US 2018/0023370 A1 · SELECTIVE ROTATIONALLY ALIGNING INDICATING MECHANISM

Abstract

A multi-function tool is connected to an inner string to selectively align a port or ports in the inner string with ports in the outer string at various locations. The tool is locked from functioning at some locations where a locating collet will not selectively engage with an unlocking profile. In this more the tool will pass through the location unhindered. If an unlock profile is engaged the tool is enabled to be unlocked so that manipulation allows a support mandrel to align with collets that have an external V-shaped profile. Setting down weight allows the supported V-shaped profile on the collets engage a similar profile on the outer tubular to rotate, if needed , and to find support on a V-shaped profile on the surrounding tubular for performance of the borehole operation. Thereafter the locating collet engages a locking profile to disable the tool again.

Claims18

Dependent claims

A borehole tool selectively supported and rotationally oriented within an outer tubular string defining a borehole wall for alignment of at least one port on the borehole tool with at least one port on the outer tubular string, comprising:

a mandrel;
an outer assembly on said mandrel comprising selectively supported finger collets, said finger collets comprising a selectively rotation inducing profile when contacting a similarly shaped support profile on the outer tubular for rotation relative thereto, said selective supporting occurring with relative movement of said mandrel with respect to said outer assembly, said relative movement enabled with at least one collet on said outer assembly landing in a mating unlock profile on the outer tubular and axial translation of said mandrel.

A method of aligning ports in a tool on an inner string with ports in a surrounding tubular string for performing a borehole treatment, comprising:

providing a rotatable orientation feature on collet fingers on a sleeve that forms a part of an outer assembly surrounding a mandrel supported by an inner string;
engaging said orientation feature with at least one conforming support surface on the surrounding tubular string for selective relative rotation between the ports on said tool and the ports on said surrounding tubular string;
enabling said orientation feature to support the tool and inner string weight on the conforming support surface with earlier enabling relative motion between said mandrel and said outer assembly, said earlier enabling said relative motion comprises disabling a lock between said mandrel and said outer assembly;
performing a borehole operation through said aligned ports.

1 more element

Dependencies are inferred from the claim text.

Selective rotationally aligning indicating mechanism

Life of this patent

Selective rotationally aligning indicating mechanism

Life of this patent

Abstract

Claims18