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- W2386001052 abstract "A study on the effect of drilling fluid on the pore throat structure is conducted using raw coals from Changzhi,Xiangshan and Baode and coal samples immersed in two drilling fluids for 48 hours.SEM photographing and low-temperature adsorptiondesorption isotherm show that the surface pores of coal have fractal characteristics,and the fractal dimension D of coals is easily obtained with nitrogen adsorption.Surface pores of coals are easily to be plugged by drilling fluid components on the one end of these pores,resulting in a separation between desorption curve and adsorption curve,thus forms a loop curve.For the coal sample from Changzhi,the two drilling fluids have minor effect on its surface roughness and fractal dimension.The surface of the coal sample from Baode becomes rough and the fractal dimension of this coal sample becomes greater in drilling fluid No.1,a KC1 mud.The No.2 drilling fluid,an octadecyltrimethyl ammonium chloride(OTAC) treated mud,has minor effect on the surface roughness and fractal dimension of all coal samples." @default.
- W2386001052 created "2016-06-24" @default.
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- W2386001052 date "2014-01-01" @default.
- W2386001052 modified "2023-09-24" @default.
- W2386001052 title "Study on the Effect of Drilling Fluid on Pore Throat of Coal Bed" @default.
- W2386001052 hasPublicationYear "2014" @default.
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