发明名称 |
FRONT TANGENTIAL ANTENNA FOR NUCLEAR MAGNETIC RESONANCE (NMR) WELL LOGGING |
摘要 |
The magnet and antenna assemblies of a logging tool can be arranged according to geometries optimal for concentric or eccentric well logging operations. In an example configuration, a logging tool can include a magnet, a magnetic core made of a magnetically permeable material, and an antenna. The outward path of the antenna can be positioned along a surface of the magnetically permeable magnetic core that faces away from the magnet, and the return path of the antenna can also be positioned along a surface that faces away from the magnet. |
申请公布号 |
US2016170070(A1) |
申请公布日期 |
2016.06.16 |
申请号 |
US201414436857 |
申请日期 |
2014.05.06 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
Jachmann Rebecca;Goodman George David |
分类号 |
G01V3/32;E21B47/12 |
主分类号 |
G01V3/32 |
代理机构 |
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代理人 |
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主权项 |
1. A nuclear magnetic resonance system for well logging using an axially-extending tool, the system comprising:
a magnet; a core having a first surface facing the magnet and one or more other surfaces facing away from the magnet; and an antenna positioned along at least one of the one or more other surfaces, the antenna comprising a first loop of electrically conductive material and a second loop of electrically conductive material, the first and second loops comprising a common segment extending along an axis of the axially-extending tool. |
地址 |
Houston TX US |