- 专利标题： Ringing reduction in a nuclear magnetic resonance logging tool
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申请号： US16576567申请日： 2019-09-19
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公开(公告)号： US11048014B2公开(公告)日： 2021-06-29
- 发明人: Jie Yang , Lilong Li
- 申请人： Halliburton Energy Services, Inc.
- 申请人地址： US TX Houston
- 专利权人： Halliburton Energy Services, Inc.
- 当前专利权人： Halliburton Energy Services, Inc.
- 当前专利权人地址： US TX Houston
- 代理机构： Gilliam IP PLLC
- 主分类号： G01V3/32
- IPC分类号： G01V3/32 ; G01R33/38 ; E21B49/00
摘要：
A nuclear magnetic resonance (NMR) logging tool configured to be positioned in a borehole created in a subsurface formation. The NMR logging tool includes a magnet to induce a magnetic field in the subsurface formation, a transmission line, and a first shield positioned between the magnet and the transmission line. The NMR logging tool includes a transmitter and an antenna coupled to the transmitter by the transmission line. The antenna is to transmit a radio frequency (RF) magnetic field into the subsurface formation in response to the transmitter supplying power by the transmission line.