Archive for 2014

TECHNICAL MEETING AND LUNCHEON: December 9, 2014

Sunday, December 7th, 2014

Where: The Petroleum Club of Lafayette

When: 11:30am

Lunch: $20.00 for members ** Be Sure to Bring Your 2014-2015 Membership Dues!**

Luncheon Talks:  

PRACTICAL SEISMIC PETROPHYSICS: 

THE EFFECTIVE USE OF LOG DATA FOR SEISMIC ANALYSIS

By: Tad Smith

ABSTRACT

The conditioning and analysis of log data for quantitative seismic interpretation is often simply categorized as “rock physics.”  Unfortunately, rock physics workflows often overlook or oversimplify the proper editing and interpretation of log data, the result of which can be unrealistic expectations and interpretations of seismic amplitude responses.  The more encompassing phrase “seismic petrophysics” better describes the necessary linkage between petrophysics and rock physics.  Seismic petrophysics not only includes rock physics, but also includes the proper conditioning and interpretation of log data that should occur prior to the application of rock physics and seismic models.  This is especially true in conditioning log data for shear-wave velocity estimation, fluid substitution calculations, and AVO modeling.

This talk will focus on the important role of “seismic petrophysics” in the quest to extract additional information from subtle seismic responses.  Topics covered will include various aspects of log editing, petrophysical interpretation (including integration of other data sources- core, fluids, pressures, etc.), and some common pitfalls associated with the “workhorses” of rock physics (invasion corrections, shear velocity estimation, and elements of fluid substitution).   It is important to recognize that log data should not simply be recomputed to fit prior expectations as defined by a rock physics model.  Instead, rock physics models should be used as templates, which allow the interpreter to better understand the underlying physics of observed log responses and how they are governed by local petrophysical properties. Case studies will be used to reinforce critical concepts.

AUTHOR BIO:

Tad Smith manages the Geoscience group within the Exploration and Production Technology Group at Apache Corporation.  Prior to joining Apache, Tad held a variety of positions as a geologist and petrophysicist at various companies, including Amoco, BP, Newfield Exploration, VeritasDGC, CGGVeritas, and ConocoPhillips.  In 1995 – 1996, he participated in the Amoco Petrophysics Training program, where he developed a keen interest in petrophysics and seismic rock properties (“seismic petrophysics”).  Since then he has been actively engaged in the process of integrating petrophysical data into geophysical work-flows.  In 2011 he was the North American Honorary Lecturer for the SEG, with the topic of his tour being “Seismic Petrophysics”.  Tad was president of the Geophysical Society of Houston during the 2013-2014 term, and is currently the immediate past president.  From 2010 – 2014 he served on the editorial board for The Leading Edge, and served as the Board chair during the 2013-2014 term.  Tad has a PhD in geology from Texas A&M University, and is a member of AAPG, SEG, SPWLA, SPE, GSH, and the HGS.  When he’s not working on interesting petrophysical problems, he enjoys time with his wife and son, riding bikes, spending time with good friends, and listening to good music.

2015 Near Surface Geophysics Asia Pacific Conference

Monday, November 17th, 2014

The 2015 Near Surface Asia Pacific Conference will focus on near-surface issues within the entire Pan-Pacific region and will provide a world-class forum for new technical advances, developments, and applications in near-surface geophysics.

Abstract Submission
All abstracts along with application forms must be submitted electronically to nsgapc@seg.org in PDF format by 6 January 2015. Student papers are encouraged.

PLEASE SEE ATTACHED PDF FILE FOR MORE INFORMATION

NSWaikoloa15CFP110414

ULL SEG Fundraiser

Friday, November 7th, 2014

The ULL SEG Student Chapter is holding a fundraiser at Santa Fe Cattle Co. in Broussard, LA. 10% of all sales with go to the students! Live music from 8-10pm! See the posted brochure for more details!

 

SEG Fundraiser Brochure

Double Header Technical Meeting and Luncheon: Tuesday, November 11, 2014

Tuesday, November 4th, 2014

Where: The Petroleum Club of Lafayette

When: 11:30am

Lunch: $20.00 for members ** Be Sure to Bring Your 2014-2015 Membership Dues!**

Luncheon Talks:  

Getting the Last Few Drops out of a Large Oil Reservoir in South Timbalier 52 Field, Gulf of Mexico BY: Dave Fugitt

