| Title | Petrophysical analysis of reservoir characterization for the Devonian-Mississippian lower middle Bakken member in the Viewfield pool, SE Saskatchewan |
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| Author | Hu, K ; Chen, Z; Yang, C |
| Source | GeoConvention 2015, Geoscience new horizons: technical program, poster session abstracts; Canadian Society of Petroleum Geologists, Canadian Society of Exploration Geophysicists, Joint Annual Meeting,
Abstracts 2015 p. 1-4  Open Access |
| Links | Online - En ligne
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| Year | 2015 |
| Alt Series | Earth Sciences Sector, Contribution Series 20140393 |
| Publisher | Canadian Society of Pretoleum Geologists |
| Meeting | CSPG GeoConvention 2015; Calgary; CA; May 4-8, 2015 |
| Document | serial |
| Lang. | English |
| Media | on-line; digital |
| Related | This publication is related to Petrophysical analysis of
reservoir characterization for the Devonian-Mississippian lower middle Bakken member in the Viewfield pool, SE Saskatchewan |
| File format | pdf |
| Province | Saskatchewan |
| NTS | 62E/09; 62E/10; 62E/15; 62E/16 |
| Area | Viewfield |
| Lat/Long WENS | -103.0000 -102.0000 50.0000 49.5000 |
| Subjects | stratigraphy; fossil fuels; wells; fracturing; lithology; reservoirs; cores; modelling; permeability; porosity; stratigraphic correlations; stratigraphic models; Viewfield Pool; Viewfield Bakken play;
Bakken Formation |
| Program | Geoscience for New Energy Supply (GNES) Shale-hosted petroleum ressource assessment |
| Released | 2015 01 01 |
| Abstract | The Viewfield Pool is located between TWP6-11 and R11W2- 6W2 in SE Saskatchewan. Over 2700 horizontal production wells with hydraulic fracturing have been drilled in the field with 174 new completions
in 2013 (Kohlruss, et al., 2013; Cronkwright, et al., 2014). The main drilling target is Unit A, the lowest unit of the Middle Bakken Member, which mainly consists of dolomitic fine grained sandstone, dolomitic siltstone, and calcareous siltstone,
with small amount of silty wackestone (Christopher, 1961; Kohlruss and Nickel, 2009; Angulo and Buatois, 2011; Staruiala et al., 2013). The Viewfield Bakken play has been described as a resource and/or unconventional play due to its extreme low
permeability (Kohlruss and Nickel, 2012). The reservoir evaluation, such as accurate determination of porosity and permeability, has been always challenging because of the complexity of lithology and reservoir heterogeneity.
This study is based
on conventional core analysis from about 40 wells and available advanced logging set (e.g. nuclear magnetic resonance - NMR logs) from three wells acquired in the Viewfield pool. By a thorough analysis of conventional core measurements and NMR logs,
we developed petrophysical models for unconventional reservoir porosity and permeability estimation using conventional well logs. Comparing computed porosity from well logs derived from the proposed approach with core porosity for the Unit A, the
density model gives the best match, density-sonic model provides fair to good result, and single sonic log model gives reasonable porosity estimates. The NMR-based permeability equation provides reasonable permeability estimation, which is comparable
with core measurements.
In this paper, we present the petrophysical models and demonstrate the method for porosity and permeability calculations from conventional logs through application examples of the Middle Bakken reservoir in the Viewfield
play. Correlations and distributions of basic petrophysical parameters are also discussed for the unconventional play in the Viewfield area. |
| Summary | (Plain Language Summary, not published)
This study is based on conventional core analysis from about 40 wells and available advanced logging sets from three wells acquired in the Viewfield
pool, Saskatchewan. By a thorough analysis of conventional core measurements and NMR logs, we developed and demonstrate new petrophysical models for unconventional reservoir porosity and permeability estimation. |
| GEOSCAN ID | 295734 |
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