Archive for 2016

Seismic Petrophysics Short Course Update –

Wednesday, October 19th, 2016

A few last minute details:

Class Schedule

We will start the class at 8:00 AM.  Please plan to arrive early to give yourself plenty of time to park, get a cup of coffee and a snack, check emails, and take care of whatever else your morning routine dictates.

We plan to go until about 4:30 PM Thursday, and about noon Friday.



Free parking is available in the Olivier Parking Tower, a short walk away from the UL Student Union, where the class will be held. Parking on campus can be a challenge, so we recommend you take advantage of this perk.  (Campus map attached)

Parking Instructions: Your guests may park in Olivier Parking Tower on the first or second floor using code 1020#, if no spots are available then they may park in the EK Long lot.  

Location of the Class

The class will be held in the Teche Room on the first floor of the UL Student Union. (Building map attached)


Dining and Refreshments

In the interest of keeping class expenses low, we have not arranged for refreshments or meals for the class.  However, there is a Starbucks coffee shop in the Union and there are snacks available there and at other places in the Union.

We will break for lunch on Thursday, but, as mentioned, lunch will not be served for the class attendees.  There are several good, inexpensive choices for lunch within the Student Union.  Campus is a busy place at lunchtime, so if you venture out of the Union for lunch you risk returning late to the class.

If you have any questions please send me an email. 

This should be a great class.  Whether you’re a student or just getting started in the business and need a primer on rock properties and seismic data, or you’ve wrestled with the concepts and realities of tying well log information to seismic data, you should get a lot out of this class.


Thanks for supporting our societies.




Brian Brennan


campusmap2016cj            ul_student_union_map


Wednesday, September 28th, 2016

Where: Petroleum Club of Lafayette

When: 11:30am

Lunch: $20.00 for members

** Bring your 2016-2017 Member Dues!!!**

Luncheon Talks:

Seismic-Based Porosity Prediction in the Silurian Niagaran Formation Reefs of Northern Michigan: An Integrated Case Study




Doug Paul


Doug Paul received a Hon B.Sc. in Applied Earth Science from the University of Waterloo, Waterloo, Ontario, Canada. He worked extensively in the early development of EOR processes with the Alberta Oil Sands Technology and Research Authority (AOSTRA) providing geologic insight into complex reservoir simulation models. After working in conventional geological exploration and development, Doug moved into technology side of the business with Landmark Graphics in Calgary and Houston specializing in the integration of geophysics and geology. He then cofounded Photon Systems in Houston before returning to Calgary when Photon merged with CogniSeis. In 1997 Doug started a consulting company providing interpretation and data management services to Sable Offshore Energy, Mobil, Chevron, Shell, ExxonMobil, and Norsk Hydro, primarily focusing on the Canadian east coast offshore. He consulted for SeisWare and joined them full time in 2007 and opened SeisWare’s US office in Houston providing geoscience interpretation software to the American oil and gas industry.


Doug has authored and presented papers at SEG, CSEG, CSPG and numerous regional symposiums and forums in addition to coauthoring papers with clients showcasing applied, integrated technologies. He is member of the Society of Exploration Geophysicists (SEG), HGS, and other regional geoscience societies throughout the US and Canada.



SWLGS Short Course

Wednesday, September 28th, 2016

Critical Aspects of Seismic Petrophysics:
Rock Properties from Seismic Data

A continuing education class offered by
the Southwest Louisiana Geophysical Society and the Lafayette Geological Society

Dates: Thursday, October 20, 8 AM – 4:30 PM

Friday, October 21, 8 AM – Noon

Place:University of Louisiana – Lafayette Student Union*

Course cost: $100

Instructor:   Dr. Wayne Pennington, Michigan Tech

  • General rock-property relationships — velocities, porosity, and moduli
  • Averaging of constituent properties — Gassmann fluid substitution
  • Sonic logging – compressional and shear
  • Inversion — acoustic and elastic
  • Interpretation of inverted data for rock properties

    Excerpted bio:

• Dr. Pennington has served as the President of the American Geosciences Institute and as the First Vice President of the Society of Exploration Geophysicists. He was a Jefferson Science Fellow at the US Department of State and the US Agency for International Development. He has published dozens of peer-reviewed papers and coauthored one book with two of his students. His degrees in Geology and Geophysics are from Princeton University, Cornell University, and the University of Wisconsin

To register for the class,

Pay Online at


contact Brian Brennan at

* Parking available on campus


LGS and SWLGS BBQ Ice Breaker

Wednesday, September 14th, 2016

When: Thursday September 22, 2016

Where: Vermillionville (Next to Beaver Park)

Tickets ($20) available from:

Lafayette GRC– 233-8197 201 Heymann Blvd.