ABSTRACT

Chevron has put an emphasis on increasing the recovery in its existing reservoirs through better reservoir management. The 9000’ sand reservoir “B” is the single largest oil reservoir in South Timbalier 52 Field. It has produced over 26 MMBO (million bar- rels of oil) and 24 BCFG (billion cubic ft of gas) since the start of production in 1984. The 9000’ sand is a thick deltaic sand with a 140 ft hydrocarbon column. The reservoir was initially developed with seven wells in the mid-1980s; individual well production ranged from 2 MMBO to 5.7 MMBO. In 1999, Chevron drilled an updip well, the 14ST2, to drain the attic reserves in the field. This well has produced almost 1 MMBO to date. In 2012, Chevron approved an additional attic well, the 13ST2, about 1900 ft south of the earlier 14ST2 well. The location was based on a study of the water cuts of the producing wells in the reservoir through time and the spacing of the remaining pro- ducers. Prior to the drilling of this well in 2013, the asset team tried to identify other areas of the reservoir that might have bypassed reserves by looking at multiple pulsed neutron logs that had been run in the producing wells over time. The pulsed neutron logs showed an uneven movement of the water contact and suggested that individual wells were only draining oil from a radius of between 800 and 1500 ft around the well- bore. This was confirmed by the results of the 13ST2 well, which found an oil-water contact over 30 ft lower than the contact in the 14ST2 well. The 13ST2 well was put on production with an initial rate of over 500 BOPD (barrels of oil per day). The pulsed neutron log study indicated there was remaining undrained oil in the northern part of the reservoir. Chevron is planning to drill a well in that area in 2014. The asset team gained a better understanding of the 9000’ reservoir and how it produced by looking at historical pulsed neutron logs and water cut information through time. Applying this knowledge has led to increased recovery of the original oil in place.

SPEAKER BIO

David Fugitt is a senior asset development geologist with the Chevron Gulf of Mexico Business Unit and is based in Lafayette, Louisiana, U.S.  He joined Chevron in 1978 after receiving a bachelor’s degree in geology from The Ohio State University in 1976, and a master’s degree from Texas A&M University in 1978. Mr. Fugitt was a speaker at the 2014 GCAGS Annual Convention.

AND

Interpretation Visualization in the Petroleum Industry – Research in Halokinetics through new visualization tools and techniques BY: Robert Woock

ABSTRACT

Current high end visualization (Insight Earth) of various salt and sediment features in the GOM from use of watershedding, co-rendering and other visualization technologies leads to insights. These insights include economically important findings related to structural history, depositional stratigraphy and drilling environment parameters. Examples include a documented thrusted extrusive body near Mad Dog and the documented Rum roho allochthonous salt sheets as originally detailed by Schuster (AAPG Memoir 65, 1995) and Hudec (AAPG 2008Annual Convention Abstracts) and other authors. Watershedding is a descriptive term for volume segmentation, which is a statistical technique for dividing a volume into different regions as demonstrated by use of a watershed algorithm. This algorithm separates a volume into regions based on the grayscale value of an attribute, and falls into the class of algorithms that are used for image processing. The result is the creation of enclosed, contoured regions called “basins” and “watersheds” that mark the division of discrete regions based on a selection criterion within an area of interest. Segmenting the structural analysis of a seismic volume in this fashion allows for the creation of attributes that may be useful for structural interpretation, seismic facies analysis, and geologic reservoir modeling. Watershedding yields internal structural details within salt bodies which are difficult to discriminate on typical reflectivity data due to low reflectivity or low reflectivity contrast. The ability to see internal salt structure gives the interpreter the opportunity to image overturned sections near the base of salt bodies and recurrent toe thrusts which resemble offset stacked anvils. Identifying and mapping these features can lead to the ability to characterize intra-salt boundaries for drilling risks. Visualizations of the Rum roho enhance understanding of regional and local stresses. Inferences of pre-roho stratigraphy may impact many phases of asset assessment.

SPEAKER BIO

Rob is a geophysicist with 36 years of professional experience. He has enjoyed working with several majors and independents applying Basin Modeling, portfolio analysis, play fairway analysis, and confidence analysis. He has worked the GOM, Gulf Coast, various onshore resource plays, China, Gabon, Benin, Ivory Coast, NW Africa, and West Africa, Qatar, and other areas in the Middle East region. Rob has presented and published on hydrocarbon detection and delineation techniques in the various venues and has collaborated on several other published topics.

He is married to Cresside (Daigle) from New Orleans where they both enjoyed league soccer for many years. They have three wonderful children and are picking up new and old hobbies since the nest is empty. In their spare time they are busy establishing a new farm venture called Beka. Rob has a SEL private pilot’s license and would like to get an instrument rating someday. Sailing as also been a lifelong interest.

