LATE TIME ROTATION PROCESSING OF MULTI-COMPONENT TRANSIENT EM DATA FOR FORMATION DIP AND AZIMUTH,申请号US201414539014-传众专利搜索

LATE TIME ROTATION PROCESSING OF MULTI-COMPONENT TRANSIENT EM DATA FOR FORMATION DIP AND AZIMUTH

申请公布号：US2015134256(A1)

申请号：US201414539014

申请日期：2014.11.12

申请公布日期：2015.05.14

申请人：

Nikitenko Marina N.;Rabinovich Michael Boris;Sviridov Mikhail V.

发明人：Nikitenko Marina N.;Rabinovich Michael Boris;Sviridov Mikhail V.

分类号：G01V3/38;G01V3/12

主分类号：G01V3/38

地址：Novosibirsk RU

摘要：A system and method to determine a dip angle and an azimuth angle of a formation are described. The system includes a transmitter disposed in a borehole to change a transmitted current to induce a current in an earth formation, and a receiver disposed in the borehole, spaced apart from the transmitter, to receive transient electromagnetic signals. The system also includes a processor to extract multi-time focusing (MTF) responses from the transient electromagnetic signals, determine a relative dip angle and a rotation of a tool comprising the transmitter and receiver based on the MTF responses, and estimate the dip angle and the azimuth angle of the formation based on the relative dip angle and the rotation of the tool.

主权项：1. A system to determine a dip angle and an azimuth angle of a formation, the system comprising: a transmitter disposed in a borehole, the transmitter configured to change a transmitted current to induce a current in an earth formation; a receiver disposed in the borehole, spaced apart from the transmitter and configured to receive transient electromagnetic signals; and a processor configured to extract multi-time focusing (MTF) responses from the transient electromagnetic signals, determine a relative dip angle and a rotation of a tool comprising the transmitter and receiver based on the MTF responses, and estimate the dip angle and the azimuth angle of the formation based on the relative dip angle and the rotation of the tool.