Systems and methods for analyzing the characteristics and compositions of a dry cement

Patent metadata

Field	Value
Publication number	US-10131583-B2
Application number	US-201415313246-A
Country	US
Kind code	B2
Filing date	Aug 26, 2014
Priority date	Aug 26, 2014
Publication date	Nov 20, 2018
Grant date	Nov 20, 2018

Abstract

Optical analysis devices may be configured for optically interacting a material of interest with a chemical filter and a detector that together are configured to detect a characteristic of the material of interest, wherein optically interacting the material of interest with the chemical filter comprises absorbing, by the chemical filter, at least a portion of an electromagnetic radiation having optically interacted with the material of interest. Relative to dry cements, such optical analysis devices may be useful in classifying and/or grading dry cements and determining the composition and/or concentration of cement slurry additives to enhance the implementation efficacy of the dry cement.

First claim

The invention claimed is:

1. A method comprising:
optically interacting a dry cement with a chemical filter and a detector that together are configured to detect a characteristic of the dry cement, wherein optically interacting the dry cement with the chemical filter comprises absorbing, by the chemical filter, at least a portion of an electromagnetic radiation having optically interacted with the dry cement;
generating an output signal corresponding to the characteristic of the dry cement detected by the chemical filter and the detector;
receiving and processing the output signal with a signal processor to yield a value for the characteristic of the dry cement; and
determining at least one of a composition and a concentration of a cement slurry additive for use in combination with the dry cement based on the value of the characteristic of the dry cement,
wherein the dry cement is one selected from the group consisting of SiO 2 , Al 2 O 3 , FeO, Fe 2 O 3 , CaO, Na 2 O, K 2 O, MgO, SO 3 , Mn 2 O 3 , TiO 2 , P 2 O 5 , SnO, SrO, (CaO) 3 .SiO 2 , (CaO) 2 .SiO 2 , (CaO) 3 .Al 2 O 3 , (CaO) 3 .Al 2 O 3 .Fe 2 O 3 , CaSO 4 .H 2 O, Ca(OH) 2 , Al(OH) 4 − , H 4 SiO 4 , a sulfate salt, a phosphate salt, a carbonate salt, a sodium salt, a potassium salt, free lime, a metal containing compound, hydroxide, and water.

2. The method of claim 1 , wherein the characteristic of the dry cement is a concentration of one selected from the dry cement.

3. The method of claim 1 , wherein the characteristic of the dry cement is particle size distribution.

4. The method of claim 1 , wherein the dry cement is a Portland cement, a hydraulic cement, or a gypsum cement, and wherein the characteristic of the dry cement is a concentration of one selected from the group consisting of (CaO) 3 .SiO 2 , (CaO) 2 .SiO 2 , (CaO) 3 .Al 2 O 3 , and (CaO) 3 .Al 2 O 3 .Fe 2 O 3 .

5. The method of claim 1 , wherein the dry cement is a Portland cement, a hydraulic cement, or a gypsum cement, and wherein the characteristic of the dry cement is a concentration of one selected from the group consisting of a cadmium compound, a zinc compound, a nickel compound, a copper compound, a lead compound, a sulfate salt, a phosphate salt, a carbonate salt, a sodium salt, and a potassium salt.

6. The method of claim 1 , wherein the dry cement is a Sorel cement, and wherein the characteristic of the dry cement is a concentration of one selected from the group consisting of MgO, MgCl 2 , ZnO, ZnCl 2 , and water.

7. The method of claim 1 , wherein the dry cement is a calcium phosphate cement, and wherein the characteristic of the dry cement is a concentration of one selected from the group consisting of CaO, phosphate, water, and hydroxide.

8. The method of claim 1 , wherein the characteristic of the dry cement is a first characteristic of the dry cement, the method further comprising:
optically interacting the dry cement with a second chemical filter and either the detector or a second detector, which are configured to detect a second characteristic of the dry cement that is different than the first characteristic of the dry cement;
generating a second output signal corresponding to the second characteristic of the dry cement detected by the second chemical filter and either the detector or the second detector; and
receiving and processing the second output signal with the signal processor to yield a value for the second characteristic of the dry cement, wherein determining the at least one of a composition and a concentration of the cement slurry additive for use in combination with the dry cement is based on the values for the first and second characteristics of the dry cement.

