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    • 2. 发明授权
    • Sub-sea membrane separation system with temperature control
    • 海底膜分离系统具有温度控制
    • US06502635B1
    • 2003-01-07
    • US09886176
    • 2001-06-20
    • David R. UnderdownJohn R. Hampton
    • David R. UnderdownJohn R. Hampton
    • F21B4336
    • E21B43/01B01D53/22B01D61/00B01D61/10B01D61/12B01D61/20B01D61/22B01D63/06E21B43/017E21B43/36
    • A system and method for recovery of hydrocarbon gas and liquids from a sub-sea environment utilizing a sub-sea membrane separation system. The system includes a production string located in a sub-sea wellbore for removing hydrocarbons and contaminants from a sub-sea formation. At least one membrane separator for separating contaminants from hydrocarbons removed from the sub-sea formation is located underwater between the production string and a hydrocarbon collection tank such that a predetermined temperature of the hydrocarbons is obtained by the location of the membrane. In another embodiment, a tube is connected to a sub-sea production string for removing hydrocarbons and contaminants from a sub-sea wellbore. At least one membrane separator for separating contaminants from hydrocarbons in the tube is positioned between the production string and a hydrocarbon collection tank wherein the temperature of the hydrocarbons and contaminants is controlled by the location of the membrane.
    • 一种利用海底膜分离系统从海底环境回收烃类气体和液体的系统和方法。 该系统包括位于海底井下的生产线,以从海底地层中除去碳氢化合物和污染物。 至少一个用于将污染物从海底地层中去除的污染物分离的膜分离器位于生产管柱和烃收集罐之间,使得通过膜的位置获得烃的预定温度。 在另一个实施例中,管连接到海底生产线,用于从海底井眼去除烃和污染物。 用于从管中分离污染物与烃的至少一个膜分离器位于生产线和烃收集罐之间,其中烃和污染物的温度由膜的位置控制。
    • 6. 发明授权
    • Method for scale inhibition in a well penetrating a subterranean
formation
    • 在渗透地下地层的井的阻垢方法
    • US4741400A
    • 1988-05-03
    • US894152
    • 1986-08-07
    • David R. Underdown
    • David R. Underdown
    • C09K8/528E21B41/02
    • C09K8/528Y10S166/902Y10S507/927
    • In an improved method for inhibiting the formation of scale in a well penetrating a subterranean formation for the production of fluids from said formation, said method including injecting at least one scale inhibitor into said formation through said well so that said scale inhibitor is thereafter slowly released from said formation to inhibit the formation of scale, the improvement comprising: injecting at least one polymeric material into said well in an amount effective to prolong said scale formation inhibition, said polymeric material having a composition different from said scale inhibitor and being a copolymer derived from at least one first monomer having a maleic moiety and at least one second monomer selected from the group consisting of acrylic acid, methacrylic acid and mixtures thereof.
    • 在一种改进的方法中,用于抑制穿透地下地层中的水垢形成以用于从所述地层产生流体的规模的形成,所述方法包括通过所述井将至少一种防垢剂注入所述地层中,使得所述防垢剂之后缓慢释放 从所述形成物抑制水垢的形成,改进包括:以有效延长所述结垢抑制的量将至少一种聚合物材料注入所述孔中,所述聚合物材料具有不同于所述防垢剂的组成,并且是衍生的共聚物 由具有马来酸部分的至少一种第一单体和至少一种选自丙烯酸,甲基丙烯酸及其混合物的第二单体组成。
    • 7. 发明授权
    • Proppant charge and method
    • 支撑剂和方法
    • US4443347A
    • 1984-04-17
    • US494548
    • 1983-05-13
    • David R. UnderdownO. Howard Glaze
    • David R. UnderdownO. Howard Glaze
    • C09K8/62C09K8/80E21B43/267C09K3/00
    • C09K8/805C09K8/62E21B43/267Y10S507/924
    • A method is provided for propping a fracture in a subterranean formation which comprises injecting into a subterranean well a suspension in a carrier fluid of a pre-cured proppant charge, the pre-cured proppant charge being pre-cured prior to injection into the well, and comprising prior to injection into the well, resin coated sand particles most of which are composed of a single substrate particle with a thermoset resite coating thereon, the resite coating being one which, when it is the resin coating on sand particles of a proppant charge, produces a charge wherein at least one of: (a) the Conductivity Ratio thereof, throughout a given closure stress range, is greater than that of a charge of the uncoated sand particles having substantially the same particle size distribution; or (b) the Permeability Ratio thereof, throughout the stress range of about 2,000 to about 10,000 p.s.i., is at least about 30 perecnt that of a sintered bauxite charge of substantially the same particle size, the resin for the coating being at least one of: (1) a resole; or (2) a novolac.
    • 提供了一种用于在地层中支撑断裂的方法,其包括将预固化的支撑剂装料的载体流体中的悬浮液注入到地下井中,预固化的支撑剂装料在注入井之前被预固化, 并且包括在注入井之前,其中大部分由其上具有热固性涂层的单个基材颗粒组成的树脂涂覆的砂粒,所述沉积涂层是当支撑剂进料的砂粒上的树脂涂层时 产生电荷,其中在(a)其给定闭合应力范围内的(a)其电导率比中的至少一个大于具有基本上相同粒度分布的未涂覆的砂粒的电荷的电荷; 或(b)其渗透率在约2,000至约10,000psi的应力范围内,与基本上相同粒度的烧结铝土矿装料的渗透率至少约为30,涂层中的树脂为 :(1) 或(2)酚醛清漆。