caa a22 4500 606226451 CHVBK 20210128101153.0 cr unu---uuuuu 210128e20150501xx s 000 0 eng 10.1007/s10553-015-0590-0 doi (NATIONALLICENCE)springer-10.1007/s10553-015-0590-0 A Model of the Fractal Fluid Loss Coefficient and its Effect on Fracture Length and Well Productivity [Elektronische Daten] [Guofa Ji, Zhaozhong Yang, Xiaogang Li, Yanjun Lu, Dan Luo] Loss of the fracturing fluid in hydraulic fracturing is a complex flow process that impacts the effectiveness of the technology, affecting such factors as fracture length and gas-well productivity. Many computational models have been constructed for the fluid loss coefficient, but the models do not account for the fractal character and tortuosity of the porous medium. This study considers these two parameters and proposes a fractal model to calculate the fluid loss coefficient. Fractal permeability is calculated based on the capillary-pressure curves of nine core samples. The permeability values based on fractal theory agree well with the measured values. The fluid loss coefficient determined by the fractal model is higher than the coefficient obtained by standard calculations because of high tortuosity of the porous medium. Predictions of fracture length and gas-well productivity, which depend on the fluid loss coefficient, are discussed and compared, and it is suggested that accurate determination of this coefficient is essential for optimizing hydraulic fracturing. Springer Science+Business Media New York, 2015 fractal theory nationallicence fluid loss coefficient nationallicence fracture length nationallicence gas well productivity nationallicence Ji Guofa State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Ghengu, China aut Yang Zhaozhong State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Ghengu, China aut Li Xiaogang State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Ghengu, China aut Lu Yanjun State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Ghengu, China aut Luo Dan State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Ghengu, China aut Chemistry and Technology of Fuels and Oils Springer US; http://www.springer-ny.com 51/2(2015-05-01), 168-180 0009-3092 51:2<168 2015 51 10553 https://doi.org/10.1007/s10553-015-0590-0 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10553-015-0590-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ji Guofa State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Ghengu, China aut NATIONALLICENCE 700 1- Yang Zhaozhong State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Ghengu, China aut NATIONALLICENCE 700 1- Li Xiaogang State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Ghengu, China aut NATIONALLICENCE 700 1- Lu Yanjun State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Ghengu, China aut NATIONALLICENCE 700 1- Luo Dan State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Ghengu, China aut NATIONALLICENCE 773 0- Chemistry and Technology of Fuels and Oils Springer US; http://www.springer-ny.com 51/2(2015-05-01), 168-180 0009-3092 51:2<168 2015 51 10553