Phase Transition Fracturing Effect Determination for Deep Rock
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Solution Overview
Problem
Current technologies are unable to quantitatively evaluate fracturing parameters such as high-energy gas filling amounts, shear slices with different blasting pressures, and gas fracturing under varying geological stress conditions, which hinders the achievement of effective fracturing effects and engineering stability in deep rock engineering disaster protection.
Innovation Solution
A fracturing effect determination method and device for phase transition fracturing deep rock, which involves obtaining initial and test data from true triaxial rock samples, analyzing acoustic emission information during fracturing, and using a preset formula to generate quantitative data on fracturing effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If high-energy gas fracturing technology is applied to deep rock, then rock mass fracturing effect is improved and rock burst prevention capability is enhanced, but the ability to quantitatively evaluate fracturing parameters is insufficient
Solution Approach 1:
The patent implements a feedback mechanism by using acoustic emission monitoring during fracturing processes to collect real-time data on crack development and rock response. This feedback information is then used to adjust and optimize fracturing parameters, enabling quantitative evaluation of fracturing effects and ensuring both effectiveness and engineering stability in deep rock disaster protection
Solution Approach 2:
The patent replaces traditional mechanical evaluation methods with acoustic emission detection technology. By substituting direct mechanical measurement with acoustic signal analysis, the system achieves non-contact, real-time quantitative evaluation of fracturing parameters, resolving the contradiction between achieving strong fracturing effects and maintaining measurement precision
2Productivity
If different high-energy gas filling amounts and blasting pressures are used, then fracturing effectiveness is improved, but the complexity of parameter optimization increases
Solution Approach 1:
The patent applies dynamic optimization by establishing a parameter adjustment mechanism that adapts fracturing parameters based on real-time acoustic emission data. Instead of using fixed, complex parameter sets, the system dynamically adjusts gas filling amounts and blasting pressures according to actual rock response, simplifying the optimization process while maintaining high fracturing effectiveness
Solution Approach 2:
The patent systematically varies key parameters such as gas filling amount, blasting pressure, and phase transition conditions to identify optimal fracturing configurations. By methodically changing these parameters and measuring their effects through acoustic emission monitoring, the patent achieves high productivity while managing optimization complexity through structured parameter exploration
3Measurement precision
If acoustic emission monitoring and multiple test parameters are measured, then measurement precision of fracturing effects is improved, but device complexity and test system complexity increase
Solution Approach 1:
The patent employs acoustic emission monitoring equipment that serves multiple functions simultaneously: detecting crack initiation, tracking crack propagation, evaluating fracturing completeness, and providing feedback for parameter optimization. This multi-functional approach achieves high measurement precision without proportionally increasing device complexity, as a single acoustic emission system performs multiple measurement tasks
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This method and device enable the quantitative optimization of technical parameters for energy release prevention and control in deep engineering rock masses, ensuring effective fracturing effects and engineering stability in deep rock engineering disaster protection.
Implementation Method 1
High-energy gas fracturing represented by liquid carbon dioxide
Implementation Method 2
fracturing true triaxial rock and obtaining acoustic emission information in the fracturing process
Data Source
AI summary
A fracturing effect determination method for phase transition fracturing deep rock, comprising: obtaining initial data of a true triaxial rock of a fracture hole; fracturing true triaxial rock and obtaining acoustic emission information in the fracturing process; obtaining test data of the true triaxial rock after fracturing; inputting initial data and test data into a preset formula to generate test data; determining quantitative data of fracturing according to acoustic emission information and test data and determining the fracturing effect of true triaxial rock according to the quantitative data of fracturing. The method is implemented using a device comprising a carbon dioxide fracturing device, a true triaxial loading device, a fracturing starter, a storage tank, and a liquid filling device. The device is configured to achieve the quantitative optimization effect of the technical parameters required for the prevention and control measures of energy release in deep engineering rock mass