Embedded-Cable Non-Metallic Oil Pipe for Wear and Torsion Resistance
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Solution Overview
Problem
Conventional petroleum mining processes require separate armored cables for power and signal transmission, leading to high costs, low operation efficiency, and frequent cable damage due to the narrow wellhole environment, especially in directional wells.
Innovation Solution
A non-metallic cabling continuous oil pipe design featuring an inner liner tube with embedded cable layers and a protection sleeve, utilizing reinforcement belts made of fiber and resin, and U-shape wear-resistant belts to prevent torsional deformation and wear, with spiral grooves and circumferential reinforcement layers for enhanced durability and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cables are laid separately outside oil pipes, then power and signal transmission can be achieved, but the cables require separate armoring which increases cost and reduces reliability
Solution Approach 1:
The patent merges the cable protection function into the oil pipe structure itself by creating a composite pipe where cables are embedded within the pipe wall. The pipe comprises an inner pipe, outer pipe, and reinforcement layers with cables positioned between them, eliminating the need for separate external armoring and fixing mechanisms.
Solution Approach 2:
The cables are nested within the multi-layered pipe structure, specifically positioned between the inner pipe and outer pipe, and surrounded by reinforcement belts and wear-resistant belts. This nested arrangement protects the cables while maintaining the integrity of the overall pipe system.
2Reliability
If cables are laid externally in narrow wellholes, then installation is possible, but the cables are easily worn and damaged during underground operations
Solution Approach 1:
The patent applies beforehand cushioning by incorporating wear-resistant belts (such as U-shaped wear-resistant belts) and reinforcement belts within the pipe structure that directly surround and protect the cables before they are exposed to the harsh wellhole environment. This pre-protection prevents wear and damage during installation and operation.
Solution Approach 2:
The cables are nested within the protective multi-layered pipe structure, surrounded by reinforcement layers and wear-resistant belts, isolating them from the harmful external environment of the narrow wellhole and directional drilling operations.
3Ease of operation
If separate fixing mechanisms are used for cables, then cable positioning is achieved, but operation efficiency decreases and cable damage risk increases
Solution Approach 1:
The patent combines the cable fixing and protection functions into the pipe structure itself. The reinforcement belts and wear-resistant belts are integrated into the pipe wall during manufacturing, providing both positioning and protection for the cables without requiring separate external fixing mechanisms.
Solution Approach 2:
The cables are positioned and protected during the pipe manufacturing process itself, rather than requiring separate installation steps. The reinforcement layers and wear-resistant belts are pre-applied to the pipe structure, and cables are embedded within them before the pipe is completed and installed in the wellhole.
Data Source
AI summary
A non-metallic cabling continuous oil pipe, relating to the technical field of oil mining in oil fields, is disclosed. Said oil pipe includes an inner liner tube, the inner liner tube which is used to form a passageway for medium transportation. An outer wall of the inner liner tube is provided with a cable embedded layer and a protection sleeve in sequence, the cable embedded layer including cables and a plurality of reinforcement belts. The reinforcement belts are used to resist torsional deformation and to bear an axial tension. The protection sleeve is used to prevent the cables from being worn.