Mack Energy Co – 988-9260 3861 Amb. Caffery Pkwy.

Stone Energy – 237-0410 625 E Kaliste Saloom Rd,

Acadian Log Library – 233-1430 117 Heymann Blvd.

ULL Geology Dept. – 482-6647 Hamilton Hall
For additional Locations or information call John Hollier @ 781-8615

—————————————————————— Sponsors Needed and Available

Platinum: $1000, Gold $500 – $999, Sliver: $250-$499, Bronze: $100 – $249 Bar Sponsor: $Available

*Sponsors will be recognized at the barbeque, on the LGS website and in the LGS bulletin. Your Sponsorship is greatly appreciated!!!

TECHNICAL MEETING AND LUNCHEON: Tuesday, September 13, 2016

Tuesday, August 30th, 2016

Where: Petroleum Club of Lafayette

When: 11:30am

Lunch: $20.00 for members

** Bring your 2016-2017 Member Dues!!!**

Luncheon Talks:

True Depth Processing

By: Thomas Charlton

TruDepth is Geotrace’s (Stein et al 2013, Hellman et al 2015) new workflow incorporating anisotropic technology that harnesses the power of Kirchhoff prestack depth migration (KPSDM) and true depthing into one single tool. This methodology derives and then uses the anisotropic parameters δ & ε using prior information including wells, tops and VSP’s to produce depth corrected seismic volumes that are not just structurally accurate but they match the geological tops coming from the wells.

Case histories with examples will be presented.

True depth achieved using anisotropic depth migration (2013), J. A. Stein, K. Hellman, S. Boyer and T. Charlton, First Break 31, 10.

Single Pass Multilayer Determination of Anisotropic Velocity Models with Well Constraints (2015), K. J. Hellman, J. A. Stein, T. H. Charlton and S.T. Boyer, 77th EAGE Conference


Speaker Bio:                                          

                                                               Thomas Charlton 
Present Position:                  General Manager Land Processing
Education/Qualifications:   University of Calgary & University of Iowa
Experience:                           Joined Geotrace in 2010 with 21 years industry experience


Tom processes both 2D and 3D datasets, specializing in structured land surveys with noise and static issues.  Since 1994 he has supervised processing groups in Nigeria, Mexico and Canada. He has been responsible for all aspects of data processing including designing AVO compliant run streams for both land and marine surveys.  He has considerable experience in dealing with data from Europe, Africa, and the Americas as well as in reflection/refraction statics computations and pre-stack/post-stack time migration processes.  Tom is a member of both the CSEG and the SEG.


Saturday, May 7th, 2016

Where: The Petroleum Club of Lafayette

When: 11:30am

Lunch: $20.00 for members ** Be Sure to Bring Your 2015-2016 Membership Dues!**

Luncheon Talks:  

 Detailed Velocity Model Building with Full Waveform Inversion

An accurate earth model is key to any successful depth imaging effort. Full-waveform inversion (FWI) is an advanced velocity model building process that uses the full two-way wave equation. Traditional methods use a ray-tracing approach to distribute velocity errors within the model.

The industry has moved to using two-way wave-equation migrations commonly known as reverse time migration (RTM), especially in areas of complex geology such as the salt bodies in the Gulf of Mexico, offshore West Africa, Brazil, and the Red Sea. The velocity model, including velocity anisotropy, is key to any depth migration effort. The natural next step is to use the two-way wave equation for velocity model building too. One of the most advanced tools for velocity model building using the two-way wave equation is full-waveform inversion. Full-waveform inversion uses computer-intensive forward modeling of the seismic measurement combined with residual wavefield back propagation to iterate to a final velocity model, which can provide greater detail than tomographic ray-tracing approaches.

