Impact of Gas Hydrate Formation/Dissociation on Water-in-Crude Oil Emulsion Properties Studied by Dielectric Measurements

2014 ◽  
Vol 29 (1) ◽  
pp. 43-51 ◽  
Author(s):  
Kjetil Haukalid ◽  
Kjell M. Askvik ◽  
Kjetil Folgerø ◽  
Peter J. Thomas
Keyword(s):  
Crude Oil ◽  
Gas Hydrate ◽  
Hydrate Formation ◽  
Dielectric Measurements ◽  
Oil Emulsion ◽  
Gas Hydrate Formation

scholarly journals Investigation on Gas Hydrates Formation and Dissociation in Multiphase Gas Dominant Transmission Pipelines

2020 ◽  
Vol 10 (15) ◽  
pp. 5052 ◽  
Author(s):  
Sayani Jai Krishna Sahith ◽  
Srinivasa Rao Pedapati ◽  
Bhajan Lal
Keyword(s):  
Crude Oil ◽  
Phase Behavior ◽  
Gas Hydrates ◽  
Gas Hydrate ◽  
Formation Rate ◽  
Water System ◽  
Hydrate Formation ◽  
Multiphase System ◽  
Gas Hydrate Formation ◽  
Water Cut

In this work, a gas hydrate formation and dissociation study was performed on two multiphase pipeline systems containing gasoline, CO2, water, and crude oil, CO2, water, in the pressure range of 2.5–3.5 MPa with fixed water cut as 15% using gas hydrate rocking cell equipment. The system has 10, 15 and 20 wt.% concentrations of gasoline and crude oil, respectively. From the obtained hydrate-liquid-vapor-equilibrium (HLVE) data, the phase diagrams for the system are constructed and analyzed to represent the phase behavior in the multiphase pipelines. Similarly, induction time and rate of gas hydrate formation studies were performed for gasoline, CO2, and water, and crude oil, CO2, water system. From the evaluation of phase behavior based on the HLVE curve, the multiphase system with gasoline exhibits an inhibition in gas hydrates formation, as the HLVE curve shifts towards the lower temperature and higher-pressure region. The multiphase system containing the crude oil system shows a promotion of gas hydrates formation, as the HLVE curve shifted towards the higher temperature and lower pressure. Similarly, the kinetics of hydrate formation of gas hydrates in the gasoline system is slow. At the same time, crude oil has a rapid gas hydrate formation rate.

Gas Hydrate Formation and Transport in an Acidic Crude Oil: Influence of Salt and pH†

2008 ◽  
Vol 22 (2) ◽  
pp. 721-728 ◽  
Author(s):  
Anne Sinquin ◽  
David Arla ◽  
Christian Prioux ◽  
Jean Louis Peytavy ◽  
Philippe Glenat ◽  
...  
Keyword(s):  
Crude Oil ◽  
Gas Hydrate ◽  
Hydrate Formation ◽  
Gas Hydrate Formation

Natural gas hydrate formation dynamics in a diesel water-in-oil emulsion system

2018 ◽  
Vol 36 (20) ◽  
pp. 1649-1656 ◽  
Author(s):  
Zhen Pan ◽  
Zhe Wang ◽  
Zhien Zhang ◽  
Guiyang Ma ◽  
Li Zhang ◽  
...  
Keyword(s):  
Natural Gas ◽  
Gas Hydrate ◽  
Hydrate Formation ◽  
Emulsion System ◽  
Natural Gas Hydrate ◽  
Oil Emulsion ◽  
Gas Hydrate Formation ◽  
Formation Dynamics ◽  
Water In Oil Emulsion

Experimental and modeling investigation of kinetics of methane gas hydrate formation in water-in-oil emulsion

2014 ◽  
Vol 362 ◽  
pp. 28-34 ◽  
Author(s):  
Liang Mu ◽  
Shi Li ◽  
Qing-Lan Ma ◽  
Ke Zhang ◽  
Chang-Yu Sun ◽  
...  
Keyword(s):  
Gas Hydrate ◽  
Hydrate Formation ◽  
Oil Emulsion ◽  
Methane Gas ◽  
Gas Hydrate Formation ◽  
Water In Oil Emulsion ◽  
Kinetics Of

Natural gas hydrate formation and inhibition in gas/crude oil/aqueous systems

Fuel ◽  
2015 ◽  
Vol 148 ◽  
pp. 186-190 ◽  
Author(s):  
Nagu Daraboina ◽  
Stylianos Pachitsas ◽  
Nicolas von Solms
Keyword(s):  
Natural Gas ◽  
Crude Oil ◽  
Gas Hydrate ◽  
Hydrate Formation ◽  
Aqueous Systems ◽  
Natural Gas Hydrate ◽  
Gas Hydrate Formation

scholarly journals Phase behavior study on gas hydrates formation in gas dominant multiphase pipelines with crude oil and high CO2 mixed gas

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jai Krishna Sahith Sayani ◽  
Srinivasa Rao Pedapati ◽  
Bhajan Lal
Keyword(s):  
Crude Oil ◽  
Phase Behavior ◽  
Gas Hydrate ◽  
Hydrate Formation ◽  
Multiphase System ◽  
Statistical Regression ◽  
Mixed Gas ◽  
Experimental Conditions ◽  
Temperature Variance ◽  
Gas Hydrate Formation

Abstract This research is focused on understanding the phase behavior of gas hydrate formation in the gas dominant multiphase pipelines containing mixed gas with high CO2, crude oil, and deionized water. The experimental conditions are in the pressure range of 3–7 MPa with water cut as 20% of the volume. Initially, the effect of high CO2 content in natural gas on the phase boundary conditions of hydrates is studied through simulation (CSMGEM software) and experiments. Later, an additional phase of crude oil was introduced, with 15% of the volume to study the multiphase system. From the experimental analysis, thermodynamic equilibrium conditions were found, and the hydrate-liquid–vapor-equilibrium (HLVE) curves were drawn. The phase behavior is comprehended by comparing the HLVE curves of pure and multiphase systems. It is found that the high CO2 content tends to promote the gas hydrate formation. Based on the results, temperature variance and enthalpy of formation were calculated for the multiphase system. With a difference of 1.32 average temperature variance, the multiphase system exhibits inhibition. A basic statistical regression model was made to predict the gas hydrate formation in multiphase transmission pipelines. This work helps in understanding the effect of a new phase on gas hydrate formation.

scholarly journals Study of the Comprehensive Kinetic Model of Natural Gas Hydrate Formation in a Water-in-Oil Emulsion Flow System

ACS Omega ◽  
2020 ◽  
Vol 5 (51) ◽  
pp. 33101-33112
Author(s):  
Xiaofang Lv ◽  
Yang Liu ◽  
Bohui Shi ◽  
Shidong Zhou ◽  
Yun Lei ◽  
...  
Keyword(s):  
Kinetic Model ◽  
Natural Gas ◽  
Gas Hydrate ◽  
Flow System ◽  
Hydrate Formation ◽  
Natural Gas Hydrate ◽  
Oil Emulsion ◽  
Gas Hydrate Formation ◽  
Emulsion Flow ◽  
Water In Oil Emulsion
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