C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/70 (2006.01) C09K 8/94 (2006.01)
Patent
CA 2528696
Disclosed herein is a method of treating a subterranean formation utilizing a fluid having a splittable foamer, i.e., a fluid that creates a stable foam when it contacts the formation but that loses its ability to foam as it remains in contact with the formation for extended time. The present method has the advantage that the fluid can be recovered from the well unhindered by the difficulties involved with recovering a foamed fluid from a well. The present method does not require the use of breakers, though the splitting of the foam can be accelerated by introducing an organic or inorganic acid into the well, if so desired.
Gupta Satyanarayana D.v.
Hlidek Barry T.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Bj Services Company
Bj Services Company Canada
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