TY  - EJOU
AU  - Ping, Jingjing 

TI  - Spontaneous	Imbibition	Considering	Fractal	Theory	and	Dynamic	 Contact	Angle	in	Tight	Sandstone
T2  - The International Conference on Computational \& Experimental Engineering and Sciences

PY  - 2023
VL  - 25
IS  - 4
SN  - 1933-2815

AB  - In	 the	 process	 of	 tight	 oil	 reservoir	 development,	 there	 are	 a	lot	 of	 spontaneous	imbibition	 phenomena	
which	are	beneficial	to	achieving	the	purpose	of	enhancing	oil	recovery.	It	is	of	great	significance	to	study	
the	law	of	spontaneous	imbibition	of	oil	and	water	at	the	pore	scale	of	tight	sandstone.	In	this	paper,	we	
study	 the	 law	 of	 spontaneous	 imbibition	 at	 the	 pore	 scale	 of	 tight	 sandstone	 by	 combining	 theoretical	
research	and	numerical	simulation.	Based	on	the	fractal	theory	and	the	capillary	bundle	model,	we	establish	
a	mathematical	model	of	spontaneous	imbibition	in	porous	media	considering	the	dynamic	contact	angle.	
Moreover,	we	use	real tight	sandstone	cores	for	simulation	to	verify	the	accuracy	of	the	mathematical	model	
and	analyze	the	effect	of	tight	sandstone	pore	structure	parameters	on	the	spontaneous	imbibition	process.	
Research	shows	that	the	increase	of	core	porosity	will	increase	the	ultimate	recovery	factor	and	the	increase	
of	pore	fractal	dimension	has	little	effect	on	the	ultimate	recovery	factor.
KW  - 

DO  - 10.32604/icces.2023.08787