Technical Meeting and Luncheon: Tuesday, October 14th, 2014

Friday, October 10th, 2014

Where: The Petroleum Club of Lafayette

When: 11:30am

Lunch: $20.00 for members ** Be Sure to Bring Your 2014-2015 Membership Dues!**

Luncheon Talk: Subduction, megathrusts and underwater landslides: what the 2011 Japanese tsunami has thought us on tsunami hazard

Abstract:

Many discrepancies have recently appeared when numerical modelers have tried to reproduce the Tohoku tsunami of March 11, 2011. Models of subduction dynamics have shown that while the timescale of the suduction process is controlled by the mantle flow, the coupling of the downgoing and overriding plates depend on the plate strength. Applying this insight to megathrusts it emerges that a release of gravity energy due to a reorganization of the crustal wedge is necessary to explain the observed run-up heights of up to 40 m measured along the coast the northeast part of Honshu Island. I will discuss how this finding has shed new light on the hazard related to landslide induced tsunamis in geological critical areas such as the Mississippi Fan in the Gulf of Mexico.

Speaker Bio:

Dr. Gabriele Morra completed his PhD in computational geophysics from the ETH Zürich/Switzerland in 2005. Later he took up a two-year postdoctoral fellowship at the Institute of Computational Sciences at the ETH in the group of Petros Koumoutsakos, a world leader in turbulence modeling. Dr Morra moved then to Rome, Italy, where he focused on the study of megathrusts in subduction zones. In 2009 he won a Swiss National Foundation Advanced Researcher Fellowship to work at the School of Geosciences of the University of Sydney. There he developed statistical and numerical methods to discover the mechanisms behind global plate reorganizations, which happen on intervals of 50 Myrs. After two years as Research Professor at the Seoul National University, he joined the faculty of the Department of Physics and the School of Geosciences at UL Lafayette.

Technical Meeting and Luncheon: WEDNESDAY, September 10, 2014

Wednesday, September 3rd, 2014

Our September meeting will be held on September 10, 2014 at the Petroleum Club of Lafayette and will be hosted by Ikon Science.

Lafeyette Lunch & Learn – A new Joint Impedance & Facies Inversion system

The talk:

Introducing Ji-Fi – A New State-of-the-art Seismic Inversion System 

 Whilst you enjoy some good food,

Dr. Michel Kemper, Director of Research and Innovation at Ikon Science will introduce Ji-Fi, a new Joint Impedance & Facies Inversion system, which gives a significant increase in quality over model-based Simultaneous Inversion.

He will review Simultaneous Inversion, then introduce Ji-Fi and compare one against the other, first with a wedge model and then by case study.

We will provide a delicious buffet lunch at the start for you to enjoy during the event. Please be sure to register if you would like to attend.

LGS/SWLGS Annual BBQ Icebreaker

Tuesday, September 2nd, 2014

The LGS/SWLGS Annual BBQ Icebreaker event will be held on September 11, 2014 at Vermilionville (300 Fisher Rd., Lafayette, LA 70508).

Festivities begin at 6:00pm and last until 10:00pm.

Tickets: $15 (must be purchased in advance)

Includes: BBQ Beef & Chicken, Cajun Rice, Baked Beans, Soft Drinks, Beer, Wine & Live Music!

Purchase tickets from:

Kelly Poret- Stone
Nancy Brown- LGRC
Cathy Bishop- ULL
Mary Broussard- Freeport-McMoRan Joey Grimball- Chevron

Or via PayPal at lafayettegeologicalsociety.org Contact samantha_leone@fmi.com with questions

Official Flyer:  LGSBBQFlyer

 

2014 SWLGS Crawfish Boil and Golf Tournament

Thursday, March 13th, 2014

The 2014 SWLGS Crawfish Boil will be on Thursday May 1, 2014 at 5:30 pm.

It will be held at the American Legion Hall, 1501 Surrey Street, Lafayette, LA

Tickets are $10 for non-golfers and available at the door. Crawfish Boil is included in cost of Golf Tournament.

The Golf Tournament is the following day, Friday, May 2, 2014

It will be held at Farm D’Aillie in Carencro, LA and begins at 8:00am

Register online for the SWLGS Golf tournament here

The registration form with more details is available here: SWLGS Golf Registration Form

 

Technical Meeting and Luncheon: MONDAY March 17, 2014

Saturday, March 8th, 2014
Where: The Petroleum Club of Lafayette
Time: 11:30 am
Lunch: $20.00 for members
Luncheon Talks: Hydraulic Fracturing and Earthquakes: Ethically, How do we move forward and do the right thing? 

Donald D. Clarke, AAPG Distinguished Ethics Lecturer

If it is more convenient for you, your luncheon ticket may be purchased online. Please bring a copy of your receipt to the meeting.
SWLGS Luncheon Tickets