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Analysis on Effect of Paraffin Removal from and Hot Flushing in Oil Well

Release time:

2024-04-25

Since the wax component in crude oil is deposited when the temperature drops in the process of production, it will lead to wax deposition in the oil well, and thus affect the normal production of the oil well. To maintain the stable operation of oil wells, wax removal is crucial. Among the various methods, thermal wax removal is a common and effective one.

Since the wax component in crude oil is deposited when the temperature drops in the process of production, it will lead to wax deposition in the oil well, and thus affect the normal production of the oil well. To maintain the stable operation of oil wells, wax removal is crucial. Among the various methods, thermal wax removal is a common and effective one.

I. Principle of Thermal Wax Removal

Thermal wax removal is made by injecting hot water or hot oil into the oil well to melt the wax using the principle of thermal conduction, so as to remove the wax.

II. Effect of Thermal Wax Removal

1. Dissolution of wax: By injecting hot medium, wax deposited on the pipeline and well wall can be effectively melted to restore the normal oil production ability of the well.

2. Prevention of blockage: Removal of wax prevents blockage of pipelines and equipment and ensures continuity of oil well production.

3. Improvement of production efficiency: After wax removal, the oil production capacity of the oil well is restored, which can improve the production efficiency and increase the economic benefits of the oilfield.

III. Analysis on Effect

1. Short-term effect: After thermal wax removal, the oil production of the oil well will be immediately restored, the wellhead pressure will also be reduced, and the working condition of the oil well will be significantly improved.

2. Long-term effect: Regular thermal wax removal can prolong the service life of oil wells and reduce the equipment damage and maintenance costs caused by wax deposition.

3. Cost-effectiveness: Although thermal wax removal requires a certain investment, its cost is relatively low, and the effect is significant compared with the cost of replacing equipment and maintenance.

IV. Influencing Factors

The effect of thermal wax removal is affected by many factors, such as the temperature of the hot medium, the injected volume, and the degree of wax deposition in oil wells. Therefore, it is necessary to select the appropriate thermal flushing parameters according to the actual situation of the oil well in the practical operation.

V. Conclusion

Thermal wax removal is an effective method for removing wax from oil wells; it can restore the oil wells' production capacity, enhance the operational efficiency, and prolong their service life. However, in order to ensure the effect of thermal wax removal, it is necessary to select the appropriate thermal flushing parameters and perform regular wax removal according to the actual situation of the oil wells. At the same time, it is necessary to pay attention to the safety issues during the process of thermal wax removal to ensure the smooth operation.

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