Flow Efficiency and Erosion Characteristics of Internally Coated Tubing in CHOPS Wells

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Based in Nisku, Hilong Petropipe Company Ltd. provides a variety of pipe coating options designed to prevent the internal surfaces of drill pipes and oil tubing against downhole erosion and abrasion, as well as reduce the friction and turbulence, thus enhancing flow efficiency in oil wells. Despite the overall good feedback from the customers on the coating service, some customers have reported some difficulty for the coated oil tubing to meet the production requirements in Cold Heavy Oil Production with Sand (CHOPS) wells. Because Hilong's tubing coatings are designed to be used in conventional light-oil wells, it is questionable if they perform equally well in Canadian CHOPS wells. The overall objective of this study is to primarily evaluate the performance of Hilong' internal coatings in CHOPS wells through examining the flow efficiency of sand-laden heavy oil in these coated tubing. The research results from this project help Hilong to develop new coating products that perform better for CHOPS wells.