July 2015 - Utah Geological Association
Transcription
July 2015 - Utah Geological Association
Newsletter of the Utah Geological Association P.O. Box 520100 – Salt Lake City, Utah 84152-0100 http://utahgeology.org VOLUME 47, NUMBER 7 July 2015 UGA Luncheon Meeting July 13, 2015 Understanding Source Rock and Reservoir Rock Plus Tectonics Along with Timing of Hydrocarbon Migration into the Thrust Belt and Foreland Areas of the Cordillera of North America, and More Specifically into Mississippian Carbonates of the Central Utah Thrust Belt Michael L. Pinnell, consultant, 8171 Old Coventry Circle, Sandy, UT 84093, [email protected] Spiro G. Vassilopoulos, consultant, 909 Rio Vista Circle, SW, Albuquerque, NM 87105, [email protected] Floyd C. Moulton, consultant, 5600 South Highland Drive, Holliday, UT 84121 This paper examines the source rocks, reservoir rocks, tectonics and timing of hydrocarbon migration from the hingeline and foreland areas of northwestern North America. Beginning with southwestern Canada and terminating within the Central Utah Thrust Belt, we will attempt to demonstrate that large accumulations of hydrocarbons are yet to be discovered with the largest potential reservoirs in Mississippian carbonates of the Central Utah Thrust Belt (CUTB). Southwestern Canada: When mostly Devonian age oil migrated in late Cretaceous from carbonates and other source rocks of the hingeline of southwestern Canada, there was only one anticline in the area of the future thrust belt. We name it proto-Turner Valley, where at least two billion barrels of oil accumulated. Most of the oil continued to migrate up-dip and to the northeast. Perhaps channeled at least in part by the Peace River Arch, migration ended at an unconformity/pinch-out trap of Cretaceous shales on Cretaceous sands and Mississippian carbonates which were in nonconforming contact with Precambrian granite of the Canadian Shield. As source rocks continued to mature during later Cretaceous and early Tertiary, the thrust belt simultaneously developed. Condensate and natural gas migrated, filling about 40 major anticlines. Later uplift and erosion breached portions of the giant stratigraphic trap to the east in the Athabasca-Cold Lake area which contained upwards of 2.5 trillion barrels of oil. Mining began in 1967. Today about two million barrels of oil per day are extracted and refined. Western Wyoming, eastern Idaho and northwestern Utah: The Permian Phosphoria Formation yielded vast amounts of oil and some gas from a backarc basin along the continental margin. These hydrocarbons migrated eastward, probably during late Triassic or Jurassic, through Permo-Penn Tensleep-Weber and equivalent sandstones. During that time frame anticlines were absent and no hydrocarbons were deposited in the future thrust belt trend. Anticlines formed much later, probably during late Cretaceous and early Tertiary. There were, however, many subtle structures (like protoLost Soldier-Wertz) and stratigraphic traps (in the Big Horn Basin), some very extensive, in the foreland to the east in Tensleep-Weber equivalent sandstones. These traps had most likely formed along structural anomalies created above junctions of differential Precambrian litho-provinces during early North American plate convergence with the Farallon (Pacific) plate. The largest of these early foreland structures was the proto-LaBarge anticline. During Laramide tectonics, the positions of many of these early, pre-Laramide anomalies were reactivated. The results were complex, tight, often wrench-related smaller volume folds. Hydrocarbons were sometimes lost during this process as determined in recent studies of the Lost Soldier area of central Wyoming. In addition, during Laramide tectonics large anticlines formed that had not been at the earlier locations of antecedent, oil-filled earlier structures. These are not productive. By the time anticlines formed in the western Wyoming-Eastern Idaho-Northern Utah thrust belt, hydrocarbon migration from Paleozoic source rocks of the hingeline had ceased. Sub-thrust Cretaceous rocks were sufficiently charged with hydrocarbons in a limited area directly associated with the Tertiary Fossil Basin of southwestern Wyoming. This is where organic rich Cretaceous shales were buried deeply enough to yield oil and gas. These hydrocarbons migrated upward through conduits created by or associated with thrust faults (or in some cases by direct contact with reservoir rocks) to charge about a dozen major anticlines. The producing traps were limited only to