搜索结果: 1-15 共查到“知识库 Borehole”相关记录19条 . 查询时间(0.125 秒)
Broadband waveforms and site effects at a borehole seismometer in the Po alluvial basin (Italy)
broadband data borehole seismometer site effect alluvial basin
2015/9/28
Broadband seismograms recorded at a borehole three-component (high dynamic range) seismic station in the Po Valley (Northern Italy) were analyzed to study the velocity structure of the shallow sedimen...
Deep-sea borehole seismological observatories in the western Pacific: temporal variation of seismic noise level and event detection
deep-sea borehole observatory broadband seismometer seismic noise level
2015/9/7
Seismological networks provide critical data for better understanding the dynamics of the Earth; however, a great limitation on existing networks is the uneven distribution of stations. In order to ac...
Drag-out effect of piezomagnetic signals due to a borehole:the Mogi source as an example
piezomagnetic effect borehole magnetic measurement the Mogi model Long Valley
2015/9/2
We show that using borehole measurements in tectonomagnetic experiments allows enhancement of the observed signals. New magnetic dipoles, which vary with stress changes from mechanical sources, are pr...
Variations in geoacoustic emissions in a deep borehole and its correlation with seismicity
geoacoustic emission deep borehole diurnal variation
2015/9/1
Continuous geoacoustic emission (GAE) measurements were acquired using a three-component geophone
placed in a borehole at a depth of near 1000 m at Petropavlovsk-Kamchatsky starting in August 2000. U...
Formation of a laccolith by magma pulses: Evidence from modal and chemical composition of the 500 m long borehole section through the Permo-Carboniferous Landsberg laccolith (Halle Volcanic Complex)
laccolith formation magma pulses rhyolite Halle Volcanic Complex
2017/4/10
The 500 m long section through the upper part of the Permo-Carboniferous Landsberg laccolith (Halle Volcanic Complex)
was sampled every 25 meters. The modal proportions between plagioclase and K-feld...
Lithological Study and Mapping of Barind Tract Using Borehole Log Data with GIS: In the Context of Tanore Upazila
Lithology Barind Tract Borehole Log Tanore
2013/3/5
In this paper the lithological study and mapping of Barind Tract is done by using irrigation boreholes log data in the context of an upazila under Barind Tract in northwest Bangladesh. Northwestern pa...
Analysis of rock mass borehole temperatures with vertical heat exchanger
geothermal heat pumps temperature laps rate thermal conductivity thermal resistance heat capacity
2014/2/25
The goal of the article is to analyze the distribution and changes of temperatures in boreholes with the rock mass/fluid tubular heat exchangers used as an energy source for the heat pump. It also aim...
The influence of gas storage parameters on gas emission rate from borehole
Borehole Gas flow rate Gas storage Original gas pressure Permeability coefficient
2012/3/31
Gas emission rate from borehole is one of the most important indexes for the coal and gas outburst prediction. The mathematical model of gas flow in the coal seam, gas flow into the measuring chamber,...
Hydrocarbon Volumetric Analysis Using Seismic and Borehole Data over Umoru Field, Niger Delta-Nigeria
Hydrocarbon Reservoir Bright and Dim Spots Well-to-Seismic
2013/3/6
Wireline signatures were used to identify hydrocarbon bearing sands and evaluate Petrophysical parameters for hydrocarbon pore volume determination. Well to seismic tie revealed that these reservoirs ...
Halogen chemistry of borehole water used in drinking troughs on game ranches in the Musina area, Limpopo Province, South Africa
Animal health hazard borehole water bromine chlorine fluorine iodine
2011/1/13
This study was initiated due to recent complaints of game farmers in the Musina area, Limpopo Province, South Africa regarding suspicious borehole water quality. Water samples obtained from 36 drinkin...
Temporal and spatial changes of radon concentration in borehole water
Temporal spatial changes radon concentration borehole water
2010/10/21
The 222Rn activity concentration in ground water from four boreholes was investigated from January 2006 to June 2008. The boreholes are situated in the region of the Astronomical and Geophysical Obser...
Radionuclide Contents and Physicochemical Water Quality Indicators in Stream, Well and Borehole Water Sources in High Radiation Area of Abeokuta, Southwestern Nigeria
Radionuclides Gamma Ray Spectroscopy Physicochemical Quality Drinking Water Quality High Background Radiation Radiation Ingestion Effective Dose
2013/3/20
Water samples from streams, hand-dug wells and boreholes in high background radiation areas in Abeokuta, Nigeria have been collected in order to determine the activity concentrations of 40K, 226Ra and...
Borehole climatology：a discussion based on contributions from climate modeling
Borehole climatology climate modeling
2009/12/3
Progress in understanding climate variability through the last millennium leans on simulation and reconstruction efforts. Exercises blending both approaches present a great potential for answering que...
RESISTIVITY IMAGING AND BOREHOLE INVESTIGATION OF THE BANTING AREA AQUIFER, SELANGOR, MALAYSIA
RESISTIVITY IMAGING BANTING AREA AQUIFER BOREHOLE INVESTIGATION
2009/10/13
Rapid industrialization in Selangor has increased the demand for water in recent years. Twodimensional resistivity imaging surveys were carried out as part of a groundwater study in the Banting area, ...
Borehole Drying: A Review of the Situation in the Voltaian Hydrogeological System in Ghana
Borehole Sustainability Community Water Supply Ghana Groundwater Recharge and Depletion Voltaian System
2013/3/21
Groundwater development for potable water supply for rural people in Africa especially in Ghana has in-creased significantly over the past decades. The area underlain by the Paleozoic sedimentary form...