The Anadarko Basin: Oil and Gas Exploration Past, Present and Future John Mitchell, Senior Geologist SM Energy Co. Tulsa, Oklahoma March 2012 Email: jmitchellsm-energy.com
Located in western Oklahoma, southeastern Colorado, western Kansas and the northeastern portion of the Texas Panhandle Approximately 70,000 square miles in size Sedimentary column approaches 40,000 feet in thickness in deepest…
Bounded tectonically on the southern and eastern sides by major fault zones and/or uplifts Four major horizontal drilling plays in progress in oil and gas bearing horizons in (1) the Cleveland Ss., (2) the Granite Wash of…
Regional Structure Map Structure Map: Datum top of the Arbuckle Group (Cambro- Ordovician). Contour Interval = 1000 feet or 5000 feet in deeper part of basin. Basin reaches maximum depths in Beckham, Washita and Caddo Cos., OK…
Giant (100 MMBO) Oil Fields Map Anadarko Basin Postle Ringwood Sooner Trend West Edmond Panhandle Oklahoma City Watonga-Chickasha Apache Golden Trend Cement Rascoe & Hyne, 1988
Significant (1,000 BCF) Gas Fields Map Hugoton- Panhandle Mocane-Laverne Panoma Putnam Hansford Sooner Trend Strong City Hemphill Buffalo Wallow Hugoton- Panhandle Watonga-Chickasha Elk City Eakley-Weatherford…
Distribution of Gas Production by Reservoir Age 123.5 TCF Total Gas in IHS Production Data Files for Anadarko Basin of Oklahoma, Texas Panhandle, Western Kansas and Southeastern Colorado 0.14 Geologic System or Series 3.2 1.7…
Distribution of Gas Production by Reservoir Age 123.5 TCF Total Gas in IHS Production Data Files for Anadarko Basin of Oklahoma, Texas Panhandle, Western Kansas and Southeastern Colorado Geologic System or Series 0% 1% 3% PERMIAN…
Distribution of Oil Production by Reservoir Age 5,694 MMBO Total Oil in IHS Production Data Files for Anadarko Basin of Oklahoma, Texas Panhandle, Western Kansas and Southeastern Colorado
Distribution of Oil Production by Reservoir Age 5,694 MMBO Total Oil in IHS Production Data Files for Anadarko Basin of Oklahoma, Texas Panhandle, Western Kansas and Southeastern Colorado Geologic System or Series PERMIAN 4% 15%…
Distribution of Horizontal Well Completions by Reservoir Age Cleveland Ss. Granite 1400 Wash 1280 1200 1026 1000 836 800 600 372 357 400 200 133 91 78 42 12 10 0
Distribution of Horizontal Well Completions by Reservoir Age Cleveland 35% Ss. 30% Granite 30% Wash 24% 25% 20% 20% 15% 10% 9% 8% 5% 3% 2% 2% 1% 0% 0% 0%
Gas chromatogram plots of representative oil samples, Anadarko Basin, showing three distinctive crude oil types. A definitive source unit for the Type 1 oil produced from Ordovician reservoirs has not been well identified. Type 2 oil from…
SOURCE ROCK UNITS WOODFORD FM. 10% T9N R6W SEC 31 BATTIEST 1-31 GRADY CO., OK Sycamore Ls. (Mississippian) Density Woodford Fm. 100 Feet (U. Devonian) Neutron Hunton Gp. (Siluro-Devonian)
SOURCE ROCK UNITS MISSOURIAN SHALES The thin radioactive shales in the Missourian section have 2-6% TOC (SM Energy data) in Beckham Co., Oklahoma and are well into the oil window.
