17959214. METHOD FOR ITERATIVE FIRST ARRIVAL PICKING USING GLOBAL PATH TRACING simplified abstract (Saudi Arabian Oil Company)

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METHOD FOR ITERATIVE FIRST ARRIVAL PICKING USING GLOBAL PATH TRACING

Organization Name

Saudi Arabian Oil Company

Inventor(s)

Dongliang Zhang of Khobar (SA)

Constantinos Tsingas of Dhahran (SA)

Tong Wang Fei of Dhahran (SA)

Mohammed S. Mubarak of Dhahran (SA)

Hong Liang of Katy TX (US)

METHOD FOR ITERATIVE FIRST ARRIVAL PICKING USING GLOBAL PATH TRACING - A simplified explanation of the abstract

This abstract first appeared for US patent application 17959214 titled 'METHOD FOR ITERATIVE FIRST ARRIVAL PICKING USING GLOBAL PATH TRACING

Simplified Explanation

The abstract describes systems and methods for automated first arrival picking in seismic datasets. Here is a simplified explanation of the patent application:

  • Obtaining a seismic dataset with multiple seismic gathers.
  • Determining a pilot for each gather, which includes positions for first arrivals.
  • Creating a preconditioned gather using the pilot.
  • Determining a differential pilot using global path tracing.
  • Incrementing the pilot to create a total picked first arrival.
  • Determining a final picked first arrival based on the total picked first arrival.
  • Determining a seismic velocity model from the final picked first arrival using tomographic inversion.
  • Creating a seismic image using the seismic velocity model and the seismic dataset.

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      1. Potential Applications
  • Oil and gas exploration
  • Seismic imaging for geological studies
      1. Problems Solved
  • Automating the process of picking first arrivals in seismic datasets
  • Improving accuracy and efficiency in seismic data analysis
      1. Benefits
  • Faster and more accurate interpretation of seismic data
  • Enhanced understanding of subsurface structures
      1. Potential Commercial Applications
        1. Optimizing Seismic Data Analysis for Oil and Gas Exploration

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      1. Possible Prior Art

No prior art is known at this time.

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        1. Unanswered Questions
      1. How does this automated first arrival picking method compare to traditional manual picking methods in terms of accuracy and efficiency?

The article does not provide a direct comparison between the automated method and traditional manual picking methods.

      1. Are there any limitations or challenges associated with implementing this automated first arrival picking system in real-world seismic data analysis scenarios?

The article does not address any potential limitations or challenges that may arise during the implementation of this technology.


Original Abstract Submitted

Systems and methods for automated first arrival picking are disclosed. The method includes obtaining a seismic dataset composed of a plurality of seismic gathers and determining a pilot for each gather, where the pilot includes a position on an ordinate axis for each seismic trace representing a first arrival. The method continues iteratively until a stopping criterion is met by creating a preconditioned gather using the pilot, determining a differential pilot using global path tracing subject to a constraint and incrementing the pilot using the differential pilot to create a total picked first arrival. Once the stopping criterion has been met, the method further includes determining a final picked first arrival based on the total picked first arrival, determining a seismic velocity model from the final picked first arrival using a tomographic inversion and creating a seismic image using the seismic velocity model and the seismic dataset.

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