The DAR technology
based on the patented ERV© invention
First Universal Inflow Control System (UICS)
The Density Activated Recovery (DAR) by Innowell is a new generation inflow control technology based on simple and robust mechanical principles, that resolves the challenges associated with current inflow control technologies and provides truly game-changing capabilities:
The DAR technology therefore represents a new generation inflow control technology: the Universal Inflow Control System (UICS).
In many high-productivity fields, oil recovery has been radically improved through downhole inflow control, initially through passive fixed-geometry Inflow Control Devices (ICDs) and later through Autonomous ICDs (AICDs), which discriminate between wanted and unwanted fluids. There are however challenges with existing technologies:
If these gaps and limitations of existing technologies were sorted out, higher deployment rate of downhole inflow control could be achieved, especially for maximum reservoir contact wells, which typically penetrate several formation layers with large variations in reservoir properties.
The goal for the development of the DAR technology was to enable inflow control without limitations by providing solutions to known gaps in existing technologies. This way, inflow control as a very successful IOR technology could become available to a substantially larger number of fields and wells, regardless of fluids and reservoir conditions.
Innowell's DAR technology requires negligible pressure drop and works independently of fluid viscosities, pressure conditions, local inflow rates and reservoir properties. Negative consequences of geological uncertainty are thereby eliminated, and sustained high oil production can be combined with an insurance against loss of revenues caused by early breakthrough of water and/or gas.
Early visualisation of the technology.
So far, the technology development has led to the following patents:
Patent applications are pending in several countries.