Table 10.3b

Reports

Reports

Table 10.3b

Chapter 10 Table Gas Production from the Elk Point Group

View Table 10.3b as an image.

Gas production from the Elk Point Group is primarily derived from reefs in northeastern British Columbia and northwestern Alberta. There are eighteen Elk Point gas fields with Initial Established Marketable Gas Reserves of over 1000 x 106m3 (35 BCF). The ten largest Elk Point gas fields, listed in order of Initial Established Marketable gas reserves, are shown in Table 1. Cumulative production data include totals released to the end of 1990.

Table 1. Ten Largest Elk point Gas Fields (in units of 106m3).

Initial Established
No. Field Formation No. of Pools Marketable Reserves In-place Volume Cumulative Production Discovery Year
1 Yoyo Pine Point 1 45,944 51,104 33,625 1962
2 Sierra Pine Point 5 30,864 40,803 23,549 1965
3 Rainbow Keg River 131 15,761 32,118 7,903 1965
4 Mitsue Gilwood 2 5,317 13,246 4,219 1966
5 Beaver River Nahanni 1 5,118 7,312 4,996 1961
6 Zama Keg River 234 4,676 8,208 464 1953
7 Rainbow South Keg River 63 4,212 9,316 1,480 1965
8 Klua Pine Point 5 3,944 5,166 570 1973
9 Shekilie Keg River 88 2,922 5,244 209 1968
10 Nipisi Gilwood 7 2,815 7,952 1,892 1966

From Table 1, the two largest fields occur along The Middle Devonian reef edge flanking the Otter Park Shale Basin in northeastern British Columbia. Major gas production from the Elk Point is also present in the Gilwood at Mitsue and Nipisi and in the Keg River pinnacles in the Rainbow, Zama and Rainbow South basins.

Total recoverable gas reserves in the Elk Point are estimated at 142.7 x 109m3, of which 79.4 x 109m3 have already been produced. Initial Established In-Place Volume of Elk Point gas reserves totals 214.3 x 109m3. There are 896 Elk Point gas pools, with an average 159 x 106m3 recoverable gas reserves/pool.

Much of the Elk Point gas production is from small pools, such as are found in the Zama field. Table 2 lists the distribution of Elk Point gas reserves according to In-Place Pool Size

Table 2. Size Distribution of Elk Point Gas pools (in units of 106m3)

In-Place Pool Size Class No. of Pools Recoverable Reserves Cumulative Production
1.0 to 10 122 385 43
10 to 100 631 12,921 1,559
100 to 1000 114 17,898 4,561
1000 to 10000 26 42,203 25,533
over 10000 3 69,337 47,761
Total 896 142,745 x 106m3 79,458 x 106m3