...Forward modelling of direct-current resistivity data on unstructured grids using an adaptive mimetic nite-difference method Hormoz Jahandari , and Colin G. Farquharson, Memorial University of Newfoundland, and Peter Lelie`vre, Mount Allison University SUMMARY (Ren and Tang, 2010; Ren et al., 2018...

... development and management in the area Presentation Date: Wednesday, October 17, 2018 Start Time: 8:30:00 AM Location: 213B (Anaheim Convention Center) Presentation Type: Oral sedimentary terrain thickness upstream oil & gas aizebeokhai resistivity data seg international exposition...

... inversion log analysis drilling measurement workflow drilling data acquisition resistivity data reservoir scale resistivity anisotropy evaluation resistivity anisotropy evaluation low angle well well logging evaluation seg seg international exposition sensitivity inversion-based workflow...

... for construction of wastewater treatment plant at New Assiut City, Egypt. Egypt is affected by moderate seismic activity compared to other countries, nevertheless it is exposed to a high seismic risk. The results of the inverted 2D electrical resistivity data and seismic hazard asseesmnet showed three distinct...

... subsurface log analysis creek superfund site drainage flow path fracture low resistivity contamination us government resistivity value reservoir simulation reservoir characterization resistivity survey subsurface ottawa county resistivity data Identifying Preferential Acid Mine Drainage Flow...

... and model noise. The damaging effects from both causes of temporal smear can be dampened with rapid and continuous data acquisition. seg denver 2014 snapshot target model reservoir characterization spatial resolution estimation upstream oil & gas artificial intelligence resistivity data...

... batholith reference list upstream oil & gas resistivity data geophysics granite seg denver 2014 hydrologic interpretation reservoir characterization water management p-wave velocity university Constraining hydrologic interpretations using near-surface geophysical methods Brady Flinchum*, W...

... during the construction of the inverse of model covariance. image feature geological cross-section reservoir characterization constraint artificial intelligence seg denver 2014 orientation zhou log analysis electrical resistivity data synthetic example inversion inversion result...

... Summary We present an algorithm for the joint inversion of surface wave, P-wave refraction ad apparent resistivity data. The algorithm solves the model parameters imposing the same earth structure as well as the respect of some petrophysical relationships. P- and S-wave velocities are linked...

... Summary Resistivity data collected in towns or industrial settings suffers much in data quality because of the noise introduced by the infrastructural anthropic elements. The influence of this noise is heavily felt on the inversion process, where the obtained models can be far from reality...

... Summary Using an electrical resistivity array we mapped variations in the weathered subsurface at Dayspring Children’s Village and tentatively identify several significant fractures. The weathered zone is significantly thicker to the west. Time-lapse electrical resistivity data were used...

... and the end of the rainy season. groundwater health & medicine aquifer temporal variation diabase sill resistivity data dry season geoscience september 2009 significant variation magnetic data effect tree species reservoir characterization drilling fluid management & disposal...

.... These trees are known to consume large quantities of water and we propose to investigate the effect of these trees on the local groundwater hydrology. We have collected electrical resistivity data at the site both at the end of the dry season and at the end of the rainy season. There are changes in both...

... environment of a crystalline basement in low latitude areas using RES2DMOD code. Different minimum electrode separations and inter-line spacing were used with a view of determining the optimum inter-line spacing relative to the minimum electrode separation. The 2D apparent resistivity data were collated to 3D...

... the EM field in vertical direction and therefore can provide the deep-reading resistivity data. It allows directing the EM energy into the formation, similar to the acoustic beam used in the seismic exploration. Thus, it enables higher spatial resolution and greater depth of investigation than...

... nitrate concentration solid waste management nitrate concentration electrode resistivity electrical resistivity main menu electrical resistivity electrical conductivity conductivity upstream oil & gas resistivity data crib nitrate plume bc crib reference list strength plume...

...A data-domain correlation approach for joint inversion of time-lapse hydraulic head, fluid conductivity, and electrical resistivity data Timothy C. Johnson, Roelof J. Versteeg, and Hai Huang Energy Resource Recovery and Management Idaho National Laboratory P.O. Box 1625 Idaho Falls, ID 83415-2107...

..., Idaho; we study seasonal changes in saturation using the time-lapse DC resistivity method. Four DC resistivity data sets were acquired between October 2005 and July 2006 to monitor the changes in conductivity. The results indicate that DC resistivity is a cost-effective tool to characterize a watershed...

... on the elastic contrast in the subsurface are predominantly affected by porosity and mineralogy. Seismic data may also help discriminate between a wet and hydrocarbon-saturated reservoir but often fail to quantify the amount of hydrocarbon. Resistivity data, on the other hand, react to both porosity...

... rock sample flow rate reservoir characterization electric exploration chemical flooding methods equation subsurface storage exploration pressure vessel sequestration co 2 resistivity resistivity data electrode sandstone upstream oil & gas electric resistivity rock specimen...