发明名称 |
NMR MEASUREMENT OF WAX APPEARANCE IN FLUIDS |
摘要 |
A method for determining a wax appearance temperature of a fluid includes obtaining nuclear magnetic resonance (NMR) measurements of the fluid at a plurality of temperatures; deriving a NMR parameter from each of the NMR measurements; and determining the wax appearance temperature by analyzing the NMR parameter as a function of temperature. An apparatus for detecting wax appearance in a fluid includes a sample cell for holding a fluid for nuclear magnetic resonance (NMR) measurements at a plurality of temperatures; a temperature measuring device disposed proximate the sample cell; a magnet for polarizing molecules in the fluid in the sample cell; at least one radiofrequency (RF) coil for generating pulses of magnetic field and for detecting NMR signals; and circuitry for controlling and measuring the temperature of the fluid in the sample cell and for obtaining NMR measurements. |
申请公布号 |
CA2676815(C) |
申请公布日期 |
2016.08.16 |
申请号 |
CA20082676815 |
申请日期 |
2008.01.07 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
CHENG, YUESHENG;KHARRAT, ABDEL M. |
分类号 |
G01N24/08;G01R33/30;G01V3/32 |
主分类号 |
G01N24/08 |
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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