Well servicing tool storage system for subsea well intervention
AssigneeExpro AX-S Technology Limited
InventorsAndrew Richards, Mark Davies
Life of this patent
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Abstract
A well servicing tool storage system for subsea well intervention is disclosed which provides a tool storage means as part of the intervention system and which has a plurality of tool storage arms deployed around the tool storage means. Each arm has a clamp capable of clamping a tool, and moving the clamped tool between a stored position near the perimeter of the tool storage means, and a deployed position in the centre of the tool storage means where the tool can be made up into a wireline connection.
Claims16
A well intervention system for storage and deployment of wireline tooling, the system comprising:
- a tool storage chamber having a plurality of tool storage clamping means disposed about the periphery of the chamber, each tool storage clamping means being capable of retaining a tool in a storage position, and being moveable from the storage position to a deployment position where the tool may be coupled and decoupled to a connection tool from above, said tool storage means having a storage clamp at its free end, said clamp being moveable between a closed position for retaining tool in said stored position and for holding the tool as it is moved between the deployment position and the storage position, and an open position when the tool is in the deployment position to allow the tool to be coupled and uncoupled to said connection tool.
A method in deploying a tool from a tool storage system for subsea well intervention in a subsea well, said method comprising:
- storing a plurality of oil intervention tools within a tool storage chamber so that the tools are substantially vertically aligned within said chamber when in said storage position;
- selecting a tool for deployment;
- moving said selected tool transversely to a tool deployment position, said tool deployment position being substantially coaxial with said subsea well;
- coupling a connection tool from above to the top of the selected tool;
- and
- releasing the selected tool and deploying the selected tool in said well.
A method of storing a tool used for subsea well intervention within a well storage system after the tool has been deployed in the well, said method comprising:
- returning the deployed tool to a first position within the tool storage chamber, said first position being substantially coaxial with said subsea well;
- engaging the deployed tool in a second position, said second position still being coaxial with said subsea well;
- clamping said tool in the second position;
- and
- decoupling the tool from a wireline connection system and moving the decoupled tool from the deployed position to a tool storage position.
A tool storage and deployment mechanism for use with a subsea well intervention system, said tool storage and deployment mechanism comprising:
- tool storage clamping means being capable of retaining a tool in a storage position, and being moveable from the storage position to a deployment position where the tool may be coupled and decoupled to a connection tool from above, said tool storage means having a storage clamp at its free end, said clamp being moveable between a closed position for retaining tool in said stored position and for holding the tool as it is moved between the deployment position and the storage position, and an open position when the tool is in the deployment position to allow the tool to be coupled and uncoupled to said connection tool.
A connection mechanism for coupling a wireline to a wireline tool for deployment in a wireline intervention system, said connection mechanism comprising:
- a first male portion having a plurality of circumferentially disposed axially aligned collet fingers which are radially moveable;
- a female receptacle disposed at the top of said wireline tool, said female receptacle having an internal profile for receiving said collet fingers;
- and
- an electrical connector mechanism disposed within said male mechanism and said collet fingers, said electrical connector mechanism being actuatable to move between a stored position after the collet fingers are after engagement, whereby after actuation, the collet fingers are locked by said connecter mechanism to said profile to prevent release of the male and female members, and to provide electrical connection between the wireline and wireline tool.
Dependencies are inferred from the claim text.