Tubular Thread Protector Sealing Against Scale and Loosening
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Solution Overview
Problem
Existing protectors for tubular threaded elements fail to effectively block solid particles such as scale from entering the functional surfaces, leading to degradation of coatings and increased loosening during transportation and temperature variations, while also requiring additional manual inspection and increased operational effort.
Innovation Solution
A protector with a seal positioned on an exterior axial surface facing the internal wall of the tubular element, blocking solid particles and enhancing the brake effect to prevent loosening, while allowing easy manual unscrewing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If protectors are used to protect tubular threaded elements, then coating integrity is improved, but loosening during transportation and temperature variations increases
Solution Approach 1:
The protector and tubular threaded element are designed to accommodate thermal expansion and contraction during temperature variations. The threaded connection and abutment surfaces are configured to maintain stable engagement despite dimensional changes, preventing loosening during transportation and storage.
2Object-affected harmful factors
If protectors are designed with comprehensive sealing, then particle blocking is improved, but installation and removal require additional manual inspection and operational effort
Solution Approach 1:
The protector design incorporates self-aligning features through its threaded connection and abutment surfaces. When screwed onto the tubular threaded element, the protector automatically positions itself correctly with the sealing surfaces engaging properly, eliminating the need for additional manual inspection during installation and removal.
Data Source
AI summary
A protector is for a tubular threaded element for drilling, exploitation of hydrocarbon wells, transport of oil and gas, transport or storage of hydrogen, carbon capture or geothermy. The protector includes a main body that includes at least one exterior axial surface extending axially and facing outward in such a manner as to be able in the assembled state to face the interior surface wall of a tubular threaded element. The exterior axial surface of the main body is fitted with at least one seal adapted in the assembled state to block particles of scale.