FWI has recently emerged as one of the most exciting new techniques in the seismic industry thanks to its potential to deliver very detailed velocity models. It is also a paradigm shift in a way we process seismic data since it allows us to start the velocity model building phase on raw shots, with little need for pre- processing steps.

Most of the examples shown in literature are based on FWI applications where the starting velocity models for the inversion are derived by several iterations of traveltime tomography and are kinematically accurate. The reason for this is that FWI relies on solving a highly non-linear inverse problem using a gradient based technique; therefore it is very sensitive to the presence of local minima. These occur when the data predicted by the starting model differ in arrival time by more than half a cycle with respect to the real data.

Comparison between migrations using FWI velocities derived in this way and migrations using the starting tomographic models often yield disappointingly small differences, even though the FWI velocities appear to contain a lot more “geological” detail. Analysis of Common Image Point (CIP) gathers shows traveltime tomography is usually doing a good job at recovering long wavelengths of the velocity model which account for the bulk of the gather flattening required for a good image. There are particular settings where tomography struggles and where FWI can instead provide an accurate solution. We include two different examples below where we see FWI as a real game changer:




Monday, April 11th, 2016

Where: The Petroleum Club of Lafayette

When: 11:30am

Lunch: $20.00 for members ** Be Sure to Bring Your 2015-2016 Membership Dues!**

Luncheon Talks:  

A Case History of Andrews Field, Louisiana


Steve Anderson


The Andrew Field area is a puzzle, wrapped in an enigma, surrounded by mystery. The area is six miles west of Maurice Louisiana and the major Upper Frio biostratigraphic zones are Camerina, Miogypsinoides, and Cibicides hazzardi (Marg. tex.). The Andrew area is an Upper Frio Slope Sandstone according to GRI. The area was initially drilled deep by Arco and Amerada, the wells had massive Cib. haz. (Marg tex) sand wet and the offsets had no sand. Based on 2D data, it was interpreted to be very complex stratrigraphically. My opinion is the area is complexly faulted with the no sand wells faulted out. The first production in Andrew was in the Marginulina howei sands. A deep well, the Amerada Hunter No 1 had shows in the Camerina 1 and 2 sands, pay in the Miogypsinoides, Marg. tex., and apparent pay in the Marg howei. So our friends at Amerada completed the well in the Marg. tex. with what looks to be sixty feet of pay. The well only produced 0.2 BCF, the well was re-completed to the Miogypsinoides which produced a measly .03 BCF. By this time the lease block fell into the hands of Jack Barry and Bob Hargrave, an independent geologist and landman, who brought a Camerina deal to Quintana. QPC drilled three productive wells which would cum. about 30 BCF from the Camerina 1 and 2 sands.


In 1993, the Quintana Camerina production was sold to Burlington. The best well was the Quintana Annie Mae Simon which was completed in the Camerina 1 sand as this sand’s unit covered more area. The Camerina 2 sand was to be produced later with a selective completion and plugged off. After the Simon well produced for 20 years, it was reasoned that a new well should be drilled rather trying to go back down the hole. The Burlington Annie Mae Simone 2 blew out and was plugged in July 2005. The drilling in this area is hampered by the pore pressure and frac gradient being very close so when increasing mud weight, the hole starts taking mud. Then the mud weight is decreased, the well tends to flow. Burlington sold the reserves to Walter Oil and Gas. Walter drilled the Annie Mae Simon No 1 in August 2005.


In 1998, Fairfield Resources shot a speculative 3D. Several prospects were identified but with the changing economics, Fairfield dropped out. The Reef Lucy Thomas 1 was drilled and productive in the Camerina 2 which appears to have an amplitude anomaly associated with production. The Lucy Thomas No 1 was drilled with the 3D data. The production in the Camerina 2, in the Walter Annie Mae Simon No 1 is also associated with an amplitude anomaly.


Arb lines from the 3D will be shown, to explain the progression of drilling and production. The Andrew area has big reserve potential in the deeper section which can be tapped once the current 3D is reprocessed and merged to image the deep Cib. haz (Marg. tex.) section.


