Anti-bit balling additive

Patent metadata

Field	Value
Publication number	US-11274241-B2
Application number	US-202016894376-A
Country	US
Kind code	B2
Filing date	Jun 5, 2020
Priority date	Jun 5, 2020
Publication date	Mar 15, 2022
Grant date	Mar 15, 2022

Abstract

Drilling fluid compositions and methods for using drilling fluid compositions are provided with enhanced anti-bit balling properties that includes an aqueous base fluid, one or more drilling fluid additives, and an anti-bit balling additive where the anti-bit balling additive comprises a C 15 -C 18 alkene or a mixture of two or more C 15 -C 18 alkenes. Methods for using the drilling fluid compositions may further include mixing the mixing an aqueous base fluid with one or more drilling fluid additives and an anti-bit balling additive, wherein the anti-bit balling additive includes a C 15 -C 18 alkene or a mixture of two or more C 15 -C 18 alkenes, and introducing the drilling fluid to a subterranean formation.

First claim

What is claimed is:

1. A drilling fluid composition with enhanced anti-bit balling properties comprising:
an aqueous base fluid;
one or more drilling fluid additives; and
an anti-bit balling additive, wherein the anti-bit balling additive comprises:
a C 15 -C 18 alkene or a mixture of two or more C 15 -C 18 alkenes, and
polydimethyl silicone polymer with silica in an amount ranging from 0.1 to 40 wt %.

2. The drilling fluid composition of claim 1 , wherein the drilling fluid comprises a clay-based component.

3. The drilling fluid composition of claim 1 , wherein the anti-bit balling additive further comprises one or more selected from the group consisting of a dimethyl silicon polymer with silica, polypropylene glycol, or a mixture thereof.

4. The drilling fluid composition of claim 1 , wherein the anti-bit balling additive comprises the C 15 -C 18 alkene in an amount ranging from 60 to 99.9 wt %.

5. The drilling fluid composition of claim 4 , wherein the anti-bit balling additive comprises polypropylene glycol in an amount ranging from 0.1 to 40 wt %.

6. The drilling fluid composition of claim 1 , wherein the one or more drilling fluid additives is one or more additives selected from the group consisting of weighting agents, fluid loss control agents, lost circulation control agents, antifoaming agents, supplemental weighting agents, fluid loss additives, viscosity adjusters, an alkali reserve, or a mixture thereof.

7. A method for using a drilling fluid with enhanced anti-bit balling properties in drilling operations, the method comprising:
mixing an aqueous base fluid with one or more drilling fluid additives and an anti-bit balling additive, wherein the anti-bit balling additive comprises: a C 15 -C 18 alkene or a mixture of two or more C 15 -C 18 alkenes, and, polydimethyl silicone polymer with silica in an amount ranging from 0.1 to 40 wt %; and
introducing the drilling fluid to a subterranean formation.

8. The method of claim 7 , wherein the anti-bit balling additive comprises one or more selected from the group consisting of a dimethyl silicon polymer with silica, polypropylene glycol, or a mixture thereof.

9. The method of claim 7 , wherein introducing the drilling fluid comprises injecting the drilling fluid and at least partially circulating the drilling fluid within the subterranean formation.

10. The method of claim 8 , wherein the anti-bit balling additive comprises polypropylene glycol in an amount ranging from 0.1 to 40 wt %.

11. The method of claim 7 , wherein the drilling fluid comprises a clay-based component selected from one or more of the group consisting of lime (CaO), CaCO 3 , bentonite, montmorillonite clay, barium sulfate (barite), hematite (Fe 2 O 3 ), mullite (3Al 2 O 3 .2SiO 2 or 2Al 2 O 3 .SiO 2 ), kaolin, (Al 2 Si 2 O 5 (OH) 4 or kaolinite), alumina (Al 2 O 3 , or aluminum oxide), silicon carbide, tungsten carbide, or a mixture thereof.

12. The method of claim 11 , wherein the drilling fluid comprises the clay-based component in an amount ranging from 1 to 20 wt %.

13. A drilling fluid composition with enhanced anti-bit balling properties comprising:
an aqueous base fluid;
one or more drilling fluid additives;
a clay-based component; and
an anti-bit balling additive, wherein the anti-bit balling additive comprises (i) a C 15 -C 18 alkene or a mixture of two or more C 15 -C 18 alkenes, and (ii) at least one of dimethyl silicone polymer with silica and polypropylene glycol.

14. The drilling fluid composition of claim 13 , wherein the drilling fluid comprises the clay-based component in an amount ranging from 1 to 20 wt %.

15. The drilling fluid composition of claim 13 , wherein the anti-bit balling additive comprises the C 15 -C 18 alkene in an amount ranging from 60 to 99 wt %.

16. The drilling fluid composition of claim 1 , wherein the drilling fluid comprises the anti-bit balling additive in an amount ranging from 0.1 to 15 wt %.

17. The drilling fluid composition of claim 13 , wherein the drilling fluid comprises greater than 70 wt % water.

Assignees

• Saudi Arabian Oil Co

Inventors

• Alanqari Khawlah A
• Al-Yami Abdullah S
• Alalhareth Nasser Salem
• Alsafran Ali Mohammed

Classifications

• C09K8/035 Primary

  Organic additives · CPC title

• E21B43/162

  Injecting fluid from longitudinally spaced locations in injection well · CPC title

• C09K8/032

  Inorganic additives · CPC title

• C09K2208/12

  Swell inhibition, i.e. using additives to drilling or well treatment fluids for inhibiting clay or shale swelling or disintegrating · CPC title

• C09K8/24 Primary

  Polymers · CPC title