Results 11 to 20 of about 136,634 (354)

Analysis of the Borehole Effect in Borehole Radar Detection [PDF]

open access: yesSensors, 2020
The directional borehole radar can accurately locate and image the geological target around the borehole, which overcomes the shortcomings that the conventional borehole radar can only detect the depth of the target and the distance from the borehole ...
Wentian Wang   +3 more
core   +4 more sources

Numerical simulation on borehole breakout and borehole size effect using discrete element method

open access: yesInternational Journal of Mining Science and Technology, 2020
Estimation of horizontal stress magnitudes from borehole breakouts has been an attractive topic in the petroleum and mining industries, although there are critical research gaps that remain unfilled.
H Lin, Joung Oh, Ismet Canbulat
exaly   +2 more sources

Experimental and measured research on three-dimensional deformation law of gas drainage borehole in coal seam

open access: yesInternational Journal of Mining Science and Technology, 2020
Using self-researched gas drainage borehole stability dynamic monitoring device, three-dimensional deformation characteristics of borehole under steady vertical load were researched experimentally and systematically.
Hongbao Zhao, Jinyu Li, Hui Cheng
exaly   +2 more sources

Fault associated with the 1967 M 6.3 Koyna earthquake, India: A review of recent studies and perspectives for further probing

open access: yesJournal of Asian Earth Sciences: X, 2022
The Koyna region in western India, characterized by recurrent seismic activity over more than five decades and confined largely within a 20 km × 30 km area and ∼10 km in depth, is a classical site to study earthquake processes.
Kunal Modak   +4 more
doaj   +1 more source

The 2020 earthquake sequence and seismic hazard scenario of Mizoram state in northeast India

open access: yesFrontiers in Earth Science, 2022
The Mizoram state of India lies in close proximity to the active Indo-Burma subduction zone and had experienced several moderate to large earthquakes, including the M7 event in 1938. Since 2015, only two events with 5<M<6 have occurred in the area,
Brijesh K. Bansal   +2 more
doaj   +1 more source

Numerical modelling of deep coaxial borehole heat exchangers in the Cheshire Basin, UK

open access: yesComputational Geosciences, 2021
Few deep geothermal wells have been drilled in the Cheshire Basin resulting in high geological and financial risks of such developments. In recent years the focus of exploiting deep geothermal resources in the UK has moved towards lower risk strategies ...
C. Brown   +3 more
semanticscholar   +1 more source

Performance of the Wireline Heave Compensation System Onboard D/V JOIDES Resolution [PDF]

open access: yesScientific Drilling, 2013
No abstract available.
G. Iturrino   +13 more
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

Age–depth model of the past 630 kyr for Lake Ohrid (FYROM/Albania) based on cyclostratigraphic analysis of downhole gamma ray data [PDF]

open access: yesBiogeosciences, 2015
Gamma ray (GR) fluctuations and potassium (K) values from downhole logging data obtained in the sediments of Lake Ohrid from 0 to 240 m below lake floor (b.l.f).
H. Baumgarten   +8 more
doaj   +1 more source

Quantifying the technical geothermal potential from shallow borehole heat exchangers at regional scale

open access: yesRenewable Energy, 2021
The extraction of shallow geothermal energy using borehole heat exchangers (BHEs) is a promising approach for decarbonisation of the heating sector. However, a dense deployment of BHEs may lead to thermal interference between neighbouring boreholes and ...
A. Walch   +3 more
semanticscholar   +1 more source

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