المجلة الدولية للعلوم والتقنية

This study has been conducted on the natural gas which produced in Jalo 59 field. The objective of the study is to estimate gas specifications through dehydration process, rather than the other properties such as physiochemical characterization and critical properties. The chemical composition of gas shows that the principal constituent is methane. Other constituents are paraffinic hydrocarbons such as ethane, propane, and the butanes. Gas compressibility factor (Z) has been determined through the calculation of other parameters which shows a value 0.865. On the other hand, other physical properties are estimated such as molecular weight, specific gravity, density and specific value because of their importance for gas specifications. The gas chromatography analysis of Jalo 59 field reveals that sweet gas, where the main components are methane and ethane with mole fraction 0.74 and 0.12 respectively, while the other components represent the rest ratio of mole fraction. The impurities that represented by N2, CO2 and H2S are 0.019385, 0.00926 and 0.000 respectively. The calculated properties exhibit results meet the required gas specifications. In the Jalo gas field a glycol dehydration plant removes 72 lb/day of water vapor from a stream of gas to produce a dew point of 23˚F. The glycol concentration is 99.15% with flow rate per minute 1.7 gpm. The glycol reboiler temperature is 400 ˚F. The results obtained reveal good results of treatment that meet the specifications of natural gas requirements.