الفهرس 
introduction
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Abstract
The most commonly encountered, and probably the most challenging task in petroleum engineering, is to accurately describe the reservoir. Estimating reservoir properties are highly important to evaluate the dynamic well performance, completion efficiency and development strategy1 . This study presents a field case study of the integrated analysis and interpretation developed using all of the available cores, production, and well test data from the condensate reservoirs of North Abu Qir fields. Mediterranean Sea, Egypt. As North Abu Qir fields is considered one of the most prospective fields in gulf of Abu Qir, producing around 100 MMSCFD and 1300 BPD condensate with capability to increase production rates. Although production analysis (PA) for reservoir characterization is approaching the popularity of pressure transient analysis (PTA), there are many consistent diagnostic methods in practice for the analysis of production data. Many of the ”diagnostic” methods for production data analysis are little more than observation-based approaches and some are essentially ”rules of thumb” 2 . While others are analytical methods derived from the same principles like well testing. However the extend of using the available production data analysis techniques in characterization of gas-condensate reservoirs was subjected to great doubt, this is because once the pressure drops below the dew-point pressure condensation occurs inside the reservoir and the fluid flow change from single phase to multiphase flow. IV This study demonstrate and discuss analysis and interpretation techniques that can be utilized for reservoir description and tried to propose production data analysis as an alternative to the common reservoir evaluation techniques and providing a better understanding of the factor affecting the results of each technique. Also tried to integrate all method to provide better understanding and description of the reservoir by using the available techniques to estimate areal distributions of rock properties, original gas-in-place, gas reserves, and reservoir drainage area (all on a ”per- well” basis)3.