Analysis of Application Parameters of Hydraulic Slotting Technology in Jointed Coal Reservoirs
Abstract
:1. Introduction
2. Optimization of Borehole Angles
2.1. Crack Initiation Criteria
2.2. Establishment of Model
2.3. Simulation Results and Analysis
3. Optimization of Slotting Parameters
3.1. Test System and Specimen Preparation
3.2. Effect of Slotting Parameters on Slot Shape
3.2.1. Effect of Pump Pressure on Slot Shape
3.2.2. Effect of Transverse Slotting Speed on Slot Shape
3.3. Effect of Slotting Parameters on Crack Development
4. Field Application
4.1. Application Details
4.2. Application Effect
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Properties | Values |
---|---|
Young’s Modulus (MPa) | 1750 |
Poisson’s ratio | 0.3 |
Density (kg.m−3) | 1400 |
Internal friction angle (°) | 23 |
Uniaxial compressive strength (MPa) | 13 |
Fracture toughness (MPa·m1/2) | 0.11 |
Initial porosity | 0.0186 |
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Ge, Z.; Zuo, S.; Wang, Y.; Lyu, Y.; Feng, X. Analysis of Application Parameters of Hydraulic Slotting Technology in Jointed Coal Reservoirs. Appl. Sci. 2019, 9, 5536. https://doi.org/10.3390/app9245536
Ge Z, Zuo S, Wang Y, Lyu Y, Feng X. Analysis of Application Parameters of Hydraulic Slotting Technology in Jointed Coal Reservoirs. Applied Sciences. 2019; 9(24):5536. https://doi.org/10.3390/app9245536
Chicago/Turabian StyleGe, Zhaolong, Shaojie Zuo, Yingwei Wang, Youchang Lyu, and Xinyan Feng. 2019. "Analysis of Application Parameters of Hydraulic Slotting Technology in Jointed Coal Reservoirs" Applied Sciences 9, no. 24: 5536. https://doi.org/10.3390/app9245536