the Absaroka Thrust system. Other adjacent thrust-fault systems were not hydrocarbon charged. In addition, all thrusted anticlinal trends north of the Fossil Basin area (with a few minor exceptions) appear to have insufficient subthrust Cretaceous source rock or insufficient burial depth to generate oil and gas. Central Utah Thrust Belt (CUTB): Carboniferous age shales and marlstones in western Utah and possibly eastern Nevada were the source rocks for oil and gas. These hydrocarbons migrated easterly, up-dip. The proto-Covenant anticline appears to have been charged with oil and gas, prior to thrusting, in the trend that would later become the Pavant-Canyon Range-to Salina-Gunnison fault system. The aforementioned is the primary CUTB area of interest as defined by Schelling, et al., in the 2007 UGA guidebook. Oil, but not gas, migrated after thrusting from the original, proto-Covenant accumulation, into Navajo Sandstone which was involved in a back-thrusted anticline of the Salina thrust system. Wolverine Gas and Oil discovered this accumulation, named Covenant, in 2004. Providence field was discovered later along the same trend producing Carboniferous aged oil and gas from Navajo Sandstone. These hydrocarbons had migrated from a local source area and may not be a commercial deposit. Are there other Navajo fields? Can we assume that no additional, commercial oil and gas accumulated after Sevier age thrusting given that over two dozen dry Navajo Sandstone test wells (on seismically defined anticlines) were drilled following the Covenant discovery? Furthermore, can we assume that no other pre-Sevier, proto-Covenant-like anticlines existed that have accumulations of oil and gas in Mississippian, or older rocks? Not necessarily. Oil and gas may have accumulated in the Mississippian and older carbonates before and after Sevier tectonics but didn't continue to migrate upward into Navajo Sandstone reservoirs. No recent wells since the Covenant field discovery have been drilled to Mississippian carbonates in Schelling's study area. Furthermore, only three wells, the most recent drilled 35 years ago, encountered Mississippian-age rocks in the exploration arena. The structures containing these Mississippian carbonates were included as part of foreland-vergent detachments of the Pavant thrust system and were encountered further east than their original depositional position. Therefore, the stratigraphy and hydrocarbon potential of Mississippian age rocks in the primary CUTB area of interest, and elsewhere on trend, remain a big unknown. A number of very large anticlines beckon. Biography: Michael L. Pinnell serves as Exploration Manager and has been employed by Pioneer Oil & Gas from 1989 to the present. Mr. Pinnell is in charge of performing and supervising the geological and geophysical interpretation for Pioneer Oil & Gas's drilling prospects. Mr. Pinnell worked as a Consultant for various companies from 1985 to 1989 and performed geological and geophysical services. From 1981 to 1985 Mr. Pinnell was the Exploration Manager for Fortune Oil Company. Mr. Pinnell received a B.S. in Geology in 1970 and an M.S. in Geology from Brigham Young University. ****** LUNCHEON LOCATION ****** The July UGA luncheon meeting will be at 12:00 noon, Monday, July 13th, 2014, at the Utah Department of Natural Resources, 1594 West North Temple. Enter on south side. Please make your reservations no later than 4:00 p.m. on Thursday July 9th. Click to make reservations for the Luncheon Meeting by sending email to [email protected]. PLEASE NOTE: If after making a reservation you know you will be unable to attend, please notify the Treasurer no later than 9:30 a.m. on the day of the talk so that a walk-in may take your place. Otherwise, no-shows will be billed $10. Lunch at 12:00 noon. Meeting begins at 12:30. Cost: members $8.00 w/ reservations; non-members $12 with reservation; $5.00 for students. Cash, Checks, AND NOW MasterCard or Visa. Please Save the Date! Attention all UGA golfers, friends of UGA golfers, and supporters of the UGA... We have a reserved a tee time for our ANNUAL UGA/SPE/SME SCHOLARSHIP GOLF TOURNAMENT! Wingpointe Golf Course, 8:00am Friday, September 11, 2015, shotgun start as usual. Fun for all!! Terry Massoth UGA Golf Chair We Need a President! Your association needs you to step up and run for president. There seems to be a misconception that there is “someone else” who is more qualified or has more time than you – it’s not true! Sooner or later we all need to take a few turns serving our