Alberta Geological Survey

Gas Production from the Dunvegan

Gas production from the Dunvegan occurs primarily in western Alberta. Included are fields producing from the Dunvegan and Doe Creek.

There are four Dunvegan gas fields with Initial Established Marketable Gas Reserves of over 1000 x 10⁶m³ (35 BCF). These four largest Dunvegan gas fields, listed in order of Initial Established Marketable gas reserves, are shown in Table 1. Cumulative production data for Alberta are updated to the end of 1990.

Table 1 - Four Largest Dunvegan Gas Fields (in units of 10⁶m³)

Initial Established

No.	Field	Formation	No. of Pools	Marketable Reserves	In-place Volume	Cumulative Production	Discovery Year
1	Valhalla	Doe Creek	19	4,042	5,808	1,57	1956
2	Bigstone	Dunvegan	2	3,305	5,348	902	1958
3	Waskagin	Dunvegan	6	2,656	3,630	1,681	1959
4	Simonette	Dunvegan	3	1,877	2,987	224	1959

Valhalla is in northwest Alberta, and the remaining three fields are in west-central Alberta.

Total recoverable gas reserves in the Dunvegan are estimated at 18.7 x 10⁹m³, of which 4 5 x 10⁹m³ have already been produced. Initial Established In-Place Volume of Dunvegan gas reserves totals 29 x 10⁹m³. There are a total of 139 Dunvegan gas pools, with an average 135 x 10⁶m³ recoverable gas reserves/pool. Table 2 lists the distribution of Dunvegam gas reserves according to In-Place Pool Size.

Table 2 - Size Distribution of Dunvegan Gas Pools (in units of 10⁶m³)

In-Place Pool Size Class	No. of Pools	Recoverable Reserves	Cumulative Production
1.0 to 10	10	37	-
10 to 100	89	2,227	199
100 to 1000	34	5,849	1,703
1000 to 10000	6	10,616	2,601
over 10000	-	-	-
Total	139	18,729 x 106m3	4,503 x 106m3