Remedial treatment for coal degas wells

Details Remedial treatment for coal degas wells Remedial treatment for coal degas wells

E - Fixed Constructions

21

B

166/29

E21B 37/00 (2006.01) C09K 8/92 (2006.01) E21B 43/00 (2006.01) E21B 43/25 (2006.01) E21B 43/26 (2006.01)

Patent

CA 1305659

ABSTRACT OF THE DISCLOSURE A remedial treatment for coal degas wells is described which enhances the production flow of gas and/or water from the wells. The treatment comprises the steps of: (a) injecting an aqueous foam through the wellbore and into the coal seam(s) at a pump rate of about 10 to about 40 BPM; and (b) flowing back the well at the maximum rate through an open, unrestricted choke. 89181ART0020

608526

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