Invention Grant
- Patent Title: Method for subsurface electromagnetic surveying using two or more simultaneously actuated electromagnetic sources
- Patent Title (中): 使用两个或多个同时激励的电磁源进行地下电磁勘测的方法
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Application No.: US13551746Application Date: 2012-07-18
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Publication No.: US09097815B2Publication Date: 2015-08-04
- Inventor: Antoni Marjan Ziolkowski
- Applicant: Antoni Marjan Ziolkowski
- Applicant Address: GB Edinburgh
- Assignee: PGS EM Ltd.
- Current Assignee: PGS EM Ltd.
- Current Assignee Address: GB Edinburgh
- Main IPC: G01V3/00
- IPC: G01V3/00 ; G01V3/15 ; G01V3/12 ; G01V3/08
Abstract:
A method for determining a formation response form a detected electromagnetic signal resulting from a first electromagnetic signal imparted into a subsurface earth formation and from a second electromagnetic signal imparted into the formation, the first and second signals being imparted substantially contemporaneously. The detected signals are deconvolved using the first electromagnetic signal. The deconvolved detected signal is used to estimate the formation response to the first electromagnetic signal. Convolving the estimated formation response from the estimated formation response with the first electromagnetic signal and subtracting a result of the convulsion with the first electromagnetic signal from the detected signal.
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