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Fracture Optimization Applying a Novel Traceable Proppant and a Refined Mechanical Earth Model in the Congo Onshore

Fracture stimulation has been adopted as an integral part of the completion in the M'Boundi field given the results achieved in enhancing well productivity, as well as the positive impact realized on field development economics. The fracturing process has been optimized over the years through improved reservoir understanding and ensuing implementation of technologies to address the uncovered challenges. Changes to the fracturing fluid formulation to prevent damaging the water sensitive reservoir rock, as well as modified proppant schedules to mitigate proppant embedment are examples of this improvement process.

This paper describes the successful ongoing process of optimizing hydraulic fracturing designs in M'Boundi field. By applying an integrated approach combining various technologies, it was possible to better understand fracture propagation and coverage of the target reservoir. Implementation of a novel non-radioactive traceable proppant allowed accurate frac height measurement at the wellbore. When combined with rocks mechanics derived from sonic logs it led to redefining the mechanical earth model and ultimately the completion and fracturing strategy in the field. The process will be illustrated with examples from a 3-well campaign recently executed onshore Congo.

Author(s): R. Perfetto: Eni, F. Martocchia: Eni Congo, R.L. Ceccarelli: Eni E&P, R. Lorefice: Eni E&P, F. Rinaldi: Eni E&P, L. Tealdi: Eni E&P, P. Dalmasso: Eni Congo, P. Saldungaray: CARBO Ceramics Inc.

Paper Number: IPTC-16581-MS

URL: https://www.onepetro.org/conference-paper/IPTC-16581-MS


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