Downhole apparatus
AssigneeWireline Engineering Limited
InventorRobert Neil Hall
Life of this patent
Estimating the term…
Abstract
A downhole apparatus for depositing a tool in a side pocket mandrel is described. The apparatus comprises an apparatus body, a tool holder and a displacement mechanism for connecting the tool holder to the apparatus body. The tool holder is movable between a run-in position, in which the tool holder is adjacent the body, to a displaced position, in which the tool holder is spaced away from the body. As a tool is moved between the run-in position and the displaced position, a tool longitudinal axis remains substantially parallel to an apparatus body longitudinal axis.
Claims33
A downhole apparatus for depositing a tool in a side pocket mandrel, the apparatus comprising:
- an apparatus body;
- a tool holder, the tool holder being movable between a run-in position, in which the tool holder is adjacent the apparatus body, to a displaced position, in which the tool holder is spaced away from the body;
- a displacement mechanism for connecting the tool holder to the apparatus body;
- wherein, in use, as a tool is moved between the run-in position and the displaced position, a tool longitudinal axis remains substantially parallel to an apparatus body longitudinal axis, wherein
- the displacement mechanism comprises a first member and a second member, and the first member has an upper pivot attachment to the apparatus body and a lower pivot attachment to the tool holder, and the second member has an upper pivot attachment to the apparatus body and a lower pivot attachment to the tool holder.
A downhole apparatus for depositing a tool in a side pocket mandrel, the apparatus comprising:
- an apparatus body;
- a tool holder, the tool holder being movable between a run-in position, in which the tool holder is adjacent the apparatus body, to a displaced position, in which the tool holder is spaced away from the body;
- a displacement mechanism for connecting the tool holder to the apparatus body;
- wherein, in use, as a tool is moved between the run-in position and the displaced position, a tool longitudinal axis remains substantially parallel to an apparatus body longitudinal axis, wherein
- the apparatus comprises at least one biasing means to bias the displacement mechanism to the displaced position, and
- the/each biasing means is pivotally mounted to a displacement member.
A downhole apparatus for depositing a tool in a side pocket mandrel, the apparatus comprising:
- an apparatus body;
- a tool holder, the tool holder being movable between a run-in position, in which the tool holder is adjacent the apparatus body, to a displaced position, in which the tool holder is spaced away from the body;
- a displacement mechanism for connecting the tool holder to the apparatus body;
- wherein, in use, as a tool is moved between the run-in position and the displaced position, a tool longitudinal axis remains substantially parallel to an apparatus body longitudinal axis, wherein
- the apparatus comprises at least one biasing means to bias the displacement mechanism to the displaced position, and
- where the displacement mechanism comprises a first displacement member and the biasing means comprises a pair of springs, the springs are positioned between a tool body surface and a displacement member surface, one spring arranged to press against the tool body surface and the other spring arranged to press against the displacement member surface.
A method of depositing a tool in a side pocket mandrel comprising the steps of:
- moving a tool to a run-in position, the tool being attached to an apparatus, the apparatus comprising:
- an apparatus body,
- a tool holder and
- a displacement mechanism, the displacement mechanism connecting the tool holder to the apparatus body, the displacement mechanism comprising a first member and a second member, the first member having an upper pivot attachment to the apparatus body and a lower pivot attachment to the tool holder, and the second member having an upper pivot attachment to the apparatus body and a lower pivot attachment to the tool holder, and wherein
- in the run-in position the tool holder is adjacent the apparatus body, and
- displacing the tool holder to a displaced position in which the tool holder is spaced away from the body, the tool longitudinal axis remaining substantially parallel to an apparatus body longitudinal axis tool during movement between the run-in and displaced positions.
Dependencies are inferred from the claim text.