E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
E21B 43/27 (2006.01) C09K 8/52 (2006.01) C09K 8/524 (2006.01) C09K 8/74 (2006.01)
Patent
CA 2182612
Subterranean oil-bearing formations are treated with aqueous acid solutions which include an effective amount of an ester or salts of sulfonated fatty acids, which exhibits both antisludge and demulsification properties.
Borden Ladner Gervais Llp
Nalco/exxon Energy Chemicals L.p.
Ondeo Nalco Energy Services L.p.
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