The respirometer is shown in Fig. 1. The cathode was made from gold wire of 0.51 mm diam which was coated with glass of low melting point (4). After mounting the cathode as shown in Fig. 1, the gold and its glass coating were ground to a flat surface and polished using a series of carborundum grinding powders. The cathode was maintained at -0.45 V with respect to the calomel electrode. The elec...

The present paper consists in two parts, determined by the historical emerging production of Dipole Sonic Imager (DSI) measurements and results early 1990’s. DSI data were processed following methods simultaneously developed France USA Schlumberger . In first part dipole sonic S-wave velocity obtained late 1993 are confronted with other borehole scientific MM-1, entirely cored extensively logge...

■ Fully automatic operation From the world’s first commercial CO2 membrane plant for CO2 recovery in EOR applications (Scurry Area Canyon Reef Operators [SACROC] oil field) to the world’s largest CO2 membrane plant for natural gas cleanup (1.28 Bcf/d, Cakerawala Gas Field Development—Petronas Carigali Hess Operating Company), Schlumberger continues to lead the industry with state-of-the-art CYN...

Scott M. Zoldi,* Jun Liu, Kapil M. S. Bajaj, Henry S. Greenside, and Guenter Ahlers Theoretical Division and Center for Nonlinear Studies, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 Schlumberger ATE, M/S 930, 1601 Technology Drive San Jose, California 95110 Department of Physics and Center for Nonlinear Science, University of California at Santa Barbara, California 93106 Depar...

Oilfield Review Winter 2014/2015: 26, no. 4. Copyright © 2015 Schlumberger. FMI is a mark of Schlumberger. Sediments undergo several modifications to become the source rocks, reservoirs and seals that generate and contain petroleum reserves. The changes that occur between deposition and lithification, collectively known as diagenesis, include the processes of compaction, cementation, dissolutio...

Oilfield Review Summer 2011: 23, no. 2. Copyright © 2011 Schlumberger. For help in preparation of this article, thanks to Nicholas Drenzek, Cambridge, Massachusetts, USA. FLAIR is a mark of Schlumberger. Rock-Eval is a mark of the Institut Français du Pétrole. Rock-Eval 6 is a mark of Vinci Technologies SA. Every oil or gas play originates from source rock. The viability of each play—convention...

Accurate knowledge of soil fertility is required to promote global food security for life sustenance. Literatures have shown that electrical resistivity method effective agricultural site selection without passing through the rigor test. However, factor responsible inconsistence in signature with from one place another, effect texture and depth variation on crop yield are questions this work ge...

Abstract Naturally occurring bitumen seeps migrating within the shallow subsurface contaminates soil and groundwater in communities eastern segment of Dahomey Basin southwestern Nigeria. Managing these contaminations require an understanding distribution to isolate contaminated regions avoid farming activities or drilling drinking water wells them. Several studies have assessed occurrence regio...