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Advanced Search Results For "GAS well drilling"

1 - 10 of 12,664 results for
 "GAS well drilling"
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Research on Optimization of Large Flow Hydraulic Punching Process in Zhaozhuang Mine.

Publication Type: Academic Journal

Source(s): Geofluids. 12/29/2022, Vol. 2022, p1-14. 14p. 1 Black and White Photograph, 3 Diagrams, 4 Charts, 16 Graphs, 1 Map.

Abstract: Taking hydraulic punching test of Zhaozhuang Mine as engineering background, by comparing the field application effects of different hydraulic punching processes, the relationship between coal moisture content around the borehole blockage and gas extra...

Numerical Assessment on Unloading Disturbance and Gas Extraction in Remote Distance Protective Layer Mining.

Publication Type: Academic Journal

Source(s): Geofluids. 8/16/2022, p1-17. 17p. 2 Color Photographs, 2 Diagrams, 8 Charts, 16 Graphs.

Abstract: Protective layer mining could not only significantly alter geostress but also increase the permeability of protected layer, which is beneficial for the coal gas extraction rate and ensures coal mining safety. However, due to unique geologic conditions,...

Numerical Optimization of Drilling Parameters for Gas Predrainage and Excavating-Drainage Collaboration on Roadway Head.

Publication Type: Academic Journal

Source(s): Geofluids. 5/20/2022, p1-10. 10p. 2 Diagrams, 2 Charts, 3 Graphs.

Abstract: In order to improve efficiency of gas drainage, the reasonable layout parameters for borehole on roadway head are investigated. Assuming that the coal mass has a dual pore structure with fractures and pores, a multiphysical field coupling mathematical ...

Capsule-Bag-Type Sealing Technology for Gas Drainage Boreholes and Its Application.

Publication Type: Academic Journal

Source(s): Geofluids. 5/14/2022, p1-14. 14p. 4 Color Photographs, 5 Diagrams, 13 Graphs.

Abstract: In gas control, the quality of drilling and sealing plays a key role in the final effect of gas drainage. This paper first studies the mechanism of hole leakage and the stability of the hole sealing section. At the same time, the bag-type grouting hole...

Research on Gas Extraction Technology of Directional Long Borehole in Ultrathick Coal Seam.

Publication Type: Academic Journal

Source(s): Geofluids. 3/14/2022, p1-12. 12p. 5 Color Photographs, 3 Black and White Photographs, 3 Graphs.

Abstract: Gas extraction is an important way to control gas disasters. The effect of traditional gas extraction drilling on ultrathick coal seam is not well. In order to improve the rate of gas extraction, directional long drilling is used to replace conventiona...

Indirect Cost Estimation of Winter Storm–Induced Power Outage in Texas.

Publication Type: Academic Journal

Source(s): Journal of Management in Engineering. Nov2022, Vol. 38 Issue 6, p1-8. 8p.

Abstract: In February 2021, Texas was hit by a severe winter storm. The extreme cold weather triggered an unprecedented increase of electricity demand and simultaneous failure of multiple electricity grid components. The dual effect caused a widespread power out...

Research on the Determination Technology of Key Position of Sealing Holes for Gas Extraction Drilling in Zhangcun Coal Mine.

Publication Type: Academic Journal

Source(s): Advances in Civil Engineering. 4/29/2022, p1-10. 10p.

Abstract: In view of the problem of how to determine the position of the sealing hole and increase the concentration of gas extraction, this article proposes the use of a high-pressure gas attenuation method to test the key sealing position and the comparison te...

Coal and Gas Comining in the High-Gas Detong Mine, China: Analytical and Numerical Parameter Optimization of Gas Extraction Boreholes.

Publication Type: Academic Journal

Source(s): Advances in Civil Engineering. 3/4/2022, p1-12. 12p.

Abstract: The upper corner gas overrun caused by goaf gas gushing in the high-gas mine can be mitigated by roof positioning of long boreholes in the goaf fracture zone, creating an artificial gas migration channel and achieving safe comining of coal and gas. Thi...

Research on Drilling and Sealing Technology for Cross Bedding of Superthick Coal Seam.

Publication Type: Academic Journal

Source(s): Advances in Civil Engineering. 2/1/2022, p1-10. 10p.

Abstract: Gas disasters have been affecting coal mine safety production. With the gradual deepening of coal resources development, whether gas extraction meets the standard is particularly important. In view of the low extraction efficiency, through theoretical ...

Research on Influencing Factors of Effective Gas Extraction Radius in Coal Mine Based on Multiple Linear Regression.

Publication Type: Academic Journal

Source(s): Advances in Materials Science & Engineering. 1/28/2022, p1-13. 13p.

Abstract: In order to analyze the influence degree of different factors on gas extraction radius, on the basis of coal seam gas flow theory and elastic mechanics, considering the influence of coal seepage rate change on gas flow, the COMSOL Multiphysics numerica...