| 发明名称 |
METHOD OF COMPENSATING MEASUREMENTS MADE BY A DOWNHOLE SURVEY INSTRUMENT |
| 摘要 |
A method of using a two-axis gyroscope on a housing for determining a rate of rotation of the housing about a third axis is provided. The two axes of the two-axis gyroscope are substantially orthogonal to each other, wherein the third axis has a small deviation from orthogonality relative to at least one of the two axis.
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| 申请公布号 |
CA2614505(A1) |
申请公布日期 |
2005.02.07 |
| 申请号 |
CA20042614505 |
申请日期 |
2004.08.06 |
| 申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
EPPLIN, M. DAVID;ESTES, ROBERT A.;RIGGS, RANDELL;BYNUM, R. JOHNATHAN |
| 分类号 |
E21B47/022;G01C19/42;E21B47/024;E21B47/09;G01P3/02 |
主分类号 |
E21B47/022 |
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