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Cap Berea

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Journal Article
Journal: AAPG Bulletin
Published: 01 December 1984
AAPG Bulletin (1984) 68 (12): 1920.
..., is approximately equivalent to the “capBerea in the subsurface. The second unit, which lies below the “capBerea varies considerably in its thickness. The thickness of the Berea Sandstone (excluding the “cap”) ranges from zero to over 125 ft (38 m) in the study area. The thickness changes occur within very...
Journal Article
Journal: AAPG Bulletin
Published: 01 December 1984
AAPG Bulletin (1984) 68 (12): 1918.
... structural and stratigraphic settings. In Portage County, the Berea Sandstone is up to 60 ft (18 m) thick and has a porosity in the 15-25% range. The sand is white, medium to fine-grained quartz, poorly cemented, and without substantial shale interbeds. The reservoir lies below the “Cap Berea,” a gray...
Image
Types of bedding in the Berea Sandstone in outcrop near Garrison, Kentucky. (A) Thick Berea along Kentucky Highway 10 with laterally continuous, sheet-form bedding. (B) Typical bed with scour base, massive to faintly laminated bedding, and thin shale drape or thin-bedded siltstone cap. (C) Hummocky bedding capped by thin bed of convolute laminae. Note thin shale between beds. (D) Normal sheet-form bedding passing laterally into relatively contiguous small-scale, ball-and-pillow structures in several beds. White arrow points to yard stick (3 ft [0.9 m]) scale. (E) Giant flow roll separated from surrounding beds by deformed shale and siltstone. Arrow points to hammer for scale. (F) Large shale diapir between flow rolls. Yard stick (3 ft [0.9 m]) scale. (G) Multiple horizons of large flow rolls with multiple shale diapirs and disruption of overlying and underlying bedding. Person for scale.
Published: 15 March 2021
Figure 4. Types of bedding in the Berea Sandstone in outcrop near Garrison, Kentucky. (A) Thick Berea along Kentucky Highway 10 with laterally continuous, sheet-form bedding. (B) Typical bed with scour base, massive to faintly laminated bedding, and thin shale drape or thin-bedded siltstone cap
Image
—Griffithsville or Big Creek pool, Lincoln County, West Virginia, contoured on Berea sandstone. Contour interval, 20 feet. All contours below sea-level. After Ralph E. Davis and Eugene A. Stephenson, in Structure of Typical American Oil Fields, Vol. II (Amer. Assoc. Petrol. Geol., 1929), Fig. 1, p. 572. Oil and water have been backed downdip into synclinal troughs by large gas caps which fill anticlines and upper parts of synclines.
Published: 01 May 1954
Fig. 17. —Griffithsville or Big Creek pool, Lincoln County, West Virginia, contoured on Berea sandstone. Contour interval, 20 feet. All contours below sea-level. After Ralph E. Davis and Eugene A. Stephenson, in Structure of Typical American Oil Fields, Vol. II (Amer. Assoc. Petrol. Geol., 1929
Journal Article
Journal: AAPG Bulletin
Published: 01 July 1927
AAPG Bulletin (1927) 11 (7): 705–719.
... Virginia Geological Survey. The location was placed far enough down the structure to have a chance for oil, yet far enough up to have gas possibilities also. When the Berea cap was reached there was a dead oil scum and hard white sand, which made it appear as though the well would be dry. After drilling 10...
FIGURES | View All (5)
Series: Geological Society, London, Special Publications
Published: 21 October 2020
DOI: 10.1144/SP486-2019-33
EISBN: 9781786204868
... miles) west of the Amherst area quarries. The southern Ohio quarries were of more local importance. The Berea caps a generally upward-shallowing sequence of Upper Devonian/Lower Mississippian rocks. At the type area along and near the Rocky River in Berea and at many other outcrops, the underlying...
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Journal Article
Journal: The Leading Edge
Published: 01 December 2007
The Leading Edge (2007) 26 (12): 1576–1583.
... sample is considered to be the reservoir capped by a “typical” shale. This reservoir is assumed to have the upscaled Berea velocities and density as a function of fluid saturation. The velocities of the shale and Berea are used in the full Zoeppritz solution to produce amplitude versus offset curves...
FIGURES | View All (7)
Journal Article
Journal: AAPG Bulletin
Published: 01 October 1956
AAPG Bulletin (1956) 40 (10): 2517–2522.
... with the Second Berea sand bar in Ohio. It is well to point out that the placing of the “zero line” is subject to considerable interpretation. Naturally there are few wells drilled off of the productive trend. It is certain that, had the minimum thickness line been set at 2 feet or 5 feet, the outline would have...
Journal Article
Journal: The Leading Edge
Published: 01 May 2007
The Leading Edge (2007) 26 (5): 602–608.
