شماره ركورد كنفرانس :
4619
عنوان مقاله :
Prediction of Natural Gas Hydrate Formation in presence of Aqueous Electrolyte Solutions by Updating the Parameters of Exsiting Thermodynamic Model
پديدآورندگان :
Hosseini Kiumars k.hoseini@sutech.ac.ir Department of Chemical, Petroleum and Gas Engineering, Shiraz University of Technology, Shiraz, Iran , Dehghan Abnavi Ali Department of Petroleum Engineering, School of Chemical, Gas and Petroleum Engineering, Shiraz University, Shiraz, Iran
كليدواژه :
Hydrate formation , Inhibitors , Electrolyte , Thermodynamic model
عنوان كنفرانس :
دومين كنفرانس بين المللي دو سالانه نفت، گاز و پتروشيمي
چكيده فارسي :
Knowing the hydrate phase equilibria in brines is critically important to assess the risk of hydrate formation, especially for conditions involving high salinity and very high pressure, which are becoming more prevalent in oil/gas exploration and production. Inorganic salts are thermodynamic hydrate inhibitors and are commonly present in produced water from oil/gas production. In the present work, after updating and re-optimization the parameters of the thermodynamic model for calculating the water activity coefficient in the presence of various electrolytes (NaCl, KCl, CaCl2 and MgCl2), the average absolute deviation of the model, is about 0.40 K for pressures ranging from 0.2 to 15 MPa. Compared to other literature models, it shows the high accuracy of the model
