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GeoServices mud logging and well intervention

Mud logging, surface gas analysis, digital slickline, safety valve, and multiphase metering capabilities associated with GeoServices continue within the SLB portfolio.

Geoservices Technology Overview
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Overview

GeoServices was a global provider of mud logging, surface gas analysis, and well intervention services. In 2010, SLB completed its acquisition of GeoServices for USD 1.1 billion. Today, related capabilities are available across SLB surface logging, well intervention, completions, and surface multiphase flowmetering portfolios.

About GeoServices

GeoServices was founded in France in 1958 by Gaston Redilly with Edouard Cochet, Olivier Issenman, and Francis Meil with the goal of becoming a global oilfield service company focused on geology. The company expanded across Europe, Africa, South America, and Southeast Asia and, by 2010, operated in 64 countries with more than 2,000 employees.

GeoServices became known for mud logging, surface gas analysis, and well intervention. Its technologies included the ALS5000 mud logging system, Constant Volume Degasser, Reserval quantitative gas measurement service, Flair fluid logging service, and GEM Line intelligent slickline. GeoServices also developed electromagnetic telemetry for measurements while drilling, downhole safety valves, multiphase flowmeters, and downhole gauges.

In 2010, SLB completed its USD 1.1 billion acquisition of GeoServices. Today, related capabilities continue across the SLB portfolio. Surface logging solutions support well monitoring, mud logging, formation evaluation, and real-time fluid characterization while drilling. Digital slickline intervention enables two-way downhole communication, measurement, and control using standard slickline conveyance. SLB completions and surface testing technologies also support subsurface safety and multiphase flow measurement.

Geoservices Hero
SLB technical experts analyze rock samples using advanced imaging technology to support formation evaluation and deliver insights into subsurface conditions.
Geoservices Technology Overview 1
SLB technical expert reviews formation evaluation data using advanced digital analysis tools to support subsurface characterization and informed drilling decisions.
Employees work at the GeoServices drawing office in Paris 1963. Founded in 1958, GeoServices first begins to expand into the field of geological studies, and in particular photogeology that involves taking aerial photos with extreme precision.
A GeoServices (now SLB) engineer unpacks an EM MWD system (electromagnetic measurement while drilling) in France, c. 1990.
Two GeoServices (now SLB) employees carry out a maintenance operation on a production well at Las Heras in Mendoza province, Argentina, in 2002.
From GeoServices to SLB: key milestones

1958

Gaston Redilly and colleagues found GeoServices in France with the goal of building a global oilfield services company focused on geology.

1980s

GeoServices expands into Italy, the United Kingdom, Norway, Brazil, Angola, Nigeria, and Southeast Asia during the growth of French oil and gas exploration.

1990s

Market volatility leads GeoServices to focus its portfolio on mud logging and well intervention, divesting its directional drilling and well testing business lines.

2010

Schlumberger (now SLB) completes its acquisition of GeoServices for USD 1.1 billion. At the time, GeoServices operates in 64 countries with more than 2,000 employees.

Today

GeoServices mud logging and surface gas analysis capabilities continue through the SLB surface logging portfolio. Related intervention, safety valve, and multiphase metering capabilities continue through SLB well intervention, completions, and surface testing portfolios.

1958 1980s 1990s 2010 Today

Where GeoServices technology lives today

Use this mapping to locate the current SLB portfolio for capabilities previously associated with GeoServices.

