@Article{icces.2023.010343,
AUTHOR = {Xiaojun Zhang, Jun Li, Wei Lian, Gonghui Liu},
TITLE = {Study	on	Variation	Law	of	In-Situ	Stress	Around	Well	Under	Different	 Fracturing	Technology	of	Shale	Gas	Platform	Well},
JOURNAL = {The International Conference on Computational \& Experimental Engineering and Sciences},
VOLUME = {26},
YEAR = {2023},
NUMBER = {1},
PAGES = {1--1},
URL = {http://www.techscience.com/icces/v26n1/53887},
ISSN = {1933-2815},
ABSTRACT = {In	recent	years,	shale	gas	development	in	Fengnan	4	well	area	of	Xinjiang	Oilfield	is	dominated	by	platform	
wells.	 In	contrast	 to	conventional	 fracturing	development,	 the	zipper	 fracturing	is	primarily	used	in	 this	
block.	In	this	paper,	the	finite	element	model	of	platform	well	fracturing	is	established	by	establishing	the	
mathematical	 model	 of	 multi-cluster	 fractures	 interacting	 with	 each	 other,	 considering	 the	 condition	 of	
multi-well	and	multi-fracture.	The	sequential	 fracturing	of	platform	wells	and	the	zipper	 fracturing	(well	
alternating	fracturing,	fracturing	stage	alternating	fracturing)	are	simulated	in	this	paper,	and	the	variation	
law	of	induced	stress	and	horizontal	principal	s	are	established	by	establishing	the	mathematical	model	of	
multi-cluster fractures	interacting	with	each	other,	taking	into	consideration	the	condition	of	multi-well	and	
multi-fracture.	Considered	is	the	variance	of	in-situ	stress	in	various	fracturing	techniques.	The	results	show	
that:	1)	In	the	fracturing	of	platform	wells,	due	to	the	mutual	interference	of	adjacent	well	fracturing,	the	
non-uniformity	of	fracture	propagation	is	high,	which	results	in	a	non-uniform	change	of	in-suit	stress;	2)	
Under	 each	 fracturing	 process	 condition,	 the	in-suit	 stress	increases	 to	 some	 extent,	with	 the	minimum	
principal	stress	increasing	the	most,	followed	by	the	vertical	principal	stress	and	the	maximum	horizontal	
principal	 stress.	 3)	 Zipper	 fracturing	 has	 a	 bigger	 impact	 than	 sequential	 fracturing	 on	 the	 platform	
intermediate	 well's	 peripheral	 stress	 value.	 The	 research	 results	 may	 be	 useful	 for	 optimizing	 the	 well	
fracturing	mode	on	a	shale	gas	platform.},
DOI = {10.32604/icces.2023.010343}
}