Multi-stage hydraulic fracturing stimulation and completion programs now account for up to 70% of total well costs (Shokanov et al. 2019). Faced with unprecedented economic pressures on the entire oil and gas industry, upstream operations must take a serious look at increasing their efficiency regarding the use of completion money and ensuring that increased production results warrant the expenditure. Completion operations must develop systems and processes that deepen insight into complex reservoir performance, right-size well spacing, and focus on data-driven stimulation designs that optimize economics.
This paper highlights one such effort in the Tennessee Colony Field project in East Texas. A novel ultra-high-resolution nanoparticle tracer played a key role in delivering useful data that led to a comprehensive understanding of the reservoir response to stimulation efforts at a stage level. Additional multi-well studies in turn led to developing a full reservoir plan and optimizing well spacing.
The state-of-the-art ultra-high-resolution nanoparticle tracers were added before and after each diverter stage for flow profile mapping and diversion efficiency assessment. In addition, a sampling campaign of adjacent wells was initiated to identify potential communication between old and new wells. The tracers’ data integration with fracturing pressure diagnostics helped to improve the target reservoir development approach and provided a live performance flow profile for the entire field. This data was used to optimize completion and workover strategies, achieve the best well productivities, and significantly enhance the understanding of the reservoir geology for the entire field.
This paper describes the project results including the hydraulic fracturing pressure diagnostics with a multi-well tracer program integration. Since tracers were analyzed over several months from numerous wells, the operator has gained insight into continuous flow profiles leading to optimizing well performance on a regular basis as new production-diagnostic results are received.