E - Fixed Constructions – 21 – B
Patent
E - Fixed Constructions
21
B
31/16
E21B 43/22 (2006.01)
Patent
CA 1152732
ABSTRACT OF THE DISCLOSURE Many petroleum formations contain water having excessive quantities of salt or divalent ions such as calcium or magnesium dissolved therein, and are additionally at a temperature from about 70 to about 300°F. Most surfactants otherwise usable for oil recovery operations are either ineffective in high salinity or hard water, or decompose or precipitate at the higher temperatures encountered in formations. An aqueous saline solution containing a sulfonate, ethoxylated alcohol or alkylphenol surfactant, either as the sole surfactant species, or as a co-surfactant with a more conventional anionic surfactant such as petroleum sulfonate, alkyl sulfonate, or alkylaryl sulfonate, is effective for use in formations containing water having substantial amounts of salt and/or divalent ion salts such as calcium or magnesium dissolved therein, and which additionally may be hotter than 120°F.
412415
Smart & Biggar
Texaco Development Corporation
LandOfFree
Surfactant oil recovery process usable in high temperature... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Surfactant oil recovery process usable in high temperature..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Surfactant oil recovery process usable in high temperature... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-676413