Oil production from long horizontal wells can pose a challenge, due to reservoir heterogeneities and the presence of fractures. In such cases, the result is an imbalanced production profile leading to early water breakthrough. Once water coning occurs, oil production may be severely decreased, due to the resistance to oil flow from the water contributing zone. To reduce this imbalance, inflow control devices (ICDs) are placed in compartments across the entire lateral length of the horizontal, which compensates for permeability variation. The compartments are separated from each other using openhole packers and constrictors. The passive ICD's are always opened to production. In cases where specific ICDs starts to contribute undesired water production, water shut-off of the length below this ICDis performed; eliminating all flow contribution, below the ICD.

A new generation of Active/Adaptive ICD's has lately been installed in some openhole horizontal producers. The Active/Adaptive ICD's can be selectively closed/opened by a setting tool to control the water production. Using this completion, the oil production has been substantially increased (some wells more than 200 %) and consequent decrease in the water production to at least 50 % and even dry.

To operate the new generation of ICDs, a new generation modular anchor and Universal Shifting Tool (UST)is used. Thisis the first downhole application of this tool worldwide for selective shifting of ICDs in a horizontal wellbore. The tool uses hydraulic pressure created by an electric motor to generate force. It provides setting assurance by real time monitoring with controlled setting force, distance and speed. With the signature from the log, the position of the ICD sleeve can be confirmed — whether opened or closed and there is no need to have additional production logging runs to confirm the position of the sleeve.

This paper details the design and advantages of the new generation of active/adaptive ICDs in horizontal wells and how the new "modular anchor and UST" is being effectively used for selective operation of the ICDs.

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