Reservoir Characterization

Our advanced geophysical skills and tools ensure that you receive the most complete and accurate assessment of your resources. Sproule’s geophysicists conduct seismic studies in close collaboration with other geoscience and reservoir engineering disciplines to enhance resource/reserve assessments and evaluation work or to provide independent interpretive services.

Custom studies and evaluations can be undertaken, from large-scale basin analysis to detailed reservoir mapping. These are enhanced through advanced Mistie and grid balancing, well log calibration to seismic data, integrated 2D/multiple-3D interpretation, advanced 3D visualization, complex structural mapping, seismic trace, and horizon and interval-based attribute analysis.

From single well to field-wide studies, Sproule’s technology, experience and expertise extract maximum value from data to optimize your understanding of the reservoir. Our petrophysical knowledge stems from the analysis of thousands of wells in the majority of the sedimentary basins in the world. Our flexible and comprehensive interpretation system can process and integrate logs, test results, core data, and other inputs. We work with you to acquire new data and collate existing data in a single well, multi-well, and field-wide studies.

Our petrophysicists, geologists, and engineers collaborate to deliver comprehensive and integrated analysis and interpretation including, but not limited to, routine parameters such as effective porosity and water saturation, or unified petrophysical models containing flow unit characterization, permeability and saturation models.

Sproule’s geoscience team has unique skills in basin-modelling which tells a more holistic story. Hydrocarbon generation history is the product of the complex interplay between several variables such as lithology, sedimentation/burial rate, erosion, heat flow, and organic matter kinetics. A burial history simulation that includes these parameters can reveal the net effect of their interactions to predict the timing and extent of petroleum generation and entrapment in sedimentary basins.

When an accurate, high-resolution geological model of reservoir structure and stratigraphy is needed, our geo-modelling team works with our geological, petrophysical and geophysical experts to integrate all aspects of the reservoir into one static model or multiple geo-statistical realizations of a model. We can create a digital snapshot of the reservoir’s architecture.

Tools and products include:

• Variogram analysis: used to understand and describe the spatial variation of a property
• Surface prediction and error-modelling: stochastic time-depth conversions provide realistic estimates for the depth conversion uncertainty
• Threshold mapping: probability maps are generated to predict where mapped property values exceed critical thresholds

Reservoir simulation is complex and must be implemented and monitored by an experienced, multi-disciplinary team. Sproule experts use numerical reservoir simulation to build a dynamic model to predict how liquids and gases will flow through a reservoir once production starts and how this will change over time.

By integrating geological models, flow models, and well models, Sproule can forecast production and identify when and where stimulation might be necessary. Sophisticated simulations help determine the optimum development plan for a reservoir—whether it is already developed or yet to produce.

The efficiency of delivery is essential; our pipeline modelling involves the construction of a computer model that incorporates many factors along the flow path of the fluids, from the wellhead, through to facilities and ultimately to the sales delivery point(s). Once built, the model is calibrated to match a snapshot of recently measured flows and pressures in the system. It is a predictive tool that can be used to locate and alleviate bottlenecks in the system.