Success Formation
| Mannville Group Stratigraphic range: Early Cretaceous |
|
|---|---|
| Type | Geological formation |
| Sub-units | Glauconitic Sandstone, Ostracod Beds, Ellerslie Member, Grand Rapids Formation, Clearwater Formation, McMurray Formation, Waseca Sand, Sparky Sand, General Petroleum Sand, Rex Sand, Lloydminster Sand, Cummings Member, Dina Member, Pense Formation, Cantuar Formation, Success Formation |
| Underlies | Colorado Group |
| Overlies | Rundle Group, Banff Formation, Wabamun Formation |
| Thickness | up to 145 metres (480 ft) |
| Lithology | |
| Primary | Sandstone |
| Other | Shale |
| Location | |
| Coordinates | 53°18′31″N 111°09′15″W / 53.3087°N 111.1541°W |
| Region |
 Alberta,  Saskatchewan
|
| Country |
 Canada
|
| Type section | |
| Named for | Mannville, Alberta |
| Named by | Nauss, 1945 |
The Mannville Group is a stratigraphical unit of Cretaceous age in the Western Canadian Sedimentary Basin.
It takes the name from the town of Mannville, Alberta, and was first described in the Northwest Mannville 1 well by A.W. Nauss in 1945.
The Mannville Group consists of interbedded continental sand and shale in the base, followed by a calcareous sandstone member, marine shale, glauconitic sandstone and salt and pepper sandstone. An additional non-marine sequence is present in north-eastern Alberta.
Bitumen is produced from the McMurray Formation at the Athabasca Oil Sands. Heavy Oil is produced from the Wabiskaw Member of the Clearwater Formation in the Wabasca oil field, and from multiple formations in the Lloydminster and Provost areas in eastern Alberta and western Saskatchewan. Natural gas is extracted from the Ostracod and Glauconite beds in southern Alberta, and light oil is extracted from the Ellerslie Member in central and southern Alberta. Multiple oil fields and gas fields tap into the Manville Group.
Total gas reserves amount to 316,799 x 106m³ in the Lower Mannville and 644,774 x 106m³ in the Upper Mannville. Recoverable oil reserves amount to 105.64 x 106m³ in the Lower Mannville and 199.20 x 106m³ in the Upper Mannville.
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