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.
Patent No.:
Date of Patent:
Mar. 29, 2022
Filed:
Mar. 02, 2020
Saudi Arabian Oil Company, Dhahran, SA;
Bader Ghazi Al-Harbi, Dammam, SA;
Norah Aljeaban, Khubar, SA;
Abstract
A methods and compositions for inhibiting iron sulfide scale in an oil production system having a well in a hydrocarbon-bearing formation. The method includes the steps of: supplying an aqueous scale-inhibiting solution comprising a water-soluble metal compound and a scale inhibitor, the water-soluble metal compound comprising a metal selected from the group consisting of lead, zinc, and combinations of the same; and wherein the scale inhibitor comprises a compound selected from the group consisting of phosphino polymers, inorganic polyphosphinates, organic phosphate esters, organic phosphonates, organic aminophosphates, polyphosphonates, polycarboxylates, and combinations of the same; and injecting the aqueous scale-inhibiting solution through the well such that iron sulfide scale is inhibited in the oil production system.