Journal
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
Volume 34, Issue 15, Pages 1426-1435Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/15567036.2010.529570
Keywords
drilling; feasibility analysis; fracturing; shale; shale gas; supercritical carbon dioxide
Funding
- Key Project of Chinese National Programs for Fundamental Research and Development (973 program) [2010CB226704]
- Chinese National Natural Science Foundation [51034007]
- CNPC [2011A-4205]
- China Postdoctoral Science Foundation [2011M500492]
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Supercritical CO2 (SC-CO2) fluid has the properties of low viscosity and high diffusion capacity near gas and higher density near liquid, so it showed great vitality at the beginning of its use in drilling technology at the end of the last century. This article analyzes the thermophysical properties of SC-CO2 fluid, and the properties of shale gas and reservoir are analyzed at different aspects of drilling and reservoir formation, while the characteristics of shale gas development are summarized also. Combining the characteristics of SC-CO2 fluid and shale gas reservoir exploitation, the feasibility of shale gas exploitation with SC-CO2 is demonstrated in detail. Meanwhile, the technical and economic superiorities of it are also analyzed. It is believed that the shale gas exploitation with SC-CO2 will achieve great success in economic and technical aspects, and it will provide much more clean energy and make a great contribution to protecting the environment.
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