NMR Logging and Petrophysics Courses

All Petrophysics Courses are available for “in-house” presentation.  58 short courses on NMR, bypassed pay, unconventional resources, and basic formation evaluation to 1050 participants since 1997

Upcoming NMR Course and Computing Labs, Barcelona and Galveston February 2017, also August 2017 - Black Hills, South Dakota
Deadline for registration for February 2017 courses is December 30, 6 seats remaining
To register call 281-468-7755 or email
nmr petrophysics

Course Overview: This is a comprehensive summary of NMR Logging including basic physics, signal processing, practical considerations and tool selection, job design, data processing, interpretation, quality control and log/core integration. Emphasis is on practical application and building of interpretation skills with dozens of real-world examples. Computing lab to include processing of CMR Plus with conventional logs, MRIL (with core, conventional logs, and differential spectrum), and MRX (with T2D and conventional logs) data sets using Logic software (and others as available.)  Attendees are encouraged to bring their own data sets to process during the course.  We will begin with theory on the first day, go into data loading, phase correction, echo processing, move into different filtering options and inversion.  As the course progresses we will look at the mechanisms of T2 and T1, look at other effects on such as restricted diffusion, mineral and temperature effects.  We will progress through dozens of case studies, quality control, review all of the commercial wireline and LWD tools.  We will examine fluid identification in detail and learn about the processing of T1 T2 D maps.  Later chapters cover log-core integration and all recent publications and advances in NMR through 2015.  This course will provide an understanding of:

  • NMR physics
  • T1, T2 and diffusion, T2 interpretation, pore size and fluid effects
  • Signal processing, inversion, averaging, signal to noise, first echo issues
  • NMR porosity, calibration, corrections for polarization and hydrogen index
  • How to decipher how your NMR log was actually acquired - which corrections were used
  • Differing log results from different tools in similar wellbores
  • Clay bound vs capillary bound - the reality - and sensitivity to cutoffs
  • Defining Swirr, relating to capillary pressure and how to approach this issue with NMR logs
  • Various inversion algorithms, effects of filtering and regularization changes
  • The evolution of total porosity logging - new acquisition methods for unconventionals
  • Bound fluid models including T2 cutoff, spectral or tapered, HBVI, variable cutoff, cap pressure based models, lithology driven models
  • Permeability models (Timur-Coates, SDR, bin weighting)
  • NMR log integration with resistivity based analysis
  • NMR in carbonates - case studies
  • Permeability calibration and new approaches to NMR permeability
  • NMR processing workflows in commercial software, Logic, IP, and others
  • T1 logging theory and application
  • Complications of NMR, internal gradients, restricted diffusion, iron minerals, wettability alteration and temperature effects, diffusive coupling
  • Commercially used NMR fluid identification methods
  • Dozens of case studies, shaley sand, how to handle laminated sands, mixed lithology, carbonates and vuggy porosity, salt and evaporate plugging
  • Effects of gas, low, moderate and high viscosity oil
  • Integrating NMR and dielectric logs
  • How to deal with low porosity
  • Wellsite safety
  • History of NMR logging
  • Implications of tool designs, eccentered tools, focused and gradient fields
  • The trade-off between repeatability, bed resolution, signal to noise and logging speed and how to optimize acquisition for a given application
  • How to recover or reprocess data that did not have optimal acquisition
  • Radial profiling
  • Job design for deviated and horizontal wells
  • Which digital curves to obtain
  • NMR mnemonics from various companies
  • Fluid identification from simple T2 analysis, differential spectrum and time domain analysis, shifted spectrum, enhanced diffusion, MRF, T1, T2, D maps, diffusion editing, 4D NMR - where all these techniques work and pitfalls of each - several case studies
  • Practical considerations of NMR logging including environmental effects
  • Commercial tools and appropriate uses of each including CMR, CMR-200, CMR+, MRX, MRIL B and C, MRIL Prime, MRIL-XL, MREX, Sperry, Baker, Anadrill LWD tools, and MRILab, Javelin
  • Quality control of NMR logs. frequency tuning, calibration, service company specs, examining repeatability - critical review of NMR vs other data - several case studies
  • Quality control checklist
  • Tool operating modes
  • Tool planners from Schlumberger and Logic - how to do forward modeling of your NMR log
  • NMR shale applications, determination of grain density, TOC, improving SNR at low T2, integration with geochemical logs, applications in Eagleford, and many others
  • Correcting for restricted diffusion effects
  • ROS from NMR, log-inject-log
  • Litho-facies from NMR using clustering
  • Log – core integration, new high frequency lab machines
  • Job planning and design, parameter selection
  • NMR data processing capabilities of commercial software packages
Computing lab will include:
  • Loading, phase correction, filtering, averaging, inversion of echo data
  • Effect of various bound fluid and permeability models
  • Resistivity based analysis methods
  • Use of NMR fluid identification methods
  • Quality control procedures
Comments from previous students:
“The course de-mystified the NMR concepts and applications which I previously found challenging” - Petrophysicist, 2013 Course

