E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/267 (2006.01) C09K 8/64 (2006.01) C09K 8/92 (2006.01)
Patent
CA 2232776
Oil degradable encapsulated breaker particles are used in fracturing operations to break hydro-carbon liquid gelled with salts of alkyl phosphate esters. The preferred breaker chemical is particulate urea coated with sulfonated EPDM.
Jones Cruise K.
Malekahmadi Fati
Newlove John C.
Nalco/exxon Energy Chemicals L.p.
Ondeo Nalco Energy Services L.p.
Smart & Biggar
LandOfFree
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