Schlumberger is the leading oilfield services provider, trusted to deliver superior results and improved E&P performance for oil and gas companies around the world. Through our well site operations and in our research and engineering facilities, we are working to develop products, services and solutions that optimize customer performance in a safe and environmentally sound manner.
1912 Conrad Schlumberger conceived the revolutionary idea of using electrical measurements to map subsurface rock bodies
1919 Marcel Schlumberger began working with his brother Conrad
1920 Opened first office at 30, rue Fabert in Paris
1923 Began conducting geophysical surveys in Romania, Serbia, Canada, Union of South Africa, Belgian Congo, and USA
Mapped the first oil-productive salt dome by electric prospecting in Romania
1926 Formed Société de Prospection Electrique, the precursor of Schlumberger
1927 Recorded the first electrical resistivity well log in Pechelbronn, France
1929 Expanded subsurface surveying into Venezuela, India, and the Soviet Union
Logged first well in the USA (Kern County, California)
1930 Introduced continuous-recording hand recorder, enabling plotting of continuous log of information
1931 Introduced Spontaneous Potential (SP) log
1934 Founded Schlumberger Well Surveying Corporation (now Schlumberger Well Services)
1935 Developed the single-galvanometer automatic recorder for logging in the field
1936 Introduced the Sample Taker tool
1940 Moved company headquarters to Houston
1941 Introduced the SP Dipmeter tool for finding the angle of formation dip in the borehole
1947 Recorded first induction log to help distinguish oil- from water-bearing rock layers when the borehole contains fluid that does not conduct electricity
Introduced the Resistivity Dipmeter tool
Began producing nine-galvanometer R9 recorder for simultaneously displaying multiple logging curves
Deployed first offshore rig
1948 Inaugurated Schlumberger-Doll Research in Ridgefield, Connecticut, USA
1949 Introduced Microlog tool for measuring mudcake thickness and resistivity near the borehole
1950 Introduced Laterolog system for focusing currents into thin rock layers beyond the borehole
1951 Introduced Microlaterolog tool for measuring resistivity near the borehole
Began experiments with microneutron device to measure formation porosity by sensing the amount of hydrogen present
Undertook research on density logging
Started work on attenuation of gamma rays, leading to a technique for quantifying formation porosity
1952 Gathered first computer-ready data in the field
Introduced Continuous Resistivity Dipmeter tool
Bought 50% of Forex drilling rig company
1954 Introduced Microlog-caliper for recording borehole diameter
1955 Began work on "slowing down time" technique to measure formation hydrogen concentration by detecting energy reduction of source neutrons
1956 Formed Schlumberger Limited in Curaçao as holding company for all Schlumberger businesses
Acquired Johnston Testers (USA testing and production company)
Completed first induction-electrical log
Patented method for determining hydraulic characteristics of formation traversed by a borehole
1957 Completed first density log, enabling realization of bulk density measurement using gamma ray attenuation
1960 Formed Dowell Schlumberger (50% Schlumberger, 50% Dow Chemical), specializing in pumping services for the oil industry
Began work on the Sidewall Neutron Porosity tool with high-pressure helium-3 detectors using epithermal neutrons to measure formation porosity
Created prototype of TDT Thermal Decay Time tool for measuring formation saturation through casing using neutron population decay
1961 Acquired Solatron (UK) electrical instrumentation company
Completed first digitized dipmeter logs by computer—the first successful computer processing of logs from tape
Founded Société d'Instrumentation Schlumberger to coordinate expansion into electronics and measurement systems
1962 Acquired Vector Cable cable operations and Daystrom measurement instruments
Introduced Formation Density tool
Listed Schlumberger Limited on the New York Stock Exchange
Commercialized the compensated density log, followed by the pad-type neutron log acquired by the Sidewall Neutron Porosity tool
1964 Created Neptune drilling company (50% Forex, 50% Languedocienne)
1965 Processed digitized log tape in a truck
Founded engineering center in Clamart, France
