Fracture Study and Its Applied in Oil and gas Field Development

Abstract

Fracture, as an important factor affecting the quality of reservoirs, has always been one of the most crucial research contents in the process of oil and gas field development. The basis of research on fault systems in oil and gas field development was introduced from two aspects, namely, data foundation and research methods. The volcanic reservoir of the Yingcheng Formation in the Xudong Area of the Songliao Basin, the glutenite reservoir of the Lower Karamay Formation in a block in the northwestern margin of the Junggar Basin, and the heavy oil reservoir developed by thermal recovery in the Yulou Oil Bearing Sets in an experimental area in the western slope of the western depression of the Liaohe Basin, were taken as examples to elaborate the application of fault research in oil and gas field development from three aspects: design of volcanic gas reservoir development program, architecture analysis of glutenite reservoir, and fault systems in heavy oil reservoirs developed by thermal recovery. Based on these different Chinese examples, the difficulties and hot issues in the research of fault systems in oil and gas field development were discussed. The results show that the fine characterization of location, scale, and distribution law of faults and fractures, analysis of fault architecture of reservoirs, fine interpretation and modeling of faults, and evaluation of fault sealing property are closely related to the effective development of oil and gas fields; therefore, they should be given adequate attention in the process of oil and gas field development.