IP Library › Granted Patent US 10,501,682
Granted Patent B2
US 10,501,682 · App. 16/295,816 · Granted Dec 10, 2019

Polysaccharide coated nanoparticle compositions comprising ions

Inventors: Jason R. Cox (Ashland, MA); Hooisweng Ow (Woburn, MA); Shannon L. Eichmann (Somerville, MA); Howard K. Schmidt (Dhahran, SA)
Assignee: Saudi Arabian Oil Company
C09K8/588C09K8/03C09K8/42C09K8/44C09K8/516C09K8/52C09K8/70C09K8/72C09K8/92E21B21/003E21B33/14E21B37/00E21B43/26C09K2208/10
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Quick Facts
Patent No.
US 10,501,682
App. No.
16/295,816
Granted
Dec 10, 2019
Kind
B2
Abstract

A composition including a coated nanoparticle including a nanoparticle and a cross-linked carbohydrate-based coating and an ion selected from the group consisting of Li + , Na + , K + , Rb + , Cs + , Be 2+ , Mg 2+ , Ca 2+ , Sr 2+ , Ba 2+ , and mixtures thereof; methods of making and using the composition; and systems including the composition.

Claims (5)

1. A method of treating a subterranean formation, the method comprising:

placing in a subterranean formation a nanoparticle composition comprising:

a coated nanoparticle comprising an iron oxide nanoparticle and a cross-linked carbohydrate-based coating comprising dextran, pentaerythritol glycidyl ether, and 2-amino-2-hydroxymethyl-propane-1,3-diol; and

an ion comprising Ca2+,

wherein the dextran is cross-linked by pentaerythritol glycidyl ether.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2019
From: SCHMIDT, HOWARD K.
To: SAUDI ARABIAN OIL COMPANY
Reel/Frame 048653/0395 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2019
From: ARAMCO SERVICES COMPANY
To: SAUDI ARABIAN OIL COMPANY
Reel/Frame 048653/0474 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2019
From: COX, JASON R.; OW, HOOISWENG; EICHMANN, SHANNON L.
To: ARAMCO SERVICES COMPANY
Reel/Frame 048654/0934 →
Continuity (3)
Continuation 15205774 · Jul 8, 2016
Provisional Application 62191881 · Jul 13, 2015
Related Publication 20190203106A1 · Jul 4, 2019
Cited By (2)
US 12,486,762 US 12,644,373