Modeling of PVT-Properties of Natural Gas Condensate Mixtures Adjusted for Presence of Residual Water in Collector

2015 ◽  
Author(s):  
T. S. Yushchenko ◽  
A. I. Brusilovsky
Keyword(s):  
Natural Gas ◽  
Gas Condensate ◽  
Residual Water ◽  
Pvt Properties

Effects of Scotian shelf natural gas condensate on the mummichog

1987 ◽  
Vol 18 (2) ◽  
pp. 74-77 ◽  
Author(s):  
S Mahon ◽  
R.F Addison ◽  
D.E Willis
Keyword(s):  
Natural Gas ◽  
Gas Condensate ◽  
Scotian Shelf

Surface Layers on Steel in Natural Gas Condensate Wells

1947 ◽  
Vol 39 (7) ◽  
pp. 863-867 ◽  
Author(s):  
Norman Hackerman ◽  
D. A. Shock
Keyword(s):  
Natural Gas ◽  
Gas Condensate ◽  
Surface Layers

Carbon Dioxide in a Natural Gas-Condensate System

1946 ◽  
Vol 38 (5) ◽  
pp. 530-534 ◽  
Author(s):  
Fred H. Poettmann ◽  
Donald L. Katz
Keyword(s):  
Carbon Dioxide ◽  
Natural Gas ◽  
Gas Condensate ◽  
Condensate System

scholarly journals An improved method for calculating critical temperatures and critical pressures in natural gas mixtures with up to nC11 hydrocarbons

2019 ◽  
Vol 74 ◽  
pp. 53
Author(s):  
Marvin Ricaurte ◽  
José M. Fernández ◽  
Alfredo Viloria
Keyword(s):  
Natural Gas ◽  
Empirical Model ◽  
Gas Mixtures ◽  
Gas Condensate ◽  
Critical Properties ◽  
Improved Method ◽  
Critical Temperatures

This study suggests an improvement to the empirical model proposed by Peng (1986, Can. J. Chem. Eng. 64, 827–830) to calculate critical temperatures and critical pressures in natural gas mixtures. It aims to extend its application to natural gas mixtures containing hydrocarbons compounds up to undecane (nC11). This work focuses on establishing new matrices of coefficients Aij by obtaining new binary interactions between heavy compounds and the rest of compounds present in natural gas mixtures. The analysis considered more than 300 natural gas mixtures. Different comparisons were made between calculated critical properties, and referenced critical properties. Mean absolute errors <1.00% for the critical temperatures, and <2.70% for critical pressures were obtained. These low average deviations demonstrate the accuracy of this study, and could be considered as an easy-to-use engineering tool for estimating critical properties in natural gas mixtures, applicable to lean gas, rich gas, gas condensate, and Natural Gas Liquids (NGL).

scholarly journals Utilization of CO2 as Cushion Gas for Depleted Gas Reservoir Transformed Gas Storage Reservoir

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 576 ◽  
Author(s):  
Cheng Cao ◽  
Jianxing Liao ◽  
Zhengmeng Hou ◽  
Hongcheng Xu ◽  
Faisal Mehmood ◽  
...  
Keyword(s):  
Natural Gas ◽  
Production Rate ◽  
Water Saturation ◽  
Gas Storage ◽  
Periodic Change ◽  
Residual Water ◽  
Reservoir Pressure ◽  
Gas Reservoir ◽  
Reservoir Permeability ◽  
Depleted Gas Reservoir

Underground gas storage reservoirs (UGSRs) are used to keep the natural gas supply smooth. Native natural gas is commonly used as cushion gas to maintain the reservoir pressure and cannot be extracted in the depleted gas reservoir transformed UGSR, which leads to wasting huge amounts of this natural energy resource. CO2 is an alternative gas to avoid this particular issue. However, the mixing of CO2 and CH4 in the UGSR challenges the application of CO2 as cushion gas. In this work, the Donghae gas reservoir is used to investigate the suitability of using CO2 as cushion gas in depleted gas reservoir transformed UGSR. The impact of the geological and engineering parameters, including the CO2 fraction for cushion gas, reservoir temperature, reservoir permeability, residual water and production rate, on the reservoir pressure, gas mixing behavior, and CO2 production are analyzed detailly based on the 15 years cyclic gas injection and production. The results showed that the maximum accepted CO2 concentration for cushion gas is 9% under the condition of production and injection for 120 d and 180 d in a production cycle at a rate of 4.05 kg/s and 2.7 kg/s, respectively. The typical curve of the mixing zone thickness can be divided into four stages, which include the increasing stage, the smooth stage, the suddenly increasing stage, and the periodic change stage. In the periodic change stage, the mixed zone increases with the increasing of CO2 fraction, temperature, production rate, and the decreasing of permeability and water saturation. The CO2 fraction in cushion gas, reservoir permeability, and production rate have a significant effect on the breakthrough of CO2 in the production well, while the effect of water saturation and temperature is limited.

Determination of total mercury in hydrocarbons and natural gas condensate by atomic fluorescence spectrometry

The Analyst ◽  
1999 ◽  
Vol 124 (2) ◽  
pp. 185-189 ◽  
Author(s):  
Azman Shafawi ◽  
Les Ebdon ◽  
Mike Foulkes ◽  
Peter Stockwell ◽  
Warren Corns
Keyword(s):  
Natural Gas ◽  
Total Mercury ◽  
Gas Condensate ◽  
Fluorescence Spectrometry ◽  
Atomic Fluorescence Spectrometry ◽  
Atomic Fluorescence
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