C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/74 (2006.01) C09K 8/08 (2006.01) C09K 8/528 (2006.01) C09K 8/90 (2006.01) E21B 37/06 (2006.01) E21B 43/27 (2006.01)
Patent
CA 2677577
Methods are disclosed herein including, in one embodiment, the method comprising: providing a fluid that comprises an acid, crosslinked oxidized xanthan, and optionally, a base fluid; placing the fluid in a well bore penetrating a subterranean formation; and allowing the fluid to acidize at least a portion of the formation or damage contained therein. In another embodiment, herein provided is a fluid for subterranean uses comprising an acid and crosslinked, oxidized xanthan.
La présente invention concerne des procédés consistant, selon un mode de réalisation, à utiliser un fluide contenant un acide, du xanthane oxydé réticulé et éventuellement un fluide de base; à placer le fluide dans un puits de forage creusé dans une formation souterraine; et à laisser le fluide acidifier au moins une partie de la formation ou les substances endommageant la formation présentes dans celle-ci. Selon un autre mode de réalisation, cette invention concerne un fluide pour utilisations souterraines contenant un acide et du xanthane oxydé réticulé.
Halliburton Energy Services Inc.
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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