Carbo Ceramics

Technical Paper

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

Abstract

Fracture stimulation has been adopted as an integral part of the completion inthe M'Boundi field given the results achieved in enhancing well productivity,as well as the positive impact realized on field development economics. Thefracturing process has been optimized over the years through improved reservoirunderstanding and ensuing implementation of technologies to address theuncovered challenges. Changes to the fracturing fluid formulation to preventdamaging the water sensitive reservoir rock, as well as modified proppantschedules to mitigate proppant embedment are examples of this improvementprocess.
This paper describes the successful ongoing process of optimizing hydraulicfracturing designs in M'Boundi field. By applying an integrated approachcombining various technologies, it was possible to better understand fracturepropagation and coverage of the target reservoir. Implementation of a novelnon-radioactive traceable proppant allowed accurate frac height measurement atthe wellbore. When combined with rocks mechanics derived from sonic logs it ledto redefining the mechanical earth model and ultimately the completion andfracturing strategy in the field. The process will be illustrated with examplesfrom a 3-well campaign recently executed onshore Congo.

Authors: R. Perfetto (eni E&P) | P. Saldungaray (CarboCeramics) | 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)

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