scholarly journals Effect of Emulsion in Sudanese Crude Oil PalougeField ,Melute Basin.

2021 ◽  
pp. 89-98
Author(s):  
Tagelsir Awad Ahmed Digno
Keyword(s):  
Crude Oil ◽  
Pour Point ◽  
Interesting Case ◽  
Chemical Additives ◽  
Oil Water ◽  
The Republic ◽  
Temperature Shear ◽  
Oil Emulsions ◽  
Water Cut ◽  
Comprehensive Study

The study was conducted in Palouge Field in Malute Basin Block 3&7 located in the Republic of South Sudan This paper discusses problems related to oil emulsions that have been encountered in Palouge Field. Oil samples collected from 17 Oil Gathering Manifold (OGM), viscosities range from 106cP to over 8159cP (@ 50ºCand API gravities ranged from 13 to 25. Emulsion from 2 up to 33and water cut form (7% water cut to over 77%), Pour Point 30 to 420 .These properties provide an interesting case of operational problems in oil water separation.The main causes of emulsion formation in the investigated fields were water cut, temperature, shear, Pour Point, demulsifier dosage and mixing different crudes. The results show a strong correlation ofPour Point (Paraffinic content which lead to stabilized emulsion)in the crude oil with the water-oil separation index or emulsion tightness. Recommendations are made for reducing and optimizing demulsifier dosage by adding chemical additives,and further comprehensive study should be done to determine the compounds which lead to stabilized emulsion for example Naphthenic compound and Asphaltenic.

Effect of Rheology Properties of Oil/Water Interface on Demulsification of Crude Oil Emulsions

2015 ◽  
Vol 54 (17) ◽  
pp. 4851-4860 ◽  
Author(s):  
Jun Tao ◽  
Peng Shi ◽  
Shenwen Fang ◽  
Keyi Li ◽  
Heng Zhang ◽  
...  
Keyword(s):  
Crude Oil ◽  
Water Interface ◽  
Oil Water ◽  
Oil Emulsions

Effects of the Dispersed Phase on Oil/Water Wax Deposition

2013 ◽  
Vol 135 (4) ◽  
Author(s):  
Pengyu Wang ◽  
Wei Wang ◽  
Jing Gong ◽  
Yuanxin Zhou ◽  
Wei Yang
Keyword(s):  
Particle Size ◽  
Crude Oil ◽  
Dispersed Phase ◽  
Wax Deposition ◽  
Waxy Crude Oil ◽  
Water Emulsion ◽  
Oil Emulsion ◽  
Wax Content ◽  
Oil Water ◽  
Water Cut

In the study of the foundation of the oil / water wax deposition experiment, the emulsification characteristics of crude oil emulsion with high wax content have gradually become the hot research area. In the current research of emulsification characteristics of oil/water emulsion, the attention has been focused on the study of the effects of water cut, stirring speed, particle size distribution on the viscosity of waxy crude oil emulsion in the experiment, in which heavy oil and simulated oil are adopted as the working fluids. In this study, the emulsion with different water cut and stirred by different speed was prepared under three different temperature conditions, the temperature above the wax appearance temperature (WAT), near the WAT, and below the WAT. The polarization microscope and rotary viscometer were applied to measure the effects of the particle size of the dispersed phase and waxy crystal distribution on the oil/water emulsion viscosity. The results suggest that preparing the temperature for crude oil emulsion with high wax content has an important influence on the emulsion microstructure. This study lays the foundation for further study of oil/water two phase dynamic wax deposition experiments.

scholarly journals A REVIEW OF VARIOUS POUR POINT DEPRESSANTS USED FOR FLOW ASSURANCE IN OIL INDUSTRIES

2021 ◽  
Vol 6 (1) ◽  
Author(s):  
Gaurav Himanta Khaklari ◽  
Prasenjit Talukdar
Keyword(s):  
Crude Oil ◽  
Pour Point ◽  
Chemical Properties ◽  
Flow Assurance ◽  
Wax Deposition ◽  
Chemical Additives ◽  
Point Depressant ◽  
Pour Point Depressants ◽  
End Use ◽  
Physical And Chemical

Crude oil needs to be transported from oil wells to refinery and storage facilities in one form or another to ultimately become end use products. After the successful extraction of oil from the ground it is mostly transported through pipelines where the crude oil experiences various changes in its physical and chemical properties. These rheological changes may cause numerous flow assurance problems such as wax and paraffin deposition which ultimately restricts the flow of oil. Chemical additives such as Pour Point depressants (PPDs) are used in this case for the efficient transportation of crude oil by lowering the Wax Deposition Temperature (WAT). Hence, in order to enhance the knowledge about PPDs, the mechanism of various types of Pour Point Depressant for aiding the flow of crude oil while transportation were discussed in this paper.

scholarly journals Evaluation of anti-agglomerate hydrate inhibitor in water-in-crude oil emulsions of different water cut

2020 ◽  
Vol 38 (19) ◽  
pp. 922-928
Author(s):  
Daria S. Kolotova ◽  
Svetlana R. Derkach ◽  
Sébastien Simon ◽  
Johan Sjöblom ◽  
Tracy Donaldson ◽  
...  
Keyword(s):  
Crude Oil ◽  
Oil Emulsions ◽  
Water Cut

Effects of crude oil-water emulsions at various water-cut on the performance of the centrifugal pump

2017 ◽  
Vol 16 (1) ◽  
pp. 71
Author(s):  
Sayed A. Bellary ◽  
Md. Hamid Siddique ◽  
Abdus Samad ◽  
Jitendra S. Sangwai ◽  
Bohyun Chon
Keyword(s):  
Crude Oil ◽  
Centrifugal Pump ◽  
Oil Water ◽  
Water Cut
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