“I very much enjoyed the course” - 30 year Petrophysicist, 2013 course

“Really enjoyed the course” - 35 year Petrophysicist, 2013 course

“Excellent class” - Petrophysicist, 2013 course

“The course has been excellent” - Petrophysicist, 2013 course

“Again thank you for the great course you gave us this week!” - Petrophysicist

“ The course was excellent! - Petrophysicist

“I have attended this seminar and found it to be a thorough examination of NMR by a very knowledgeable analyst. Excellent”. – Petrophysicist with 30 years experience

“Your balanced approach was most refreshing. The manual will be quite useful as an ongoing reference guide.” - Petrophysicist

“This was a very good course that I would highly recommend to others. The manual was excellent and it will be a valued reference book.” - Engineer

“I feel better able to judge now in which situations an NMR log would be justified.” - Geologist

Partial Client List:
These schools have been attended by Repsol, EBN, Oranje-Nassau, BG Group, Petrobras, Ecopetrol, Wintershall, TNO, Continental Resources, Concho, Saudi Aramco, Senergy, Halliburton, Schlumberger, Baker Atlas, Qatar Petroleum, Petronas, Weatherford, BP-Amoco, OMV, Encana, Exxon-Mobil, Chevron-Texaco, Pemex, Maersk, Paradigm, INA, Sonangol, Lasmo, Core Labs, PTS Labs, Burlington, Oxy, E-ON, Dong Energy, Senergy, Anadarko, UP Resources, ElPaso Energy, Devon, Kerr-McGee, Marathon, Enterprise, ENI/AGIP, ERC Equipoise, GDF Suez, Inpex, VNG, Statoil, Swift Energy, Cobb and Associates, Ryder-Scott, Mobil, Husky, Mitchell Energy, Talisman, RWE, Inpex, Newfield, Aera, and others. An abbreviated version has been given as an SPE Technology Transfer Course and also for CWLS Geoconvention

About the instructor:
With 34 years of oil and gas industry experience, Brian Stambaugh is currently President of NMR Petrophysics. After nine years with Schlumberger, he joined Numar Corporation in 1990. While at Numar, Brian assisted with development of new computational techniques for NMR, and assisted with marketing and engineering efforts as borehole NMR technology emerged. He served as a consultant to Computalog, Atlas Wireline, and Halliburton, and provided interpretation and technical support during overseas assignments. Brian has performed or supervised the processing of NMR data sets from thousands of wells, has delivered 57 short courses on NMR and bypassed/unconventional resources to 1050 participants, and has published articles and technical papers on the subject of NMR logging. He has served as an SPWLA Distinguished Lecturer and SPE Technology Update Speaker. Brian holds a B.S.M.E. from South Dakota School of Mines and Technology.

