Abstract

Asphaltene precipitation and deposition may cause formation damage in conventional reservoirs. In shale and tight reservoirs, pore and throat sizes are smaller than those in conventional reservoirs. This problem could be more serious in shale and tight reservoirs. This chapter is dedicated to the asphaltene precipitation and deposition in a huff-n-puff process. Experimental results and numerical analysis are presented. The mechanisms of asphaltene deposition are discussed. Effect of asphaltene deposition on huff-n-puff optimization is also discussed.

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