| 发明名称 | Collocated tri-axial induction sensors with segmented horizontal coils | ||
| 摘要 | A logging tool for use in a borehole to obtain multicomponent resistivity induction measurements using collocated coils wherein each of the transverse antennas comprises a pair of mirror-image coils symmetrically disposed about an axis of the logging tool. | ||
| 申请公布号 | US8786287(B2) | 申请公布日期 | 2014.07.22 |
| 申请号 | US201012717000 | 申请日期 | 2010.03.03 |
| 申请人 | Baker Hughes Incorporated | 发明人 | Tabarovsky Leonty A.;Dashevsky Yuliy A.;Polozov Sergey V. |
| 分类号 | G01V3/10 | 主分类号 | G01V3/10 |
| 代理机构 | Mossman Kumar & Tyler PC | 代理人 | Mossman Kumar & Tyler PC |
| 主权项 | 1. An apparatus for estimating a value of a resistivity property of an earth formation, the apparatus comprising: a first antenna arrangement on a logging tool configured to be conveyed in a borehole, the first antenna arrangement including a first antenna and a second antenna disposed on opposite sides of the logging tool, the second antenna electrically coupled to the first antenna to suppress a first signal in the first antenna caused by an axially flowing current in a conductor inside the tool; and a processor configured to estimate the value of the resistivity property of the earth formation using a second signal in the first antenna and the second antenna responsive to an external magnetic field. | ||
| 地址 | Houston TX US | ||