An operator deployed ResFlow™ AICD* 2M devices across a heterogeneous sandstone reservoir. As a result, oil production increased to six times the amount from offset wells and water cut reduced by 30%.
*Autonomous inflow control device
A field in Oman is characterized by oil viscosity of 250–450 cP and water mobility significantly greater than that of the oil. A strong permeability contrast along the wellbore and potential fault crossings are other complicating features. In the absence of production logging interventions, water entry points are unknown, increasing the risk of premature water breakthrough in high-permeability streaks. Uneven horizontal wellbore geometry causing water to accumulate in low spots further complicates the situation.
To address these challenges, the operator decided to deploy 14 ResFlow AICD 2M devices across 8 compartments in one well. This piloted floating disc AICD opens and closes autonomously based on the properties of the fluid entering the device.
The devices delivered an additional 46,000 bbl/yr [7,300 m3/yr]—increasing production to six times the average output of offset wells—and reduced water cut by 30%. Because the progressive cavity pump (PCP) in the well had to lift less of the denser water, its electricity consumption decreased; produced water treatment requirements also reduced. The operator plans to deploy ResFlow AICD 2M devices in additional wells across the field.
