C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
31/13
C09K 8/78 (2006.01) C09K 8/528 (2006.01)
Patent
CA 1111632
ABSTRACT OF THE DISCLOSURE Process for cleaning a well penetrating an underground formation and optionally formation parts in the vicinity of the well using an aqueous composition comprising a bicyclic macrocyclic polyether (e.g. 4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo [8,8,8] hexacosane) and a salt of an organic acid (such as EDTA).
323729
de Jong Feike
Reinhoudt David N.
Torny-Schutte Gerridina J.
Shell Canada Limited
Smart & Biggar
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