发明名称 |
DTEM with short spacing for deep, ahead of the drill bit measurements |
摘要 |
<p>A transmitter on a bottomhole assembly (BHA) is used for generating a transient electromagnetic signal in an earth formation. A processor estimates the distance to a resistivity interface using a signal produced by a receiver on the BHA. The transmitter-receiver distance may be less than 1 m. The estimation of the distance is done in real time using a thin conductive sheet approximation.</p> |
申请公布号 |
GB2497239(B) |
申请公布日期 |
2016.01.27 |
申请号 |
GB20130004878 |
申请日期 |
2011.08.30 |
申请人 |
BAKER HUGHES INCORPORATED |
发明人 |
GREGORY B ITSKOVICH;ARCADY REIDERMAN;MICHAEL B RABINOVICH;SERGEY MARTAKOV;EMMA IOMDINA |
分类号 |
G01V3/30 |
主分类号 |
G01V3/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|