Landing Tool Receiving Groove Asymmetric Tab Design
Solution Overview
Problem
Existing wellbore landing tools and casings suffer damage from cutting tools due to the design of their receiving grooves, which can lead to reduced operational lifetime and efficiency in drilling and extraction operations.
Innovation Solution
The design incorporates a receiving groove with a tab that is recessed relative to the inner surface, featuring asymmetric and tapered surfaces to minimize contact and damage between cutting elements and the landing tool, allowing for radial offset and reduced contact with the tab and trailing surfaces, thereby protecting both the tool and the cutting elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the receiving groove has a standard design with cutting elements radially aligned with the tab, then the structure is simple, but the cutting elements suffer damage from contact with the tab and trailing surfaces
Solution Approach 1:
The receiving groove is designed with asymmetric features including a tab with a leading surface and trailing surface that are non-symmetric relative to the cutting element path. The groove portions have different configurations on either side of the tab, creating an asymmetric geometry that directs cutting elements away from contact with the tab and trailing surfaces while maintaining structural integrity and simplicity in manufacturing.
2Reliability
If cutting elements are radially offset from the tab, then damage to cutting tools is reduced, but the alignment precision during tripping becomes more difficult to control
Solution Approach 1:
The receiving groove is pre-configured with the asymmetric tab and groove portions positioned to automatically guide and radially offset cutting elements from the tab and trailing surfaces as the cutting tool is tripped through. This preliminary geometric arrangement ensures proper alignment and damage avoidance occurs automatically during the tripping operation, eliminating the need for additional active alignment controls.
Data Source
AI summary
A landing tool includes a body with an inner surface. A receiving groove is located on the inner surface and includes a first groove portion and a second groove portion separated by a tab. At least a portion of the tab is recessed from the inner surface of the landing tool. At least a portion of the second groove portion may further be recessed from one or both of the inner surface of the landing tool or an inner surface of the tab.