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    What chemicals are used to improve the flow properties of oil?

    News

    What chemicals are used to improve the flow properties of oil?

    2024-12-31

    To improve the flow properties of oil, various chemicals are employed at different stages of oil production, transportation, and processing.


    The factor that most significantly affects the pour point and wax formation of crude oil is wax. Here, "wax" refers to n-alkanes with higher carbon numbers in crude oil, generally those with 15 or more carbon atoms. Wax in crude oil with carbon numbers above 20 can impact oil well production. n-Alkanes from C18 to C35 are considered soft wax, while iso-alkanes from C35 to C64 are considered hard wax, with melting points between 49-60°C.

    When the temperature drops to a certain level, wax crystals will precipitate from the crude oil, leading to wax deposition and solidification, causing the crude oil to lose its fluidity.

    Polymeric wax inhibitors are all oil-soluble comb polymers with side chains. These side chains have structures and polar groups similar to those of paraffin molecules, forming distorted wax crystals that are difficult to grow with the paraffin molecules. The length of the side chains in polymeric wax inhibitors is directly related to the efficacy of wax prevention: when the average carbon number of the side chains is close to the peak carbon number of the wax in the crude oil, it is most beneficial for wax precipitation, achieving the best wax inhibition effect.

    YouzhuCHEM has developed a variety of Pour Point Depressants (PPD products)

    customized for specific applications. Please contact us to find the PPD product which best suits your needs. Recommendations are available on request depending on your specific crude challenges or after individual testwork in our laboratories.

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    Pour Point Depressants

    Common pour point depressants include polymers like polyalkyl methacrylates...

    Wax Inhibitors

    They modify wax crystallization to keep the oil flowing at lower temperatures

    Paraffin Control Agents

    Aimed at controlling the deposition of paraffin in production systems and pipelines.

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    Choosing the Right Paraffin Control Additive

    Selecting the appropriate paraffin control additive involves considering several factors to ensure compatibility with the specific crude oil type and operational conditions
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    Crude Oil Composition

    The composition of crude oil plays a significant role in determining the type of flow improver needed. Factors such as the wax content, paraffin type, and the pour point...

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    Temperature Profile

    The geographic location and the ambient temperature of the pipeline or reservoir should, be considered when choosing an additive.

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