Method of Mapping Resistive or Conductive Targets onshore or offshore and an Apparatus for Applying the Method

• US 20160041289A1
• Filed: 08/07/2015
• Published: 02/11/2016
• Est. Priority Date: 08/07/2014
• Status: Abandoned Application

• Current Assignee: Wen J. Whan
• Original Assignee: Wen J. Whan
• Inventors: Whan, Wen J.
• Application Number:
  US14/821,391
• Publication Number:
  US 20160041289A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G01V 2003/084 Sources
• CPC Class Codes: G01V 3/083 Controlled source electromagnetic [CSEM] surveying

Abstract

An apparatus of the marine and onshore controlled source electromagnetic survey and a method of applying the apparatus are related. The apparatus comprises at least one signal transmitter and at least one signal receiver. Each transmitter is a solenoid of finite length, and/or each receiver is a toroid coil.

Claims

1. An apparatus of the marine and onshore controlled source electromagnetic survey, comprising at least one signal transmitter and at least one signal receiver, wherein each transmitter is a solenoid of finite length each.

2. The apparatus as claimed in claim 1, wherein each solenoid is cored with high magnetic permeability material to enhance the transmitting power of the solenoid.

3. The apparatus as claimed in claim 1, wherein each receiver is a toroid coil.

4. The apparatus as claimed in claim 3, wherein each toroid coil is cored with high magnetic permeability material to enhance the signal strength from the toroid coil.

5. The apparatus as claimed in claim 1, wherein the transmitting current waveform using pulses, ramped steps, sinusoidal or steps in certain or random frequencies, or half sinusoidal.

6. A method of the marine and onshore controlled source electromagnetic survey by using at least one signal transmitter and at least one signal receiver, wherein each transmitter is a solenoid of finite length.

7. The method as claimed in claim 6, wherein each solenoid is cored with high magnetic permeability material to enhance the transmitting power of the solenoid.

8. The method as claimed in claim 6, where in each receiver is a toroid coil.

9. The method as claimed in claim 8, wherein each toroid coil is cored with high magnetic permeability material to enhance the signal strength from the toroid coil.

10. The method as claimed in claim 6, wherein the transmitting current waveform using pulses, ramped steps, sinusoidal or step in certain or random frequencies, or half sinusoidal.