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Schlumberger NV (French: [ʃlumbɛʁʒe, ʃlœ̃b-]), doing business as SLB, also known as Schlumberger Limited, [2] is a global technology company. As of 2022, it is both the world's largest oilfield services company and the world's leader in digital solutions for subsurface and surface engineering.
Induced polarization is a geophysical method used extensively in mineral exploration and mining operations. Resistivity and IP methods are often applied on the ground surface using multiple four-electrode sites. In an IP survey (and when making resistivity measurements), capacitive properties of the subsurface materials are determined as well.
Exploration geophysics is an applied branch of geophysics and economic geology, which uses physical methods at the surface of the Earth, such as seismic, gravitational, magnetic, electrical and electromagnetic, to measure the physical properties of the subsurface, along with the anomalies in those properties. It is most often used to detect or ...
Vertical electrical sounding (VES) is a geophysical method for investigation of a geological medium. The method is based on the estimation of the electrical conductivity or resistivity of the medium. The estimation is performed based on the measurement of voltage of electrical field induced by the distant grounded electrodes (current electrodes).
Inge Lehmann (Danish, 1888–1993) – seismologist who discovered the Lehmann discontinuity and argued for a solid inner core. Xavier Le Pichon (French, 1937– ) – constructed history of plate motions. Royden Charles Lilwall (British, 1944-2023) - Geophysicist / seismologist locating the epicenter of earthquakes.
Two short papers of his drew the attention of the brothers Conrad and Marcel Schlumberger. They were at that time the pioneers of this field in Europe and had just founded the geophysical prospecting company bearing their name, which has developed since into the world leading Schlumberger Limited. Ștefănescu entered into a direct ...
Schlumberger brothers. Conrad Schlumberger (2 October 1878 in Gebweiler (Alsace-Lorraine) – 9 May 1936 in Stockholm) and Emile Henry Marcel Schlumberger (21 June 1884 in Gebweiler – 9 May 1953 in Val-Richer) were brothers from the region of Alsace-Lorraine, France, then a part of the German Empire. Their inventions in the area of geophysics ...
Term. August 2019-. Predecessor. Paal Kibsgaard. Board member of. Schlumberger. Olivier Le Peuch (born 1963/1964) is a French businessman, and the chief executive officer (CEO) of Schlumberger, the world's largest oilfield services company, effective 1 August 2019. [2]