Self-Elevating Mast Actuators for Drilling Rig Assembly
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Solution Overview
Problem
Current drilling rig assembly methods are inefficient and lack flexibility in assembling and disassembling the drilling mast, particularly when moving between different wellbore locations, as they often require complex and time-consuming processes.
Innovation Solution
The use of self-elevating actuators, such as hydraulically telescoping cylinders, to vertically extend and retract mast sections through a platform opening, allowing for sequential attachment and detachment of mast sections using a bolt and pin system, enabling efficient assembly and disassembly for relocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional drilling rig assembly methods are used, then the mast can be assembled and disassembled, but the process is time-consuming and inefficient
Solution Approach 1:
The mast is divided into multiple mast sections that can be independently handled and assembled. Each mast section can be separately positioned and connected, allowing for modular assembly that reduces overall assembly time and improves productivity.
Solution Approach 2:
The actuators are self-contained units that provide both the lifting force and the coupling mechanism in one integrated component. The actuator includes an integrated coupling device that automatically engages with the mast section, eliminating the need for separate coupling operations and reducing assembly time.
2Adaptability or versatility
If traditional assembly methods are used, then the mast can be constructed, but the process lacks flexibility for relocation
Solution Approach 1:
The actuator is designed as a dynamic component that can extend and retract to accommodate different mast section positions. The actuator's movable coupling device can engage and disengage from mast sections, providing the flexibility needed for relocation while maintaining structural integrity during operation.
Solution Approach 2:
The actuator serves multiple functions: it provides lifting force, positions mast sections, and includes an integrated coupling device for connection. This multi-functionality reduces the number of separate components needed, simplifying the overall system while enhancing mobility and reconfiguration capability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method significantly reduces the time and effort required to assemble and disassemble the drilling mast, enhancing mobility and flexibility by allowing for rapid reconfiguration of the drilling rig at different locations.
Implementation Method 1
The actuators may be, for example, hydraulically telescoping cylinders
Data Source
AI summary
A method includes accommodating a first mast section of a mast on a mast cart below a floor of a platform, the mast comprising a plurality of mast sections, and elevating, using actuators located on the mast cart, the first mast section through an opening in the platform. The method also includes attaching the first mast section to the platform using a plurality of holding locks located on the platform, accommodating a second mast section on the mast cart below the floor of the platform, and elevating the second mast section to the first mast section using the actuators. The method also includes attaching the first mast section to the second mast section, detaching the first mast section from the platform, elevating the first mast section and the second mast section through the opening using the actuators, and attaching the second mast section to the platform using the holding locks.