Patent Document ID: 9182509
Application ID: 13002682
Patent Status: 1

Claim One:
1. A method comprising: obtaining a surface seismic survey of a subsurface formation by processing reflected acoustic waves generated by one or more subsurface seismic reflectors, each subsurface seismic reflector having a depth; obtaining a density measurement and a sonic velocity measurement of a subsurface layer using one or more tools connected to a wired drill string positioned within a wellbore wherein said tools are selected from the group consisting of LWD tools, MWD tools, near-bit tools, on-bit tools and wireline configurable tools; estimating an acoustic impedance of the subsurface layer based on the density measurement and the sonic velocity measurement provided by the one or more tools; generating a synthetic seismic survey derived from the acoustic impedance; comparing the synthetic seismic survey to the surface seismic survey wherein the acoustic impedance is iteratively changed until the synthetic seismic survey matches the surface seismic survey within a predetermined threshold and the surface seismic survey is calibrated in actual depth using the synthetic seismic survey that matches the surface seismic survey and the depth of the one or more subsurface seismic reflectors; and adjusting a wellbore operation or an operating parameter based on the calibrated surface seismic survey.