Effects of Temperature on the Transportation of Assam Crude Oil through Pipelines

Enrichment technique was employed for the isolation of the crude oil degrading bacteria. The isolated bacteria were screened for their degradative ability and the best degrading bacteria were selected based on their growth. Specific activities of Catechol-2,3-dioxygenase and effects of temperature and pH and their stabilities on the enzyme relative activities were observed. Bacteria isolated from the soil sample include; Bacillus cereus, B. amyloliquficiens, B. firmus, Acinetobacter calcoaceticus, Pseudomonas sp. P. fluorescens, P.putida, P.aeruginosa, Achromobacter xylosoxidans and Achromobacter sp. Screening of the degradative ability of the bacteria revealed P. aeruginosa, Bacillus cereus, Acinetobacter calcoaceticus and Achromobacter sp. to be the best degraders. The pH and temperature range with time for the enzyme activity were 6.0-8.0 and 30oC-50oC respectively. The enzyme exhibited activity that was slightly more tolerant to alkaline pH. Therefore, engineering of Catechol 2,3-dioxygenase may be employed for application on bioremediation of polluted sites.

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Experimental Investigation of the Effects of Temperature, Pressure, and Crude Oil Composition on Interfacial Properties

SPE Reservoir Engineering ◽

10.2118/12124-pa ◽

1986 ◽

Vol 1 (04) ◽

pp. 321-328 ◽

Cited By ~ 67

Author(s):

O.S. Hjelmeland ◽

L.E. Larrondo

Keyword(s):

Experimental Investigation ◽

Crude Oil ◽

Interfacial Properties ◽

Oil Composition ◽

Effects Of Temperature

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Occurrence and Characterization of Paraffin Wax Formed in Developing Wells and Pipelines

Energies ◽

10.3390/en12060967 ◽

2019 ◽

Vol 12 (6) ◽

pp. 967 ◽

Cited By ~ 9

Author(s):

Marwa El-Dalatony ◽

Byong-Hun Jeon ◽

El-Sayed Salama ◽

Mohamed Eraky ◽

Won Kim ◽

...

Keyword(s):

Crude Oil ◽

Oil Recovery ◽

Paraffin Wax ◽

Formation Damage ◽

Significant Research ◽

The Status ◽

Effects Of Temperature ◽

Oil Type

Deposition and precipitation of paraffin wax in pipelines are major problems in the production, transfer, storage, and processing of crude oil. To prevent complete clogging, it is necessary to minimize and remove deposited wax in pipelines and tubing. Significant research has been done addressing the mechanisms of wax formation and its composition. In this review, the status of research and perspectives on the occurrence and characterization of the paraffin wax that forms in crude oil developing wells and pipelines has been critically reviewed. Several approaches for detecting paraffin wax and managing wax formation damage during oil recovery were discussed. This review also highlighted the effects of temperature and crude oil type on wax formation.

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Study on Water Plugging Technology by Emulsified Viscous Oil in Block Jin16

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.535.432 ◽

2014 ◽

Vol 535 ◽

pp. 432-435

Author(s):

Fu Dong Sui ◽

Guang Sheng Cao ◽

Chun Bao Ma ◽

Xiao Ma

Keyword(s):

Crude Oil ◽

Advanced Technology ◽

Long Term Stability ◽

Viscous Oil ◽

Sealing Performance ◽

Effects Of Temperature ◽

Core Simulation ◽

Stability Of Emulsion ◽

Temperature Water

Water plugging by emulsified viscous oil s a kind of advanced technology with high selectivity, which causes little damage to reservoir and brings high economic benefit for oil wells. Through a series of simulation experiments in the laboratory, the effects of temperature, water ratio, salinity, the emulsifier concentration, the viscosity of crude oil on the emulsion viscosity is studied, also long-term stability of emulsion. The following analysis of the experimental data makes the main factor affecting water plugging by emulsified heavy oil clear. By the Indoor core simulation experiment, this paper determines changes of pressure, recovery and breakthrough pressure and studies injection capacity of emulsified crude oil and sealing performance to ensure reasonable injection parameters.

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