Greater Sierra (oil field) - Misplaced Pages

Greater Sierra (Sierra-Yoyo-Helmet-Desan)
Location of Greater Sierra in British Columbia
Country	Canada
Region	British Columbia
Offshore/onshore	onshore
Coordinates	58°50′N 121°25′W / 58.833°N 121.417°W / 58.833; -121.417
Operators	Petrocanada, Husky Oil, Canadian Natural Resources
Field history
Start of production	2000s
Production
Producing formations	Jean Marie, Muskwa, Horn River Formation

Greater Sierra (also called Helmet Area) is a large oil and gas field in northeastern British Columbia, Canada. It is east and north from the town of Fort Nelson, extending to the Alberta and Northwest Territories borders (150 and 130km respectively).

It was discovered in 2002.

Drilling rig activity takes place largely during the winter months, when the otherwise soft muskeg and boreal forest can be crossed on winter roads. Infrastructure is funded by a combination of private and public funds.

Major projects tap in the large gas reservoirs hosted in Mississippian and Devonian limestones such as the Jean Marie Member of the Redknife Formation. More recent projects extract natural gas from the Muskwa Formation and Horn River Formation. Horizontal drilling and hydraulic fracturing techniques are used to extract the gas from the low permeability shales.

Due to the large extent, the field is served by several airstrips (Helmet Airport, Fort Nelson/Mobil Sierra Airport, Fort Nelson Airport).

Companies with large interests in the area include Canadian Natural Resources and Petro-Canada.

References

Bott, Robert D. (2004). "Evolution Of Canada's oil and gas industry" (PDF). Energy BC.
"Sierra Yoyo Desan Road". Government of British Columbia.
"The Horn River Basin". Chinook Consulting.
Bialowas, S. A.; Temple, C. A.; Aminu, M. O. (October 19, 2010). "Greater Sierra Jean Marie Tight Gas Carbonate: Multidisciplinary Approach Drives Decade of Development". Onepetro.org.

v t e Western Canada Sedimentary Basin
Hydrocarbon history	Oil sands and heavy oil Frontier exploration and development Natural gas liquids Natural gas
Depositional regions	Southern Alberta Central Alberta Northwestern Alberta Plains South-central Canadian Rockies foothills North-east Plains North-central foothills Liard River Fort Nelson Northern Rocky Mountains Fort St. John Saskatchewan Western Manitoba
Oil and gas fields	Athabasca Greater Sierra Hamburg Leduc Pembina Wabasca
Fort Nelson area	Wapiti GRP Kotaneelee FM Dunvegan FM Ft. St. John GRP Sully FM SikanniFM Buckinghorse FM Scatter FM Belloy FM Rundle GRP Debolt FM Shunda FM Pekisko FM Banff FM Exshaw FM Kotcho FM Tetcho FM Trout River FM Kakisa FM Redknife FM Jean Marie MBR Fort Simpson FM Horn River FM Muskwa FM Waterways FM Slave Point FM Watt Mountain FM Muskeg FM Sulphur Point FM Presqu'ile FM Pine Point FM Keg River FM Chinchaga FM Canadian Shield

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References