发明名称 |
TEST APPARATUS FOR DIRECT MEASUREMENT OF EXPANSION AND SHRINKAGE OF OIL WELL CEMENTS |
摘要 |
A test apparatus for the measurement of expansion and/or shrinkage of a cement test sample during curing under pressure and temperature conditions that simulate downhole oil well conditions isolates the test sample from a first fixed volume of incompressible pressurized liquid using a flexible barrier that forms a wall of a first chamber in a pressure vessel assembly. The first chamber is sealed by a movable piston. A second pressurizing medium is contained in a second chamber on the opposite side of the piston, and is in fluid communication with a pump, whereby the piston is pressure-balanced between the first and the second medium. The piston moves in a bore of the vessel assembly in response to changes in the volume of the test sample during curing and the amount of linear movement of the piston is detected by a sensor system that measures, correlates and transmits any change in the position of the piston as a change in the sample volume for display and recording. |
申请公布号 |
WO2005065411(A3) |
申请公布日期 |
2005.12.15 |
申请号 |
WO2004US44048 |
申请日期 |
2004.12.29 |
申请人 |
SAUDI ARABIAN OIL COMPANY;JENNINGS, SCOTT, STEVEN |
发明人 |
JENNINGS, SCOTT, STEVEN |
分类号 |
G01F17/00;G01F22/00;G01F22/02;G01N3/02;G01N3/12;G01N33/38 |
主分类号 |
G01F17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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