Lubricating compositions for use with downhole fluids

Patent metadata

Field	Value
Publication number	US-10053935-B2
Application number	US-201414212050-A
Country	US
Kind code	B2
Filing date	Mar 14, 2014
Priority date	Jul 3, 2013
Publication date	Aug 21, 2018
Grant date	Aug 21, 2018

Abstract

An aqueous-based downhole fluid having a lubricant therein may be circulated within a subterranean reservoir wellbore where the downhole fluid may be or include a drilling fluid, a completion fluid, a fracturing fluid, a drill-in fluid, a workover fluid, and combinations thereof. The lubricant may include a clay stabilizer and a vegetable oil derivative, such as but not limited to, a sulfonated vegetable oil. The downhole fluid may include the lubricant in an effective amount for lubricating a first surface.

First claim

What is claimed is:

1. A method comprising:
circulating a downhole fluid within a subterranean reservoir wellbore, wherein the downhole fluid is selected from the group consisting of a well intervention fluid, a drilling fluid, a completion fluid, a fracturing fluid, a drill-in fluid, a workover fluid, and combinations thereof; and
adding a lubricant to the downhole fluid for lubricating a first surface, wherein the lubricant comprises a choline chloride clay stabilizer and sulfonated vegetable oil, wherein the coefficient of friction of the choline chloride clay stabilizer is such that the lubricity of the lubricant is maintained while also increasing the clay stabilizing properties of the fluid, and wherein the lubricant increases the lubricity of the fluid.

2. The method of claim 1 , wherein the first surface is selected from the group consisting of a wellbore casing, a drill string, a pipe, a formation, a drill bit, a metal surface within a mud motor, a formation evaluation tool, a drilling tool, a coiled tubing, and combinations thereof.

3. The method of claim 1 , wherein the lubricant comprises the sulfonated vegetable oil in an amount ranging from about 0.2 vol % to about 7 vol % of the total downhole fluid and the choline chloride clay stabilizer in an amount ranging from about 0.2 vol % to about 3 vol % of the total downhole fluid.

4. The method of claim 1 , wherein the downhole fluid is an aqueous-based fluid.

5. The method of claim 1 further comprising reducing at least one property selected from the group consisting of friction, torque, drag, wear, operating temperatures of the first surface, corrosion, and combinations thereof when the first surface contacts a second surface different from the first surface.

6. The method of claim 1 , wherein the pressure surrounding the first surface is up to about 10,000 psi.

7. The method of claim 1 , wherein the amount of the lubricant within the downhole fluid ranges from about 0.2 vol % to about 10 vol % of the total downhole fluid.

8. The method of claim 1 , further comprising performing a coiled tubing operation.

9. A method comprising:
circulating a downhole fluid within a subterranean reservoir wellbore, wherein the downhole fluid is selected from the group consisting of a well intervention fluid, a drilling fluid, a completion fluid, a fracturing fluid, a drill-in fluid, a workover fluid, and combinations thereof;
adding a lubricant to the downhole fluid for lubricating a first surface, wherein the lubricant comprises a choline chloride clay stabilizer and sulfonated vegetable oil, wherein the coefficient of friction of the choline chloride clay stabilizer is such that the lubricity of the lubricant is maintained while also increasing the clay stabilizing properties of the fluid, and wherein the lubricant increases the lubricity of the fluid; and
reducing at least one property selected from the group consisting of friction, torque, drag, wear, operating temperatures of the first surface, corrosion of the first surface, and combinations thereof.

10. The method of claim 9 , further comprising performing a coiled tubing operation.

11. A method comprising:
circulating a downhole fluid within a subterranean reservoir wellbore, wherein the downhole fluid is selected from the group consisting of a well intervention fluid, a drilling fluid, a completion fluid, a fracturing fluid, a drill-in fluid, a workover fluid, and combinations thereof; and
adding a lubricant to the downhole fluid for lubricating coil tubing, wherein the lubricant comprises a choline chloride clay stabilizer and sulfonated vegetable oil, wherein the coefficient of friction of the choline chloride clay stabilizer is such that the lubricity of the lubricant is maintained while also increasing the clay stabilizing properties of the fluid, and wherein the lubricant increases the lubricity of the fluid.

12. The method of claim 11 , wherein the sulfonated vegetable oil is present in an amount ranging from about 0.2 vol % to about 7 vol % of the total downhole fluid, and wherein the choline chloride clay stabilizer is present in an amount ranging from about 0.2 vol % to about 3 vol % of the total downhole fluid.

13. The method of claim 11 , wherein the amount of the lubricant within the downhole fluid ranges from about 0.2 vol % to about 10 vol % of the total downhole fluid.

14. The method of claim 11 , wherein the pressure surrounding the first surface is up to about 10,000 psi.

15. The method of claim 11 , wherein the downhole fluid further comprises a surfactant selected from the group consisting of non-ionic surfactants, anionic surfactants, and combinations thereof.

Assignees

• Baker Hughes Inc
• Baker Hughes A Ge Co Llc

Inventors

• Livescu Silviu
• Delorey John
• Misselbrook John

Classifications

• C09K8/02 Primary

  Well-drilling compositions · 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

• C09K8/68

  containing organic compounds · CPC title

• C09K8/64

  Oil-based compositions · CPC title

• C09K8/60

  Compositions for stimulating production by acting on the underground formation · CPC title