Viscoelastic composition with improved viscosity
    3.
    发明授权
    Viscoelastic composition with improved viscosity 有权
    具有改善粘度的粘弹性组合物

    公开(公告)号:US08887804B2

    公开(公告)日:2014-11-18

    申请号:US13257520

    申请日:2010-02-10

    IPC分类号: E21B43/22 C09K8/584

    摘要: The present invention relates to a method for the assisted recovery of crude oil from an underground formation, comprising: a) injecting, via at least one injection means in contact with the underground formation containing the crude oil, a liquid containing a mixture of at least: i) a salty aqueous medium, ii) a mixture of two zwitterionic viscosising surfactants or a mixture of two populations of said surfactants having a bimodal characteristic of the narrow distribution of Ri groups as defined below, in a weight content of between 1 and 0.05 wt %, preferably between 0.5 and 0.1 wt %, and more preferably between 0.4 and 0.15 wt %, such that the liquid has an oil/water interface tension of about 10 mN/m (milinewton per meter) or less as measured at room temperature (25° C.) and a viscosity of about 3 cPs or more as measured at a temperature of 80° C. for a shearing gradient of 10 s−1, and corresponding to formula (1) where the two Ri radicals of the two surfactants or surfactant populations have a difference in the number of carbon atoms thereof that is at least greater than or equal to 4. The method comprises using at least one production means located at a different location than that at which the liquid or the polymer has been fed in order to recover the liquid containing the crude oil.

    摘要翻译: 本发明涉及一种从地下地层辅助回收原油的方法,包括:a)通过与含有原油的地下地层接触的至少一种注入装置,将至少含有至少 :i)咸水性介质,ii)两种两性离子粘度表面活性剂或两种所述表面活性剂的混合物的混合物,其具有如下定义的如下定义的R 1基团的窄分布的双峰特征,重量含量为1至0.05 重量%,优选0.5至0.1重量%,更优选0.4至0.15重量%,使得液体在室温下测得的油/水界面张力为约10mN / m(每米米仑)或更小 (25℃),对于剪切梯度为10s -1,在80℃的温度下测量的粘度为约3cps或更高,并且对应于式(1),其中两个R 1的两个R 1基团 表面活性剂或表面活性剂 至少大于或等于4.这种方法包括使用至少一种生产装置,其位于与按顺序进料液体或聚合物的位置不同的位置 以回收含有原油的液体。

    Viscoelastic composition with improved stability
    5.
    发明申请
    Viscoelastic composition with improved stability 有权
    具有改善稳定性的粘弹性组合物

    公开(公告)号:US20120085534A1

    公开(公告)日:2012-04-12

    申请号:US12989013

    申请日:2009-04-17

    IPC分类号: E21B43/22

    CPC分类号: C09K8/584

    摘要: The present invention relates to a method for the enhanced recovery of oil from an underground formation, in which a viscoelastic aqueous fluid comprising at least one viscosifying zwitterionic surfactant is injected into the said formation and the said fluid is conducted through this formation in order to displace the oil from the formation and to recover it via a different point from that where the viscoelastic aqueous fluid was introduced, characterized in that the said fluid exhibits an amount of a base sufficient to bring its pH to a value of greater than 10, preferably of between approximately 11 and 13.

    摘要翻译: 本发明涉及一种用于从地下地层中提高油的回收率的方法,其中包含至少一种粘性两性离子表面活性剂的粘弹性含水流体被注入到所述地层中,并且所述流体通过该地层传导, 来自地层的油并且通过与引入粘弹性含水流体的那一点不同的点回收它,其特征在于所述流体显示出足以使其pH值达到大于10的碱的量,优选为 约11至13间。

    Viscoelastic Composition With Improved Viscosity
    7.
    发明申请
    Viscoelastic Composition With Improved Viscosity 有权
    具有改善粘度的粘弹性组合物

    公开(公告)号:US20120111562A1

    公开(公告)日:2012-05-10

    申请号:US13257520

    申请日:2010-02-10

    IPC分类号: E21B43/22

    摘要: The present invention relates to a method for the assisted recovery of crude oil from an underground formation, comprising: a) injecting, via at least one injection means in contact with the underground formation containing the crude oil, a liquid containing a mixture of at least: i) a salty aqueous medium, ii) a mixture of two zwitterionic viscosising surfactants or a mixture of two populations of said surfactants having a bimodal characteristic of the narrow distribution of Ri groups as defined below, in a weight content of between 1 and 0.05 wt %, preferably between 0.5 and 0.1 wt %, and more preferably between 0.4 and 0.15 wt %, such that the liquid has an oil/water interface tension of about 10 mN/m (milinewton per meter) or less as measured at room temperature (25° C.) and a viscosity of about 3 cPs or more as measured at a temperature of 80° C. for a shearing gradient of 10 s−1, and corresponding to formula (1) where the two Ri radicals of the two surfactants or surfactant populations have a difference in the number of carbon atoms thereof that is at least greater than or equal to 4. The method comprises using at least one production means located at a different location than that at which the liquid or the polymer has been fed in order to recover the liquid containing the crude oil.

