发明名称 |
EXAMINATION OF POROSITY BY NMR AND INTRUSION POROSIMETRY |
摘要 |
Properties of a porous solid sample19, which may be a core of rock taken from below ground are carried out using apparatus which performs both nuclear magnetic resonance (NMR) and porosimetry measurements. The apparatus has a magnet 11,12 providing a magnetic field and a radiofrequency coil 20 for transmitting and/or receiving electromagnetic radiation so as to bring about NMR in the magnetic field, a pressure vessel 14, 15 to hold a sample19within the magnetic field, a supply of a non-wetting liquid connected to the vessel, means to apply pressure to the non-wetting liquid to force liquid into pores of the sample19 means to measure applied pressure of the non-wetting liquid and means to measure volume thereof taken up by the sample. The pressure of non- wetting liquid may be increased in steps, using intruded liquid volume at each step to give a measurement of pore throat size using NMR at each step to give a measure of pore size such as diameter of equivalent sphere. The non-wetting liquid may be mercury and NMR may observe the Knight shift of 99 Hg, |
申请公布号 |
WO2012123882(A3) |
申请公布日期 |
2012.12.27 |
申请号 |
WO2012IB51152 |
申请日期 |
2012.03.12 |
申请人 |
SCHLUMBERGER TECHNOLOGY B.V.;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER CANADA LIMITED;SERVICES PETROLIERS SCHLUMBERGER;PRAD RESEARCH AND DEVELOPMENT LIMITED;SCHLUMBERGER SEACO, INC;MITCHELL, JONATHAN;FORDHAM, EDMUND |
发明人 |
MITCHELL, JONATHAN;FORDHAM, EDMUND |
分类号 |
G01V3/14;G01N24/08;G01N33/24 |
主分类号 |
G01V3/14 |
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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