Gel controls fluid loss in gravel-packed completions

A carbonate-laden gel pill, placed inside a sand-control screen and optimized for particle size distribution of the bridging particles for specific sand-control screens, minimizes fluid loss and potential damage to a gravel pack and formation.Additives to the pill enhance filter cake lift-off and temperature stability, allowing one to apply the pill in relatively small volumes, thus minimizing the need for remedial treatments.The carbonate-laden gel pill (SEAL-N-PEEL) is placed below the packer to seal off the area defined by the inner wrap or mesh of a sand-control screen. Carbonate loading, particle size distribution, pill size, and density are important factors for designing the applic...

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