Gas Production from the Shunda/Pekisko - Mission Canyon

Gas production from the Shunda and Pekisko formations is primarily derived from the Shunda and Pekisko wedge edges in southern and central Alberta, and to a lesser extent in northern Alberta and B.C. No Shunda/Pekisko gas production occurs in Saskatchewan or Manitoba other than solution gas.

There are thirteen Shunda or Pekisko gas fields with Initial Established Marketable Gas Reserves of over 1000 x 10⁶m³ (35 BCF). The ten largest Shunda/Pekisko gas fields, listed in order of Initial Established Marketable gas reserves, are shown in Table 1. Cumulative production data are updated to the end of 1990.

Table 1- Ten Largest Shunda/Pekisko Gas Fields (in units of 10⁶m³)

**Initial Established**
No.	Field	Stratigraphic Unit	No. of Pools	Marketable Reserves	In-place Volume	Cumulative Production	Discovery Year
	Minnehik-BuckLk	Pekisko	1	21,500	28,105	17,128	1952
	Sylvan Lake	Pekisko/Shunda	27	4,115	6,121	1,791	1952
	Medicine River	Pekisko	18	3,723	6,325	992	1959
	Three Hills Crk	Pekisko	3	3,539	5,511	2,198	1953
	Wilson Creek	Pekisko	4	3,509	5,067	675	1960
	Whitecourt	Pekisko	2	3,233	4,794	1,418	1963
	Hotchkiss	UpMnvl/Shunda	1	2,130	2,803	1,600	1975
	Markerville	Pekisko	1	1,840	2,555	270	1976
	Greencourt	Pekisko	4	1,704	3,275	1,554	1961
	Rowley	Pekisko	3	1,676	2,121	1,291	1960

Nine of these largest Shunda/Pekisko gas fields occur along the Pekisko wedge edge in south and central Alberta. The tenth, Hotchkiss, is a commingled Upper Mannville/Shunda gas field along the wedge edge in northern Alberta. Minor Shunda/Pekisko gas production is also present in northeast B.C. along the wedge Edge and in structural traps near the Peace River Block

Total recoverable gas reserves in the Shunda/Pekisko are estimated at 61.9 x 109m3, of which 27.9 x 109m3 have already been produced. Initial Established In-Place Volume of Shunda/Pekisko gas reserves totals 91.2 x 109m3. There are a total of 242 Shunda/Pekisko gas pools, with an average 256 x 106m3 recoverable gas reserves/pool. Table 2 lists the distribution of Shunda /Pekisko gas reserves according to In-Place Pool Size.

Table 2 - Size Distribution of Shunda/Pekisko Gas Pools (in units of 106m3)

In-Place Pool Size Class	No. of Pools	Recoverable Reserves	Cumulative Production
1.0 to 10	15	50	14
10 to 100	125	3,466	313
100 to 1000	88	14,974	3,447
1000 to 10000	13	21,922	6,987
over 10000	1	21,500	17,128
Total	242	61,912 x 10⁶m³	27,889 x 10⁶m³

Last modified: August 14, 2008