E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
166/22
E21B 43/267 (2006.01) C09K 8/70 (2006.01)
Patent
CA 1283040
ABSTRACT A continuous process for hydraulic fracturing of formations with in-situ nitrogen foam generation through the reaction of equimolar solu- of of ammonium chloride and sodium nitrite. The foam formed has a quality between 0.50 and 0.98, an excellent sand carrying capacity and the yield of the reaction reaches nearly 61.0% after 5 minutes.
568120
de Almeida Franco Zadson
Khalil Carlos Nagib
Gowling Lafleur Henderson Llp
Petroleo Brasileiro S.a. - Petrobras
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