Saudi Arabian Oil Company

King Fahd University of Petroleum and Minerals

Hassan Ali Al-Ajwad

Abdullah Raddad Al-Malki

Shaikh Asrof Ali

Mohammed Abdulmajeed Al-Daous

Mohamed Elanany

Khalid Majnouni

Rashed Alessa

Tao Chen

Qiwei Wang

Manal Al-Eid

Megat A Rithauddeen

Imran Ul-haq

Shadi Adel

Abdullah Al-Malki

A method and system for corrosion control and scale control in water supply for injection, including specifying a corrosion inhibitor for squeeze treatment of a water supply well, specifying a scale inhibitor that can form a complex with the corrosion inhibitor, pumping the corrosion inhibitor and the scale inhibitor through a wellbore of the water supply well into an aquifer in a subterranean formation, forming the complex of the corrosion inhibitor and the scale inhibitor, and pumping water from the water supply well to an injection well for injection, the water including the scale inhibitor released from the complex in the aquifer and the corrosion inhibitor released from the complex in the aquifer.

Well corrosion control

A corrosion inhibiting polymer is provided. The corrosion inhibiting polymer has a general formula of:

Acryloyl based polymers with active end cap as corrosion inhibitors

Copolymers having General Formula (I): in which Ris chosen from divalent C-Caliphatic groups and divalent C-Cheteroaliphatic groups, optionally substituted with one or more C-Caliphatic groups, heteroatoms independently chosen from O, N, and S, or combinations thereof, where: the divalent C-Cheteroaliphatic groups include one or two heteroatoms independently chosen from O, N, and S, and the maximum number of heteroatoms in Ris two; x is a molar fraction range chosen from 0.05 to 0.95; and y is a molar fraction range chosen from 0.05 to 0.95, where the summation of x and y equals 1. Methods for inhibiting formation of clathrate hydrates in a fluid capable of forming the clathrate hydrates. The methods include contacting the fluid with at least one copolymer of General Formula (I) under conditions suitable for forming the clathrate hydrates.

Succinimide-based copolymers and use as hydrate inhibitors

Copolymers having General Formula (I): in which R, R, and Rare chosen from Cto Caliphatic groups, Ris chosen from divalent Cto Clinear aliphatic groups and divalent Cto Clinear heteroaliphatic groups, optionally substituted with one or more C-Clinear aliphatic groups, C-Cbranched aliphatic groups, or combination thereof, R, R, and Rare each independently chosen from methyl or hydrogen, x is chosen from 0 to 0.8, y is chosen from 0 to 0.8, when y is 0, x is greater than 0, and when x is 0, y is greater than 0, and z is chosen from 0.1 to 0.9. The summation of x, y, and z equals 1. Methods for inhibiting formation of clathrate hydrates in a fluid capable of forming the clathrate hydrates, including contacting the fluid with at least one copolymer of General Formula (I).

Acrylamide-based copolymers, terpolymers, and use as hydrate inhibitors

Growing community of inventors

Dhahran, Saudi Arabia

Hassan Ali Al-Ajwad