US 6,982,928 B2
Seismic P-wave velocity derived from vibrator control system
Mustafa Naser Al-Ali, Dhahran (Saudi Arabia)
Assigned to Saudi Arabian Oil Company, Dhahran (Saudi Arabia)
Filed on Feb. 17, 2004, as Appl. No. 10/781,130.
Claims priority of provisional application 60/464315, filed on Apr. 21, 2003.
Prior Publication US 2005/0041527 A1, Feb. 24, 2005
Int. Cl. G01V 1/28 (2006.01)
U.S. Cl. 367—54 33 Claims
OG exemplary drawing
 
11. A method of estimating P-wave velocity in a near-surface region of a land area, comprising:
a first step of gathering control data for the near-surface region;
a second step of gathering vibrator dynamic data generated in the near-surface region in response to vibrator action on the land area; and
a third step of estimating the P-wave velocity in response to both the control data and the vibrator dynamic data;
wherein the vibrator dynamic data includes at least one of ground stiffness data and ground viscosity data.