Seismic surveying
First Claim
1. A method of seismic surveying which utilizes a seismic waveguide in the earth wherein a first region is defined as the region within the waveguide and a second region is defined as the region outside of the waveguide, the method consisting of generating seismic energy by means of one or more energy sources situated in one of said regions;
- detecting seismic energy which leaks by energy coupling from one of said regions to the other of said regions;
detecting seismic energy by means of one or more transducers in the other of said regions and analyzing the detected seismic energy to locate localized deviations in the planarity of the waveguide which give rise to said energy coupling.
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Accused Products
Abstract
A method of seismic surveying uses seismic waveguides in the earth. Seismic energy is transmitted from outside the waveguide and detected within the waveguide or vice-versa. Coupling of energy between the outside and the inside of the waveguide is effected by energy leakage at coupling sites where the waveguide departs from planarity. The method analyzes seismic signals to determine the position and nature of coupling sites and the propagation characteristics of the waveguide.
73 Citations
17 Claims
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1. A method of seismic surveying which utilizes a seismic waveguide in the earth wherein a first region is defined as the region within the waveguide and a second region is defined as the region outside of the waveguide, the method consisting of generating seismic energy by means of one or more energy sources situated in one of said regions;
- detecting seismic energy which leaks by energy coupling from one of said regions to the other of said regions;
detecting seismic energy by means of one or more transducers in the other of said regions and analyzing the detected seismic energy to locate localized deviations in the planarity of the waveguide which give rise to said energy coupling. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- detecting seismic energy which leaks by energy coupling from one of said regions to the other of said regions;
Specification