    摘要翻译: 本发明涉及一种从地下地层辅助回收原油的方法,包括:a)通过与含有原油的地下地层接触的至少一种注入装置,将至少含有至少 :i)咸水性介质,ii)两种两性离子粘度表面活性剂或两种所述表面活性剂的混合物的混合物,其具有如下定义的如下定义的R 1基团的窄分布的双峰特征,重量含量为1至0.05 重量%,优选0.5至0.1重量%,更优选0.4至0.15重量%,使得液体在室温下测得的油/水界面张力为约10mN / m(每米米仑)或更小 (25℃),对于剪切梯度为10s -1,在80℃的温度下测量的粘度为约3cps或更高,并且对应于式(1),其中两个R 1的两个R 1基团 表面活性剂或表面活性剂 至少大于或等于4.这种方法包括使用至少一种生产装置,其位于与按顺序进料液体或聚合物的位置不同的位置 以回收含有原油的液体。

    Viscoelastic composition with improved stability
    8.
    发明授权
    Viscoelastic composition with improved stability 有权
    具有改善稳定性的粘弹性组合物

    公开(公告)号:US09080095B2

    公开(公告)日:2015-07-14

    申请号:US12989013

    申请日:2009-04-17

    IPC分类号: C09K8/80 E21B43/267 C09K8/584

    CPC分类号: C09K8/584

    摘要: The present invention relates to a method for the enhanced recovery of oil from an underground formation, in which a viscoelastic aqueous fluid comprising at least one viscosifying zwitterionic surfactant is injected into the said formation and the said fluid is conducted through this formation in order to displace the oil from the formation and to recover it via a different point from that where the viscoelastic aqueous fluid was introduced, characterized in that the said fluid exhibits an amount of a base sufficient to bring its pH to a value of greater than 10, preferably of between approximately 11 and 13.

    摘要翻译: 本发明涉及一种用于从地下地层中提高油的回收率的方法,其中包含至少一种粘性两性离子表面活性剂的粘弹性含水流体被注入到所述地层中,并且所述流体通过该地层传导, 来自地层的油并且通过与引入粘弹性含水流体的那一点不同的点回收它,其特征在于所述流体表现出足以使其pH值达到大于10的碱的量,优选为 约11至13间。

    AMINE ADDUCTS, DERIVATIVES THEREOF, METHODS FOR MAKING SUCH ADDUCTS AND DERIVATIVES, AND METHODS FOR USING SUCH ADDUCTS AND DERIVATIVES
    10.
    发明申请
    AMINE ADDUCTS, DERIVATIVES THEREOF, METHODS FOR MAKING SUCH ADDUCTS AND DERIVATIVES, AND METHODS FOR USING SUCH ADDUCTS AND DERIVATIVES 审中-公开
    胺助剂,其衍生物,制备此类添加剂和衍生物的方法,以及使用此类添加剂和衍生物的方法

    公开(公告)号:US20130161014A1

    公开(公告)日:2013-06-27

    申请号:US13724537

    申请日:2012-12-21

    摘要: An amine adduct is made by (1) forming an addition intermediate by heating a mixture comprising at least one diene and at least one unsaturated fatty acyl compound, and reacting the addition intermediate with a diamine to form the amine adduct, or by (2) reacting at least one unsaturated fatty acyl compound with at least one diamine to form an amine intermediate, and heating a mixture of the amidoamine intermediate and at least one diene to form the amine adduct, or by (3) reacting at least one unsaturated fatty tertiary amine compound with at least at least one diene to form the amine adduct. A surfactant composition is derived from the amine adduct and is particularly useful in a method for enhancing the recovery of oil from a reservoir having a production wellbore, comprising introducing an aqueous flooding fluid into the reservoir at one or more locations different from the location of the production wellbore, said fluid comprising the surfactant composition and recovering the oil through the production wellbore.

    摘要翻译: 通过(1)通过加热包含至少一种二烯和至少一种不饱和脂肪酰基化合物的混合物形成加成中间体,并使加成中间体与二胺反应形成胺加合物,或通过(2) 使至少一种不饱和脂肪酰基化合物与至少一种二胺反应形成胺中间体,并加热酰胺胺中间体和至少一种二烯的混合物以形成胺加合物,或通过(3)使至少一种不饱和脂肪三 胺化合物与至少一种二烯形成胺加合物。 表面活性剂组合物衍生自胺加合物,并且特别可用于增强从具有生产井眼的储层中回收油的方法,包括将水性驱油流体引导到不同于 所述流体包含表面活性剂组合物并通过生产井眼回收油。