Strength retrogression mitigation materials for cement compositions

Patent metadata

Field	Value
Publication number	US-2021332284-A1
Application number	US-201816605781-A
Country	US
Kind code	A1
Filing date	Dec 3, 2018
Priority date	Dec 3, 2018
Publication date	Oct 28, 2021
Grant date	—

Abstract

Cement compositions for use in subterranean wellbores that include a monophase amorphous hydraulic binder material (MAHBM). The MAHBM may include a plurality of particles having a silica core and an amorphous coating substantially surrounding the silica core. The coating may comprise a plurality of amorphous particles, such as α-dicalcium silicate hydrate nanoparticles or microparticles. The MAHBM may be used as a strength retrogression mitigating additive in a cement composition or used as a high temperature cement.

First claim

What is claimed is:

1 . A cement composition for use in a subterranean wellbore comprising:
a hydraulic cement; water; and a monophase amorphous hydraulic binder material (MAHBM).

2 . The cement composition according to claim 1 , wherein the MAHBM is a strength retrogression mitigating additive.

3 . The cement composition according to claim 1 , wherein the MAHBM comprises a plurality of particles having a silica core and a coating substantially surrounding the silica core, wherein the coating comprises a material selected from the group consisting of amorphous α-dicalcium silicate hydrate (α-C 2 SH), amorphous tricalcium silicate (C 3 S), amorphous dicalcium silicate (C 2 S), amorphous tricalcium aluminate (C 3 A), amorphous tricalcium silicate hydrate (C 3 SH), amorphous dicalcium silicate hydrate (C 2 SH), amorphous tricalcium aluminate hydrate (C 3 AH), and any combination thereof.

4 . The cement composition according to claim 3 , wherein the silica core comprises one or more particles of a material selected from the group consisting of crystalline silica, quartz, volcanic glass, diatomaceous earth, fly ash or other silica-based waste materials, bio ash, amorphous silica, and any combination thereof.

5 . The cement composition according to claim 3 , wherein the coating comprises amorphous α-dicalcium silicate hydrate.

6 . The cement composition according to claim 3 , wherein the coating comprises a plurality of amorphous α-dicalcium silicate hydrate nanoparticles or microparticles.

7 . The cement composition according to claim 3 , wherein the silica core is characterized by a particle size of from about 5 μm to about 500 μm.

8 . The cement composition according to claim 1 , wherein the cement composition comprises from about 5% to about 70% MAHBM by weight.

9 . The cement composition according to claim 8 , wherein the cement composition further comprises from about 1% to about 70% by weight hydraulic cement and from about 25% to about 80% by weight water.

10 . The cement composition according to claim 1 , wherein the MAHBM is characterized by an average CaO/SiO 2 molar ratio of from about 0.1 to about 1.5.

11 . A cement composition for use in a subterranean wellbore comprising:
a monophase amorphous hydraulic binder material (MAHBM); and water; wherein the MAHBM comprises at least 40% by weight of the cement composition.

12 . The cement composition according to claim 11 , wherein the cement composition comprises from about 45% to about 65% by weight MAHBM.

13 . The cement composition according to claim 11 , wherein the MAHBM comprises a plurality of particles having a silica core and a coating substantially surrounding the silica core, wherein the coating comprises a material selected from the group consisting of amorphous α-dicalcium silicate hydrate (α-C 2 SH), amorphous tricalcium silicate (C 3 S), amorphous dicalcium silicate (C 2 S), amorphous tricalcium aluminate (C 3 A), amorphous tricalcium silicate hydrate (C 3 SH), amorphous dicalcium silicate hydrate (C 2 SH), amorphous tricalcium aluminate hydrate (C 3 AH), and any combination thereof.

14 . The cement composition according to claim 13 , wherein the silica core has an average particle size of from about 5 μm to about 500 μm; wherein the coating comprises a plurality of amorphous α-dicalcium silicate hydrate nanoparticles or microparticles; and wherein the MAHBM is characterized by an average CaO/SiO 2 molar ratio of from about 0.1 to about 1.5.

15 . A method comprising:
providing a cement composition comprising a monophase amorphous hydraulic binder material (MAHBM); and introducing the cement composition into a wellbore.

16 . The method according to claim 15 , further comprising introducing the cement composition into a portion of the wellbore having a temperature of at least 230° F.

17 . The method according to claim 15 , further comprising introducing the cement composition into an annulus between a casing and a wall of the wellbore; and
allowing the cement composition to set.

18 . The method according to claim 15 , wherein the cement composition comprises a hydraulic cement and water sufficient to form a slurry, the method further comprising introducing the cement composition into the wellbore using one or more pumps.

19 . The method according to claim 15 , wherein the MAHBM comprises a plurality of particles having a silica core and a coating substantially surrounding the silica core, wherein the coating comprises a material selected from the group consisting of amorphous α-dicalcium silicate hydrate (α-C 2 SH), amorphous tricalcium silicate (C 3 S), amorphous dicalcium silicate (C 2 S), amorphous tricalcium aluminate (C 3 A), amorphous tricalcium silicate hydrate (C 3 SH), amorphous dicalcium silicate hydrate (C 2 SH), amorphous tricalcium aluminate hydrate (C 3 AH), and any combination thereof.

20 . The method according to claim 15 , wherein the MAHBM comprises at least 40% by weight of the cement composition.

Assignees

• Halliburton Energy Services Inc

Inventors

• Pisklak Thomas Jason
• Lewis Samuel Jason
• Jones Paul Joseph
• Pearl Jr William Cecil
• Ruiz Stephanie

Classifications

• C04B20/1066 Primary

  Oxides, Hydroxides · CPC title

• Y02W30/91

  Use of waste materials as fillers for mortars or concrete · CPC title

• C04B28/04

  Portland cements · CPC title

• C09K8/467 Primary

  containing additives for specific purposes · CPC title

• C04B20/1077

  Cements, e.g. waterglass · CPC title