Method and apparatus for seismic imaging with vsp while-drilling and well-driven

An apparatus for seismic imaging with VSP while-drilling VSP and well-driven, the apparatus comprising:

• a data acquisition module configured to acquire a seismic data processing result and logging data within a processing area range corresponding to a target well;
• an optimization and adjustment module configured to optimize and adjust the seismic data processing result and the logging data to obtain anisotropic parameters for pre-stack depth migration;
• a VSP-driven correction module configured to update a seismic velocity of the target well with a Vertical Seismic Profile (VSP) velocity as a constraint to obtain updated anisotropic velocities;
• an iterative optimization module configured to perform, based on the anisotropic parameters, iterative optimization on a VSP-driven corrected seismic velocity field to obtain an iteratively optimized seismic velocity field and an iteratively optimized anisotropic parameter field;
• a migration module configured to migrate a pre-stack depth migration volume using the iteratively optimized seismic velocity field and the iteratively optimized anisotropic parameter field to obtain a migration result;
• a post-stack frequency enhancement refinement module configured to perform post-stack frequency enhancement refinement on the migration result to obtain a migration result after the post-stack frequency enhancement refinement;
• and
• an imaging position determination module configured to determine, according to the migration result after the post-stack frequency enhancement refinement, an imaging position of the target well at a target reservoir with a maximum probability.

A computer device, comprising:

• a memory;
• a processor;
• and
• a computer program stored in the memory and executable on the processor, wherein when executing the computer program, the processor implements a method for seismic imaging with VSP while-drilling and well-driven,
• wherein the method for seismic imaging with VSP while-drilling and well-driven comprises:
• acquiring a seismic data processing result and logging data within a processing area range corresponding to a target well;
• optimizing and adjusting the seismic data processing result and the logging data to obtain anisotropic parameters for pre-stack depth migration;
• updating a seismic velocity of the target well with a Vertical Seismic Profile (VSP) velocity as a constraint to obtain updated anisotropic velocities;
• performing, based on the anisotropic parameters, iterative optimization on a VSP-driven corrected seismic velocity field to obtain an iteratively optimized seismic velocity field and an iteratively optimized anisotropic parameter field;
• migrating a pre-stack depth migration volume using the iteratively optimized seismic velocity field and the iteratively optimized anisotropic parameter field to obtain a migration result;
• performing post-stack frequency enhancement refinement on the migration result to obtain a migration result after the post-stack frequency enhancement refinement;
• and
• determining, according to the migration result after the post-stack frequency enhancement refinement, an imaging position of the target well at a target reservoir with a maximum probability.