Paper: Economics of Water Flooding the Grayburg Dolomite in South Cowden Field

In February 1955, the first water was injected into the Grayburg Dolomite in the South Cowden Field. Four injection wells and one producing well on the Paul Moss et ux Lease of Forest Oil Corporation formed the first 40-acre 5 spot. In the past ten years additional injection wells have been drilled and several wells converted to injection service for a total of 49 active injection wells (includes 17 line injection wells with offset operators) in the 3,354.3 acre Paul Moss et ux lease waterflood. The successful performance of the waterflood, which is operated under the proration rules of Texas, is attributed to the planned development rate, the pattern chosen and experienced waterflood operation. The economic picture which is presented in the paper, shows that profitable development and operation will continue for at least 18 more years; the cost of producing waterflood barrels is greater than for primary barrels on the basis studied.