Association. The President slot it still open and time is growing short. We could use more candidates in the other positions too – please search your soul and see if you are ready to take your turn, then contact the election committee chair. Please note: We are trying hard to remove the conception that officers need to be from the SLC area; in reality you can easily fulfill all functions of most positions from anywhere in the state. Not being able to attend Monday luncheon meetings is NOT a good excuse to not run. Board meetings can be held evenings or you can participate via conference call or skype. Only the Program Chair and Treasurer need to be present at Monday luncheons. You just need to care about the UGA. Nominations are open until July 15. Candidates will be announced in the August newsletter. Elections will be in September and early October. New officers take over on November 1. All positions are a one-year term except President-elect, which is a three-year term. President-elect – A three-year commitment, the President-elect recommends to the Board the region or topic for the annual UGA publication and field conference and assigns editors to carry out the task. Note that the constitution does NOT require a formal publication and multi-day trip each year. Several of us think that it may be time for the UGA to scale back a bit – for example, simply run a one-day trip and only produce an informal road log some years (less time and expense, allowing more members to participate) – this would be your choice. As President you will guide management of the Association and run meetings. As PastPresident you will continue as a member of the Governing Board, offer sage advice to new officers, and chair the Nomination Committee. Program Chair – You will search out and arrange speakers for our regular monthly luncheon meetings, prepare newsletter announcements, coordinate the meeting venue, set up and run audio-visual equipment, and introduce speakers. Secretary – You will handle most correspondence for the Governing Board, record and file minutes of Board meetings, maintain the membership database, and publish the membership directory. Treasurer – You will oversee the Association’s financial resources, keep the accounts current, track income and expenses, and prepare a monthly financial report for the Governing Board. You will prepare and present an accurate end-of-year report (ends September 30) and present a summary of the Association’s financial status and health to the membership at the October Annual Meeting. You will provide records to a professional accountant and assure that annual taxes are properly prepared and filed. You, or a volunteer under your supervision, will arrange for catering of monthly meetings. To nominate yourself or a buddy, please contact Grant Willis before July 15 – [email protected] – 801-537-3355 Call for Nominations for the 2015 Lehi Hintze Award for Outstanding Contributions to the Geology of Utah This award was established in 2003 and first presented to Lehi F. Hintze in honor of his lifetime commitment to studying, mapping, writing and teaching about the geology of Utah. The eleven Lehi Hintze awardees since 2003 are listed in the 2014 UGA Membership Directory. The Lehi Hintze award is made annually to one person considered by the selection panel to be the most deserving candidate reflecting an outstanding contribution to the geology of Utah. This person can be from academia, government, the private sector, or the general public. The criteria for “Outstanding Contributions to the Geology of Utah” are intended to be interpreted broadly and to include all areas of the geosciences. Nomination Process The Utah Geological Association (UGA) and the Utah Geological Survey (UGS) jointly coordinate the nomination process. Nominations are called for each year, and will be reviewed by a selection panel in September. Nominations may be made by anyone, including non-UGA members, and should include the following: • • • a letter of nomination outlining the nominee's significant contributions, a curriculum vitae, a bibliography, and a minimum of two, but no more than four, supporting letters (at least one letter from a person not currently or recently associated with the nominee's employment). Nominations should be mailed to the following address before August 30, 2015: Director Utah Geological Survey PO Box 146100 Salt Lake City, UT 84114-6100 Registration Now Available! UGA Annual Field Trip Geology of the Uinta Basin and Eastern Uinta Mountains September 17–19, 