Abstract: Based on measured stress data, integrating 2D finite element regression with fast lagrangian analysis of continua and multivariate regression, the tectonic tress field of studied area can be calculated. Taking a field block as an example, its tectonic stress regression analysis shows that the calculated results are in good agreement with the measured data and the conclusions from analyses of tectonic geology and petroleum geology. This method can be as reference to petroleum exploration and development.

Key words: tectonic stress field, regression analysis, reverse analysis, numerical simulation