WGA-SPE Abbrevated Presentation_1-30-2015
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Transcript of WGA-SPE Abbrevated Presentation_1-30-2015
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Applications in Geochemistry, Geophysics and Petrophysics for the
Exploration and Production of the Niobrara Formation in the Powder River
Basin and Adjacent Areas
Cal Reppe and Vanja M. StevanovicYates Petroleum Corporation
WGA/SPE January 30, 2015
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Acknowledgements
Applications in Geochemistry, Geophysics and Petrophysics for the Exploration and
Production of the Niobrara Formation in the Powder River Basin and Adjacent Areas
Yates Petroleum Corporation Ballard Petroleum Holdings, LLC TGS Schlumberger/Terra Tek Seitel NuTech Chemostrat Sirius Weatherford
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Outline Well Data, DST’s, Cores, Published
Reports/Articles, Databases Reservoir Analysis, Depositional
Models & Sequence Stratigraphy Structural & Geophysical
Evaluations Modern Logging Applications Temperature Modeling, API
Gravities, Gas-Oil Ratios (GOR)
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Outline (continued) Organic & Inorganic Geochemical
Analysis Timing and Migration of
Hydrocarbons Identification of Sweet Spots Environmental Issues &
Infrastructure South Dakota Exploration Play
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(Wood MacKenzie, 2006)
Regional Map
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Well Data, DST’s, Cores, Published Reports/Articles, Databases
Reservoir Analysis & Depositional Models
Structural & Geophysical Evaluations Modern Logging Applications Temperature Modeling, API Gravities,
Gas-Oil Ratios (GOR) Organic & Inorganic Geochemical
Analysis Timing and Migration of Hydrocarbons Identification of Sweet Spots Environmental Issues & Infrastructure South Dakota Exploration Play
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Niobrara FormationMowry Shale
Phosphoria Formation
Powder River Basin Source Rocks
Stratigraphic Column
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Upper Cretaceous Seaway
(Interpretation by Ron Blakey)
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Geologic Assessment of Undiscovered Oil and Gas in the Powder River Basin Province, Wyoming and Montana: U.S. Geological Survey Digital Data Series DDS-69-U
Stratigraphic Column
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Niobrara Formation Characteristics
Structural Deformation Episodes & Sweet Spots
Maturation and Total Organic Carbon % Chalk and Clastic Benches Reservoir
Characteristics Fractures associated with Structural Normal
and Listric Normal Faulting, i.e. Horsts and Grabens, and Salt Dissolution/Collapse
Regional East to West and North to South Niobrara Lithologic Correlations
Mapping Lithologic Trends with Gamma Ray, Compensated Neutron Porosity,& Resistivity
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Schlumberger Intera – Cretaceous Niobrara Formation Study,1992
Kauffman, 1977
Overview Niobrara FmDepositional Trends
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SchlumbergerIntera – Cretaceous Niobrara Formation Study,1992
NIOBRARA
NIOBRARA
B BENCH
CARLILE CARLILE
B BENCH
20 OHM Cutoff
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Niobrara
Carlile
Frontier 1
B Bench
NW
SE
Northwest to Southeast Niobrara Structural Cross Section
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Overview Niobrara Formation
SchlumbergerIntera – Cretaceous Niobrara
Formation Study, 1992
Niobrara Formation Isopach
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Tight Oil DST Cores
Tennessee Gas#1 USA Helen V. SmithSec. 8-T47N-R69WAPI 4900505091
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Well Data, DST’s, Cores, Published Reports/Articles, Databases
Reservoir Analysis & Depositional Models
Structural & Geophysical Evaluations
Modern Logging Applications Temperature Modeling, API Gravities,
Gas-Oil Ratios (GOR) Organic & Inorganic Geochemical
Analysis Timing and Migration of Hydrocarbons Identification of Sweet Spots Environmental Issues & Infrastructure South Dakota Exploration Play
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Geologic Assessment of Undiscovered Oil and Gas in the Powder River Basin Province, Wyoming and Montana; U.S. Geological Survey Digital Data Series DDS-69-U
Powder River BasinMowry Shale Structure MapContour Interval: 2,000 feet
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SchlumbergerIntera – Cretaceous Niobrara Formation
Study, 1992
Bell Creek
Little Misso
uri
Springen ranch
Rozet
South Coyote Creek
Gose Butte
Fiddler Creek
Clareton Trend
Slack, 1981
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Modern Logging Applications• Triple or Quad Combo – Resistivity, Neutron-
Density, Acoustic, and/or Cross-Dipole XMAC• Nuclear Magnetic Resonance• Dipmeter• Formation Micro Imager (FMI)
Logging suites can be incorporated with cores and geochemistry which will assist with the interpretations of structure, fractures, sequence stratigraphy, and depositional models.