2015 Field trip leaders: Doug Sprinkel and Mike Vanden Berg (Utah Geological Survey) Field trip coordinator: Robert Ressetar ([email protected]) This three-day trip will examine the structure, stratigraphy, and natural resources of the Uinta Basin and Uinta Mountains in northeastern Utah. Highlights will include: Geology of Nine Mile Canyon and Gate Canyon: Green River Formation lacustrine deposits Geology of the Evacuation Creek area, south of Bonanza: Upper Green River Formation, Enefit Mahogany box cut, exceptional microbialites, gilsonite veins, and the demise of Lake Uinta Uinta Mountains structural segmentation Neoproterozoic Uinta Mountain Group— stratigraphy and petroleum resources Fluvial reorganization during the transition from the Laramide orogeny to Tertiary extension Cenozoic conglomerates, downcutting, and mountain retreat Triassic‐Jurassic stratigraphy and regional correlations Please go to www.utahgeology.org to register. Space is limited, and registration will close August 29. The trip will begin and end in Salt Lake City; overnights will be in Vernal. The base cost is $290, which includes transportation, two nights lodging (double occupancy), three lunches, snacks & drinks, UGA Publication 44, and a field trip guidebook. Stop 1; Triassic-Jurassic Nugget Sandstone and Middle Jurassic Carmel Formation at Steinaker Reservoir State Park. Stop 3 (at left); The Red Fleet of Triassic and Jurassic strata near Red Fleet State Park. Stop 9 (at right); The Uinta fault in the Sheep Creek Canyon Geological Area placed Neoproterozoic formation of Hades Pass against Mississippian Madison (Deseret) Limestone. View of Flaming Gorge Reservoir with red Triassic strata that inspired J.W. Powell in 1869 to name the entrance into the Uinta Mountains along the Green River. Stop 11; View of Sheep Creek, which is floored in Triassic strata with the monoclinal Permian Park City on left and the shattered Nugget Sandstone on right. Free Books (list enlarged July 2015) UGA must reduce its storage space in the UGS Core Center. In addition, the DNR Bookstore has returned excess old publications that no longer sell well. For the last few months we have been giving out excess publications at our monthly meetings. We extend this offer to our members who cannot attend. You can pick the following books up at the next few luncheon meetings or by stopping by Grant Willis’s office at the Utah Geological Survey in the DNR Building in Salt Lake City. The DNR Bookstore will ship them for the cost of shipping and handling (typically $5 to $15 per book depending on book weight and your address)—call them direct at 801-537-3320 to pay and arrange shipment. Note: these free publications are only for UGA members’ personal use or for donation to schools; they are not to be resold (we don’t want to see them on e-bay a week later!). Offer only good while supplies last. UG Society-16 Geology of Bingham Mining District, 1961 UGA-1 Environmental Geology Tour of the Wasatch Front, road logs, edited by L.S. Hilpert, 1971. UGA-7 Guidebook to Mineral Deposits of Southwestern Utah, edited by D.R. Shawe, International Association on the Genesis of Ore Deposits Meeting, Field Excursion C-2, 1978, 75 p. RMAG/UGA Basin and Range Symposium and Great Basin Field Conference, edited by G.W. Newman and H.D. Goode, 1979, 662 p. (co-produced with Rocky Mountain Association of Geologists). UGA-10 Overthrust Belt of Utah, Symposium and Field Conference, edited by D.L. Nielson, 1982, 335 p. UGA-14 Orogenic Patterns and Stratigraphy of North-Central Utah and Southeastern Idaho, edited by G.J. Kerns and R.L. Kerns, Jr., 1985, 329 p. UGA-17 Geology and Hydrology of Hazardous-Waste, Mining-Waste, Waste-Water, and Repository Sites in Utah UGA-18 Energy and Mineral Resources of Utah, edited by M.L. Allison UGA-20 Hydrocarbon and Mineral Resources of the Uinta Basin, Utah and Colorado, edited by T.D. Fouch, V.F. Nuccio, and T.C. Chidsey, Jr., 1992, 366 p., UGA-22 Oil and Gas Fields of Utah (parts 1 and 2), edited by B.G. Hill and S.R. Bereskin, 1993, 192 p. [specify if you want binder or just 3-ring sheet packets], 1991, 222 p. UGA-23 Cenozoic Geology and Geothermal Systems of Southwestern Utah, edited by R.E. Blackett and J.N. Moore, 1994, 213 p. UGA-26 Modern and Ancient Lakes: New Problems and Perspectives, edited by J.K. Pitman and A.R. Carroll, 1998, 328 p. UGA-31 Ground Water in Utah, Resource, Protection, Remediation, edited by L.E. Spangler, 2004, 261 p. Association for Women Geoscientists - Salt Lake Chapter invites you to The