Estimated time before reaching the point of economical production of the hydrocarbons.

ELT (sometimes referred to as t_∞) is measured in time units and is usually presented in years.

Unlike RPR it gives more realistic expectations of the resources end of life.

Meantime the ELT is only an estimation and it depends on numerous factors which may affect the production economics in future.

See Also

Petroleum Industry / Upstream  / Petroleum Asset / Petroleum Asset Summary

[ Petroleum Industry / Upstream /  Production / Field Summary]

[ Petroleum Industry /  Upstream / Subsurface E&P Disciplines / Petroleum Geology /  Petroleum Reservoir / Recoverable Hydrocarbon Reserves ]

[ Reserves-to-Production Ratio (RPR) ]