THERMAL SCIENCE
International Scientific Journal
VARIATION LAW OF WATER LEVEL IN WATER INJECTION DRILL UNDER THE INFLUENCE OF MINING IN DATONG MINING AREA
ABSTRACT
In view of the variation law of water level in water injection drill between double-system layers of hard rock strata in Datong mining zone, the failure process and mechanism of boreholes during propulsion are analyzed by the numerical simulation and the test measurement in this paper. After the coal seam is fully mined, it can be divided into the advanced deformation zone, the bending deformation zone and the compaction stable zone. Borehole damage intensifies from top to bottom. The junction of siltstone and sandy mudstone is a high-risk position. The results are verified by the water level measurement and the borehole peeping.
KEYWORDS
PAPER SUBMITTED: 2020-04-23
PAPER REVISED: 2020-06-29
PAPER ACCEPTED: 2020-08-09
PUBLISHED ONLINE: 2021-12-24
THERMAL SCIENCE YEAR
2021, VOLUME
25, ISSUE
Issue 6, PAGES [4407 - 4414]
- Liu, S. Q., et al., Technology Process and Application Prospect of Underground Coal Gasification, Earth Science Frontiers, 23 (2006), pp. 97-102
- Dong, M., et al., Research on Coordinated Exploitation for Resources Overlap Area of Oil-Gas and Coal in Ordos Basin, China Energy and Environmental Protection, 2 (2017), 19, pp. 101-104
- Cao, Z. Z., et al., Joint Bearing Mechanism of Coal Pillar and Backfilling Body in Roadway Backfilling Mining Technology, Computers, Materials & Continua, 54 (2018), 2, pp. 137-159
- Xue, Y., et al., Analysis of Deformation, Permeability and Energy Evolution Characteristics of Coal Mass around Borehole after Excavation, Natural Resources Research, 29 (2020), 5, pp. 3159-3177
- Xue, Y., et al., Investigation of the Influence of Gas Fracturing on Fracturing Characteristics of Coal Mass and Gass Exctraction Efficiency Based on a Multi-Physical Field Model, Journal of Petroleum Science and Engineering, 206 (2021), Nov., pp. 109018
- Jiang, S. Y., et al., Analysis on Comprehensive Protection and Utilization of Resources in Large Onshore Sedimentary Basin, Natural Resource Economics of China, 32 (2019), 2, pp. 59-62
- Xue, Y., et al., Productivity Analysis of Fractured Wells in Reservoir of Hydrogen and Carbon Based on Dual-Porosity Medium Model, International Journal of Hydrogen Energy, 45 (2020), 39, pp. 20240-20249
- Ren, B., et al., Deformation and Prevention of Ground Drilling Deformation in Deep Wells with Thick Surface Layer and Pressure Relief Mining - A Case Study of Guqiao Mine in Huainan, Coal Geology & Exploration, 46 (2018), 5, pp. 159-166
- Liu, J., et al., Numerical Evaluation on Multiphase Flow and Heat Transfer during Thermal Stimulation Enhanced Shale Gas Recovery, Applied Thermal Engineering, 178 (2020), Sept., pp. 115554
- Shen, J., et al., Study of Methane Drainage Borehole Destruction Induced by Rock Strata Movement, Safety in Coal Mines, 41 (2010), 3, pp. 1-4
- Peng, S., et al., Borehole Casing Failure Analysis in Unconsolidated Formations: A Case Study, Journal of Petroleum Science and Engineering, 59 (2007), 3, pp. 226-238
- Whittles, D. N., et al., Influence of Geotechnical Factors on Gas Flow Experienced in A UK Longwall Coal Mine Panel, International Journal of Rock Mechanics & Mining Sciences, 43 (2006), 3, pp. 369-387
- Sun, H. T., et al., A Model of Shear Slipping of Overlying Strata Under Mining Disturbance, Rock and Soil Mechanics, 31 (2010), 2, pp. 609-614
- Shen, W. L., et al., Prediction of Relative Displacement for Entry Roof with Weak Plane Under the Effect of Mining Abutment Stress, Tunnelling and Underground Space Technology, 71 (2018), Jan., pp. 309-317
- Xue, Y., et al., Influence of CH4 Adsorption Diffusion and CH4-Water Two-Phase Flow on Sealing Efficiency of Caprock in Underground Energy Storage, Sustainable Energy Technologies and Assesments, 42 (2020), 100874
- Su, H., et al., Stability Characteristics Analysis of Large Diameter Surface Drilling Wellbore and Engineering Control, Safety in Coal Mines, 46 (2015), 11, pp. 189-192
