Abstract: The genesis analysis of structural geology plays an important role in the oil and gas field development. Based on the research
advances in China and abroad, the advantages and disadvantages of the study in this field are compared in detail. There are eight
research directions in general. First, the structural geological genesis of fault system is determined through the analysis of structural
evolution history and stress field. Second, the genesis of geological structure was analyzed by means of detailed structural
interpretation. Third, explore and improve the research methods of structural geological genesis. Fourth, the geological genesis analysis
of reservoir is carried out based on comprehensive dynamic and static data. Fifth, structural geological genesis is studied by close
combination with sedimentary facies research and diagenesis research. Sixth, application of metallogenic analysis results should be
strengthened to provide a basis for the development of oil and gas fields. Seventh, microfracture characterization and modeling. Eighth,
microstructural geological genesis analysis. Methods of structural geological genesis analysis in oil and gas field development mainly
include: basic geological research, field description of outcrop observation, core observation and description, microscopic thin-section
observation, physical simulation, well logging, seismic interpretation, geochemical analysis and testing, geological modeling, dynamic
monitoring and dynamic analysis of production. The advantages and disadvantages of each method are analyzed based on case studies.
On this basis, it is concluded that there are eight main issues and eight future research directions in the study of the genesis of
structural geology in the oil and gas field development.

Key words: oil-gas field development, structure, geological origin of structure, fracture, microstructure, residual oil