Multi-cycle circulation valve activated by balls
AssigneeUniversal Completions LLC
InventorsMartin Mauro Nebiolo, Christian Cerne, Gustavo Dietrich, Cristian Brendstrup
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AssigneeUniversal Completions LLC
InventorsMartin Mauro Nebiolo, Christian Cerne, Gustavo Dietrich, Cristian Brendstrup
Estimating the term…
Multi-cycle circulation valve activated by balls is provided including a unified tubular tool that integrates an upper sub, an upper housing, a mobile mandrel assembly, a ball activation system, a lower sub, a lower mandrel with machined J-slots consisting of two helical channels of different lengths, where guide pins transversely mounted through a synchronizing sleeve are channeled into the slots during axial movement of the piston. The lower mandrel extension incorporates elastomeric rings that provide dynamic sealing with the perforated housing, while radial circulation ports selectively align with housing ports to establish controlled hydraulic communication. The ball receiver features stepped internal geometry with seven evenly distributed millings for multi-cycle capture. The graphite-filled Teflon deformable balls of 11/16 inch activate the system, generating controlled rotations of 95.6° and 84.4°, producing a total angular displacement of 180° after two complete cycles, enabling automatic switching between direct flow mode and annular circulation without requiring well retrieval.
A multi-cycle circulation valve activated by balls, comprising:
Dependencies are inferred from the claim text.