Comparative analysis of the characteristics of the fracture systems of the Yaojia and Quantou Formations in the X Oilfield

Institute of Geology, No. 4 Oil Production Plant, Daqing Oilfield Co., Ltd.) 163000 China

Abstract

With the gradual industrial development of the Fuyu oil formation in the X oilfield and the frequent occurrence of set losses in the stratigraphic parts of the Nengjiang Formation, the importance of the overall characterisation of the fracture system has increased significantly. By establishing an integrated model of the fracture system from the Nengjiang Formation to the Quantui Formation, research work such as batch extraction of fracture elements and comparative analysis of the characteristics of the fracture system in the X Oilfield was carried out. The study shows that the Yaojia Formation to Quantou Formation fault system, vertically, has a multi-phase fault inheritance relationship; when the faults formed at a later stage develop, the faults formed at an earlier stage are revived again and grow together with the later faults, and the development pattern of the present-day faults is the result of multiple phases of tectonic movements and the cumulative development of faults.