Tuition: $5875 plus applicable tax for Barcelona and Galveston, $4975 for Black Hills - includes 460 page color manual and software license for course.  The deadline for registration is December 30 for February 2017 courses.  50% of course fee due at that time and is non-refundable.
To register call 281-468-7755 or email
nmr petrophysics




Basic Petrophysics/Formation Evaluation With Introduction to Log Core Integration and Unconventional Resources

Available for In-House Presentation  

Two Day to Five Day Course

Course Overview: This course begins with the fundamentals of formation evaluation, examining the various logging tools and methods, basic log calculations, porosity, lithology, and saturation models, mud logging, log-core integration and introduction to unconventional resources.  The course also introduces advanced logs such as tensor resistivity, magnetic resonance, geochemical, image logs, dipole sonice, wireline coring, cased hole logging and perforating.  Basic log analysis calculation spreadsheets will be distributed and used extensively in the course.  Includes 200 page (2 day course), 500 page (5 day course) color course manual.  Class size limited to 20 in order to provide more individualized instruction.

Recommended For: For general audiences - ideal for those wanting to understand basics of logging methods and tools, basic calculations, mud logging, basics of log-core integration, and unconventional resources. 




Case Studies of Recognizing Bypassed Pay and Unconventional Resources From Logs, Quality Control of Processed Logs

One Day Course

Course Overview: This one-day course presents more than a dozen case studies of bypassed or unconventional pay in shale, clastics, and carbonates. The examples will be reviewed by class attendees in teams and discussed with the class in a workshop format designed to encourage discussion and learning. With no equations beyond the Archie formula, and minimal theory, the goals of the course are:

  • To improve skills in recognizing unusual log signatures that can indicate an unconventional or bypassed resource.
  • To improve basic logging tool theory
  • To improve skills in quality control of standard logs and processed logs
  • To recognize situations where additional help may be needed, and where additional logs, core or other information might be needed for proper formation evaluation

Recommended For: For general audiences from new grads to gray hairs, for all Geoscientists– anyone with a basic understanding of logs. A diverse mix of experience levels and disciplines provides better discussion.

Case Studies (partial list):
Niobrara shaley carbonate, natural fractures
Barnett shale case study
Bakken shale case study
Tuscaloosa marine shale
Marcellus shale case study
Mowry shale case study
Hugoton Council Grove mixed lithology low contrast pay with processed log issue Greenhorn/Niobrara organic shale
Hugoton Council Grove mixed lithology low contrast pay with processed log issue GOM Mahogany subsalt laminated low contrast pay sands
GOM Eugene Island 330 low contrast pay
Canadian fractured CMR log Keg River carbonate Canadian fracture CMR log carbonate
Salt plugged porosity
Brown dolomite, incorrect processing
Haynesville shale
Travis Peak low contrast shaley pay shaley sand, incorrect and corrected processed log
Wattenberg J sand organic shale bypassed pay, NMR log and synthetic NMR

Please contact us for course cost and availability.

To register call 281-468-7755 or email
nmr petrophysics

An Update on Modern NMR Logging, Applications and Limitations, New Applications in Shale

One Day Course

Course Overview: This one-day course provides an overview of current NMR logging technology, including new applications in unconventional reservoirs. The course includes several case studies and log examples, which are scrutinized by attendees with respect to optimized data acquisition, quality control, and data processing methods. The course includes examination of T1 and T2 logging, pore size, fluid effects, porosity, bound fluid and permeability models, fluid identification from NMR, review of currently available logging tools, applications in unconventional reservoirs and limitations of NMR.

Recommended for all Geoscientists desiring an overview of NMR logging and an update on recent advancements.

Course Outline:

  • Introduction, why NMR?
  • NMR physics
  • T1, T2, and diffusion, pore size, fluid effects
  • Signal processing, inversion, averaging, signal to noise
  • T1 logging
  • Internal gradients, mineralogy effects
  • Resistivity based NMR computed logs, NMR for reservoir characterization,
  • Applications in unconventional reservoirs
  • Using NMR for fluid identification
  • Quality control of NMR logs

Please contact us for course cost and availability.

To register call 281-468-7755 or email
nmr petrophysics