Openhole Logging - Wireline Formation Evaluation | Schlumberger-巴黎人会员登录

Wireline Openhole Logging

Advance your understanding to optimize reservoir performance

Your reservoir, in full geologic detail

The ground truth for high-resolution information to address reservoir complexity and to guide and constrain modeling is conventional whole core. But, it’s obviously not practical to core and analyze the entire drilled well. Nor is the resolution and confidence of what can be interpreted from seismic data alone sufficient.

The industry’s recognized approach for efficiently acquiring representative information is wireline openhole logging, deploying sensors to measure all aspects of the reservoir in situ and in real time.

Get the answers you need for informed decision making and risk reduction from precise and accurate downhole logging measurements, delivered workflow-ready for interpretation and refining your reservoir model.

saturn 3D radial probe
Wireline Conveyance
Integrated wireline and slickline systems for reliable, efficient conveyance.
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Formation evaluation characterizes rock and fluid properties based on downhole measurements, formation testing, and laboratory analysis services. Petrophysical analysis using a wide variety of measurements leads to an understanding of the reservoir and its detailed characteristics.


High-definition NMR service

Unlock the T₁ dimension to provide the most accurate lithology-independent porosity and fluids mapping for the smallest pores.

Dielectric Scanner

Multifrequency dielectric dispersion service

Acquire measurements that speak volumes.

Integrated Wireline Logging Platforms

Single toolstrings for standard, slim, and HPHT wells

Get the complete picture of your reservoir and its fluid contents from accurately determined petrophysical properties measured by a single toolstring.

Litho Scanner

High-definition spectroscopy service

Unlock the key elements of your reservoir—including stand-alone TOC.

MR Scanner

Expert magnetic resonance service

Obtain NMR measurement of porosity, permeability, and fluid volumes independent of the rock matrix.

Rt Scanner

Triaxial induction service

Calculate vertical and horizontal resistivity from direct triaxial induction measurements and solve for formation dip to account for anisotropy and thin beds.


Multifunction spectroscopy service

Attain comprehensive formation evaluation in cased hole: one run, one tool.


Through-the-bit logging services

Log a full wireline measurement suite beyond gravitational descent.


Measurements at scales from pores to sedimentary basins are analyzed and interpreted to develop micro- and macrogeological models. Knowledge of local and field-wide structure and variability helps to achieve optimal reservoir contact and guide well paths to avoid hazards.


Fullbore formation microimager

Image formation microresistivity in water-based mud, including deviated and horizontal wellbores.


High-definition formation microimager

Visualize water-based mud environments in high fidelity and clarity.


Oil-based microimager

Visualize the reservoir with microresistivity imaging in oil-based, nonconductive, and invert-emulsion mud systems.

Quanta Geo

Photorealistic reservoir geology service

Truly visually represent formation geology with core-like images in oil-based mud.


Ultrasonic borehole imager

Analyze fractures, stress, and borehole stability with advanced borehole imaging independent of mud type.


Through-the-bit logging services

Log a full wireline measurement suite beyond gravitational descent.


Rocks have a wide range of stiffness and strength and are exposed to variable stresses during drilling, completion, and production. Downhole acoustic measurements and laboratory core analysis provide input for geomechanical modeling to efficiently develop, produce, and ultimately abandon reservoirs.

Sonic Scanner

Acoustic scanning platform

Gain acoustic insight to anisotropy and formation geomechanics in wells at any angle.


Dipole shear sonic imager

Fully characterize compressional, shear, and Stoneley waves.


Through-the-bit logging services

Log a full wireline measurement suite beyond gravitational descent.

Reservoir Engineering

Reservoir engineering provides an understanding of fluid flow and phase behavior at all scales, for all fluids, and in all geological settings. Formation pressure measurement, downhole fluid sampling and analysis, and laboratory PVT analysis are used to build a picture of reservoir potential and predict future performance.


3D radial probe

Perform formation testing where previously not possible.

InSitu Fluid Analyzer

Real-time downhole fluid analysis system

Describe the entire reservoir fluid system in real time by scanning fluid properties downhole in different reservoir zones.

Wireline Formation Testing

Formation pressure, downhole fluid analysis, fluid sampling, and sidewall coring

Determine how fluid behaves in the reservoir by collecting data at reservoir conditions.

Sidewall Coring

The efficient way to sample your reservoir

Understand the reservoir rock and its fluid contents.

Quicksilver Probe

Focused fluid extraction

Collect virtually contamination-free fluid in a fraction of the time.


Large-scale sensing finds reservoirs in all types of environments, providing the basis for a 3D reservoir model with physical properties at all scales. Geophysics provides the “big picture,” while wellbore-scale seismic and petrophysical data deliver formation understanding in detail.


Integrated borehole seismic system

Image around the borehole in high resolution with integrated borehole seismic services.


Crosswell seismic imaging service

Achieve seismic imaging at the reservoir scale.

Celebrating 55 Years in Norway
On July 16, 1966, the first two Norwegian employees of Schlumberger in Norway rigged up the new cable bridle on the logging unit on the Ocean Traveler rig to log the first well ever drilled in the Norwegian Continental Shelf, Well 8/3-1. Our journey of growth continues as we transition to meet the energy demands of the future.
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