智能完井技术 INTELLIGENT COMPLETIONS.pdf

INTELLIGENT COMPLETIONS Managing uncertainties in reservoirs, particularly in carbonate rocks, is a major challenge. However, intelligent-completion technology gives operators the ability to monitor and control individual zones within wells. Without this control, operators may lose a well when a zone unexpectedly waters out or a well may require mechanical intervention, with its associated risks and costs. intelligent-completion technology is enabling operators to optimize production or injection programs, improve reservoir performance, achieve higher extraction ratios, and reduce field-development and intervention costs. The technology’s reliability has been demonstrated in high-productivity wells, and fit-for-purpose intelligent completions are now being installed in wells with lower productivity to help safeguard against reservoir uncertainties and provide incremental production. In this article, Bernard Montaron and Adam Vasper describe examples for applications ranging from water control to gas lift in which intelligent-completion technology is proving to be the most economic option. Major advances in well-placement technology have improved Figure 1: The TRFC-HN AP and TRFC-HN LP valves working in combination to control production from two zones. production rates and minimized water production. Now, more reservoir targets are being accessed from fewer well slots by using multilateral wells, and more deepwater and subsea wells are being drilled. However, drilling long horizontal wells without zonal control exposes operators to the challenges of reservoir uncert