Downhole Anchoring Tools With Rotatable Collapsible Pivot Members
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Solution Overview
Problem
Existing anchoring systems for downhole equipment lack adaptability, leading to permanency within wellbores, reducing accessibility and causing inefficiencies and costly interventions.
Innovation Solution
An anchoring tool with a support base and adjustable mechanism, allowing for extension and collapse configurations via a rotational device, enabling secure positioning and repositioning within a surrounding wall.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If anchoring systems are designed to securely position downhole equipment, then positioning reliability is improved, but adaptability for repositioning deteriorates
Solution Approach 1:
The anchoring system employs a dynamic adjustment mechanism with multiple pivotable members that can transition between extended and collapsed configurations. This allows the system to adapt from a fixed secure position to a reconfigurable state, enabling repositioning while maintaining positioning reliability when anchored.
Solution Approach 2:
The adjustment mechanism is divided into multiple interconnected pivotable members (first and second pivotable members) that can be independently positioned. This segmentation allows selective extension and collapse of specific members, providing fine-grained control over the anchoring position and enabling both secure positioning and adaptability for repositioning.
2Stability of the object's composition
If anchoring systems become permanent fixtures within wellbores, then positioning stability is improved, but wellbore accessibility deteriorates
Solution Approach 1:
The system transitions from a static permanent fixture to a dynamic reconfigurable anchor. The pivotable members can be collapsed to retrieve the tool or extended to secure it in place, providing stability when needed and accessibility when needed, eliminating the permanent fixture limitation.
Solution Approach 2:
The adjustment mechanism members are designed to nest within each other when collapsed, allowing the anchoring tool to be retrieved from the wellbore. The first and second pivotable members can be folded into a compact configuration that fits within the wellbore constraints, enabling future interventions.
3Device complexity
If anchoring systems lack repositioning capability, then device complexity is reduced, but productivity deteriorates due to extended downtime
Solution Approach 1:
The dynamic adjustment mechanism enables rapid repositioning by simply rotating the adjustment mechanism, transitioning members between extended and collapsed states. This reduces downtime significantly compared to removing and re-installing anchors, improving productivity while adding only moderate complexity.
Solution Approach 2:
The adjustment mechanism is designed to be self-adjusting through the rotation of the adjustment mechanism itself, which automatically positions the pivotable members without requiring external tools or complex control systems. This maintains relative simplicity while enabling rapid repositioning for improved productivity.
Data Source
AI summary
An example anchoring device includes a support base and an adjustment mechanism connected to the support base. The adjustment mechanism includes a rotatable member, multiple first pivotable members connected to the rotatable member, and multiple second pivotable members connected to the support base. The rotatable member is rotatable in a first direction to cause the multiple first pivotable members and the multiple second pivotable members to pivot outwardly to provide an extended configuration of the adjustment mechanism and rotatable in a second direction to cause the multiple first pivotable members and the multiple second pivotable members to pivot inwardly to provide a collapsed configuration of the adjustment mechanism.