Began development of CNL Compensated Neutron Log tool, a two-detector neutron tool for through-casing porosity measurement
1966 Developed small minitron and constructed 1 11/16-in TDT tool for through-tubing production logging
Achieved first Schlumberger-Doll Research patent in sonic logging
1968 Introduced TTR tape recorder to replace R9U galvanometer recorder
1969 Incorporated experimental lithology into Litho-Density tool for direct measurement of formation lithology
1970 Introduced SARABAND service, the first computerized reservoir analysis
1971 Acquired Flopetrol (testing production of oil wells) and remaining 50% of Forex; created Forex Neptune Drilling Company
Introduced first logging system that combined gamma ray, SP, induction, Spherically Focused Resistivity, sonic, and caliper logs
1972 Introduced DLL Dual Laterolog tool for simultaneous measurement of shallow region invaded by borehole fluids and the deep undamaged formation
1977 Introduced CSU Cyber Service Unit for wellsite instrumentation
Acquired The Analysts (directional drilling and mud logging services)
Commercialized the EPT Electromagnetic Propagation Tool, which uses travel time and attenuation of microwave-frequency electromagnetic waves to determine the amount of water in rock pores
Developed the CNTG four-detector neutron porosity tool
1978 Developed the SDT tool, the first-generation digital sonic tool for uphole processing of compressional and shear sound speeds in formations
1979 Made first observation of propagating slow wave with applications such as eliminating unwanted signals
1980 Completed first measurement-while-drilling (MWD) job in the Gulf of Mexico
Began researching extremely high values (higher than 106) of low-frequency dielectric constants in rocks
1981 Acquired Applicon and Balteau
Implemented first international data links with e-mail
1982 Developed Crystal graphical log interpretation workstation, which ultimately became the basis for GeoFrame software
1983 Implemented first commercial user of ARPANet (Palo Alto lab) for multiple international links and the first internal secure gateway between divisions
Opened Cambridge Research Center in England
1984 Acquired SEDCO drilling rig company and 50% of Dowell of North America
Founded Anadrill by combining the drilling segment of Dowell and The Analysts
Developed ultrasonic CET Cement Evaluation Tool for adding azimuthal information to cement bond analysis
Began nuclear magnetic resonance (NMR) petrophysics research
1985 Formed Sedco Forex Drilling Company
Introduced Formation MicroScanner tool
Acquired Merlin and 50% of GECO
Deployed Schlumberger Information Network (SINet), the world's second largest internal corporate network and the first commercial ARPANet-based intranet
Introduced first VSAT terminal
Field tested borehole linear accelerator (LINAC) as a density tool
1986 Merged Flopetrol with Wireline group to create Schlumberger Wireline & Testing
Introduced Phasor induction tool to improve detection of thin beds
Prototyped CMR Combinable Magnetic Resonance tool
1987 Acquired Neptune (North America), Bosco and Cori (Italy), and Allmess (Germany)
Registered slb.com as an Internet domain name
1988 Acquired remaining 50% of GECO
Introduced first logging-while-drilling (LWD) tool
1989 Introduced MAXIS 500 logging unit
1991 Acquired PRAKLA-SEISMOS
Used geosteering for the first time to plan the drilling path in horizontal wells
Introduced the MDT Modular Formation Dynamics Tester and the FMI Formation MicroImager tool
1992 Acquired GeoQuest Systems, Inc.
Converted SINet to TCP/IP and www capability
1993 Created GeoQuest product line by merging Schlumberger Data Services, Finder Graphics, and GeoQuest Systems, Inc.
Launched IDEAL concept (Integrated Drilling Evaluation and Logging System) and ran first compressional sonic logs while drilling
1994 Introduced Oil Partnering Network in the North Sea sector
1995 Introduced Platform Express technology, SIMPLER advanced land rig concept, ARC5 LWD tools, and MAXIS Express logging unit
Acquired Intera Technologies Corp. petroleum division, AEG meter, and ECLIPSE reservoir study team and reservoir technologies
Launched Integrated Project Management (IPM) as an independent service and engineering group
Created Omnes joint venture between Schlumberger and Cable & Wireless plc.
Commercialized CMR Combinable Magnetic Resonance tool
1996 Conceived real-time reservoir management for improving hydrocarbons recovery and providing high-end IT solutions to industry
