Method and apparatus for downhole installation of coiled tubing strings
OwnerChad Barber, Denis Gilbert +1inventors
InventorsChad Barber, Denis Gilbert, Arnoud Struyk
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Abstract
A tool for releasably coupling a coiled tubing string to a primary tubing string includes: a tool body for coupling to a downstream end of the primary tubing string, the tool body comprising a locking mechanism for selectively coupling a coiled tubing end joint to the tool body, the locking mechanism being unlockable in response to fluid pressure inside the tool body exceeding a first threshold; a wellbore access mechanism openable in response to fluid pressure inside the tool exceeding a second threshold.
Claims17
A tool for releasably coupling a coiled tubing string to a primary tubing string, the tool comprising:
- a tool body for coupling to a downstream end of the primary tubing string, the tool body comprising a locking mechanism for selectively coupling a coiled tubing end joint to the tool body, the locking mechanism being unlockable in response to fluid pressure inside the tool body exceeding a first threshold;
- a wellbore access mechanism openable in response to fluid pressure inside the tool exceeding a second threshold.
A clamp assembly for coupling a coiled tubing string to a primary tubing string, the clamp assembly comprising;
- a coupler for coupling adjacent primary tubing members of the primary tubing string to one another;
- a clamp coupled to the coupler, the clamp comprising a hinge and a bracket located opposite the hinge, the bracket for receiving the coiled tubing string;
- wherein the bracket is sized for limiting non-axial movement of the coiled tubing string relative to the primary tubing string.
Dependencies are inferred from the claim text.