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Completing the Well

New method developed to treat individual layers in cemented cased-hole completions

By Gary Rytlewski, Schlumberger A new method of completing multiple-layer formations has been successfully tested in the United States and Canada. This new method places sliding sleeve valves in the casing string and completes the well with normal cementing operations. The sliding sleeve valves are opened one at a time to fracture layers independently without perforating. Completions using these casing valves are called treat and produce (TAP) completions and have a unique design feature in the valves that allows a theoretically unlimited number of valves to be placed in a single well without incremental reductions to the internal diameter (ID). This near full bore feature allows normal cementing operations to be preformed with a special cement wiper plug. A control ...

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