Injection of steam foaming agents into producing wells

Details Injection of steam foaming agents into producing wells Injection of steam foaming agents into producing wells

1984-08-08

1986-03-25

Suchfield, George A.

Wells

Processes

Specific pattern of plural wells

166263, 166272, 166288, 166294, 166309, E21B 4324, E21B 4330

Patent

active

045776881

ABSTRACT:
The disclosed invention is a method of injecting steam foaming agents in conjunction with steam and usually, a non-condensable gas into production wells producing a substantially high water to oil ratio. The most preferred production wells for foaming agent injection are corner production wells of flooding patterns such as inverted 5- and 9-spots, especially when the flooding pattern contains infill wells between the central injection well and the corner production wells.
Although the method of injecting foaming agent, steam and usually, a non-condensable gas is effective with any foaming agent, the method works particularly well with foaming agents of the general formula:

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R. L. Eson, SPE Paper No. 11806 "Improvements in Sweep Efficiencies . . . ", 1983.
T. M. Doscher et al., "Field Demonstration of Steam Drive . . . 38 , Journal of Petroleum Technology, Jul. 1982, pp. 1535-1542.
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