Method to tailor cement composition to withstand carbon dioxide injection loads

Patent metadata

Field	Value
Publication number	US-12306169-B2
Application number	US-202217840100-A
Country	US
Kind code	B2
Filing date	Jun 14, 2022
Priority date	Jun 14, 2022
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

Methods of the present disclosure relate to tailoring cement compositions to withstand carbon dioxide injection. A method comprises predicting a depth of carbonation in a cement sheath; predicting spatially varying mechanical properties of the cement composition due to the carbonation; and determining a mechanical response of the cement sheath based on the spatially varying mechanical properties of the cement composition.

First claim

What is claimed is:

1. A method comprising:
predicting a depth of carbonation in a cement sheath formed from a cement composition placed in a wellbore, using a depth of carbonation model run on a computer;
predicting spatially varying mechanical properties of the cement composition due to the carbonation, using a mechanical property model run on the computer;
determining a mechanical response of the cement sheath based on the spatially varying mechanical properties of the cement composition, using a wellbore integrity analysis run on the computer;
preparing the cement composition based on the mechanical response of the cement sheath; and
introducing the cement composition into the wellbore.

2. The method of claim 1 , wherein the step of predicting spatially varying mechanical properties due to the carbonation includes testing a sample of the cement composition to determine volumetric expansion.

3. The method of claim 1 , further comprising:
selecting a second cement composition and predicting a depth of carbonation in a second cement sheath formed from the second cement composition;
predicting spatially varying mechanical properties of the second cement composition due to the carbonation; and
determining a mechanical response of the second cement sheath after the carbonation based on the spatially varying mechanical properties of the second cement composition.

4. The method of claim 1 , wherein the step of predicting spatially varying mechanical properties due to the carbonation includes testing a sample of the cement composition with s waves.

5. The method of claim 1 , wherein the depth of carbonation is a function of at least permeability.

6. The method of claim 1 , wherein the depth of carbonation is a function of at least a ratio of water to solids.

7. The method of claim 1 , wherein the step of predicting spatially varying mechanical properties due to the carbonation includes performing a hardness test on a sample of the cement composition and relating indentation values from the hardness test to compressive and tensile strengths and Young's modulus.

8. The method of claim 1 , wherein the step of predicting spatially varying mechanical properties due to the carbonation includes measuring porosity of a sample of the cement composition.

9. The method of claim 1 , wherein the step of predicting spatially varying mechanical properties due to the carbonation includes testing a sample of the cement composition with p waves.

10. A method comprising:
predicting a depth of carbonation in a cement sheath formed from a cement composition placed in a wellbore, using a depth of carbonation model run on a computer;
predicting spatially varying mechanical properties of the cement composition due to the carbonation, using a mechanical property model run on the computer;
determining a mechanical response of the cement sheath based on the spatially varying mechanical properties of the cement composition, using a wellbore integrity analysis run on the computer;
selecting a second cement composition based on the mechanical response of the cement sheath;
preparing the second cement composition based on the mechanical response of the cement sheath; and
introducing the second cement composition into the wellbore.

11. The method of claim 10 , wherein the step of predicting spatially varying mechanical properties due to the carbonation includes testing a sample of the cement composition to determine volumetric expansion.

12. The method of claim 10 , wherein the step of predicting spatially varying mechanical properties due to the carbonation includes testing a sample of the cement composition with s waves.

13. The method of claim 10 , wherein the step of predicting spatially varying mechanical properties due to the carbonation includes testing a sample of the cement composition with p waves.

14. The method of claim 10 , wherein the depth of carbonation is a function of at least permeability.

15. The method of claim 10 , wherein the depth of carbonation is a function of at least a ratio of water to solids.

16. The method of claim 10 , wherein the step of predicting spatially varying mechanical properties due to the carbonation includes performing a hardness test on a sample of the cement composition.

17. The method of claim 16 , wherein the step of predicting spatially varying mechanical properties due to the carbonation further includes relating indentation values from the hardness test to compressive and tensile strengths and Young's modulus.

18. The method of claim 10 , wherein the step of predicting spatially varying mechanical properties due to the carbonation includes measuring porosity of a sample of the cement composition.

Assignees

• Halliburton Energy Services Inc

Inventors

• Jandhyala Siva Rama Krishna
• Lende Gunnar
• Jimenez Walmy Cuello

Classifications

• C04B40/0032

  Controlling the process of mixing, e.g. adding ingredients in a quantity depending on a measured or desired value (B28C7/00 takes precedence) · CPC title

• C04B2201/50

  for the mechanical strength · CPC title

• C04B2111/00706

  around pipelines or the like · CPC title

• C09K8/42

  Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells (compositions for plastering C09K8/50) · CPC title

• G01N33/383 Primary

  Concrete or cement · CPC title