Gels derived from poly(ethylidene norbornene)-b-poly(cyclopentene) block copolymer nanocomposites for viscosity modifications and drilling fluid applications

Patent metadata

Field	Value
Publication number	US-11149119-B2
Application number	US-201916560394-A
Country	US
Kind code	B2
Filing date	Sep 4, 2019
Priority date	Sep 4, 2018
Publication date	Oct 19, 2021
Grant date	Oct 19, 2021

Abstract

The present application is directed to a nanocomposite organo gel having a continuous polymeric network structure, wherein polymer chains are held together by ionic interaction between polymer chain ends, interparticle chain entanglements, layered silicate surface modifier, ionic salt, and layered silicate. The present application is also directed to methods of making and using the nanocomposite organo gel.

First claim

What is claimed:

1. A nanocomposite organo gel having a continuous polymeric network structure, wherein the continuous polymeric network structure comprises polymer chains held together by dynamic inter/intraparticle chain entanglements and ionic interaction between the polymer chain ends which terminate in a surface modifier, an ionic salt, and a layered silicate.

2. The nanocomposite organo gel of claim 1 , wherein the continuous polymeric network structure is an inter-penetrating polymeric network.

3. The nanocomposite organo gel of claim 1 , wherein the polymeric network structure is a block copolymer.

4. The nanocomposite organo gel of claim 1 , wherein the polymeric network structure comprises at least one PA block and at least one PB block, wherein PA represents a polymer block comprising one or more units of monomer A and PB represents a polymer block comprising one or more units of monomer B.

5. The nanocomposite organo gel of claim 4 , wherein the monomer A is selected from the group consisting of ethylidene norbornene and cyclopentene.

6. The nanocomposite organo gel of claim 4 , wherein the monomer B is selected from the group consisting of ethylidene norbornene and cyclopentene.

7. The nanocomposite organo gel of claim 1 , wherein the nanocomposite organo gel is thermoplastic.

8. A viscosity modifier comprising the nanocomposite organo gel according to claim 1 .

9. A fracking fluid composition comprising:
water;
sand; and
the nanocomposite organo gel of claim 1 .

10. A method for preparing a fracking liquid comprising:
mixing the nanocomposite organo gel of claim 1 with water and sand.

Assignees

• Univ Iowa State Res Found Inc

Inventors

• Cochran Eric W
• Kalluru Sri Harsha

Classifications

• C08J3/095 Primary

  Oxygen containing compounds · CPC title

• C08G61/08

  of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring · CPC title

• C08G2261/418

  Ring opening metathesis polymerisation [ROMP] · CPC title

• C08F232/04

  having one carbon-to-carbon double bond · CPC title

• C09K8/665

  containing inorganic compounds (proppants C09K8/80) · CPC title