Enhanced Oil Recovery EOR Systems and Facilities
EN-FAB Inc provides advanced enhanced oil recovery EOR systems and facilities to maximize hydrocarbon recovery and extend reservoir life with proven engineering solutions.

Portable Steam System (DAN-STM®)

EN-FAB, Inc's DAN‐STM® steam quality measurement system consists of an orifice meter and a choke arranged in series with the choke placed downstream of the orifice meter.

A conventional straight “bean” type choke requires a minimum of 50% pressure reduction to achieve critical flow. The pressure drop requirement is not always feasible, particularly in higher pressure systems. To minimize this difficulty, EN‐FAB Inc. employs a Pressure Recovery Venturi (PRV) nozzle within a conventional type choke body bean. The PRV design reduces the minimum pressure drop requirement to 20% of the inlet pressure.

The flow computer uses the orifice equation and Napier equation to solve for these values. By employing simultaneous equations solution method, first one parameter is solved for; i.e. mass rate, followed by using the value in either equation to obtain the other parameter; i.e., steam quality. The resulting values of these two parameters will satisfy both equations. Graphically, this is where the lines for each equation intersect. However, the orifice equation and the Napier equation cannot be used in their pure mathematical form, theoretically determined empirical constants are incorporated in the calculations that give accuracy to the results.