发明授权
- 专利标题： Oscillator sensor for determining a property of an earth formation
- 专利标题（中）： 用于确定地层性质的振荡器传感器
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申请号： US12274414申请日： 2008-11-20
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公开(公告)号： US08258790B2公开(公告)日： 2012-09-04
- 发明人: Martin Folberth , Matthias Gorek , Eduard Kirchmeier
- 申请人： Martin Folberth , Matthias Gorek , Eduard Kirchmeier
- 申请人地址： US TX Houston
- 专利权人： Baker Hughes Incorporated
- 当前专利权人： Baker Hughes Incorporated
- 当前专利权人地址： US TX Houston
- 代理机构： Cantor Colburn LLP
- 主分类号： G01V3/10
- IPC分类号： G01V3/10
摘要：
An apparatus for evaluating an earth formation, the apparatus including: a logging tool configured to be conveyed through a borehole penetrating the earth formation; a coil inductively coupled to the earth formation, the coil being disposed at the logging instrument; and a circuit coupled to the coil wherein the circuit and the coil form an oscillator circuit, the oscillator circuit being configured to oscillate when a circuit parameter of the oscillator circuit satisfies an oscillation criterion, the circuit parameter being related to a property of the earth formation.
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