Flexible Fracturing Pipe With Removable Liner for Leak Resistance
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Solution Overview
Problem
Conventional rigid pipes used in well fracture systems face issues such as misalignment, vulnerability to vibrations, increased space requirements, complex assembly, susceptibility to leaks and erosion, and frequent replacements due to damage from corrosive and erosive fluids.
Innovation Solution
Flexible piping systems with a removable internal liner, comprising multiple outer layers and a primary liner, which allows for flexible connection of equipment and monitoring of liner integrity through sensors, reducing the need for direct alignment and minimizing damage from corrosive fluids.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If rigid pipes are connected along direct paths, then assembly time and space requirements are reduced, but the pipes become vulnerable to vibrations and misalignment issues
Solution Approach 1:
The patent replaces rigid pipes with flexible hoses that can bend and flex to accommodate vibrations and misalignment while maintaining direct connection paths. The flexible hose absorbs vibrational energy and adapts to positional variations without requiring complex angular routing, thus reducing assembly time while maintaining reliability.
2Reliability
If rigid pipes are connected along redundant, angular paths, then vibration resistance and misalignment compensation are improved, but assembly complexity and leak risk increase
Solution Approach 1:
The flexible hose provides a simple, direct connection that inherently handles misalignment and vibration through its flexibility, eliminating the need for complex angular paths and multiple rigid pipe segments. This reduces the number of joints and connection points, thereby reducing assembly complexity and leak risk.
Solution Approach 2:
The flexible hose can be manufactured in modular segments that can be easily connected using couplings, allowing for simple assembly without complex angular routing. The segmentation enables easy installation while maintaining vibration resistance through the flexible material properties.
3Adaptability or versatility
If multiple rigid pipe segments are joined together, then misalignment and vibration issues are addressed, but the number of joints increases leading to more potential leak points
Solution Approach 1:
The flexible hose provides continuous misalignment compensation along its entire length through its inherent flexibility, eliminating the need for multiple rigid pipe segments and joints. This continuous flexible connection maintains adaptability while significantly improving leak resistance by removing numerous potential failure points.
Data Source
AI summary
A flexible pipe includes one or more outer layers, a primary liner disposed internal to the one or more outer layers, and a removable liner disposed internal to the primary liner. Additionally, a flexible piping system includes the flexible pipe with a first end and a second end. Further, an annulus is disposed between the primary liner and the removable liner. Furthermore, a pressure port is provided and extends from the annulus to an outer surface of the flexible piping system. An end fitting is disposed at the first end of the flexible pipe.