Drill String Disassembly System with Adjustable Bit Basket
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Solution Overview
Problem
Conventional drill rig systems are cumbersome and time-consuming for disassembling components, particularly when dealing with multiple drill string configurations, and require significant space, limiting their versatility and efficiency.
Innovation Solution
A system comprising a primary wrench swivelably supported on a mast, a secondary adjustable wrench, and a bit removal basket with adjustable openings to accommodate different drill bit profiles, allowing for quick and easy disassembly of various drill string configurations without the need for extensive tool movement or space.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional drill rig systems are used for disassembling components, then the disassembly operation can be performed, but the process becomes cumbersome and time-consuming
Solution Approach 1:
The patent combines multiple disassembly functions into a single integrated system mounted on the drill rig. The system merges the primary wrench for rotating components, the secondary wrench for providing reaction force, and the bit removal basket for catching drill bits into one coordinated assembly, eliminating the need for multiple separate tools and operations that characterize conventional systems.
Solution Approach 2:
The primary wrench is designed with universal applicability to handle multiple drill string configurations and component types. The adjustable opening of the bit removal basket allows it to accommodate different drill bit sizes and profiles. This multi-functionality enables a single system to perform various disassembly operations across different drill configurations, improving productivity without requiring operator retraining or tool changes.
2Adaptability or versatility
If multiple tools are used for disassembly operations, then various drill string configurations can be handled, but the system becomes complex and space-consuming
Solution Approach 1:
The primary wrench serves multiple functions: it can rotate different types of drill string components, engage with various component geometries through its jaw design, and work with multiple drill configurations. This single multi-functional tool replaces what would traditionally require multiple specialized tools, reducing device complexity while maintaining adaptability across different drill string types.
Solution Approach 2:
The system employs a nested arrangement where the bit removal basket is positioned to receive drill bits after they are separated from the drill string. The basket nests within the spatial envelope of the existing drill rig structure, and the secondary wrench is positioned to work in conjunction with the primary wrench without requiring additional external space. This nesting approach accommodates multiple tool functions within a compact footprint.
3Productivity
If conventional disassembly systems are installed on the drill rig deck, then disassembly operations can be performed, but a significant amount of space is required
Solution Approach 1:
The system merges the disassembly functionality into a compact integrated unit that mounts directly on the drill rig mast or existing structure. By combining the primary wrench, secondary wrench, and bit removal basket into a single space-efficient assembly, the system provides full disassembly capability without requiring the extensive deck space that would be needed for multiple separate conventional tools and their support structures.
Solution Approach 2:
The system utilizes the vertical dimension of the drill rig structure by mounting components at different heights along the mast. The primary wrench is positioned at a first height, the secondary wrench at a second height, and the bit removal basket at a third height. This vertical arrangement allows multiple functions to be stacked in the vertical dimension rather than spreading out horizontally, significantly reducing the footprint on the drill rig deck.
Data Source
AI summary
A system for disassembling components of a drill string includes a primary wrench, a secondary wrench, and a bit removal basket. The primary wrench has a pair of jaws in which at least one of the jaws is moveable in relation to the other. The secondary wrench is disposed at a position lower than the primary wrench and is configured to define a pair of beveled faces that are adapted to restrict a rotational movement of at least one component of the drill string. The bit removal basket is disposed at a position lower than the secondary wrench. The bit removal basket is configured to define an opening therethrough. A shape of the opening is configured to correspond with profiles of at least two types of drill bits, one of the at least two types of drill bits being present for use in the drill string.