000			01870nab a2200205 4500
005			20260520002032.0
008			260224s2011 xxu
245	0	0	_aTaking advantage of injectivity decline for improved recovery during waterflood with horizontal wells
260			_a _b _cagos. 2011
270			_a04/04/2012 ; 04/04/2012
300			_a16 p. ; 288 - 303
520			_aTranscripción del resumen del autor. Injectivity formation damage with waterflooding using sea/produced water has been widely reported in the North Sea, the Gulf of Mexico and the Campos Basin in Brazil. The damage is due to the capture of solid and/or liquid particles by reservoir rock that consequently leads to the permeability decline. Another reason for the permeability decline is the formation of a low permeable external filter cake. However, moderate injectivity decline is not too damaging for a waterflood project with long horizontal injectors, where the initial injectivity index is high. In this case, the injection of raw or poorly treated water may significantly reduce the cost of water treatment, which is a cumbersome and expensive procedure in offshore projects. In this paper we investigate the effects of injected water quality on waterflooding using horizontal wells. An analytical model for injectivity decline, which accounts for particle capture and a low permeable external filter cake formation, has been implemented into black oil reservoir simulator. It was found that induced injectivity damage results in a noticeable reduction of water cut and in increased (although delayed) sweep efficiency.
581			_a2
773	0		_tJournal of Petroleum Science & Engineering _g78
942			_cARTICULO
100	1		_aBedrikovetsky, Pavel G. _942577
100	1		_aNguyen, Thi K.P. _952330
100	1		_aHage, Andrew _952331
999			_c186983 _d186983