Table 14.32b3

Reports

Reports

Table 14.32b3

Chapter 14 Table Gas Production from the Debolt/Elkton

View Table 14.32b3 as an image.

Gas production from the Debolt Formation and Elkton Member is concentrated along porous wedge edges from southern through to northern Alberta, as well as in northeast B.C. and in the foothills disturbed belt. Included are fields producing from the Turner Valley, Debolt, Livingstone and Mt. Head formations and the overlying Stoddart Group. There is no gas production from this zone in Saskatchewan.

There are 55 Debolt/Elkton gas fields with Initial Established Marketable Gas Reserves of over 1000 x 106m3 (35 BCF). The ten largest Debolt/Elkton gas fields, listed in order of Initial Established Marketable gas reserves, are shown in Table 1. Cumulative production data for Alberta and British Columbia are updated to the end of 1990.

Table 1. Ten Largest Debolt/Elkton Gas Fields (in units of 106m3).

Initial Established
No. Field Stratigraphic Unit No. of Pools Marketable Reserves In-place Volume Cumulative Production Discovery Year
1 Waterton Rundle/Livingstone 10 65,563 123,223 49,159 1956
2 Jumping Pound W Rundle/TV 5 52,701 77,215 26,645 1960
3 Crossfield Rundle/TV 13 51,057 67,267 44,493 1951
4 Edson Elkton 4 43,391 56,756 38,116 1961
5 Brazeau River Elkton-Shunda 2 36,800 49,638 26,583 1959
6 Harmattan East Rundle/TV 3 29,894 42,490 16,936 1954
7 Dunvegan Debolt 24 29,487 39,066 16,437 1952
8 Harmattan-Elktn Rundle/TV 3 27,864 41,240 11,466 1953
9 Carstairs Elkton 2 23,916 30,339 21,784 1958
10 Wildcat Hills Rundle/Livingstone 1 22,000 29,411 16,756 1958

The Waterton, Jumping Pound West and Wildcat Hills gas fields occur in structural traps in the foothills disturbed belt of southern and central Alberta. The remaining seven are located at porous wedge edges within the Stoddart to Elkton interval.

Total recoverable gas reserves in the Debolt/Elkton are estimated at 499.0 x 109m3, of which 233.0 x 109m3 (i.e. 47%) have already been produced. Initial Established In-Place Volume of Debolt/Elkton gas reserves totals 956.8 x 109m3. There are a total of 409 Debolt/Elkton gas pools, with an average 120 x 106m3 recoverable gas reserves/pool Table 2 lists the distribution of Debolt/Elkton gas reserves according to In-Place Pool Size.

Table 2. Size Distribution of Debolt/Elkton Gas Pools (in units of 106m3).

In-Place Pool Size Class No. of Pools Recoverable Reserves Cumulative Production
1.0 to 10 14 49 9
10 to 100 124 4,039 614
100 to 1000 190 41,819 8,620
1000 to 10000 62 95,535 25,016
over 10000 19 357,555 198,694
Total 409 498,996 x 106m3 232,953 x 106m3