Steve Anderson Bio:


Biography of Steven S. Anderson


Steve moved to Lafayette in July, 1975 when the bars did not close and Judge Roy Bean’s was the best pick up place in the South. It was rumored even geologists could pick up girls there. His first company was Union Oil of California. Coming off the training program, work was to interpret “spec” 2D data for Gulf of Mexico area wide lease sales as an exploration geophysicist. Steve worked W.C. Block 536 in which Union-Texaco bid $106 million for a 5000 acre tract. In 1981 Steve left Union Oil, to join Ada Exco, a small dysfunctional independent concentrating on onshore Louisiana. After one year, Steve joined Quintana Petroleum. During the “bust years” of 1985-1989, Quintana was one of South Louisiana’s most active drilling companies. Quintana took outside deals as well as internally generated prospects. Quintana made discoveries in Andrew, Wright, West Lake Arthur, Maurice, Orange Grove, Lyons Point and Bayou Sauveur. Steve joined Flores and Rucks in 1992, as a consultant and Exploration Manager from 1994-1996. After leaving Flores and Rucks, he has worked as a consultant with Rozel, Petroquest, Petsec, Mandalay, and many other small companies in Lafayette. He has had discoveries in Riceville, Andrew, Cossenade and is currently working in Section 28 Field with five productive wells with Termo and Penta Resources. He has recently consulting for DEEP, a Houston start-up company.


Steve is a 1975 graduate of Colorado School of Mines in geophysical engineering. He was a professional engineer in Colorado. He attended USL (now ULL) and completed all the course work for a masters in geology.



Thursday, February 25th, 2016

Where: The Petroleum Club of Lafayette

When: 11:30am

Lunch: $20.00 for members ** Be Sure to Bring Your 2015-2016 Membership Dues!**

Luncheon Talks:  

Technology and Innovation are the Engines that Create Exploration Opportunities: Examples from the Deep Water Gulf of Mexico


Barney Issen

Ben Carsey Distinguished Lecturer & AAPG/SEG Inter-Society Distinguished Lecturer


The deep water Gulf of Mexico play is a classic textbook example of an opportunity that simply would not exist without constant technical innovation. Variations of this talk have been used to explain our industry to people without any science background; for this Distinguished Lecture series it has been modified to be more suitable for earth scientist audience that is perhaps more familiar with the production environment than with “big-E” Exploration.

The deep water Gulf of Mexico play is a classic textbook example of an opportunity that simply would not exist without constant technical innovation. Variations of this talk have been used to explain our industry to people without any science background; for this Distinguished Lecture series it has been modified to be more suitable for earth scientist audience that is perhaps more familiar with the production environment than with “big-E” Exploration.




Barney’s academic work at the University of Arizona emphasized hard-rock (mineral) geophysics, planetary science, and tectonophysics, so he entered the oil industry with few preconceptions beyond the Wave Equation. In 3+ decades with Chevron, he has witnessed and helped to nurture the emergence of 3D seismic data, depth imaging (first post-stack, then pre-stack), earth modeling, and visualization. Barney actually does play a geophysicist on TV, appearing in the Chevron “We Agree” ad campaign, as well as representing Chevron (and, by extension, our industry) in interviews with NBC Today, ABC 20/20, PBS Nightly Business Report, CNN, Fox News, NPR All Things Considered, NY Times, Wall Street Journal, Financial Times, Houston Chronicle, Contra Costa Times, Newsweek, Forbes, Wired, and MIT Technology Review.

TECHNICAL MEETING AND LUNCHEON: Tuesday, February 16, 2016

Friday, February 12th, 2016

Where: The Petroleum Club of Lafayette

When: 11:30am

Lunch: $20.00 for members ** Be Sure to Bring Your 2015-2016 Membership Dues!**

Luncheon Talks:  

Soil-type estimation beneath a coastal protection levee, using resistivity and shear wave velocity.