... are separated by yield or failure surfaces ( Figure 1b ). For example, a tensile failure surface, shear failure surface (equivalent to the Mohr failure envelope), a pore collapse surface, and compaction surface. (Note that most engineering studies refer to a single “cap” for compaction yield surface...
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Journal Article
Journal: AAPG Bulletin
Published: 01 January 1969
AAPG Bulletin (1969) 53 (1): 127–135.
... Michigan. However, tongues of Bedford extending westward into the Ellsworth were observed at two localities. Both the Bedford-Berea sequence and the Ellsworth are capped by the black Sunbury Shale except in a few places where the Sunbury is absent and the Ellsworth is overlain by the red facies...
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Journal Article
Journal: AAPG Bulletin
Published: 15 March 2021
AAPG Bulletin (2021) 105 (3): 597–628.
...Figure 4. Types of bedding in the Berea Sandstone in outcrop near Garrison, Kentucky. (A) Thick Berea along Kentucky Highway 10 with laterally continuous, sheet-form bedding. (B) Typical bed with scour base, massive to faintly laminated bedding, and thin shale drape or thin-bedded siltstone cap...
FIGURES | View All (18)
Journal Article
Journal: GSA Bulletin
Published: 01 January 2010
GSA Bulletin (2010) 122 (1-2): 265–281.
... and Rockwell glacigenic succession of Pennsylvania and Maryland and the Bedford Shale and Berea Sandstone of Ohio. Figure 2. (A) Generalized paleogeography of the central Appalachian Basin during the latest Devonian Bedford-Berea interval (from Pepper et al., 1954 , plate 12). Extent of Spechty Kopf...
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Journal Article
Journal: Interpretation
Published: 20 March 2014
Interpretation (2014) 2 (2): SC47–SC60.
.... (2007a , 2007b) , we develop and assemble preliminary versions of each of the five major workflow components of Figure  1 and demonstrate the application of this workflow to the hypothetical AVO response of a bench-scale laboratory sample of Berea Sandstone. In this paper, we extend this work...
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Journal Article
Journal: The Leading Edge
Published: 01 June 2025
The Leading Edge (2025) 44 (6): 488–496.
... challenging for a shale cap or source rock. When not directly measured, K s generally is computed theoretically from mineralogy. Mineralogy is most often determined through X-ray diffraction in the laboratory and can also be approached through downhole field measurements with elemental tool data...
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Journal Article
Journal: Geophysics
Published: 31 May 2016
Geophysics (2016) 81 (4): E243–E257.
... and medium) and therefore two low values of surface conductivity. Portland sandstone, rich in illite and kaolinite, is characterized by a high surface conductivity, and the Berea sandstone is characterized by an intermediate surface conductivity. The Seebeck coefficient of the sands ranges from − 0.4...
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Journal Article
Journal: Geophysics
Published: 30 April 2020
Geophysics (2020) 85 (4): MR179–MR190.
... the plane-polarized light for (a) Idaho Gray sandstone with medium subangular grains and line grain-to-grain contacts, (b) Berea sandstone with fine-medium grains and dot-line grain-to-grain contacts, and (c) Tight sandstone with asperities and line-bump grain contacts. The samples are cut...
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Journal Article
Journal: AAPG Bulletin
Published: 01 May 1995
AAPG Bulletin (1995) 79 (5): 696–710.
... to a reservoir. We use numerical simulations and experiments to show that percolation theory, when applied to the process of oil invading a pore space, leads to the conclusion that field-scale saturations in secondary migration can be on the order of 1% or less. Our capillary invasion experiments on Berea...
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Journal Article
Journal: AAPG Bulletin
Published: 01 April 1941
AAPG Bulletin (1941) 25 (4): 713–723.
... the oolites are absent the zone is brown crystalline dolomite which in many places produces gas. Stratigraphically this zone is at the horizon of the Berea sandstone of the Michigan basin but lithologically it is dolomite containing grains of rounded frosted sand. The green shales of the Ellsworth grade...
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Journal Article
Journal: Geophysics
Published: 19 January 2010
Geophysics (2010) 75 (1): N9–N18.
... compressibility equals grain compressibility is still commonly made. We measured hydrostatic poroelastic constants of Berea sandstone and Indiana limestone under drained, undrained, and unjacketed conditions over a range of confining and pore pressures to test the assumption that pore compressibility equals grain...
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Journal Article
Journal: Geophysics
Published: 23 May 2005
Geophysics (2005) 70 (3): O1–O11.
... anisotropic reservoir model is based on the rock physics measurements on Berea sandstone published by Carcione and Cavallini (2002) . We have investigated how TIV anisotropy changes the reflection coefficient at the interface between a cap rock and a reservoir rock. Both cap rock and reservoir rock...
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