SOURCE ROCK UNITS HOGSHOOTER FM. SM ENERGY 1-26H BECK SEC. 26, T11N R23W, BECKHAM COUNTY, OK 114 Feet Hogshooter Fm. (M. Pennsylvanian) The thin radioactive shales in the Missourian section have 2-6% TOC (SM Energy data) and…
Regional Isopach, Production and Horizontal Activity Maps by Geologic System or Series
Regional Stratigraphic Column: Lower Paleozoic A total of 6.5 TCF of gas (5% of Mid- Continent total) has been produced from the Siluro-Devonian and Cambro-Ordovician reservoirs. Total oil production of 1,029 MMBO (19%) has come from…
Regional Isopach-Simpson Gp. (M. Ordovician) Although the Simpson Group sandstones (Bromide, McLish and Oil Creek are prolific oil producers in central Oklahoma, the high porosity and conventional nature of the reservoirs have…
Regional Isopach-Viola Group Widespread oil production has been obtained from thick (100 ft) low porosity limestone in the Viola Group in the southeastern portion of the basin. Production is from mainly fractured reservoirs and is…
Regional Isopach-Hunton Gp. (Siluro-Devonian) The Hunton Group is truncated by pre-Woodford and pre- Pennsylvanian erosion surfaces on the north, west and east sides of the basin. Porous dolomite reservoirs in the Frisco, Bois dArc…
Regional Isopach-Hunton Gp. & Horizontal Wells Only seventy-eight horizontals have West Edmond Field: tested the Hunton in the Anadarko 150 MMBO from Basin. Hunton in major stratigraphic trap Map adapted from Adler & others, 1971;…
Regional Stratigraphic Column: Upper Devonian & Lower/Middle Mississippian Only 3.3 TCF of gas (3% of Mid-Continent total) has been produced from the Middle Mississipian through Upper Devonian reservoirs. Total oil production of 351…
Regional Isopach-Woodford Fm. (U. Devonian) Map adapted from Adler & others, 1971; The organic rich siliceous shales Amsden, 1975; Cardott, 1988 in the Woodford Fm. are well developed in the southeastern portion of the basin. The…
Regional Isopach-Woodford Fm. & Producing Wells Map adapted from Adler & others, 1971; In Canadian and Dewey Amsden, 1975; Cardott, 1988 Counties, Oklahoma over three hundred and fifty horizontal completions have been made in the…
Regional Isopach-Mississippian(Pre-Chesteran) Widespread oil accumulations are present in low porosity limestones across multiple counties in Oklahoma and Kansas. This is north of and updip to the Mississippian oil and gas…
Regional Isopach-Mississippian & Producing Wells In the northeastern portion of the basin there is an active oil horizontal drilling play targeting siliceous limestones in the lower and middle Mississippian strata. Operators are…
Regional Stratigraphic Column: Upper Mississippian & Lower Pennsylvanian 35.4 TCF of gas (29% of Mid-Continent total) has been produced from the Atokan through Chesteran series of the Upper Mississippian and Lower Pennsylvanian.…
Regional Isopach-Chesteran & Springer Series The late Mississippian Chesteran and Springeran series sandstones and limestones were deposited along the eastern portion of the basin prior to the initiation of profound structural…
Regional Isopach-Morrowan Series The sandstones of the Morrowan series form some of the best oil and gas reservoirs in the basin. Morrowan rocks have produced 25 TCF (21%) of the natural gas and 908 MMBO (17%) of the oil in the…
Morrowan Series-Deposition (A) Upper Morrow Map adapted from Adler & others, 1971; Three distinctive play types are Fluvio-Deltaic Swanson, 1979 Sandstone Play present along the length of the Morrow fairway. They are (A) the Upper…
Regional Stratigraphic Column: Middle/Upper Pennsylvanian 23.7 TCF of gas (19% of Mid-Continent total) has been produced from the Virgilian through Desmoinesian series of the Pennsylvanian. Total oil production of 1,416 MMBO (26%)…
Regional Isopach-Desmoinesian Series Desmoinesian series reservoirs are the most widespread oil and gas producing horizons in the Mid-Continent. Prolific oil and gas production has been obtained from sandstones such as the Red…
