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US 8,783,091 B2Granted
Cement testing
AssigneeHalliburton Energy Services, Inc.
InventorsDavid L. Meadows, Robert P. Darbe, Keith D. Pewitt
Life of this patent
Estimating the term…
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.
Claims13
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 comprising walls extending from a first end with a first end member having an opening to a second end with a second end member having an opening, the end members configured to grip ends of a cement sample in the sample container, the sample container disposed in the working volume of the pressure vessel with the sample container substantially sealed to prevent liquid communication between a sample volume, defined by the first and second end members and a tubular member of the sample container, and portions of the working volume of the pressure vessel outside the sample container, the tubular member comprising a specified material that is more flexible than a material of the first and second end members, the tubular member comprising walls that are substantially sealed to the first end member and the second end member;
- 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.
4 more elements
A system for testing cement, the system comprising:
- at least one cement testing apparatus, each cement testing apparatus comprising:
- a pressure vessel defining:
- (i) a working volume inside the pressure vessel, (ii) a first channel providing liquid communication through the pressure vessel to the working volume of the pressure vessel, and (iii) 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:
- a first end member;
- a second end member, the first and second end members configured to grip ends of a cement sample in the sample container;
- 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;
- and
- a tubular member having walls that are substantially sealed to the first end member and the second end member, the tubular member comprising a material that is more flexible than a material of the first and second end members,
- 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.
9 more elements
Dependencies are inferred from the claim text.