Drill-in fluids comprising nanoparticulates for consolidating subterranean formations while drilling

Patent metadata

Field	Value
Publication number	US-9862875-B2
Application number	US-201314906282-A
Country	US
Kind code	B2
Filing date	Oct 29, 2013
Priority date	Oct 29, 2013
Publication date	Jan 9, 2018
Grant date	Jan 9, 2018

Abstract

Embodiments herein include methods comprising providing a drill-in fluid comprising an aqueous base fluid and nanoparticulates; providing a drilling apparatus comprising a drill string and a drill bit; circulating the drill-in fluid while drilling a reservoir interval in a subterranean formation with the drilling apparatus such that the nanoparticles penetrate into the subterranean formation; and consolidating unconsolidated particles within the subterranean formation with the nanoparticles.

First claim

The invention claimed is:

1. A method comprising:
providing a drill-in fluid comprising an aqueous base fluid, a weighting agent and nanoparticulates, the nanoparticulates at least partially impregnated or coated with a delayed tackifying agent;
wherein the delayed tackifying agent is selected from a polymerizable monomer;
a polymerizable oligomer; a two-component resin agent; and any combination thereof;
providing a drilling apparatus comprising a drill string and a drill bit;
circulating the drill-in fluid while drilling a reservoir interval in a subterranean formation with the drilling apparatus such that the nanoparticles penetrate into the subterranean formation; and
consolidating unconsolidated particles to form cohesive consolidated particles with stable bridge points between particles which are not overcome by flowing fluids within the subterranean formation with the nanoparticles.

2. The method of claim 1 , wherein the nanoparticulates are formed from a material selected from the group consisting of a silk; a cellulose; a chitin; a chitosan; a starch; a polyamide; carbon silica; alumina; zirconia; a polyurethane; a polyester; a polyolefin; collagen; a polyglycolide; an alkaline earth metal oxide; an alkaline earth metal hydroxide; an alkali metal oxide; an alkali metal hydroxide; a transition metal oxide; a transition metal hydroxide; a post-transition metal oxide; a post-transition metal hydroxide; a piezoelectric crystal; a pyroelectric crystal; and any combination thereof.

3. The method of claim 1 , wherein the nanoparticulates have a shape selected from the group consisting of sphere-shaped; rod-shaped; fiber-shaped; cup-shaped; cube-shaped; truncated cube-shaped; rhombic dodecahedron-shaped; truncated rhombic-dodecahedron-shaped; oval-shaped; diamond-shaped; pyramid-shaped; polygon-shaped; torus-shaped; dendritic-shaped; astral-shaped; cylinder-shaped; irregular-shaped; triangular-shaped; bipyramid-shaped; tripod-shaped; wire-shaped; tetrahedron-shaped; cuboctahedron-shaped; octahedron-shaped; truncated octahedron-shaped; icosahedron-shaped; and any combination thereof.

4. The method of claim 3 , wherein the nanoparticulates are selected from the group consisting of fiber-shaped, rod-shaped, and any combination thereof and have a diameter in the range of about 5 to about 100 nanometers, and a length in the range of about 50 to 2000 nanometers.

5. The method of claim 1 , wherein the nanoparticulates have a size in the range from about 1 to about 2000 nanometers in their longest dimension.

6. The method of claim 1 , wherein the nanoparticulates are at least partially impregnated with an ion selected from the group consisting of a monoatomic cation; a monoatomic anion; a polyatomic cation; a polyatomic anion; and any combination thereof.

7. The method of claim 1 , wherein the nanoparticulates penetrate into the subterranean formation in the range of between about 0.1 to about 6 wellbore diameters.

8. The method of claim 1 , wherein the drill-in fluid further comprises at least one selected from the group consisting of a water-soluble polymer; a foaming agent; a gas; a viscoelastic surfactant; a weighting agent; and any combination thereof.

9. A method comprising:
providing a drill-in fluid comprising an aqueous base fluid, a weighting agent and nanoparticulates, the nanoparticulates at least partially impregnated or coated with a delayed tackifying agent;
wherein the delayed tackifying agent is selected from a polymerizable monomer;
a polymerizable oligomer; a two-component resin agent; and any combination thereof;
providing a drilling apparatus comprising a drill string and a drill bit;
circulating the drill-in fluid while drilling a reservoir interval in a subterranean formation with the drilling apparatus;
consolidating unconsolidated particles to form cohesive consolidated particles with stable bridge points between particles which are not overcome by flowing fluids within the subterranean formation with the nanoparticles;
placing a casing string adjacent to the reservoir interval; and
cementing the casing string.

10. The method of claim 9 , wherein at least a portion of the drill string comprises the casing string.

11. The method of claim 9 , further comprising perforating the casing string and fracturing the subterranean formation at the reservoir interval.

12. The method of claim 9 , wherein the nanoparticulates are formed from a material selected from the group consisting of a silk; a cellulose; a chitin; a chitosan; a starch; a polyamide; carbon silica; alumina; zirconia; a polyurethane; a polyester; a polyolefin; collagen; a polyglycolide; an alkaline earth metal oxide; an alkaline earth metal hydroxide; an alkali metal oxide; an alkali metal hydroxide; a transition metal oxide; a transition metal hydroxide; a post-transition metal oxide; a post-transition metal hydroxide; a piezoelectric crystal; a pyroelectric crystal; and any combination thereof.

13. The method of claim 9 , wherein the nanoparticulates have a shape selected from the group consisting of sphere-shaped; rod-shaped; fiber-shaped; cup-shaped; cube-shaped; truncated cube-shaped; rhombic dodecahedron-shaped; truncated rhombic-dodecahedron-shaped; oval-shaped; diamond-shaped; pyramid-shaped; polygon-shaped; torus-shaped; dendritic-shaped; astral-shaped; cylinder-shaped; irregular-shaped; triangular-shaped; bipyramid-shaped; tripod-shaped; wire-shaped; tetrahedron-shaped; cuboctahedron-shaped; octahedron-shaped; truncated octahedron-shaped; icosahedron-shaped; and any combination thereof.

14. The method of claim 13 , wherein the nanoparticulates are selected from the group consisting of fiber-shaped, rod-shaped, and any combination thereof and have a diameter in the range of about 5 to about 100 nanometers, and a length in the range of about 50 to 2000 nanometers.

15. The method of claim 9 , wherein the nanoparticulates have a size in the range from about 1 to about 2000 nanometers in their longest dimension.

16. The method of claim 9 , wherein the nanoparticulates are at least partially impregnated with an ion selected from the group consisting of a monoatomic cation; a monoatomic anion; a polyatomic cation; a polyatomic anion; and any combination thereof.

17. The method of claim 9 , wherein the drill-in fluid further comprises at least one selected from the group consisting of a water-soluble polymer; a foaming agent; a gas; a viscoelastic surfactant; a weighting agent; and any combination thereof.

18. The method of claim 9 , wherein the nanoparticulates penetrate into the subterranean formation in the range of between about 0.1 to about 6 wellbore diameters.

Assignees

• Halliburton Energy Services Inc

Inventors

• Nguyen Philip D
• Vo Loan K
• Hall Lee J
• Jamison Dale E

Classifications

• C09K8/04

  Aqueous well-drilling compositions · CPC title

• E21B21/00

  Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor (freeing objects stuck in boreholes by flushing E21B31/03) · CPC title

• C09K8/57 Primary

  Compositions based on water or polar solvents (C09K8/565 takes precedence) · CPC title

• E21B7/00

  Special methods or apparatus for drilling · CPC title

• C09K2208/10

  Nanoparticle-containing well treatment fluids · CPC title