Optimizing the design of injection processes in sand control (i.e., conventional gravel pack and frac-pack) and stimulated completions as well as in injection wells has been a primary goal in selecting methods to improve cost and operational efficiency. It is well accepted that perforating with shaped-charge jet explosives has had a large impact on the efficiency of oil and gas completions in cased wells. However, accurate predicting of the impact of different perforating systems or operations can be difficult, as there are many variables in the process that can not be easily quantified; therefore, modeling the detailed physics of the process is complex.

This paper examines perforating as it relates to injection wells and/or injection processes. Experiments using field shaped-charge explosives were conducted under a variety of conditions with different cores to quantify injectivity compared to productivity. Results from the laboratory experiments were then compared to field data for validation. New knowledge and insights are gained to better understand and to optimize the design of injection processes in sand control completions and completion processes in injection wells.

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