Through long-term research practice, a series of advanced and applicable seismic data processing and interpretation technologies and comprehensive research methods have been formed, which have been widely used in the exploration and development of complex oil and gas reservoirs, such as fine structural interpretation, fine trap description, lateral reservoir prediction, hydrocarbon detection, fracture and cave prediction, etc.

 

I. High-precision seismic data processing technology

1. High-precision static correction technology

       According to the near-surface structural characteristics of different oil and gas fields and the analysis of various static correction methods, the multi-static correction combination processing technology is used to better solve the static correction problem of seismic data in mountainous, desert and Gobi areas.

 

2. High-fidelity noise suppression technology

      Removing the noise of seismic data with high fidelity is the prerequisite for improving the reliability of reservoir prediction.

 

3. High-resolution processing technology

       Through a series of high resolution processing techniques, the quality and resolution of seismic data have been significantly improved.

4. Pre-stack migration technology

      It can optimize the velocity field analysis technology, accurately calculate the interval velocity, and perform prestack time migration and prestack depth migration of seismic data.

 

II. Comprehensive interpretation technology of seismic data

1. High-precision reservoir inversion technology

     Reservoir inversion is an effective means to identify and interpret lithologic traps. The reservoir prediction idea of prestack and poststack joint inversion is adopted, and corresponding reservoir inversion methods are adopted for various complex reservoirs (clastic rock, carbonate rock, volcanic rock, etc.).

2. Hydrocarbon detection technology

      According to the response characteristics of the reservoir after containing fluid, for different reservoirs, on the basis of forward modeling and attribute analysis of seismic traces near wells, the detection method of prestack and poststack joint identification of oil and gas is used.

3. Crack comprehensive research technology

       Fracture research is the key and difficult point in the development of many oil and gas fields at present. After years of accumulation of technical experience, a set of effective methods for comprehensive study of fractures has been formed.

 

4. Reservoir information fusion analysis technology

 

III. Analysis of typical application examples

1. Research on carbonate reservoir in an oilfield

2. Research on the tight clastic rock reservoir of a complex surface in an oilfield