1995年4月2日 · The variable-gradient design-line method is a widely accepted procedure for spacing gas-lift valves (GLV's) in a continuous-flow gas-lift (GL) installation. Injection-pressure-operated (IPO) and production-pressure-operated (PRO) GLV's can be used in a variable gradient designed installation.

•IPO Valve Operating Pressure Range –2,000 to 5,000 psi at Depth •Patented Edge-Welded High Pressure Balanced Bellows System •Optimized Injection Gas Flow Path for Improved Efficiency • Positive Sealing Check Valve System •Tubing Pressure Integrity During ALL Phases of Operation • Reliable Deeper Injection Depths

1993年8月1日 · The GLV performance curve defines the injection-gas rate through an IPO GLV, and the tubing performance curve defines the total gas rate to establish the p ptD at each valve depth. This paper gives a detailed installation design example.

1993年8月1日 · The GLV performance curve defines the injection-gas rate through an IPO GLV, and the tubing performance curve defines the total gas rate to establish the p[sub ptD] at each valve depth. This paper gives a detailed installation design example. The GLV and tubing performance curves for spacing the valves are plotted for each valve depth. | OSTI.GOV

GLV (IPO and PPO respectively). Generally, a gas lift is a flexible, and a reliable artificial lift system with the ability to cover a wide range of production rates. Gas lift systems are a...

2020年3月5日 · There are two main types of gas lift valves: Injection Pressure Operated Valve (IPO) and Production Pressure Operated Valve (PPO). Other types of valves available in the market are throttling and pilot valves.

IPO (sometimes called casing pressure (CP) operated, Type 1 in Fig. 11.3) valves are the most common valve used in the industry to unload gas lift wells. Although somewhat influenced by the pressure of the flowing production fluid, IPO valves are controlled primarily by …

Injection-pressure-operated (IPO) valves are the common type of valve used in gas lift wells. The opening and closing state of the IPO valve depends on the valve...

2017年8月4日 · Gas lift systems are a closed system empowered by high-pressured gas. The entire process is used to reduce the wellbore fluid pressure gradient by supplementing gas through an external...

Section II.B will address gas injected at surface into the annular space between production casing and tubing. The injection gas travels down the annular space on its way to either a “kickoff “gas-lift” valve located in a tubing MANDREL with an Injection Pressure Operated gas lift valve (IPO), or to the bottom Orifice GLV.