000			01994nab a2200205 4500
005			20260520001747.0
008			260224s2009 xxu
245	0	0	_aAnalytical solutions for one-phase seepage flows impeded by wellbore seals
260			_a _b _cfeb. 2009
270			_a07/05/2009 ; 07/05/2009
300			_a11 p. ; 65-76
520			_aTranscripción del resúmen publicado por el autor: Steady, one-phase, plane and axisymmetric, Darcian seepage in a homogeneous rock adjacent to a partly isolated wellbore with annular seals is analytically studied. Water flows from an isobaric feeding contour and a fracture, which is kept at the same pressure as the feeding contour, to a wellbore. Partial isolation of the wellbore makes its wall a composition of intermittently arrayed no-flow boundaries, which model the wellbore seals, and isobaric surfaces, which model the annular compartments between the seals and a wellbore tubular on which the seals are mounted. Pressure drops from the aquifer (fracture) to the compartments and further to the borehole that generates a hierarchy of flows mathematically equivalent to the Toth [Freeze, R.A., Cherry, J.A., 1979. Groundwater. Prentice Hall, Englewood Cliffs] hydrogeological patterns of regional, intermediate and local groundwater flows on the scale of catchments. Conformal mappings of complex potential domains onto physical planes, where water seepage takes place, are used to tackle the fragments of the full feeding contour-fracture–sealed wellbore system. Explicit rigorous solutions for the flow characteristics (pressure and stream function) enable calculating optimal wellbore isolation with a criterion of minimal water flow rate from the fracture.
581			_a1-4
773	0		_tJournal of Petroleum Science & Engineering _g64
942			_cARTICULO
100	1		_aKacimov, Anvar R. _941083
100	1		_aMarketz, Franz _941084
100	1		_aPervez, Tasneem _941085
999			_c169689 _d169689