Modular Mast Assembly for Drilling Rig Reconfiguration
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Solution Overview
Problem
Land-based drilling rigs face challenges in maneuvering around existing wellheads and equipment, as mast placement can interfere with drilling operations and equipment movement, limiting flexibility and efficiency in wellsite operations.
Innovation Solution
A mast assembly for drilling rigs composed of separable subunits, allowing for vertical and horizontal reconfiguration, including a lower drilling machine, upper drilling machine, and upper mud assembly, which can be easily transported and reassembled to avoid interference with existing infrastructure, enabling continuous drilling operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the mast is designed as a single integrated structure, then structural strength and stability are improved, but mobility and adaptability to different wellsite configurations deteriorate
Solution Approach 1:
The mast is divided into multiple separable subunits (first subunit, second subunit, third subunit) that can be disconnected and reconfigured. This segmentation allows the mast to be adapted to different wellsite configurations while maintaining structural integrity when assembled, resolving the contradiction between strength and adaptability.
2Stability of the object's composition
If the mast is designed as a single integrated structure, then structural stability is improved, but ease of transport and reconfiguration deteriorates
Solution Approach 1:
The mast is divided into multiple separable subunits that can be transported independently and assembled on-site. This segmentation makes transport and reconfiguration easier while maintaining structural stability when the subunits are connected during drilling operations.
Solution Approach 2:
The drilling machines and mud assembly are positioned within or between the mast subunits, allowing compact storage and transport. The components nest within the modular structure, facilitating easier handling and reconfiguration while maintaining overall system stability.
3Stability of the object's composition
If the mast placement is fixed, then structural stability is improved, but interference with existing wellheads and equipment increases
Solution Approach 1:
The separable mast subunits can be reconfigured and repositioned to avoid interference with existing wellheads and equipment. The modular design allows flexible placement while maintaining structural stability, eliminating the harmful interference effect.
4Force
If the mast is designed as a single integrated structure, then load-bearing capacity is improved, but device complexity for reconfiguration deteriorates
Solution Approach 1:
The mast is divided into standardized subunits with simple connection interfaces. This segmentation maintains load-bearing capacity when assembled while reducing reconfiguration complexity through modular, interchangeable components that can be easily connected and disconnected.
Data Source
AI summary
A mast assembly for a drilling rig includes a mast formed from a plurality of mast subunits. The mast assembly includes a lower drilling machine, upper drilling machine, and upper mud assembly, each of which is coupled to and movable vertically relative to the mast. The mast subunits are separable when the mast is in a transport configuration such that the LDM is positioned in a first subunit and the UDM is in a second subunit of the mast when the mast is in the transport configuration. The mast assembly may be used during a continuous drilling operation.