September 16th Speaker

Daniel C. Steward - The 100-Year History of the Pacific Section of the American Association of Petroleum Geologists

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September Speaker

Abstract

The idea of the Pacific Section AAPG was born in San Francisco through a conversation between Earl Gaylord and noteworthy geologists Roy Collom, Joseph Alexander Taff, and the Gester bothers. Southern California was the intended location for the start of the new organization and Frank Hudson was recruited to promote the idea among locals and was appointed as temporary chairman at the new organization’s Los Angeles meeting in September of 1924. Over the next 100 years, the Pacific Section would pull together at least 14 geological societies, and sanction +5,000 collaborations in the form of annual Section or monthly Society meetings, fieldtrips, seminars, and short courses, in addition to several national AAPG meetings hosted by the Pacific Section along with sister society partnerships. The friendships established, on top of the education and knowledge transfer amongst members, enabled by the Society, certainly aided directly and indirectly in the discovery and development of a significant portion of the oil and gas resource of California. Through a formidable and growing publication collection, an invaluable networking apparatus, and zealous officers and members throughout the decades who volunteered their time and talent, the Pacific Section has proved to be integral to the past and present flourishing of geoscience on the West Coast.

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September Speaker

Bio

Dan Steward, a native of Taft, California and alumni of CSU, Bakersfield (BS & MS Geology) and Rice University (MBA), is the current president of the Pacific Section of the American Association of Petroleum Geologists and president of the LABGS since 2022. Dan currently runs Iron Horse Consulting from their home in Corona, California, with a focus on subsurface stratigraphic characterization in support of groundwater-related projects. His remaining available time is divided between the family real estate businesses, their four college-age daughters’ goings-on, volunteering with the Section and Society, hitting the mountain bike trails, pursuing intriguing geological phenomenon that he never had time for, both surface and subsurface, and enjoying the company of family and friends far and wide. In his 26-year professional career, Dan worked for Arco Exploration, Chevron (both in Bakersfield); Noble Energy, Lukoil International, Total, Iron Horse Energy LLC, and Amplify Energy (Houston & Long Beach). These experiences covered the San Joaquin Basin (SJB), the Los Angeles Basin, the deepwater Gulf of Mexico (U.S. & Mexican areas), the west African margin (Cameroon, Equatorial Guinea, Sierra Leone, Cote d’Ivoire, Ghana) , the Black Sea (Romania), the Barents Sea (Norway), and various proved-developed-producing pursuits in the Salinas Basin, on the Permian Shelf of eastern basin by the same name, and the SJB. Dan and his wife Sandra and three of their four daughters relocated to California from The Woodlands, Texas in 2019 and remain extremely happy to be back in their home state.

Thank you to our Sponsor
Petro Log 

Petrolog, Inc, is a Geological Well Logging Company (mudlogging) based in Ventura, California. The company was founded by my parents (Tom and Evelyn Queenie Williams) in 1961; Petrolog has logged approximately 2500 wells, primarily onshore and offshore California.

It is my pleasure to sponsor Coast Geological Society, which is an affiliated Society of the Pacific Section AAPG and AAPG. I look forward to sponsoring our first meeting of the new 2024-2025 season, Tuesday, September 17th 2024, 6pm, at beautiful Poinsettia Pavilion, Ventura.

Scooters Catering will provide a great dinner setting, served by students from Santa Barbara City College; plus our icebreaker has tasty horderves and refreshments, provided by our CGS Logistics Committee; our enjoyable social starts at 6pm; it’s an opportunity to visit your geologic friends, and then hear a stimulating geologic talk by Dan Hollis, “Using Ambient Earth Vibrations to Image and Monitor the Earths Subsurface”.

My comments on Mud-Logging and oil & gas drilling in California.
The end of oil/gas drilling in California’s has already happened, descending since 2015; capitulation occurred in early 2020, from 25 to 3 rigs now. Today there are no rank wildcats, semi-exploratory, field development wells being drilled. Drilling permits are either not issued or not utilized. The “Munger OilOgram” scout report, first published in 1919; was last published on August 16, 2023, with only 4 rigs drilling. Unfortunately the owner of Munger passed away and no one has resumed the publication for obvious reasons. In California’s not-so-distant-past the rig count was consistently between 50-150 rigs. No drilling means oil production declines, we import more oil and pay more than the rest of the Nation.

So you may ask, is “Mud-Logging” needed in California. Yes, but not for oil and gas. For the last 4 years Petrolog has been primarily engaged by Southern California Gas Company, (is not an oil company). For example, at Honor Rancho, Valencia, California, SoCalGas have drilled deep gas storage replacement wells. Those wells target the “Wayside 13 sand”, a coarse sand–pebbly turbidite, encased in Modelo (Monterey Fm) siltstone-claystone. Petrolog has also logged complicated abandonments at Aliso Gas Storage Facility, near Porter Ranch. Elsewhere, drilling with mud-logging occurs in our geothermal fields, Salton Sea, Geysers in northern California and Cosos in Inyo County (not oil drilling). The newest potential drilling is CO2 gas sequestration wells. CO2 sequestration is interesting and may offset burning “fossil fuels”. There are several CO2 drilling projects in the works.
Oil is powerful! Did you know, that one gallon of gasoline is equivalent to about 31,000 calories of energy? One gallon of diesel is roughly 35,000 calories, WOW! That’s a lot of power at $75/barrel; one $4 gallon will transport you 30 miles in a 4000 pound vehicle, double WOW! Except for nuclear, oil is an unequaled on demand powerhouse. A gallon of whole milk is roughly 2400 calories.

A Last Note: A big sign of change, Chevron (Standard Oil of California) has closed its San Ramon Corporate headquarters and are moving to Houston, Texas. Chevron is the 2nd largest publicly traded oil company in the United States. Standard Oil has operated in California since 1875, when it drilled the first “commercial” oil discovery at Pico Field, in the eastern Ventura Basin.

Petrolog, Inc.
John T. Williams, CA P.G. #5899
President
805 231 3793 cell, business jtw@petrolog-geological.com , personal jtwrockoil@gmail.com

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MEETING HOURS
Third Tuesday of Every Month: 6PM – 9PM
LOCATION
Poinsettia Pavilion
    3451 Foothill Rd Ventura, CA 93003
CONTACT
Have Questions? Email: coastgeologicalsociety@gmail.com
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