Fracture sequence in folded carbonates: a long and complex history of reservoir properties

Summary Fractures in folded carbonate layers are sampled along a scan-line, such as an “Along Well Measure Depth”. We deciphered 11 types of brittle structures (stylolites, joints, tension-gashes, faults) which are relatively date as pre-, syn- and post folding. Brittle stages are plot on the loading path and at each step we characterize the reservoir properties and Nelson reservoir type. With burial, the reservoir would evolve from type I to type II. Then, the tectonic inversion trigger fractures and faults which increased and decreased the fracture and matrix contribution respectively The data-base is shown like a well data-set what allows challenging and calibrate the structural analysis performable from a well.