000			01964nab a2200205 4500
005			20260520001906.0
008			260224s xxu
245	0	0	_aCoupled reservoir/wormholes model for cold heavy oil production wells
270			_a26/11/2008 ; 27/03/2006
300			_a11 p.
520			_aTranscripción del resumen publicado por el autor: Cold heavy oil production (CHOP) is a non-thermal process in which sands are aggressively produced to obtain a higher oil production rate. It is believed that wormholes are generated during this process and that the wormholes provide the main conduits for fluid flow. A semi-analytical model coupling the reservoir/wormholes flow has been developed to analyze the performance of CHOP wells. The diffusivity equation in the model is solved by source functions, which has been widely practiced in solving the unsteady reservoir flow problems to analyze transient pressure behaviors of horizontal and multilateral wells. This model is also quite flexible to incorporate any wormhole hydraulic model; moreover, the model can be used under a variety of reservoir boundary conditions, such as closed systems, constant pressure systems, etc. In this paper, the effects of wormhole patterns, wormhole scales, wormhole diameters, wormhole branching, boundary conditions and pressure drop along the wormhole on the performance of CHOP wells have been analyzed extensively. The model not only provides a powerful tool to understand the effects of wormholes, but also offers a way to interpret well testing data and to analyze production rate declines of CHOP wells.
773	0		_tJournal of Petroleum Science & Engineering _gVol. 50, issues 3-4 (mar. 2006) ; p. 258-268
942			_cARTICULO
100	1		_aLiu, X. _947915
100	1		_aZhao, G. _938888
650		0	_aProducción de petróleo y gas _91020
650		0	_aPetróleos pesados _922736
700	1		_aZhao, G. _938888
999			_c178983 _d178983