Don’t miss seeing Mount Sopris and catching a WellCAD class at the upcoming 31st Annual Symposium on the Application of Environmental and Engineering Geophysics (SAGEEP) March 25-29, 2018 in Nashville!
We will be in Booth 25 surrounded by many of our friend and colleague geophysical equipment companies. We will be demonstrating a 2G Optical Televiewer with our world’s-smallest 19mm Nano Gamma ray tool. Please also ask us about our current prototypes and testing plans for the Spectral Induced Polarization and Neutron Generator sondes.
Nashville, Tennessee is a region of North America with numerous attributes of interest to near surface geophysicists. Karst features, including Mammoth Cave, are abundant within a short distance of Nashville; a few hundred miles west lies the New Madrid fault zone, site of two of the largest earthquakes in the continental US (1811-1812), and east Tennessee has issues related to coal mining as well as chemical and nuclear wastes. The Tennessee river flows east to west across most of the state with numerous dams and levees. These features, along with topics of national and international interest (infrastructure, renewable and unconventional energy, water, geohazards, unexploded ordnance, etc.) will form the core of a timely and relevant technical program.
Book your rooms in the newly renovated Marriot today: http://www.eegs.org/sageep-2018-hotel-venue
If you’re interested in learning more about the Mammoth Caves, visiting the Corvette Museum that was lost in a sinkhole, or learning about how geophysics applies to local dams and levees, look into signing up for the SAGEEP Field Trips: http://www.eegs.org/field-trips
Also, don’t miss out on signing up for a one-day WellCAD software and New Borehole Logging instrumentation course. It will be tailored to those taking the course, so please attend regardless of background level. Three Mount Sopris geologists will be on hand to cover any and all course topics you have questions about.
SC-3: What’s NEW! in Slimline Borehole Geophysical Logging?
Course Provider: Mount Sopris Equipment Co., Inc.
Instructors: Jim LoCoco, Taylor Weber, Lia Martinez / Mount Sopris Instrument Company, Inc.
Time: 8:30 a.m. – 4:30 p.m., Sunday March 25th, 2018
Course Description:
New downhole geophysical logging tools and associated software are now available to the near surface geophysical community. This short course and workshop will bring you up-to-date on these new technologies. The morning segments will include discussion on two new technology borehole logging tools.
Spectral induced polarization (SIP) methodology is a relatively new technique in exploration & near surface geophysics, and borehole SIP has not come to the mainstream yet; however, proof of principle testing and validation is ongoing. Borehole SIP testing and comparison to NMR and other classical porosity and permeability estimation tools will be presented. Rutgers University and others are leading the way in the advancement of SIP into the borehole environment. Kemna et al in 2012 described recent results of laboratory testing. Slater (2007, 2016) reviewed geophysical literature focusing on the estimation of saturated hydraulic conductivity (K) from SIP and other measurements. Our short course will address these concepts, applying to new 2018 borehole SIP data. The SIP measurement sweeps the surrounding geo-media with a range of sine wave currents at frequencies ranging from about 1 mHz to about 20 kHz. Impedance |Z| and phase ϕ are determined by correlating induced voltage U and stimulus current I. Examples will be presented. SIP applications are related to its unique (relative to other geophysical methods) sensitivity to the interfacial properties of porous materials. Firstly, SIP is sensitive to fundamental pore geometric properties (surface area to pore volume, critical pore diameter) controlling fluid flow and therefore offers outstanding opportunities for geophysical estimation of permeability. This short course will summarize the explosion of papers describing links between SIP parameters and permeability in the recent literature.
Of interest to near surface geophysicists is a new generation, non-radioactive source neutron tool that delivers in-situ porosity estimates in saturated media, and moisture- content profiling in the vadose zone. This innovative solution will provide a welcome addition for well loggers and geophysicists who are restricted from using Am-Be or Deuterium-Tritium (D-T) sources. Using the 4 Curie equivalent, high-output, long-life electric Deuterium-Deuterium (D-D) fusion neutron generator, the QL40-nGEN provides radiation on/off capability, increasing safety for operators and the environment, while reducing regulatory burden associated with radioactive sources. Our short course will discuss applications, including:
- Semi-quantitative In-situ Porosity
- Petrophysical Properties
- Aquifer Quality and Delineation
- Moisture Content of Unsaturated Media
- Gas-liquid contact delineation
The afternoon session will include new WellCAD version 5.2 processing features.
The new NMR module offers a set of processes to derive total porosity, fluid volumes and permeability (Timur Coates and Schlumberger-Doll-Research) from T2 distribution data. It also provides a dedicated workspace where the user can examine T2 data in detail, add T2 cutoffs and adjust the cutoff times for each imported or interactively defined zone individually. While changing the cutoff time on top of the T2 data the fluid volumes and permeability calculations update in real-time and provide an immediate answer product to the user. Workspace and processes are tool manufacturer independent.
The afternoon session will also include a session on the latest features of WellCAD’s ISI (Image and Structure Interpretation) module, including the color classification algorithm for core and optical televiewer images, along with advances to basic WellCAD features:
| Engineering log enhancements Automated depth matcher Classifier colors Improved three component RGB display New page set up options |
Unit converter Log summary bar New tadpole styles Native WellCAD PDF Auto recovery |
Join us for this informative short course and workshop! We promise a few surprises as well!
