Helical Hardbanding Drill Pipe Wear Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing solutions for protecting the central regions of drill pipes from wear and abrasion are costly, have durability concerns, and can adversely affect fluid flow, as drilling technology advances and drill pipes experience increased deflection and complex well paths.
Innovation Solution
Applying helical hardbanding treatments to the external surface of drill pipes and other tubular components to enhance durability, strength, and fluid flow, with the hardbanding extending along a significant portion of the pipe's length and forming continuous or discontinuous bands that provide enhanced wear protection without compromising fluid flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sacrificial products are installed at the tool joint of the drill pipe, then wear and abrasion protection is improved, but the cost increases and fluid flow is adversely affected
Solution Approach 1:
The drill pipe is divided into distinct zones: tool joints receive traditional sacrificial products for wear protection, while the body sections between tool joints are left smooth to maintain fluid flow. This segmentation allows each zone to be optimized independently for its specific function.
Solution Approach 2:
Different protective measures are applied to different locations on the drill pipe based on their specific wear exposure and fluid flow requirements. The tool joints get heavy-duty protection while the body sections maintain smooth surfaces, creating local quality variations that optimize overall performance.
2Reliability
If coatings and wear components are applied to the mid-section of the drill pipe, then central region protection is improved, but the cost increases and durability concerns arise
Solution Approach 1:
Instead of applying protective coatings to the entire drill pipe, the invention applies protection only where absolutely necessary (tool joints), leaving the body sections unprotected but smooth. This partial action approach reduces cost and manufacturing complexity while providing adequate protection where wear occurs.
Solution Approach 2:
Rather than adding protective layers to the drill pipe body, the invention inverts the approach by keeping the body smooth and unprotected, relying on the natural wear resistance of the base metal in the central regions while concentrating protection efforts on the tool joints where wear is most severe.
3Productivity
If drill pipe deflection is increased to advance drilling, then drilling rate is improved, but wear and abuse in central regions increases
Solution Approach 1:
The drill pipe body sections are designed with inherent wear resistance and appropriate wall thickness to cushion against the increased wear and abuse resulting from higher deflection rates. This beforehand cushioning allows the pipe to withstand the harsher conditions enabled by faster drilling rates.
Data Source
AI summary
A tubular component (e.g., a drill pipe, work string pipe, etc.) with one or more hardbanding treatments on an external surface of the tubular component. One or more or all of the hardbanding treatments have a helical or spiral shape. The hardbanding treatment provides 1) enhanced durability to the central region of the tubular component at potentially lower costs, 2) enhanced strength and/or rigidity of the central region of the tubular component to reduce the amount of bending or flexing of the tubular component during the insertion and/or removal of the tubular component into/from a wellbore, and/or 3) improved fluid and debris flow about the central region of the tubular component.