Alkylaromatic sulfonates for enhanced oil recovery process
    11.
    发明授权
    Alkylaromatic sulfonates for enhanced oil recovery process 有权
    用于提高采油工艺的烷基芳族磺酸盐

    公开(公告)号:US09587168B2

    公开(公告)日:2017-03-07

    申请号:US14039377

    申请日:2013-09-27

    IPC分类号: C09K8/584 E21B43/16

    CPC分类号: C09K8/584 E21B43/16

    摘要: An alkylaromatic sulfonate is disclosed wherein the alkyl group contains a distribution of alkyl chain lengths which comprise greater than 15 weight percent and up to about 35 weight percent of C30 to C58. Also disclosed is a process for preparing an alkylaromatic sulfonate and its use in recovering crude oil from a subterranean hydrocarbon containing formation.

    摘要翻译: 公开了烷基芳族磺酸盐,其中烷基含有包含大于15重量%和至多约35重量%的C 30至C 58的烷基链长度分布。 还公开了一种制备烷基芳族磺酸盐的方法及其在从含地下烃的地层中回收原油的用途。

    Rheological methods to determine the predisposition of a polymer to form network or gel
    16.
    发明授权
    Rheological methods to determine the predisposition of a polymer to form network or gel 有权
    确定聚合物形成网络或凝胶的倾向的流变学方法

    公开(公告)号:US09200232B2

    公开(公告)日:2015-12-01

    申请号:US13605677

    申请日:2012-09-06

    摘要: A method is provided to determine the predisposition of a polymer to form network or gel in a lubricating oil which comprises obtaining a composition of a polymer in a diluent, measuring the shear stress as a function of shear rate, determining the yield stress using the Herschel-Bulkley equation and assessing the yield stress. A method is also provided to determine the predisposition of a polymer to form network or gel in a lubricating oil which comprises obtaining a composition of a polymer in a diluent, determining at least one of (i) the storage modulus G′ and loss modulus G″ of the composition by subjecting the composition to sinusoidal (oscillating) stress or strain of certain amplitude and frequency, (ii) the phase lag (angle) of the response strain or stress δ, or (iii) the tangent (tan) δ, and (c) assessing at least one of the G′, G″, δ, or tan(δ) determined.

    摘要翻译: 提供了一种确定聚合物在润滑油中形成网络或凝胶的倾向的方法,其包括在稀释剂中获得聚合物的组成,测量作为剪切速率的函数的剪切应力,使用赫歇尔测定屈服应力 -Bulkley方程并评估屈服应力。 还提供了一种确定聚合物在润滑油中形成网络或凝胶的倾向的方法,其包括获得稀释剂中聚合物的组成,确定以下中的至少一个:(i)储能模量G'和损耗模量G 通过使组合物经受一定幅度和频率的正弦(振荡)应力或应变,(ii)响应应变或应力δ的相位滞后(角度),或(iii)正切(tanδ)δ, 和(c)评估确定的G',G“,δ或tan(δ)中的至少一个。