Formerly offered by GeoServices Available today through SLB
ALS5000 mud logging system and surface well monitoring Core mud logging and SurfaceSafe™ digital drilling monitoring solutions
Constant volume degasser, reservoir gas measurement, and isotope analysis PureFlex™ surface fluids logging-while-drilling service, FlairFlex™ advanced real-time fluid logging and analysis service, and isotope logging
Flair real-time fluid and gas logging FlairFlex advanced real-time fluid logging and analysis service
Electromagnetic measurements-while-drilling (MWD) tools SLB MWD services
Downhole safety valves GeoGuard™ DW deepwater high-performance subsurface safety valves and the SLB subsurface safety valve portfolio
GEM Line intelligent slickline Digital slickline intervention services, including LIVE™ digital slickline services
Multiphase flowmeter Vx Spectra™ surface multiphase flowmeter
Integrated surface logging and digital well monitoring SLB surface logging portfolio for digital monitoring, well construction performance, fluid analysis, and automated lithology
Find GeoServices capabilities at SLB

Explore the current SLB portfolios that exhibit forward GeoServices capabilities in surface logging, fluid analysis, digital slickline intervention, and subsurface safety.
Surface Logging Services

Surface Logging

Actionable information at surface
Get decision-ready information on well status, drilling performance, lithology, and more.
Fluid samples in the lab as part of fluid analysis.

Fluid Analysis

Reservoir-representative data and insights
Optimize production decisions with actionable fluid-property measurements and expert-led data interpretation.
3D render of digital slickline.

Digital Slickline Intervention

Perform a wider range of intervention activities with precision, control and certainty
Log, perforate, set, seal, and perform mechanical operations with digital surface control and depth correlation.
Cutaway view of Integrity HPHT subsurface safety valve showing its internals.

Subsurface Safety Valves

Dependable technology for maximized well integrity
Seal your well with reliable wireline- and tubing-retrievable safety valves that suit your well and reservoir conditions.
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Related SLB business lines and solutions

Explore the SLB portfolios that carry these capabilities, from surface logging and digital slickline intervention to subsurface safety valves and surface multiphase flowmetering.

Surface Logging

Get decision-ready information on well status, drilling performance, lithology, and more.

Digital Slickline Intervention

Log, perforate, set, seal, and perform mechanical operations with digital surface control and depth correlation.

Subsurface Safety Valves

Seal your well with reliable wireline- and tubing-retrievable safety valves that suit your well and reservoir conditions.

Multiphase Flowmetering

Real-time, accurate oil, gas, and water rates with no separation needed.

Frequently asked questions about GeoServices

Which SLB services carry GeoServices mud logging and surface gas analysis?

The SLB surface logging portfolio carries these capabilities through core mud logging, SurfaceSafe™ digital drilling monitoring solutions, PureFlex™ surface fluids logging-while-drilling service, FlairFlex™ advanced real-time fluid logging and analysis service, isotope logging, and automated lithology analysis.

How do PureFlex and FlairFlex services support fluid analysis while drilling?

PureFlex service analyzes C1 to C5 hydrocarbons at surface while removing common drilling fluid contaminants and effects caused by drillbit metamorphism. FlairFlex service adds real-time formation evaluation and reservoir fluid characterization using surface gas extraction and gas chromatography–mass spectrometry.

What SLB capability succeeds the GeoServices GEM Line intelligent slickline?

SLB digital slickline intervention uses a coated slickline cable for two-way communication with downhole tools. The service supports real-time depth correlation, measurement, and control while retaining standard slickline conveyance and pressure control equipment.

Where are GeoServices safety valve and multiphase metering capabilities available today?

Subsurface safety valve capabilities are available through the SLB completion portfolio, including GeoGuard™ DW deepwater high-performance subsurface safety valves. Multiphase metering is available through the Vx Spectra™ surface multiphase flowmeter for continuous oil, gas, and water flow rate measurement without separation.

Can operators still buy technology under the GeoServices name?

No. GeoServices capabilities are now offered through current SLB product and service portfolios rather than under the former company brand. Availability depends on the required application and region; contact the relevant SLB surface logging, well intervention, completions, or surface testing team.

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Mud logging and well intervention solutions

Explore the SLB surface logging, digital slickline intervention, subsurface safety valve, and surface multiphase flowmetering portfolios that exhibit capabilities associated with the former GeoServices business.

Explore surface logging services