Nanocelluloses And Biogums For Viscosity Modification

• US 20200131421A1
• Filed: 05/11/2017
• Published: 04/30/2020
• Est. Priority Date: 05/11/2017
• Status: Active Grant

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Hall, Lee J., Rojas, Orlando Jose, Araujo, Carlos Luis Salas, Deville, Jay Paul
• Granted Patent: US 11,015,103 B2
• Time in Patent Office: Days
• CPC Class Codes: C09K 2208/08 Fiber-containing well treatment fluids
• CPC Class Codes: C09K 2208/10 Nanoparticle-containing well treatment fluids
• CPC Class Codes: C09K 8/035 Organic additives
• CPC Class Codes: C09K 8/10 Cellulose or derivatives thereof
• CPC Class Codes: C09K 8/905 Biopolymers
• CPC Class Codes: E21B 21/062 by mixing components

Abstract

A variety of systems, methods and compositions are disclosed for a treatment fluid comprising a nano-cellulose and a gum. An example method may comprise providing a treatment fluid wherein the treatment fluid comprises: a base fluid; a nano-cellulose; and a gum; and introducing the treatment fluid into a well bore penetrating a subterranean formation.

Claims

1. A method for well treatment comprising:

providing a treatment fluid wherein the treatment fluid comprises;

a base fluid;

a nano-cellulose; and

a gum; and

introducing the treatment fluid into a well bore penetrating a subterranean formation.

2. The method of claim 1, wherein the treatment fluid is a drilling fluid or a completion fluid.

3. The method of claim 1, wherein the base fluid comprises water.

4. The method of claim 1, wherein the nano-cellulose comprises at least one cellulose selected from nano-fibril cellulose, cellulose nanocrystals, and combinations thereof.

5. The method of claim 1, wherein the gum comprises at least one biopolymer selected from guar gum, locust bean gum, welan gum, xanthan gum, and combinations thereof.

6. The method of claim 1, wherein the nano-cellulose is present in a concentration in a range of from about 0.01 wt. % to about 1 wt. % based on the total weight of the treatment fluid.

7. The method of claim 1, wherein the gum is present in a concentration in a range of from about 0.01 wt. % to about 1 wt. % based on the total weight of the treatment fluid.

8. The method of claim 1, further comprising:

circulating the treatment fluid through a drill string, through a drill bit, and back above-surface through an annulus between the drill string and a wall of the well bore;

measuring a viscosity of the treatment fluid; and

adding additional gum, nano-cellulose, or both to the treatment fluid.

9. The method of claim 8, wherein the additional gum added is anionic if the measured viscosity is below a predetermined viscosity.

10. The method of claim 8 wherein the additional gum added is nonionic if the measured viscosity is above a predetermined viscosity.

11. A method for adjusting a viscosity of a drilling fluid comprising:

providing the drilling fluid comprising;

water;

nano-fibril cellulose; and

a gum;

circulating the drilling fluid through a drill string, through a drill bit, and back above-surface through an annulus between the drill string and a wall of a wellbore;

measuring a viscosity of the drilling fluid;

determining an amount of additional gum to add to the drilling fluid to produce a drilling fluid with a predetermined viscosity; and

re-circulating the drilling fluid though the drill string, though the drill bit, and back above-surface though the annulus between the drill string and the wall of the wellbore.

12. The method of claim 11, wherein the gum comprises at least one biopolymer selected from guar gum, locust bean gum, welan gum, xanthan gum, and combinations thereof.

13. The method of claim 11, wherein the gum is present in a concentration in a range of from about 0.01 wt. % to about 1 wt. % based on the total weight of the drilling fluid.

14. The method of claim 11, wherein the nano-fibril cellulose is present in a concentration in a range of from about 0.01 wt. % to about 1 wt. % based on the total weight of the drilling fluid.

15. The method of claim 11, wherein the additional gum added is anionic if the measured viscosity is below the predetermined viscosity.

16. The method of claim 11, wherein the additional gum added is nonionic if the measured viscosity is above a predetermined viscosity.

17. The method of claim 11, wherein the viscosity is measured before, during, and/or after circulation of the drilling fluid.

18. The method of claim 11, wherein the additional gum is added in a mixing tank, and wherein the drilling fluid is circulated by a pump.

19. The method of claim 11, further comprising measuring filtration control properties before, during, and/or after circulation of the drilling fluid.

20. The method of claim 11, wherein the measuring the viscosity comprises measuring the viscosity of the drilling fluid after the step of circulating, wherein the gum and the additional gum are the same and each comprise at least one biopolymer selected from guar gum, locust bean gum, welan gum, xanthan gum, and combinations thereof, and wherein the drilling fluid is a water-based drilling fluid.