公开(公告)号：US20160139231A1

公开(公告)日：2016-05-19

申请号：US14944288

申请日：2015-11-18

Applicant: Schlumberger Technology Corporation

Inventor： Dean Homan ,  Siddharth Misra ,  John Rasmus ,  Gerald N. Minerbo

IPC: G01R35/00 ,  G01N27/02

CPC classification number: G01V3/28 ,  G01V13/00

Abstract: A method for calibrating an electromagnetic core analysis tool is disclosed. The method includes disposing a tilted test loop inside of or outside of a tool having more than one antenna. A uniform test pack, a layered test pack, and an effective media test pack are each disposed in the tool. A signal is induced in a receiver antenna in the tool when a second antenna is energized with a known current of a known frequency. The induced signal is measured and a calibration gain and offset is determined. A corrected signal is produced and compared with the determined signal based on a forward model.

Abstract translation: 公开了一种用于校准电磁核心分析工具的方法。 该方法包括在具有多于一个天线的工具的内部或外部设置倾斜测试回路。 均匀的测试包，分层的测试包和有效的介质测试包各自被放置在工具中。 当第二天线以已知频率的已知电流通电时，在工具中的接收机天线中感应信号。 测量感应信号，并确定校准增益和偏移。 基于正向模型产生校正信号并与确定的信号进行比较。