By: Juan M. Lorenzo


Unconsolidated Holocene deltaic sediments comprise levee foundation soils in New Orleans, USA. Whereas geotechnical tests at point locations are indispensable for evaluating soil stability, the highly variable sedimentary facies of the Mississippi delta create difficulties to predict soil conditions between test locations. Combined electrical resistivity and seismic shear wave studies, calibrated to geotechnical data, may provide an efficient methodology to predict soil types between geotechnical sites at shallow depths (0- 10 m).
The London Avenue Canal levee flank of New Orleans, which failed in the aftermath of Hurricane Katrina, 2005, presents a suitable site in which to pioneer these geophysical relationships. Preliminary cross-plots show electrically resistive, high-shear-wave velocity areas interpreted as low-permeability, resistive silt. In brackish coastal environments, low-resistivity and low-shear-wave-velocity areas may indicate both saturated, unconsolidated sands and low-rigidity clays.

Author Bio:

Juan M. Lorenzo graduated as a geologist from the University of Barcelona in 1983.  The following year he came to the US as a Fulbright student and concentrated on Marine Seismology for his Ph.D. (1991) dissertation at Columbia University.  Since then he has participated in 7 marine geophysical and drilling cruises and led two land-based seismic experiments in central and northern Chile: in 2001, 2007-8.
Currently he uses land- and laboratory-based seismic experiments to research physics models for unsaturated soils (New Orleans levees), the dynamics of shallow faulting (Gulf Coast of Mexico), and microearthquake source mechanics of crack-fault interactions.


Wednesday, January 6th, 2016


Where: The Petroleum Club of Lafayette

When: 11:30am

Lunch: $20.00 for members ** Be Sure to Bring Your 2015-2016 Membership Dues!**

Luncheon Talks:  

Development and distribution of Salt Keels in the Deepwater Northern Gulf of Mexico

By Carl Fiduk

The development and distribution of salt keels projecting below the base of allochthonous salt as observed on modern 3-D seismic data in the deep Northern Gulf of Mexico is not random. Although keels may form by several different processes, a suite of keels which form due to extension of sub canopy sediments on a detachment within Oligocene-to-Eocene strata have a unique profile and distinct location. Regional mapping of the base of the salt canopy reveals that keels of this type are found parallel to, but offset shelfward (updip) from the present day Sigsbee Escarpment. This relationship holds across all of Keathley Canyon OCS area and into the Alaminos Canyon OCS area. Keels formed by other processes do not show this unique pattern.

The distanced between keel structures and the Sigsbee Escarpment varies from 10-30 km. The keel structure itself is not a single discrete feature but a series of linked shorter keels. Linkage style between keels appears similar to that for growth faults (relays). The location for detachment initiation and the orientation of individual keels can change markedly between salt lobes comprising the allochthonous canopy. The location for detachment initiation is often found in close relationship with deeper salt structures. Sparse well data indicate that the timing for displacement, which occurred after emplacement of the shallow canopy, is Plio-Pleistocene and therefore geologically quite recent. I speculate that the location where displacement initiates is structurally controlled and has relationships to deeper salt features and flexure points caused by updip crustal loading.

Author Bio:

Dr. Joseph Carl Fiduk


Carl Fiduk graduated with a B.S. (1979) and an M.S. (1982) in Geology, both from the University of Florida. He later received his M.B.A (1985) degree from the University of Texas of the Permian Basin and his Ph. D. in Geology and Geophysics from the University of Texas in Austin (1994). He has worked for the USGS, Gulf Oil, Discovery Logging, the Texas Bureau of Economic Geology, British Petroleum, Texas A&M University, the University of Colorado, CGG, CGGVeritas, WesternGeco/Schlumberger and as a private consultant. His research interests cover sedimentology, coastal and shelf clastic deposition, salt structural deformation and evolution, basin analysis, shelf margin to deep marine depositional processes, petroleum systems analysis, and the use of three-dimensional time and depth data in petroleum exploration. He is currently involved salt-sediment interaction research in the Flinders Ranges, South Australia, fluvial deltaic deposition in the Cretaceous Seaway of NW Colorado, and deep marine stratigraphic analysis in the Gulf of Mexico. Carl is presently Senior Geophysicist for Freeport McMoran O&G working in Houston, TX. In 30+ years as a working geoscientist he has published over 80 peer-reviewed abstracts and papers.

Carl Fiduk picture