Fractures Analysis in Lali Anticline, SW Iran

The Lali anticline is located about 60-Km northeast of Shushtar in SW Iran and in the Dezful embayment zone. In this research, subsurface data have been used for analysis of folding and fracturing mechanisms in the studied area. Due to presence of a thrust fault in the southern limb (forelimb) of Lali anticline, it is suggested that this anticline is a faultpropagation fold. Geometrical analysis methods, including inscribed circles analysis, derivative from subsurface structural maps, calculation axial curvature amount of reservoir structure and relative frequency of fractures method (RFF), are shown that the SW limb (forelimb) of the anticline has higher potential fracture density.