发明名称 |
Toroidal link for RPM measurement |
摘要 |
<p>A measurement-while-drilling system includes a lower toroid, wherein the lower toroid has a lower toroid winding and is adapted to engage a mud motor shaft and is further adapted to receive a signal from one or more sensors and an upper toroid, wherein the upper toroid has a upper toroid winding; and a magnet disposed along the mud motor shaft within the lower toroid. The lower toroid and the upper toroid are disposed so that a signal from the lower toroid is induced in the upper toroid. The lower toroid winding is non-uniform so that the signal induced in the upper toroid is indicative of a rotation rate of the mud motor shaft.</p> |
申请公布号 |
AU2013399647(A1) |
申请公布日期 |
2016.01.21 |
申请号 |
AU20130399647 |
申请日期 |
2013.09.03 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
WILLIAMS, PERCIVAL F. |
分类号 |
E21B47/00;E21B45/00;G01V3/20 |
主分类号 |
E21B47/00 |
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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