9. The method of claim 8 , wherein the second characteristic of the dry cement is a concentration of one selected from the group consisting of SiO 2 , Al 2 O 3 , FeO, Fe 2 O 3 , CaO, Na 2 O, K 2 O, MgO, SO 3 , Mn 2 O 3 , TiO 2 , P 2 O 5 , SnO, SrO, (CaO) 3 .SiO 2 , (CaO) 2 SiO 2 , (CaO) 3 .Al 2 O 3 , (CaO) 3 .Al 2 O 3 .Fe 2 O 3 , CaSO 4 .H 2 O, Ca(OH) 2 , Al(OH) 4 , H 4 SiO 4 , a sulfate salt, a phosphate salt, a carbonate salt, a sodium salt, a potassium salt, free lime, a metal containing compound, hydroxide, and water.

10. The method of claim 1 , further comprising:
preparing a mixture comprising the dry cement and the cement slurry additive.

11. The method of claim 10 , further comprising:
implementing the mixture in a primary cementing operation, a secondary cementing operation, or a remedial cementing operation in a wellbore.

12. The method of claim 1 , further comprising modulating the optically interacted light with the dry cement at a modulation frequency selected according to a desired thermal thickness of a sensing layer in the chemical filter.

13. A method comprising:
optically interacting a dry cement with a chemical filter and a detector that together are configured to detect a concentration of (CaO) 3 .SiO 2 , wherein the dry cement is a Portland cement, a hydraulic cement, or a gypsum cement, wherein optically interacting the dry cement with the chemical filter comprises absorbing, by the chemical filter, at least a portion of an electromagnetic radiation having optically interacted with the dry cement;
optically interacting the dry cement with a second chemical filter and the detector that together are configured to detect a concentration of (CaO) 2 .SiO 2 , wherein optically interacting the dry cement with the second chemical filter comprises absorbing, by the second chemical filter, at least a portion of the electromagnetic radiation having optically interacted with the dry cement;
optically interacting the dry cement with a third chemical filter and the detector that together are configured to detect a concentration of (CaO) 3 .Al 2 O 3 , wherein optically interacting the dry cement with the third chemical filter comprises absorbing, by the third chemical filter, at least a portion of the electromagnetic radiation having optically interacted with the dry cement;
optically interacting the dry cement with a fourth chemical filter and the detector that together are configured to detect a concentration of (CaO) 3 .Al 2 O 3 .Fe 2 O 3 , wherein optically interacting the dry cement with the fourth chemical filter comprises absorbing, by the fourth chemical filter, at least a portion of the electromagnetic radiation having optically interacted with the dry cement;
generating a plurality of output signals corresponding to each of the concentration of (CaO) 3 .SiO 2 , the concentration of (CaO) 2 .SiO 2 , the concentration of (CaO) 3 .Al 2 O 3 , and the concentration of (CaO) 3 .Al 2 O 3 .Fe 2 O 3 ;
receiving and processing the plurality of output signals with at least one signal processor to yield a value for each of the concentration of (CaO) 3 .SiO 2 , the concentration of (CaO) 2 .SiO 2 , the concentration of (CaO) 3 .Al 2 O 3 , and the concentration of (CaO) 3 .Al 2 O 3 .Fe 2 O 3 ; and
classifying the dry cement based on the values of each of the concentration of (CaO) 3 .SiO 2 , the concentration of (CaO) 2 .SiO 2 , the concentration of (CaO) 3 .Al 2 O 3 , and the concentration of (CaO) 3 .Al 2 O 3 .Fe 2 O 3 .

14. The method of claim 13 further comprising:
optically interacting the dry cement with a fifth chemical filter and the detector that together are configured to detect a concentration of one selected from the group consisting of a cadmium compound, a zinc compound, a nickel compound, a copper compound, a lead compound, a sulfate salt, a phosphate salt, a carbonate salt, a sodium salt, and a potassium salt;
generating a plurality of output signals corresponding to the concentration of o

Assignees

• Halliburton Energy Services Inc

Inventors

• Pearl Jr William C
• Pearl Megan Renee

Classifications

• G01N33/383

  Concrete or cement · CPC title

• C04B28/02

  containing hydraulic cements other than calcium sulfates · 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

• C04B40/0096 Primary

  Provisions for indicating condition of the compositions or the final products, e.g. degree of homogeneous mixing, degree of wear · CPC title

• C04B28/04

  Portland cements · CPC title