A computer program is presented that calculates thicknesses and resistivities of a layered earth from three different variations of Schlumberger arrangements: (1) The usual Schlumberger method with 4 electrodes at the surface. (2) Lake bottom arrangement: 4 electrodes at the bottom of waters like lakes, rivers or the sea. (3) Two potential electrodes at the same depth in the ground and two elec...

Abstract There is no doubt about the presence of iron sand around west coast West Sumatra. Several studies have been carried out, but in Ulakan Tapakis area still under observation, and investigation its potential distribution. One methods that can provide models subsurface descriptions using goelectrical resistivity method. The geoelectrical application was used Wenner-Schlumberger array into ...

For help in preparation of this article, thanks to Austin Boyd, Gabriela Leu and Romain Prioul, Boston; Ray Kennedy, Edmonton; Patrice Ligneul, Dhahran, Saudi Arabia; John McCullagh, Sugar Land, Texas, USA; Guillemette Picard, Clamart, France; Raghu Ramamoorthy, Abu Dhabi, UAE; and Alan Sibbit, Moscow. Thanks also to the participants of the May 2007 Schlumberger Wettability Workshop, Bahrain. E...

SCHLUMBERGER is a large, multinational corporation concerned primarily with the measurement, collection, and interpretation of data. For the past fifty years, most of its activities have been related to hydrocarbon exploration. The efficient location and production of hydrocarbons from an underground formation requires a great deal of knowledge about the formation, ranging in scale from the siz...

Abstract The quality of groundwater standards in Muttom–Mandaikkadu coastal stretch is the focus present study, whose aquifers are particularly at risk due to intrusion marine water. Thirty samples were scrutinized for assessment physical and chemical parameters during January June. Hydrochemical characteristics spatially depicted understand spatial variations such as (pH, EC, TDS, Na + , K Ca ...

because of urgent needs of groundwater resources in the tochal region of north tehran, an integration of electric and electromagnetic methods was applied to investigate the location and the direction of water bearing fractures. first, the vlf electromagnetic profiling was performed on suitable places and two locations were detected for supplementary resistivity surveys. then, a number of vertic...

At Schlumberger RPS, the application of the Goal/Question/Metric approach (GQM) and the Quality Improvement Paradigm (QIP) resulted in an enhanced ‘model-based GQM’. It customizes measurement to the organization and supports in the reuse of experience, by applying and maintaining reusable reference models. This ‘model-based GQM’ is a more formal method for the application of software measuremen...