inside smaller casing sizes.

C-1 and C-1LD Load Rate and Stem-Travel Testing*

C-1 and C-1LD Load Rate and Stem-Travel Testing*