The fracture prediction in M carbonate oilfield

M carbonate oil field is located in Zagros low angle belt. Having experienced multi-period tectonic movement, the fracture system and the fracture scale of the belt are extremely complex. The structural fracture has formed the good reservoir space. Therefore, the reservoir fracture prediction is the key to effectively develop the M carbonate reservoir. According to the characteristics of M carbonate reservoir, this paper puts forward a set of fracture prediction methods based on the post-stack and pre-stack seismic data. Firstly, we apply post-stack seismic data to simulate stress field and analyze the fracture-developed zones quantitatively; secondly, apply AVAZ analysis to pre-stack seismic data and identify fracture density as well as the orientatation. Finally, reasonably verify the result of fracture by production wells. This research leads a detailed analysis for fracture reservoirs in the studied area, which in turn unveils the fracture development rules and spatial distribution characteristics. Therefore, it provides a certain guide for future oil and gas development.