Analogous processing of modeled and measured marine survey data

A method, comprising:

• noise independent processing of measured marine survey data by a machine;
• data dependent or noise dependent processing of the measured marine survey data by the machine;
• noise independent processing of modeled marine survey data analogously to the noise independent processing of the measured marine survey data by the machine;
• and
• data dependent or noise dependent processing of the modeled marine survey data analogously to the data dependent or noise dependent processing of the measured marine survey data by the machine;
• wherein processing the modeled marine survey data analogously to the measured marine survey data reduces a misfit between the processed measured marine survey data and the processed modeled marine survey data that would otherwise be caused by processing the measured marine survey data without analogously processing the modeled marine survey data;
• calculating the misfit between the processed measured marine survey data and the processed modeled marine survey data by the machine;
• iteratively updating, by the machine, a value of a model parameter based on the misfit between the processed measured marine survey data and the processed modeled marine survey data and reprocessing the modeled marine survey data with the updated value of the model parameter until the misfit is within a misfit threshold;
• and
• producing, by the machine, a spatial distribution of the updated value of the model parameter as a map of the subsurface location to better predict a nature or location of hydrocarbons associated with the subsurface location.

A non-transitory machine-readable medium storing instructions, which when executed by a processing resource, cause the processing resource to:

• model marine survey data based on initial model parameters;
• apply noise independent processing to measured marine survey data;
• apply data dependent or noise dependent processing to the measured marine survey data;
• apply noise independent processing to modeled marine survey data analogously to the noise independent processing of the measured marine survey data;
• and
• apply data dependent or noise dependent processing to the modeled marine survey data analogously to the data dependent or noise dependent processing of the measured marine survey data;
• wherein processing the modeled marine survey data analogously to the measured marine survey data reduce a misfit between the processed measured marine survey data and the processed modeled marine survey data that would otherwise be caused by processing the measured marine survey data without analogously processing the modeled marine survey data;
• calculate the misfit between the processed measured marine survey data and the processed modeled marine survey data;
• in response to the misfit being outside of a misfit threshold:
• update at least one of the model parameters to reduce the misfit;
• remodel the marine survey data based on the updated model parameters;
• reprocess the modeled marine survey data and measured marine survey data analogously;
• and
• recalculate the misfit until the misfit is within the misfit threshold;
• and
• in response to the misfit being within the misfit threshold:
• report final model parameters;
• and
• produce a spatial distribution of the final model parameters as a map of a subsurface location to better predict a nature or location of hydrocarbons associated with the subsurface location.

A method of generating a geophysical data product, the method comprising:

• obtaining geophysical data;
• and
• processing the geophysical data to generate the geophysical data product, wherein processing the geophysical data comprises:
• noise independent processing of measured marine survey data;
• data dependent or noise dependent processing of the measured marine survey data;
• noise independent processing of modeled marine survey data analogously to the noise independent processing of the measured marine survey data;
• and
• data dependent or noise dependent processing of the modeled marine survey data analogously to the data dependent or noise dependent processing of the measured marine survey data;
• wherein processing the modeled marine survey data analogously to the measured marine survey data reduce a misfit between the processed measured marine survey data and the processed modeled marine survey data that would otherwise be caused by processing the measured marine survey data without analogously processing the modeled marine survey data;
• calculating the misfit between the processed measured marine survey data and the processed modeled marine survey data;
• updating a model parameter in the modeled marine survey data based on the misfit, wherein the model parameter comprises a parameter of a subsurface location to better predict a nature or location of hydrocarbons associated with the subsurface location;
• and
• producing a spatial distribution of the model parameter as a map of the subsurface location to better predict a nature or location of hydrocarbons associated with the subsurface location.