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Article

Patent Analysis on the Development of the Shale Petroleum Industry Based on a Network of Technological Indices

Department of Energy Resources Engineering, Inha University, 100 Inharo, Nam-gu, Incheon 22212, Korea
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Author to whom correspondence should be addressed.
Energies 2020, 13(24), 6746; https://doi.org/10.3390/en13246746
Received: 2 November 2020 / Revised: 15 December 2020 / Accepted: 16 December 2020 / Published: 21 December 2020
(This article belongs to the Special Issue Development of Unconventional Reservoirs 2020)
This study investigated the technological developments in the shale petroleum industry by analyzing patent data using a network of technological indices. The technological developments were promoted by the beginning of the shale industry, and after the first five years, it showed a more complex development pattern with the convergence of critical technologies. This paper described progress in the shale petroleum technologies as changes in relatedness networks of technological components. The relatedness represents degree of convergence between technological components, and betweenness centrality of network represents priority of technological components. In the results, the progress of the critical technologies such as directional drilling, increasing permeability, and smart systems, were actively carried out from 2012 to 2016. Especially, unconverged technology of increasing permeability and the converged technology of directional drilling and smart system has been intensively developed. Some technological components of the critical technologies are more significant in the form of converged technology. View Full-Text
Keywords: shale gas; tight oil; shale petroleum; technological development; patent; network analysis shale gas; tight oil; shale petroleum; technological development; patent; network analysis
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MDPI and ACS Style

Kim, J.-H.; Lee, Y.-G. Patent Analysis on the Development of the Shale Petroleum Industry Based on a Network of Technological Indices. Energies 2020, 13, 6746. https://doi.org/10.3390/en13246746

AMA Style

Kim J-H, Lee Y-G. Patent Analysis on the Development of the Shale Petroleum Industry Based on a Network of Technological Indices. Energies. 2020; 13(24):6746. https://doi.org/10.3390/en13246746

Chicago/Turabian Style

Kim, Jong-Hyun, and Yong-Gil Lee. 2020. "Patent Analysis on the Development of the Shale Petroleum Industry Based on a Network of Technological Indices" Energies 13, no. 24: 6746. https://doi.org/10.3390/en13246746

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