Method for measuring the water bottom reflectivity

Details Method for measuring the water bottom reflectivity Method for measuring the water bottom reflectivity

G - Physics

01

V

G01V 1/38 (2006.01) G01V 1/28 (2006.01)

Patent

CA 2225504

The two-way water-layer travel time, ~, is derived from dual-mode seismic sensor data by cross-correlating the Fourier transforms of the sum and difference of the velocity and pressure signatures. The Z-transform of ~ evaluates one of the two Backus variables, Zw. The second variable is Rb, the water bottom reflectivity coefficient. The frequency-domain transforms of the above summed and differenced signatures are each multiplied by the Backus operator (1+RbZw)2 after initializing Rb and the products are iteratively cross-correlated until the correlation function converges to a minimum. Rb is perturbed after each iteration. The value of Rb upon convergence is the local water bottom reflectivity coefficient.

Le temps de traversée d'une couche d'eau dans les deux sens, , est obtenu à partir de capteurs sismiques bimode en corrélant les transformées de Fourier de la somme et de la différence des signatures de vitesse et de pression. La transformation en Z de permet d'évaluer l'une des deux variables de Backus, Zw. La seconde variable est Rb, le coefficient de réflectivité du fond de l'eau. Les transformées fréquentielles des signatures somme et différence ci-dessus sont multipliées chacune par l'opérateur de Backus (1 + RbZw)2 après l'initialisation de Rb et les produits sont soumis à des corrélations itérées jusqu'à ce que la fonction de corrélation converge vers un minimum. Rb est perturbé après chaque itération. La valeur de convergence de Rb est le coefficient de réflectivité local du fond de l'eau.

Affiliated with

Also associated with

Rating

Method for measuring the water bottom reflectivity does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for measuring the water bottom reflectivity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for measuring the water bottom reflectivity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1732593