Guyless Rig Stabilization Using Internal Guylines and Outriggers
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Solution Overview
Problem
Oil rigs with tall masts are vulnerable to tipping due to wind loading, and existing stabilization methods using external guylines require extensive setup time and space, posing safety concerns and operational inefficiencies.
Innovation Solution
A stabilization system for oil rigs featuring front and rear outriggers with internal guylines and racking board supports, which can telescope and pivot to secure the rig without external anchors, including a foot portion with a jackscrew and washers to react to wind loads and trigger an alarm if tipping is imminent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If external guylines with anchors are used to stabilize the rig, then the rig stability is improved, but the setup time and working area requirement increase
Solution Approach 1:
The invention extracts and eliminates the external anchor components from the stabilization system. Instead of using traditional external guylines anchored to the ground, the system uses internal guylines that are contained within and attached to the mast structure itself, thereby removing the time-consuming anchor installation process while maintaining stabilization functionality
Solution Approach 2:
The invention merges the guyline attachment points with the mast structure by integrating internal guylines that are contained within the mast. This combines what were previously separate components (external guylines and ground anchors) into a unified internal system, eliminating the need for external anchor installation and reducing setup time
2Stability of the object's composition
If external guylines with anchors are used to stabilize the rig, then the rig stability is improved, but the working area requirement increases
Solution Approach 1:
The invention extracts and removes the external anchor components that require large working areas. By eliminating the need for ground anchors positioned at distances of 50-150 feet from the rig, the system significantly reduces the required working area while maintaining stabilization effectiveness through internal mast-mounted attachment points
Solution Approach 2:
The invention transitions the stabilization system from a two-dimensional external configuration (guylines extending outward to ground anchors) to a more compact three-dimensional internal configuration within the mast structure. This dimensional reorganization allows the same stabilizing function to be achieved within a much smaller footprint
3Length of moving object
If taller masts are used to increase drilling capacity, then the drilling capability is improved, but the vulnerability to wind loading increases
Solution Approach 1:
The invention incorporates adjustable and telescoping outriggers that can dynamically adapt to different mast heights and wind conditions. This dynamic capability allows the stabilization system to be optimized for each specific operating condition, providing enhanced stability for taller masts without requiring permanently fixed external anchor systems
Solution Approach 2:
The stabilization system is designed to be self-contained and self-supporting through its internal guyline configuration and outrigger mechanism. The system serves itself by using the mast structure as both the support element and the containment structure for the guylines, eliminating the need for external service components like ground anchors
Data Source
AI summary
The present disclosure, in one or more embodiments, relates to a well servicing rig having a mast having a racking board, a base supporting the mast, and a stabilization system configured to secure the rig against wind loading. The stabilization system may include a pair of front outriggers, a pair of rear outriggers, a pair of racking board supports coupled to the rear outriggers, and a pair of internal guylines extending between the racking board and the racking board supports.