Acquired Oilphase
Completed first commercial sonic imaging job
1997 Introduced ClearFRAC nonpolymer, damage-free fracturing fluid
1998 Acquired Camco International, Inc.
Introduced PS PLATFORM fifth-generation production logging tool and HRLA High Resolution Laterolog Array
1999 Entered joint venture with Smith International, creating the world's largest drilling fluids company, M-I L.L.C (60% Smith International, 40% Schlumberger)
Deployed Houston remote connectivity teleport
2000 Combined Geco-Prakla with Western Geophysical to create WesternGeco (70% Schlumberger, 30% Baker Hughes)
Launched IndigoPool.com
Began conducting Q-Marine surveys
2001 Acquired Sema plc. (IT consultancy), Phoenix, and Sensa (fiber optic distributed monitoring)
Deployed Macae remote connectivity teleport
Formed Schlumberger Information Solutions (SIS) to support real-time reservoir management and E&P business optimization processes
2002 Deployed Singapore remote connectivity teleport
Introduced proVISION real-time reservoir steering tool for LWD; OrientXact perforating system; SlimXtreme slimhole high-pressure, high-temperature wireline logging platform; and FlexSTONE flexible cementing system
Acquired A. Comeau and Associates Limited to enhance capabilities in artificially lifted wells
2003 Began conducting Q-Land surveys
Launched PowerDrive Xceed fully rotational steerable system; MaxTRAC production services tractor; seismicVISION LWD system; LiteCRETE lightweight, high-performance cementing system; PVT Express pressure-volume-temperature mobile laboratory; and DecisionXpress petrophysical evaluation system
Deployed Aberdeen satellite manufacturing facility and second teleport
Acquired VoxelVision (high-end PC-based visualization and seismic technology)
Acquired stake in PetroAlliance Services Company Limited, a premier Russian oilfield services company
2004 Completed divestiture of SchlumbergerSema to Atos Origin
Launched the PowerDrive X5 rotary steerable system with integrated measurements, sonicVISION sonic-while-drilling tool, and PowerDrive vorteX rotary steerable system
Acquired Decision Team (oil and gas software and consulting services firm) and AOA Geomarine Operations (AGO), a pioneer in CSEM (controlled-source electromagnetic) and MMT (marine magnetotelluric) technologies
Opened Russia Technology Hub within campus of Gubkin Russian State University of Oil and Gas; opened second phase of expansion of the Schlumberger Reservoir Completions Center
Established industry's first long-term reservoir monitoring program, between Statoil and WesternGeco
Awarded world's largest-ever 4D seismic project, shooting over the Marlin field offshore Brazil for Petrobras
2005 Launched Scope family of while-drilling technology services: StethoScope formation pressure, TeleScope high-speed telemetry, PeriScope deep directional resistivity, and EcoScope multifunction formation evaluation; each represents a step-change in LWD and MWD technology
Introduced FiberFRAC technology to improve production rates in tight-gas reservoirs through better proppant distribution and fracture geometry
Commissioned the 27th Operation Support Center (worldwide facilities that enable real-time monitoring, modeling, and remote control of operations)
Commercialized Scanner downhole rock and fluid characterization services: Rt Scanner multiarray triaxial induction, Sonic Scanner acoustic, and MR Scanner new-generation NMR tools
2006 Acquired the 30% minority interest in WesternGeco held by Baker Hughes
Introduced the Quicksilver Probe wireline sampling technology, a method to deliver formation fluid samples quickly with little to no contamination
Acquired Ødegaard A/S (Danish firm specializing in advanced surface seismic data inversion software); integrated acquisition into WesternGeco
Relocated Schlumberger Limited US corporate headquarters from New York to Houston
Acquired Reslink (Norwegian-based supplier of advanced completion solutions)
2007 Completed acquisitions of Geosystem (land and marine electromagnetics and seimic imaging) and Tyumenpromgeofizika (geophysical and wireline logging); integrated Geosystem into WesternGeco Electromagnetics
Launched Contact family of multistage fracturing and completion services, which have integrated stimulation technologies
Schlumberger
I have a severe case of Mbt shoes plantar faciitis that has resisted all forms of treatment including Mbt Sale surgery, physical therapy, night splints, etc.I got a referral to a new podiatrist who recommended trying MBT Sport Shoes. I had to try a few pairs to get a good fit but now love them. They never leave my MBT Chapa Shoes feet. They are so comfortable and take all MBT Lami Shoes the strain out of my heels plus as a benefit I have no joint pain either! I have two pair, one MBT M.Walk Shoes for work and one for outside. The best shoes I ever had and I even tried a funny Discount MBT shoes coiled shoe which while ok were just too ugly Cheap Mbt Shoes to wear. Footwear.etc was fantastic to work with, very easy to order, make returns. Thank You!I absolutely love MBT shoes. I have purchased a MBT Shoes on sale different style 2 years ago and I loved it- it ended my search for a mbt masai shoes cure for my plantar fasciitis which I've had for mbt shoes review about 5 ...