Method for selective bandlimited data acquisition in subsurface formations
AssigneeSeispec, L.L.C.
InventorsJeff L. Love, Charles Puryear
Life of this patent
Estimating the term…
Abstract
The method for exploring desired characteristics of a subsurface sector, having at least one resonant frequency, is based on selectively transmitting suitable narrowband energy waves into the subsurface sector, thereby producing narrowband signals reflected off the subsurface sector. The transmitted narrowband energy waves can be selectively and optimally adjusted in real time so as to provide optimum illumination of the desired characteristics from the explored sector.
Claims5
A method of seismic data acquisition for imaging seismic characteristics of at least one subsurface target sector of interest having at least one resonant frequency, comprising:
- a) sequentially transmitting multiple seismic narrowband energy waves through underground strata into the target sector of interest;
- b) receiving corresponding sector-reflected seismic narrowband energy waves;
- and
- c) using the sector-reflected narrowband energy waves for inducing the transmitted narrowband energy waves to approach a naturally occurring resonant response of the target sector of interest, wherein the naturally occurring resonant response is based on reflections off interfaces of the target sector of interest with other sectors;
- and
- d) using at least one narrowband selected on the basis of matching the target resonant response for imaging the seismic characteristics.
Dependencies are inferred from the claim text.