Andrew Poerschke, SLB
Oil and gas operators increasingly face difficulties optimizing production from wells characterized by variable flow regimes and dynamic pressure conditions. Conventional gas lift systems are often unable to respond effectively to these fluctuations, resulting in inefficiencies, elevated downtime, and reduced hydrocarbon recovery. These challenges are compounded by the need to control costs, particularly in marginal or complex well environments.
A newly developed surface-controlled gas lift technology addresses these limitations by enabling dynamic, precise adjustment of gas lift performance. The system integrates coordinated surface and downhole components to allow real-time modification of valve setpoints in response to changing well conditions. Using a hydraulically actuated mechanism, the technology provides accurate valve control independent of injection pressure, minimizing pressure losses and enhancing production rates.
Constructed with robust, industry-standard materials, the system is designed for reliability and seamless integration with existing infrastructure. Its ability to continuously optimize valve setpoints allows operators to "shoot the gaps" across a broad range of flow rates and pressures. Additional capabilities such as reversing injection flow or over-pressuring valves to clear obstructions further improve operability and reduce downtime.
Field deployments have validated the systems performance in annular, conventional, intermittent, and high-pressure gas lift applications. Demonstrating more than 8,500 open/close cycles over a one-year period, the technology offers durable, cost-effective production enhancement and reduced operating expenses.
By resolving the fundamental constraints of traditional gas lift designs, the surface-controlled system provides improved efficiency, operational flexibility, real-time visibility, and consistent repeatability under a wide range of well conditions.