| 发明名称 |
METHOD AND APPARATUS FOR INITIALIZATION OF A WELLBORE SURVEY TOOL |
| 摘要 |
A method and an apparatus are provided for determining an orientation of a tool with respect to a reference direction. The tool is configured to be moved along a wellbore and to generate information usable to determine an orientation of the tool. At least one first signal is indicative of an orientation of a directional reference system with respect to the reference direction. Information regarding a relative orientation of the tool with respect to the directional reference system is used to determine the orientation of the tool with respect to the reference direction in response at least in part to the at least one first signal. |
| 申请公布号 |
US2016084070(A1) |
申请公布日期 |
2016.03.24 |
| 申请号 |
US201514838160 |
申请日期 |
2015.08.27 |
| 申请人 |
GYRODATA, Incorporated |
发明人 |
Weston John Lionel;Ledroz Adrián Guillermo;Wright Eric |
| 分类号 |
E21B47/024;E21B19/00;G01C21/16 |
主分类号 |
E21B47/024 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for determining an orientation of a tool with respect to a reference direction, the tool configured to be moved along a wellbore and to generate information usable to determine an orientation of the tool, the method comprising:
mounting a directional reference system to the tool at a predetermined orientation with respect to the tool; generating at least one first signal indicative of an orientation of the directional reference system with respect to the reference direction after mounting the directional reference system to the tool; and using information regarding a relative orientation of the tool with respect to the directional reference system to determine the orientation of the tool with respect to the reference direction in response at least in part to the at least one first signal. |
| 地址 |
Houston TX US |
