Methods and compositions for reducing the frictional resistance to flow
of aqueous liquids
    62.
    发明授权
    Methods and compositions for reducing the frictional resistance to flow of aqueous liquids 失效
    降低含水液体流动摩擦阻力的方法和组合物

    公开(公告)号:US3961639A

    公开(公告)日:1976-06-08

    申请号:US395946

    申请日:1973-09-10

    摘要: The frictional energy losses in the flow of an aqueous liquid along a surface such as the inside wall of a pipe are reduced by incorporating a polyethylene oxide alcohol surfactant into the liquid, moving the liquid on a flow path along the surface and maintaining the temperature of the liquid near to or greater than its cloud point. The frictional energy loss per unit length of the flow path is thereby reduced below the corresponding loss of energy which occurs when moving pure water at the same volumetric rate on the same path. Optionally, an electrolyte or salt is included in the aqueous mixture to depress the cloud point thereof. Preferably, the surfactant employed contains between about 12 and 18 carbon atoms in its lipophilic moiety and between about 3 and about 9 ethylene oxide units in its hydrophilic moiety.

    摘要翻译: 通过在液体中加入聚环氧乙烷醇表面活性剂,使液体沿着表面的流动路径沿着表面的流动路径沿着表面(例如管的内壁)流动的水性液体的流动中的摩擦能量损失减少, 液体接近或大于其浊点。 因此,流动路径的每单位长度的摩擦能量损失降低到在相同路径上以相同体积速率移动纯水时发生的相应的能量损失。 任选地,在含水混合物中包含电解质或盐以抑制其浊点。 优选地,所用表面活性剂在其亲油部分中含有约12至18个碳原子,在其亲水部分中含有约3至约9个环氧乙烷单元。

    Transmission of mixed petroleum products through a frozen medium
    63.
    发明授权
    Transmission of mixed petroleum products through a frozen medium 失效
    通过冷冻介质传输混合石油产品

    公开(公告)号:US3730201A

    公开(公告)日:1973-05-01

    申请号:US3730201D

    申请日:1971-03-16

    申请人: LEFEVER K

    发明人: LEFEVER K

    IPC分类号: F17D1/17 F17D1/16

    CPC分类号: F17D1/17 Y10T137/0391

    摘要: A method of transmitting a petroleum product through a frozen medium which is structurally unstable at temperatures at or above freezing. A fluid which is normally gaseous at ambient temperatures is liquified and mixed with the petroleum product to be transmitted. The mixture is then transmitted through a pipeline supported by the frozen medium and the fluid is maintained in a liquid state throughout the length of the pipeline.

    摘要翻译: 一种通过冷冻介质传输石油产品的方法,该冷冻介质在等于或高于冰点的温度下结构不稳定。 在环境温度下通常是气态的流体被液化并与待传输的石油产品混合。 然后将混合物通过由冷冻介质支撑的管道传输,并且流体在管道的整个长度内保持在液态。

    Nanoparticles for use with drag reducer additives and method of use

    公开(公告)号:US11519559B1

    公开(公告)日:2022-12-06

    申请号:US17145912

    申请日:2021-01-11

    申请人: Robert Hyatt

    发明人: Robert Hyatt

    IPC分类号: F17D1/17

    摘要: Nanoparticles may be used in the formulation of long chain poly-alpha-olefins, commercially known as Drag Reducer Additives (“DRA”). These nanoparticles may be embedded in the original DRA formulation and/or added at some point in the pipeline application so they can then be used to destroy the DRA polymer by cleaving, interrupting, or restructuring the DRA or otherwise breaking its bonds or to agglomerate or coagulate the polymer so it can be removed mechanically or chemically.

    Method to improve the efficiency of pipeline transportation of heavy oils

    公开(公告)号:US10851314B2

    公开(公告)日:2020-12-01

    申请号:US16386821

    申请日:2019-04-17

    IPC分类号: C10G29/28 F17D1/17

    摘要: Disulfide oil (DSO) compounds recovered as a by-product of the mercaptan oxidation of a hydrocarbon refinery feedstock and their oxidized derivatives, oxidized disulfide oils (ODSO) are effective as a diluent to lower the viscosity and thereby improve the pipeline transportation properties of heavy oils, and particularly of wellhead crude oil. The use of the DSO and/or ODSO compounds as diluents converts an otherwise extremely low value or waste oil product into a valuable commodity that has utility in improving the transportation properties of heavy oils, particularly in oil field pipeline applications.

    Processing of oil by steam addition

    公开(公告)号:US10386018B2

    公开(公告)日:2019-08-20

    申请号:US15819239

    申请日:2017-11-21

    摘要: The invention relates to injecting steam into crude oil for several benefits, primarily of which is to remove salt by transferring the salt into the condensed water from the steam. Steam transfers salt via a different transfer mechanism and therefore doesn't require the high shear mixing of conventional water injection systems. As such, steam injection through a variety of procedures, is more efficient at gathering salt into water that itself is easier to remove from the crude oil.