PTC’s proprietary gas lift simulation software tool facilitates the design and comparison of multiple gas lift simulation cases . As a result, decisions on mandrel depths and valve settings can be taken considering the entire range of lifecycle operating scenarios. Numerous Operating Companies rely on PTC’s Gas Lift Design Tool to configure their well completions.
Traditionally decisions regarding the optimum number and setting depths of valves in gas lifted wells have been made considering only a small number of operating scenarios. As a result, wells often do not perform as expected.
A lack of rigor also often exists when checking the suitability of proposed valve set up specifications over the expected life of well operating conditions. This often means that injection of all available lift gas at the deepest possible location cannot be achieved.
A more rigorous well life-cycle design process is available, incorporating both Petroleum Experts ‘Prosper’and proprietary Petroleum Technology Company software. It facilitates the consideration of a wider range of life-cycle operating conditions and data uncertainties and checks for life-cycle design resilience.
Well reliability is enhanced and life-cycle productivity is optimized, this is as a result of:
- The impact of design compromises and uncertainties are addressed to better facilitate informed decisions regarding valve numbers and depths.
- The requirement for anti-scale valves is also assessed
Life-cycle Gas Lift Valve Specifications:
- Selected and checked for all expected life-cycle operating conditions to ensure: kick off is always possible and multi-pointing, unstable flow and check valve chatter is always avoided.
Unloading Schedule Details:
- To avoid the potential for gas lift valve damage during this most critical period in the valves life.