Results 31 to 40 of about 237,953 (402)

Chemical and Noble Gas Isotope Compositions of Formation Gases from a 3 km Deep Scientific Borehole in the Koyna Seismogenic Zone, Western India

open access: yesGeofluids, 2019
A 3 km deep research borehole KFD1 was drilled in the Koyna reservoir-triggered seismicity region, Western India, between December 2016 and May 2017.
Nagaraju Podugu   +3 more
doaj   +1 more source

Optimization of the utilization of deep borehole heat exchangers

open access: yesGeothermal Energy, 2020
Deep-borehole heat exchangers (DBHE) are generally coaxial pipes installed in deep boreholes and has become an alternative approach to utilize geothermal energy.
Sheng Pan   +4 more
semanticscholar   +1 more source

Experimental study of the thermal reaming of the borehole by axial plasmatron [PDF]

open access: yes, 2019
Purpose. To study rock spallation dynamics in the process of the borehole thermal reaming and analyze energy consumption of the borehole thermal reaming process by plasma jets of the axial plasmatron. Methods. Field experimental study of rock spallation
Dhunnoo, N   +6 more
core   +1 more source

Temperature regime of upper layer of the glacier East Grönfjordbreen (West Svalbard)

open access: yesЛëд и снег, 2015
Data of thermometry performed in boreholes of the glacier East Grönfjordbreen situated in West Svalbard are presented. The measurements were made within the ice upper layer down to 20 m in spring and summer of 2012–2014.
R. A. Chernov   +2 more
doaj   +1 more source

The Response Mechanism of Borehole Shear-Horizontal Transverse-Electric Seismoelectric Waves to Fluid Salinity

open access: yesApplied Sciences, 2022
The converted electric field in the seismoelectric effect can be used to monitor the salinity of the reservoir. Compared to some conventional excitation methods (e.g., Monopole source), the response law of borehole shear-horizontal transverse-electric ...
Weihao Wang   +4 more
doaj   +1 more source

Hydrogeochemical attributes and ground water quality of Ngbo Community in Ohaukwu Area Council, Ebonyi State, Nigeria

open access: yesRevista Ambiente & Água, 2015
This study evaluated the hydrogeochemical attributes and quality of groundwater resources in Ngbo, Ohaukwu Area Council of Ebonyi State, Nigeria in order to determine whether boreholes in the area were suitable for potable uses.
Omaka Ndukaku Omaka   +2 more
doaj   +1 more source

Deformation Characteristics of Tianjiaba Landslide Induced by Surcharge

open access: yesISPRS International Journal of Geo-Information, 2021
The Tianjiaba landslide on the Hang Rui expressway was located in the south of Sinan County, Tongren City, Guizhou Province. From the night of 2 July to the morning of 3 July 2011, numerous house cracks, foundation subsidence, and surface cracks suddenly
Longju Zhang   +4 more
doaj   +1 more source

Trial of liquidation cementation of boreholes at Carpathians oil and gas deposits

open access: yesBudownictwo i Architektura, 2015
Complex geological structure as well as long-term intensive operation of oil and gas deposits in Borislav-Pokutska zone of Carpathians leads to changes in thermo-dynamical parameters of pools, rock deformation and, as a result, to crippling of the ...
M. Kovalchuk   +4 more
doaj   +1 more source

Modeling of fiber circumplacement around a hole using a streamline approach

open access: yesUniversal Journal of Mathematics and Applications, 2018
The insertion of holes into laminates can be done by producing a fiber reinforced composite plate and, subsequently, drilling the borehole. Alternatively, we can bypass the fibers around the final hole before injecting the matrix material.
Ali Kheiri Marghzar, Stefan Hartmann
doaj   +1 more source

Research progress of gas drainage boreholes sealing materials and matching technology in underground coal mine

open access: yesMeikuang Anquan, 2021
It was one of the hot spots that coal mine safety technicians were competing for studying the suitable sealing material and its matching technology for gas drainage and drilling with the characteristics of coal mine gas occurrence conditions fully ...
YAN Wenxue, CHENG Bo
doaj   +1 more source

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