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The Armatella Field in SE Sicily is structurally complex with two fractured, carbonate reservoirs containing heavy-oils, with the heavier hydrocarbon overlying the lighter one. One well has been drilled in the field – a vertical pilot completed with two opposite, stacking, open-hole horizontal drains. A complex compositional evolution of the fluids produced has been observed. A reservoir study integrating geophysics, geochemistry, petrophysics and reservoir engineering assessed the reservoir geometry and the field production behaviour. This allowed the identification of two different phases of hydrocarbon migration that were geologically constrained according to the structural evolution of SE Sicily. The 3D structural reconstruction of the field, built with a Shared Earth Model, was utilized as input to a 3D dual porosity numerical model. The dynamic simulation allowed identification of the drilling location of an additional non-conventional well aimed at draining undeveloped reserves. The study used advanced laboratory methodologies for fluid characterization, state-of-the-art methods for analysing the reservoir fracture network and properly designed modules for simulating non-conventional completions in a 3D dynamic model.

Purpose:To investigate the effect of thermocycling on bond strength of two dual-curing composites, used in the adhesive cementation of posts, as a function of the distance from the CEJ. Methods and materials: 24 single-rooted teeth recently extracted for periodontal reasons were cut at the CEJ, endodontically treated and a 8-mmdeep post spacewasmade in each specimen. For the test a single kind of composite fiberreinforced post was chosen: Relyx Fiber Post size 2. Teethwere randomly split into two groups (n=12), and posts were luted using two resin composites: Multilink Automix (group A – control) and RelyX Unicem 2 Automix (group B – self-adhesive). The composite was cured for 120 s with a 400mW/cm2 light curing unit. The samples were subjected to thermocycling (5000 cycles in distilled water, 5–55 ◦C, with a dwell time of 30 s in each). Than samples were cut, perpendicularly to the long axis, in 2mm-thick slices starting from the CEJ to the apex. Subsequently the sections corresponding to 1mm, 3mm, 5mm underwent a push-out test to evaluate the resistance to the displacement of the post. Results: The statistical analysis (ANOVA, Tukey’s, p

F-06 ARMATELLA FIELD - AN EXAMPLE OF A MULTI-DISCIPLINARY INTEGRATED APPROACH TO A RESERVOIR STUDY 1 L. RUVO A. ALDEGHERI R. GALIMBERTI E. NEMBRINI L. ROSSI and R. RUSPI ENI Agip division Via Emilia 1 20097 S. Donato Milanese MI Italy Summary This abstract shows how a multi-disciplinary integrated project team was able to solve the problems related to the behaviour of a faulted structurally complex and fractured reservoir characterized by different dynamic equilibria related to two heavy oil accumulations. Special studies (seismic geochemical fracturation analysis) focused to better define the internal geometry of the reservoirs and identify the oil