NDLI: Effects of Nozzle Configuration on Rock Erosion Under a Supercritical Carbon Dioxide Jet at Various Pressures and Temperatures

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Effects of Nozzle Configuration on Rock Erosion Under a Supercritical Carbon Dioxide Jet at Various Pressures and Temperatures

Content Provider	MDPI
Author	Huang, Man Kang, Yong Wang, Xiaochuan Hu, Yi Li, Deng Cai, Can Chen, Feng
Abstract	The supercritical carbon dioxide (SC-CO2) jet offers many advantages over water jets in the field of oil and gas exploration and development. To take better advantage of the SC-CO2 jet, effects of nozzle configuration on rock erosion characteristics were experimentally investigated with respect to the erosion volume. A convergent nozzle and two Laval nozzles, as well as artificial cores were employed in the experiments. It was found that the Laval nozzle can enhance rock erosion ability, which largely depends on the pressure and temperature conditions. The enhancement increases with rising inlet pressure. Compared with the convergent nozzle, the Laval-1 nozzle maximally enhances the erosion volume by 10%, 21.2% and 30.3% at inlet pressures of 30, 40 and 50 MPa, respectively; while the Laval-2 nozzle maximally increases the erosion volume by 32.5%, 49.2% and 60%. Moreover, the enhancement decreases with increasing ambient pressure under constant inlet pressure or constant pressure drop. The growth of fluid temperature above the critical value can increase the enhancement. In addition, the jet from the Laval-2 nozzle with a smooth inner profile always has a greater erosion ability than that from the Laval-1 nozzle.
File Size	4320256
File Format	PDF
e-ISSN	20763417
DOI	10.3390/app7060606
Journal	Applied Sciences
Issue Number	6
Volume Number	7
Language	English
Publisher Date	2017-06-12
Access Restriction	Open
Subject Keyword	supercritical carbon dioxide $(SC-CO_{2})$ jet nozzle configuration rock erosion erosion volume pressure and temperature conditions
Content Type	Text
Resource Type	Article

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