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Minnelusa Field Development Using 3D Seismic Data Powder River Basin, Wyoming Presentation to: Enhanced Oil Recovery Institute Minnelusa Field Trip & Workshop June 2-5, 2014 John Frederick Red Leaf Energy
Transcript of Minnelusa Field Development Using 3D Seismic Data Powder ... presentations/frederick...
Minnelusa Field Development Using 3D Seismic Data
Powder River Basin, Wyoming
Presentation to: Enhanced Oil Recovery Institute
Minnelusa Field Trip & Workshop June 2-5, 2014
John Frederick
Red Leaf Energy
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 2
Benefits of Seismic in Field Development
What additional information does seismic bring to field development strategy?
1. Increased spatial (lateral) and temporal (vertical) resolution of reservoir mapping
• Area, thickness, rock volume
2. Estimation of reservoir rock properties 3. Seismic attribute correlation to well performance 4. Operational design of secondary recovery
• Injector placement • Off-take placement
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 3
This presentation addresses the benefit of increased spatial (lateral) and temporal (vertical) resolution using three-dimensional (3D) seismic data in Minnelusa field development.
A case history of Donkey Creek North Minnelusa Oil Field,
T50N-R68W, Crook County, Wyoming demonstrates that acquiring high quality 3D seismic data directly benefits strategic placement of well bores to increase oil production in both primary and secondary recovery programs.
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 4
Minnelusa Type Log
~ 30
0 fe
et
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 5
Minnelusa Trapping Styles
Frederick - 1995
Most Minnelusa accumulations are a combination of structural and stratigraphic trapping configurations. •Opeche shale truncation of upper most sandstone
•Geomorphology – eolian sandstone deposition
•Lateral diagenetic facies changes
•Structural relief
~ 30
0 fe
et
V.E. 20:1 Regional dip rate: 1-2 degrees
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 6
Critical Issues to Successfully Finding and Developing Minnelusa Oil Accumulations
• Defining trapping configuration – Traps not filled to spill point – Opeche shale, geomorphic, or diagenetic
• Proper identification of seismic amplitude anomalies – Thick Opeche shale (trap) vs. porous sand (reservoir) – Which sand – A, Upper B, B, intra-B, or C?
• Local structural regime – 4-way (Timber Creek) – Sand diagenesis on structural nose – Faulted (not common)
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 7
What attribute does 3D seismic data need to possess to best determine sand body vertical and horizontal extents?
Bandwidth Bandwidth
Bandwidth or put another way….
High Frequency High Frequency
High Frequency
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 8
Seismic differentiation of sands and opeche siltstone
Frederick, 1991 Frederick, 1991
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 9
Synthetic Seismic Model Based Upon Well Control
Typical Seismic Frequency Bandwidth – 12-18-60-70 Hertz
Frederick, 1991
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 10
Frederick, 1991
Synthetic Seismic Model of From Well Control
High Seismic Frequency Bandwidth – 12-18-90-110 Hertz
Frederick, 1991
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 11
Synthetic Seismic Bandwidth Comparison
12-18-60-70 HZ
12-18-90-110 HZ
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 12
Seismic differentiation of sands and opeche siltstone
Frederick, 1991 Frederick, 1991
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 13
Seismic Data - Bandwidth Comparison Industry average vs. high frequency acquisition
Frederick, 1991
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 14
Donkey Creek North Minnelusa Upper B Sand Field
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 15
Adjacent Minnelusa Oil Production
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 16
Upper B and (Lower) B Sand Trends
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 17
Minnelusa Formation Trapping Styles
Donkey Creek North Trap
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 18
Donkey Creek North - Upper B Sand Reservoir Interpretation, circa 1982
Presenter
Presentation Notes
Add production, discovery well date
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 19
Donkey Creek North– Upper B Sand Reservoir Pre - 3D Seismic Interpretation 1992
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 20
Results of Donkey Creek North 3D Seismic Survey
Pre 3D seismic interpretation based on subsurface well control
Post 3D seismic interpretation - sand does not extend eastward, but actually extends northward and wraps around dry hole
No eastward extent of
Upper B sand
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 21
West - East Seismic Traverse Upper B Sand to B Sand Transition
Upper B sand B sand
Depositional thinning of Upper B sand
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 22
West - East Geologic Cross Section Upper B Sand to B Sand Transition
Upper B sand depositional thinning against thick B sand body
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 23
Seismic Traverse Through Strong Amplitude Anomaly (Upper B Sand)
Upper B sand Untested – productive (?)
Upper B sand
South North
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 24
Post 3D Drilling Results Federal 34-18 and Federal 21-19
Upper B sand Post 3D seismic survey Upper B sand porosity encountered in both the 34-18 and 21-19. The 21-19 was converted to a
water injector
South North
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 25
Donkey Creek North – Upper B Sand Reservoir 3D Seismic Interpretation 1994
Combined seismic and subsurface well bore interpretation Upper B sand seismic trough amplitude
Presenter
Presentation Notes
�Compare this with previous maps. Make the point that based only on subsurface, the areal extent, and to some degree reservoir thickness can be overlooked.
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 26
Projected secondary recovery (1994) (pre-unitization)
Bar
rels
of o
il / m
onth
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 27
Field Production – Post 3D Development
Waterflood performance forecast - 1994
Field production through March 2014
Bar
rels
of o
il / m
onth
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 28
Summary
Spatial (lateral) and temporal (vertical) resolution provided
by the acquisition of high quality (broad bandwidth, high
frequency) three-dimensional (3D) seismic data in
combination with wellbore rock property and production
performance information contributes significantly to the
economic value of both primary and secondary oil
recovery in Minnelusa oil fields.
John Frederick - Red Leaf Energy Presentation to EORI Minnelusa II Workshop June 4, 2014 29
References
Frederick, J.B., 1991. The search for subtle stratigraphic traps with high resolution seismic data: examples from the Powder River Basin, NE Wyoming, USA. Exploration Geophysics, v. 22. Australian Society of Exploration Geophysicists – 1991 annual meeting presentation.
Frederick, J.B., Dean, K.T., Fryberger, S.G., Wilcox, T.D. 1995. Donkey Creek North
Minnelusa 3-D: Challenging Conventional Wisdom. RMAG High Definition Seismic Guidebook – 1995. RMAG-DGS 3-D seismic symposium presentation.
Fryberger, S.G. 1984. The Permian Upper Minnelusa formation, Wyoming: ancient
example of an offshore-prograding eolian sand sea with geomorphic facies, and system-boundary traps for petroleum, in Goolsby, J. and D. Morton, eds., the Permian and Pennsylvanian Geology of Wyoming, Thirty-fifth Annual Field Conf., 1984 Wyoming Geological Association Guidebook, p. 241-271.
