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The combined reservoir rock and fluid data sets are used by operating companies to determine the production potential of the reservoir and the perforation, stimulation, and production programs that will be most effective. 

Tight-oil reservoirs differ greatly from one another in their petrophysical compositions and hydrocarbon content. For example, the Bakken formation is very different from the Eagle Ford shale. Therefore, customized strategies based on the core analysis and reservoir fluids data are critical to optimizing daily hydrocarbon flow and maximizing the ultimate total recovery of crude oil and other hydrocarbons from each distinct reservoir. 

## PRODUCTION ENHANCEMENT SERVICES 

Based on reservoir rock and fluids data sets from thousands of feet of core, Core Lab has developed numerous technolo- gies, products, and services to enhance production from tight-oil reservoirs. They are proving very effective in Bakken, Eagle Ford, and Permian Basin reservoirs. 

This is especially the case for multi-staged, multi-well simultaneous fracture programs in which multiple wells in close proximity are fractured together in multiple stages. Here Kodiak ™  perforating charges and gun systems are used along with ZeroWash ® , SpectraStim ™ , SpectraScan ® , and SpectraChem ®  fracture diagnostic services. Core’s new FlowProfiler ™  tech- nology is then used to determine which fracture stages are flowing crude oil and to measure flow volumes. 

Kodiak perforating charges are one of Core’s newest technologies being applied to maximize the flow of crude oil from wells being drilled in tight-oil reservoirs. Unlike conventional perforating charges that have limited depth of formation penetration and leave signifi- cant debris in the perforation tunnel, Kodiak charges continue to meet Core’s highest engineering design expectations by achieving exceptional formation penetration and producing minimal perforating debris (Figures 5 and 6). 

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