CEMENT TESTING
First Claim
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1. A system for testing cement, the system comprising:
- at least one cement testing apparatus, each cement testing apparatus comprising;
a pressure vessel defining;
a working volume inside the pressure vessel, the pressure vessel defining a first channel providing liquid communication through the pressure vessel to the working volume of the pressure vessel and a second channel providing liquid communication through the pressure vessel to the working volume of the pressure vessel; and
a substantially tubular sample container defining a sample volume inside the sample container, the sample container comprising walls extending from a first end with an opening to a second end with an opening, the sample container disposed in the working volume of the pressure vessel with the sample container substantially sealed to prevent liquid communication between the sample volume of the sample container and portions of the working volume of the pressure vessel outside the sample container;
wherein the sample container is positioned such that the first channel provides liquid communication through the pressure vessel to the sample volume of the sample container; and
the second channel provides liquid communication through the pressure vessel to the portions of the working volume of the pressure vessel outside the sample container.
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Abstract
Devices and methods for testing cement include: a pressure vessel with a sample container inside an interior working volume of the pressure vessel, the pressure vessel configured to supply a first pressurized fluid to control a pore pressure of a cement sample and to supply a second pressurized fluid to lateral exterior surfaces of the sample container to provide a confining pressure that can be different than the pore pressure.
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Citations
20 Claims
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1. A system for testing cement, the system comprising:
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at least one cement testing apparatus, each cement testing apparatus comprising; a pressure vessel defining;
a working volume inside the pressure vessel, the pressure vessel defining a first channel providing liquid communication through the pressure vessel to the working volume of the pressure vessel and a second channel providing liquid communication through the pressure vessel to the working volume of the pressure vessel; anda substantially tubular sample container defining a sample volume inside the sample container, the sample container comprising walls extending from a first end with an opening to a second end with an opening, the sample container disposed in the working volume of the pressure vessel with the sample container substantially sealed to prevent liquid communication between the sample volume of the sample container and portions of the working volume of the pressure vessel outside the sample container; wherein the sample container is positioned such that the first channel provides liquid communication through the pressure vessel to the sample volume of the sample container; and
the second channel provides liquid communication through the pressure vessel to the portions of the working volume of the pressure vessel outside the sample container. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of testing a cement, the method comprising:
- controlling pore pressure in a cement sample inside a sample container disposed in a pressure vessel of a testing apparatus while the cement sample is curing to provide a first pressure in the cement sample; and
simultaneouslycontrolling a confining pressure applied to lateral exterior surfaces of the sample container to provide a second pressure that can be different than the first pressure. - View Dependent Claims (15, 16, 17, 18, 19)
- controlling pore pressure in a cement sample inside a sample container disposed in a pressure vessel of a testing apparatus while the cement sample is curing to provide a first pressure in the cement sample; and
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20. A device for testing cement, the device comprising:
a pressure vessel with a sample container inside an interior working volume of the pressure vessel, the pressure vessel configured to supply a first pressurized fluid to control a pore pressure of a cement sample and to supply a second pressurized fluid to lateral exterior surfaces of the sample container to provide a confining pressure that can be different than the pore pressure.
Specification