D40.4: Clarification of Minimum Requirements

Well test information is critical for the prudent management of oil and gas reservoirs. Well testing is thus an integral part of the overall production and depletion strategy of a reservoir. The Alberta Energy Regulator (#AER) defines the minimum legal requirements for #welltesting which are considered essential for prudent reservoir management.

Forecasting stabilized gas well (#LNG) deliverability is important for tie-in economics, tubing string design, separation and facility design, and pipeline capacity contracts. The Alberta Energy Regulator (#AER) uses this information in reserves determinations, provincial forecasts of gas deliverability, and in processing applications for gas plants, pipelines, batteries, etc… Absolute open flow (#AOF) testing is thus a basic requirement for all gas (#LNG) wells. Surface deliverability data are acceptable only for a dry gas AOF <20 e3m3/d. Subsurface flowing pressure data must otherwise be acquired. Single point #welltests are compliant if the AOF is <300 e3m3/d, above which a multi-point test with LIT analysis must be conducted. In-line data (i.e. well on production) are acceptable. The Southeastern Alberta Shallow Gas System is exempt.