Development of retarded acid system

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United States of America Patent

PATENT NO 11365339
APP PUB NO 20200291285A1
SERIAL NO

16890504

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Abstract

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In one embodiment, a retarded acid system comprises an aqueous acid and a retarding surfactant. The aqueous acid may comprise from 5 wt. % to 25 wt. % of a strong acid, that is, an acid having a Ka greater than or equal to 0.01. The aqueous acid may further comprise from 75 wt. % to 95 wt. % water. The retarding surfactant may have the general chemical formula R—(OC2H4)X—OH where R is a hydrocarbon having from 11 to 15 carbon atoms and x is an integer from 6 to 10. The retarding surfactant may have a hydrophilic-lipophilic balance from 8 to 16.

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Patent Owner(s)

Patent OwnerAddress
SAUDI ARABIAN OIL COMPANYP O BOX 5000 DHAHRAN 31311 31311

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Al-Yami, Abdullah Dhahran, SA 118 309
Safran, Ali Dhahran, SA 27 121
Wagle, Vikrant Abqaiq, SA 158 357

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