Summary
Excessive sand production, uneven recovery of reserves throughout the length of a horizontal well and early water and gas breakthrough are deemed to be the main problems while developing poorly consolidated terrigenous fields with contact reserves. Assessment of feseability of possible completion systems (gravel packing and autonomous inflow control devices were chosen for implementation) is necessary at the pilot stage of the project. Pilot wells shall be monitored at each stage including development, recovery, observation over the dynamics of water and gas breakthrough processes. The use of traditional PLT methods is not always technologically feasible and cost-effective. This article describes the experience of using stationary of intelligent inflow markers for permanent monitoring for the purposes mentioned above.
