We have analyzed the geoelectric response produced by three cavities cut into different geological substrata of granite, phyllite, and sandstone that had previously been characterized by direct methods. We also examined a mining void excavated in granite. In each case, we applied three different geoelectric arrays (Wenner-Schlumberger, Wenner and dipole-dipole) and several inter-electrode spaci...

Six ERI profiles using Wenner Schlumberger array were carried out at Baghdad University (ALJadiriya campus) to investigate soil two sites. The spacing between electrodes of four surrounding the new building in Campus first site is 1 m, and profile length ranges from 50 90 m. In comparison, across garden detect water seepage site. inverted model studied shows many high low resistivity zone. sedi...

Electrical resistivity method was used in carrying out geophysical investigations at the Centre for Energy Research and Training (CERT), Ahmadu Bello University, Zaria, with a view of determining the depth to the bedrock, thickness of the top soil and weathered basement.Vertical Electrical Sounding (VES) using Schlumberger array was carried out at forty (40) VES stations. ABEM terrameter (SAS 3...

A geophysical investigation involving the vertical electrical sounding (VES) electrical resistivity methods was carried out around Pydibhimavaram Industrial area Srikakulam district Andhra Pradesh. Vertical Electrical Sounding (VES) using Schlumberger array was conducted at thirteen (13) VES stations. The study was carried out with a view to determine the subsurface layer parameters (resistivit...

Allan Twynam BP Sunbury, England For help in preparation of this article, thanks to Curtis Boney, Ernie Brown, Steve Davies and George Hawkins, Sugar Land, Texas, USA; Jorge Gonzalez and Arthur Milne, Caracas, Venezuela; Satyaki Ray, Calgary, Alberta, Canada; and David Schoderbek, Burlington Resources Canada, Calgary. ClearFRAC, ClearPAC, CoalFRAC, FMI (Fullbore Formation MicroImager), FracCADE...

The Schlumberger Cluster (donated by Schlumberger Inc.) delivers high performance computing, grid infrastructure, very large data storage, and advanced visualization services through the School of Sciences and Engineering at the American University in Cairo. It is a production cluster that provides cost-effective computational power to a wide range of scientific, engineering, and interdisciplin...

Discipline: Sciences du vivant Spécialité: Aspects moléculaires et cellulaires de la biologie par Sophie Schlumberger Caractérisation des récepteurs de l'hormone de mélano-concentration (MCH) Soutenue le 26 juillet 2002 à 14 heures, devant le jury composé de:

shear and compressional wave velocities along with other petrophysical logs, are considered as upmost important data for hydrocarbon reservoirs characterization. shear wave velocity (vs) in well logging is commonly measured by some sort of dipole logging tools, which are able to acquire shear waves as well as compressional waves such as sonic scanner, dsi (dipole shear sonic imager) by schlumbe...