The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 21, 2023

Filed:

Mar. 09, 2021
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Nisar Ahmad Ansari, Ras Tanura, SA;

Mohamed Soliman, Ras Tanura, SA;

Samusideen Adewale Salu, Ras Tanura, SA;

Talal Al-Zahrani, Khobar, SA;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/06 (2012.01); E21B 47/00 (2012.01); E21B 34/02 (2006.01); E21B 43/16 (2006.01);
U.S. Cl.
CPC ...
E21B 47/006 (2020.05); E21B 34/025 (2020.05); E21B 43/16 (2013.01); E21B 47/06 (2013.01);
Abstract

Additive is introduced into a tubular that carries produced fluid from a wellhead; the additive addition prophylactically guards against damage to the tubular, such as from corrosion or oxidation. Gas from the wellhead is utilized as a pressure source for driving the additive into the tubular. The rate of additive injection is varied based on characteristics of the tubular or fluid in the tubular. Characteristics of the fluid in the tubular include iron content, residual additive, moisture content, and flowrate; characteristics of the tubular include its corrosion rate of the tubular. The characteristics are measured real time, measured historically, or predicted from a model.


Find Patent Forward Citations

Loading…