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Well Data, DST’s, Cores, Published Reports/Articles, Databases
Reservoir Analysis & Depositional Models
Structural & Geophysical Evaluations Modern Logging Applications Temperature Modeling, API
Gravities, Gas-Oil Ratios (GOR) Organic & Inorganic Geochemical
Analysis Timing and Migration of Hydrocarbons Identification of Sweet Spots Environmental Issues & Infrastructure South Dakota Exploration Play
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Niobrara Oil API (gravity’s)Geologic Assessment of Undiscovered Oil and Gas in the Powder River Basin Province, Wyoming and Montana
U.S. Geological Survey Digital Data Series DDS-69-U
Niobrara Gas Oil Ratios (GOR’s)
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BHT 160 to 199 Degrees Fahrenheit
BHT 200 to 230 Degrees Fahrenheit
BHT >231 Degrees Fahrenheit
Borehole Temperatures (BHT)Note: These temperatures are not calibrated or normalized to the actual BHT . The BHT are taken from the well log header.
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Well Data, DST’s, Cores, Published Reports/Articles, Databases
Reservoir Analysis & Depositional Models Structural & Geophysical Evaluations Modern Logging Applications Temperature Modeling, API Gravities, Gas-
Oil Ratios (GOR) Organic & Inorganic Geochemical
Analysis Timing and Migration of Hydrocarbons Identification of Sweet Spots Environmental Issues & Infrastructure South Dakota Exploration Play
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XRD Analysis
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Van Krevelen Diagram showing the primary composition of the different types of kerogen and the changes as a function of heating (maturation) during progressive burial (from Bjorlykke, 2010)
S1 = @ 3000C measure the oil and gas that has already been generated in the source rockS2 = @ 400-4600C represents the amount of HC generated from the kerogen in the sampleS3 = from C. 300-5500C CO2 is generated, collected and measured (from Bjorlykke, 2010)
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SchlumbergerIntera – Cretaceous Niobrara Formation
Study,1992
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Well Data, DST’s, Cores, Published Reports/Articles, Databases
Reservoir Analysis & Depositional Models Structural & Geophysical Evaluations Modern Logging Applications Temperature Modeling, API Gravities, Gas-
Oil Ratios (GOR) Organic & Inorganic Geochemical Analysis Timing and Migration of Hydrocarbons Identification of Sweet Spots Environmental Issues & Infrastructure South Dakota Exploration Play
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Timing and Migration of Hydrocarbons Identification of Sweet Spots
Geologic Assessment of Undiscovered Oil and Gas in the Powder River Basin Province, Wyoming and MontanaU.S. Geological Survey Digital Data Series DDS-69-U
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Environmental and Infrastructure Considerations
Environmental and Infrastructure issues need to be addressed. If your evaluations indicate hydrocarbon potential but the environmental and infrastructure indicate you wouldn’t be able to drill and/or produce the hydrocarbons. Than….it’s not a drillable prospect……at this time.
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Well Data, DST’s, Cores, Published Reports/Articles, Databases
Reservoir Analysis & Depositional Models Structural & Geophysical Evaluations Modern Logging Applications Temperature Modeling, API Gravities, Gas-
Oil Ratios (GOR) Organic & Inorganic Geochemical Analysis Timing and Migration of Hydrocarbons Identification of Sweet Spots Environmental Issues & Infrastructure South Dakota Exploration Play
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South Dakota Exploration Play
Potential oil Migration pathways
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SchlumbergerIntera – Cretaceous Niobrara Formation
Study,1992Contour Interval = 10 0C
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A Geology of South Dakota, Part 1, The Surface, E. P. Rothrock, 1943
Gas Shows Oil Shows
Oil and Gas shows were taken SDGS, Circular 41, 1970 and SDGS Open File Report 2-BAS, 1981
Colorado Lineament
Oil and Gas shows were associated with water production during production tests and drill stem tests (DSTs). As a result, a strong hydrodynamic influence is present. Therefore, hydrodynamic stratigraphic and structure traps will need to be considered.
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Preliminary PreCambrian Structure Map, 1961
Colorado Lineament
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Closing StatementAs geologists, we have to incorporate existing & new
data from geology, geochemistry, and geophysics into our exploration & production reservoir characterization & analysis.
This is only part of our industry’s strategy in developing resource plays. The reservoir characterization needs to be incorporated into the Completion Engineers development of a completion model/strategy. This completion program needs to be optimized to provide the best Rate of Return/Investment (ROR/ROI) and/or the best Net Present Value (NPV). In order to achieve this, the geologist and engineers must work together as a TEAM.
Quoting Mike Vincent: “Neither the Geologists or Completion Engineers should fall into the trap of becoming Xerox Geologists or Engineers. If we do, we should be indicted for Geology and/or Engineering Malpractice”.
As professionals, we need to plan for success.