Annual Summer Social Saturday August 1, 2015 from 5-9 PM 6413 S Rodeo Lane, Murray, Utah Main course provided by the chapter. Bring a side dish and beverages to share. Families welcome! HELP WANTED Geotechnical/CMT Professional Engineer Environmental Compliance Services, Inc. (ECS) is seeking a Professional Engineer to work out of our Salt Lake City, Utah office on geotechnical and construction materials testing projects. This position is a great opportunity to work locally, and assist the company with nationwide projects. Qualifications: 10+ years of experience in oversight and management, of geotechnical and construction materials testing projects, and staff supervision Environmental experience is a plus but not a requirement An excellent understanding of the construction industry is a must Excellent communication and writing skills Capability of multi-tasking and handling multiple projects in various states A valid driver's license in good standing Responsibilities: Manage every aspect (for example, scheduling, invoice & budget tracking, report preparation/review, etc. of geotechnical and construction materials testing projects) Prepare Proposals and Scopes of Work Travel will be required locally to meet with customers and potential clients to help build a regional presence, and assist with national coverage Pre-Employment Requirements: Upon offer of employment, the selected candidate will be required to successfully pass the following pre-employment requirements: drug screen, physical, criminal and driver's history background check About ECS: ECS is a growing, full-service environmental consulting company of approximately 250 professionals with offices throughout New England, the Southeast, and the Midwest. We offer a great work environment and excellent benefits including: Employee Stock Ownership Plan (ESOP), Competitive Salary, Health & Dental Insurance, and Short Term and Long Term Disability Insurance UGA’s Earthquake Safety Website Ready for Member Comment For the next 30 days, the website will be open for member comment before it is launched to the public. You can view it at: utahearthquakesafety.wordpress.com Once the comment period is over, it will be launched at our primary website at utahearthquakesafety.org. Please email comments and suggestions (hopefully constructive) to [email protected]. NEED HELP: You will quickly see that the website is graphics‐poor. We could use someone who has some creative talent and software skills to help with figures and photographs. Also, we could use more committee members. Please contact Grant if you are interested. Kathmandu, Nepal, April 25, 2015, M7.8 on thrust fault. Yes, Utah has many unreinforced masonry buildings not much different than these. Photo from Flickr Commons, SIM for SE Asia. UGA VOLUNTEERS UGA Board (unless otherwise indicated, area code is 801) 2015 President 2015 President-Elect 2015 Program Chair 2015 Treasurer 2015 Secretary 2014 Past-President April Abate, [email protected] Jason Blake, [email protected] Mark Milligan, [email protected] Rebekah Stimpson, [email protected] Jan Morse, [email protected] Grant Willis, [email protected] Education/Scholarship Environmental Affairs Geologic Road Sign Historian Membership Public Education Matt Affolter [email protected] Craig Eaton, [email protected] Terry Massoth, [email protected] Paul Anderson, [email protected] Rick Ford, [email protected] Paul Jewell [email protected] Sandy Eldredge, [email protected] Roger Bon, [email protected] Paul Inkenbrandt, [email protected] Greg Nielsen [email protected] Roger Bon, [email protected] 538-5214 435-658-3423 537-3326 537-3378 538-5327 537-3355 UGA Committees Publications Publicity Recruitment/Outreach Social/Recreation 633-9396 541-6258 364-6613 626-6942 581-6636 537-3325 942-0533 537-3361 626-6394 942-0533 AAPG House of Delegates Craig Morgan [email protected] 537-3370 State Mapping Advisory Committee Terry Massoth, [email protected] 541-6258 Earthquake Safety Committee Chair Grant Willis, [email protected] 537-3355 UGA Web Site http://www.utahgeology.org Webmasters Paul Inkenbrandt [email protected] Lance Weaver [email protected] Newsletter Editor Bob Biek [email protected] 537-3361 537-3346 UGA Newsletter 537-3356 2015 UGA Guidebook Editors Mike Vanden Berg [email protected] Robert Ressetar [email protected] Lauren Birgenheier [email protected] 537-5419 949-3312 585-3966 2016 UGA Guidebook Editors John Comer [email protected] Mike Pinnell [email protected] Paul Inkenbrandt [email protected] 812-320-3428 557-9114 537-3361