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Subsurface stratigraphy and characte...

Wittman, Brett Robert.

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Subsurface stratigraphy and characterization of Mississippian (Osagean to Meramecian) carbonate reservoirs of the northern Anadarko Shelf, north-central Oklahoma.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Subsurface stratigraphy and characterization of Mississippian (Osagean to Meramecian) carbonate reservoirs of the northern Anadarko Shelf, north-central Oklahoma./
作者:	Wittman, Brett Robert.
面頁冊數:	88 p.
附註:	Source: Masters Abstracts International, Volume: 51-05.
Contained By:	Masters Abstracts International51-05(E).
標題:	Petroleum geology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1536311
ISBN:	9781303044625

Subsurface stratigraphy and characterization of Mississippian (Osagean to Meramecian) carbonate reservoirs of the northern Anadarko Shelf, north-central Oklahoma.
Wittman, Brett Robert.

Subsurface stratigraphy and characterization of Mississippian (Osagean to Meramecian) carbonate reservoirs of the northern Anadarko Shelf, north-central Oklahoma. - 88 p.

Source: Masters Abstracts International, Volume: 51-05.

Thesis (M.S.)--University of Arkansas, 2013.

This item must not be sold to any third party vendors.

Mississippian carbonate strata of the midcontinent contain prolific oil and gas reservoirs. Production from these carbonates has been primarily from two reservoir types, the Mississippi "chat" and recently denser chert-rich mudstone intervals. The"chat" interval is a high porosity chert residuum associated with the both the Osagean and basal Pennsylvanian unconformity. The distribution of the "chat" reservoir is discontinuous and heterogeneous. Recent horizontal drilling successes have reinvigorated academic and industry interest in the Lower Mississippian. Much of the activity is now targeting lower porosity, cherty, mudstone intervals of the Reeds Spring and Cowley Formations, which were previously considered to be non-economic.

ISBN: 9781303044625Subjects--Topical Terms:

3173827
Petroleum geology.

Subsurface stratigraphy and characterization of Mississippian (Osagean to Meramecian) carbonate reservoirs of the northern Anadarko Shelf, north-central Oklahoma.
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245 1 0 $a Subsurface stratigraphy and characterization of Mississippian (Osagean to Meramecian) carbonate reservoirs of the northern Anadarko Shelf, north-central Oklahoma.
300 $a 88 p.
500 $a Source: Masters Abstracts International, Volume: 51-05.
500 $a Adviser: Xiangyang Xie.
502 $a Thesis (M.S.)--University of Arkansas, 2013.
506 $a This item must not be sold to any third party vendors.
520 $a Mississippian carbonate strata of the midcontinent contain prolific oil and gas reservoirs. Production from these carbonates has been primarily from two reservoir types, the Mississippi "chat" and recently denser chert-rich mudstone intervals. The"chat" interval is a high porosity chert residuum associated with the both the Osagean and basal Pennsylvanian unconformity. The distribution of the "chat" reservoir is discontinuous and heterogeneous. Recent horizontal drilling successes have reinvigorated academic and industry interest in the Lower Mississippian. Much of the activity is now targeting lower porosity, cherty, mudstone intervals of the Reeds Spring and Cowley Formations, which were previously considered to be non-economic.
520 $a The study area lies along the shelf edge and slope margin near the Kansas-Oklahoma border comprising all or parts of Alfalfa, Grant, Kay, Woods, and Garfield Counties, Oklahoma. The dataset totals 150 wells with raster image logs. Gamma-ray, resistivity, microlog, photoelectric effect and density logs were all used to make stratigraphic correlations. Reservoir intervals occur near sequence-bounding unconformities that were exposed at periodic lowstands at the top of transgressive-regressive sequences, however, the spatial position and quality has not been well understood in north-central Oklahoma. The purpose of this study is to compile a high resolution sequence stratigraphic study of the Mississippian section from the shelf edge near the state line and south toward the distally starved basin.
520 $a Mississippian subcrops are a succession of prograding clinoforms. The compartments are interformational units within the Reeds Spring and Cowley Formations that are individually correlatable. The best quality reservoir is at the tops of shallowing upwards cycles below third and fourth order unconformities. Episodic subaerial exposure provided numerous opportunities for the formation of tripolitic chert reservoirs. There are multiple, distinct clinoforms with reservoir potential in the study area, which differ from conventional chat reservoirs. Reservoir quality clinoforms usually occur near the paleo shelf edge as this was an ideal environment for secondary porosity development during lowstands. Porosity decreases basinward within the wedges and with depth beneath sequence boundaries. Documentation of the spatial extent and quality of reservoir clinoforms within the Lower Mississippian adds value to the exploration and production potential of north-central Oklahoma.
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