This pepef was prepared fcf pmsomation et the SPE Annual Tschnic.al GantemncwJand Exhibition held in DaNM, U. S. A., octoh 22-25, 1995. Th!s paper was selected for presentation by an SPE Program Committee Ioltowing review of information contained in an abstmd submhled by the authors. Contents cd the paper, as presentsd, have nd bwn reiewed by the SodmtY of Petroleum Engineers and are subjed to cursdica ,py the authors. The material, as presented, does not necessarily ref ted an R%%::'R%G%2 Petroleum En~ineers, its otlicers, or nmnbers. Paperspresented at S publicatkm review by Edtirial Conmittsm of ths Soc4ety of Petroleum Enginsws Permission to CUFY K restricted to an chtred d not r-mm than 330 wards. Ilkmlfatbns K9y not be copied. The abstract shculd contain wnspiwot.ts acknosddgmm tot whue and by whun the papei was wesented. Wrhe Librwian, SPE, P. 0. Box S33B36. Rkhafd=n, TX 76C93-393S, U. S. A., lax 01-214-952-9435.Abstract:

This pepef was prepared fcf pmsomation et the SPE Annual Tschnic.al GantemncwJand Exhibition held in DaNM, U. S. A., octoh 22-25, 1995. Th!s paper was selected for presentation by an SPE Program Committee Ioltowing review of information contained in an abstmd submhled by the authors. Contents cd the paper, as presentsd, have nd bwn reiewed by the SodmtY of Petroleum Engineers and are subjed to cursdica ,py the authors. The material, as presented, does not necessarily ref ted an R%%::'R%G%2 Petroleum En~ineers, its otlicers, or nmnbers. Paperspresented at S publicatkm review by Edtirial Conmittsm of ths Soc4ety of Petroleum Enginsws Permission to CUFY K restricted to an chtred d not r-mm than 330 wards. Ilkmlfatbns K9y not be copied. The abstract shculd contain wnspiwot.ts acknosddgmm tot whue and by whun the papei was wesented. Wrhe Librwian, SPE, P. 0. Box S33B36. Rkhafd=n, TX 76C93-393S, U. S. A., lax 01-214-952-9435.Abstract: