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US Patent 11840665 Aqueous retarded acid treatment composition for well stimulation

Patent 11840665 was granted and assigned to SAUDI ARABIAN OIL COMPANY on December, 2023 by the United States Patent and Trademark Office.

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Patent attributes

Patent Applicant

SAUDI ARABIAN OIL COMPANY

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Current Assignee

SAUDI ARABIAN OIL COMPANY

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Kern Larry Smith0

Ali Alsalem0

Mohammed H. Al-Khaldi0

Abdullah Almoajil0

Date of Patent

December 12, 2023

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Patent Application Number

173961570

Date Filed

August 6, 2021

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Patent Citations

US Patent 10703957 Development of retarded acid system

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US Patent 7455112 Methods and compositions relating to the control of the rates of acid-generating compounds in acidizing operations

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US Patent 9920606 Preparation method, formulation and application of chemically retarded mineral acid for oilfield use

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US Patent 11230661 Propping open hydraulic fractures

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Patent Primary Examiner

Silvana C Runyan

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CPC Code

0

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Patent abstract

An acid treatment composition includes a nonionic surfactant, including nonyl phenol ethoxylate. The acid treatment composition also includes a retarding agent comprising magnesium, an acid, and water. The nonionic surfactant and retarding agent of the acid treatment composition are reactive with carbonate.

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