Desmoinesian Series-Red Fork and Deese Ss. The Red Fork Ss. unit of the Middle Pennsylvanian has been a prolific oil and gas producing horizon across the state. Two notable depositional features are shown here: (A) is the northern…
Desmoinesian Series-Granite Wash Over seven-hundred (700) horizontal Granite Wash wells have been completed along a one-hundred and twenty mile (120) long play area lying along the basin axis from Washita County, Oklahoma…
Regional Isopach-Desmoinesian Series Over seven-hundred horizontal Granite Wash wells have been completed along a one- hundred and twenty mile (120) long play area lying along the basin axis from Washita County, Oklahoma…
Type Log: 1,500 feet of Desmoinesian Wash, Deep Anadarko Basin, Texas & Oklahoma; Devon 16-4 Truman- Zybach, Sec. 16, Block R&E Survey, Wheeler Co., Texas
1,206 Horizontal Granite Wash Wells Spud Through September 2011
Regional Deposition-Missourian Series Thousands of oil and gas wells have been completed in the Cleveland sandstone along a ninety mile (90) long play area from Ochiltree County, Texas eastward to Ellis County, Oklahoma. The…
Missourian Series-Horizontal Drilling One thousand and sixty-five horizontal (1,065) oil and gas wells have been completed in Ochiltree and Lipscomb Counties, Texas eastward to Ellis County, Oklahoma. This area is the most active…
Missourian Series-Horizontal Drilling New high volume oil wells from Hogshooter and Cottage Grove Washes MISSOURIAN WASH Map adapted from Adler & others, 1971 HORIZONTALS
Type Log Missourian Wash, Deep Anadarko Basin, Texas & Oklahoma; Chesapeake 1-28 Mary K well, Sec. 28, T11N R23W, Beckham Co., Oklahoma
Horizontal Granite Wash Play Missourian Wash Activity Areas Cottage Grove Wash Mills Ranch Field Twelve Miles
Cum. Production Vertical Wells: 750,000 BO / 19 Wells Calculated 130 MMBO of Original Oil in Place One Mile Porosity isolith map of the Upper Cottage Grove Wash with density porosity 10% on 2.71 gm/cc matrix; Contour interval =…
Upper Cottage Grove Wash Type porosity log, Upper Cottage Grove Wash pay zone, SM Energy 2-60H 10% Ruth pilot hole; NW NW NW Sec. 60, Block A-7, PHIN Stiles Ranch field, Wheeler Co., TX; porosity PHID on lime matrix 50 FT…
Chesapeake 7-59H Bass Horizontal Cottage Grove Wash Completed: March 2011 IPF: 996 BOPD; 1,126 MCFGD Sanguine 4-21H Ledbetter Horizontal Cottage Grove Wash Completed: March 2011 IPF: 1,011 BOPD; 1,000 MCFGD SM Energy 4-60H…
Horizontal Granite Wash North Canute to Elk City Area Twelve Miles Hogshooter Wash (Missourian)
Horizontal Granite Wash - North Canute Area Structure map of the 1st Hogshooter shale; Contour interval = 100 feet ; Canute field, T11N R20W, Washita Co., OK; star indicates location of type log well
Upper Hogshooter Wash Type porosity log, Hogshooter Wash pay zone, Apache 1-5H McRee pilot hole; NW NW NE Sec. 5, T11N R20W, Canute field, 1st Hogshooter Sh. Washita Co., OK; porosity on lime matrix; porosity Lower Hogshooter Wash…
Horizontal Granite Wash - North Canute Area Chesapeake 1-6H McConnell Apache 1-32H McRee Horizontal Hogshooter Horizontal Hogshooter Completed: March 2011 Completed: February 2011 IPF: 544 BOPD, 843 MCFGD, 272 BWPD IPF: 729 BOPD, 1,547…
Regional Stratigraphic Column: Permian At least 54.6 TCF of gas (44% of Anadarko Basin total) has been produced from the Wolfcampian (Lower Permian) carbonates and sandstones at shallow depths in the Hugoton-Panhandle field and…
Conclusions Four major horizontal drilling plays in progress in oil and gas bearing horizons in the Cleveland Ss. and Granite Wash of Pennsylvanian age, the Mississippian limestones, and the Upper Devonian Woodford Shale Over four…
Petroleum Geology of the Mid-Continent, Tulsa Geological Society Special Publication 3, 1988 Future Petroleum Provinces of the Mid-Continent, AAPG Memoir 15, V. 2, 1971 Atlas of Major Midcontinent Gas Reservoirs, Gas Research…
Thanks Many thanks to Carol Mitchell, my patient spouse and partner for thirty-six years. Also to Will Downs, Exploration Manager with SM Energy, Tulsa for permission and support in making this presentation.
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