Using nanoparticles for water flow control in subterranean formations
    41.
    发明授权
    Using nanoparticles for water flow control in subterranean formations 有权
    使用纳米颗粒在地层中进行水流控制

    公开(公告)号:US08053397B2

    公开(公告)日:2011-11-08

    申请号:US12122847

    申请日:2008-05-19

    IPC分类号: C09K8/74

    摘要: Non-aqueous carrier fluids containing nano-sized particles in high concentration are effective for zone isolation and flow control in water shutoff applications for subterranean formations. The nanoparticles interact with water and solidify it to inhibit its flow, but do not have the same effect on hydrocarbons and thus selectively assist the production of hydrocarbons while suppressing water. Suitable nanoparticles include alkaline earth metal oxides, alkaline earth metal hydroxides, alkali metal oxides, alkali metal hydroxides, transition metal oxides, transition metal hydroxides, post-transition metal oxides, post-transition metal hydroxides, piezoelectric crystals, and/or pyroelectric crystals.

    摘要翻译: 含有高浓度纳米尺寸颗粒的非水载体流体对于用于地下地层的水切断应用中的区域隔离和流量控制是有效的。 纳米颗粒与水相互作用并使其固化以抑制其流动,但对碳氢化合物不具有相同的作用,因此有选择地协助烃的生产同时抑制水分。 合适的纳米颗粒包括碱土金属氧化物,碱土金属氢氧化物,碱金属氧化物,碱金属氢氧化物,过渡金属氧化物,过渡金属氢氧化物,过渡后金属氧化物,后过渡金属氢氧化物,压电晶体和/或热电晶体。

    In-flow control device utilizing a water sensitive media
    42.
    发明授权
    In-flow control device utilizing a water sensitive media 失效
    使用水敏介质的流量控制装置

    公开(公告)号:US07942206B2

    公开(公告)日:2011-05-17

    申请号:US12191921

    申请日:2008-08-14

    IPC分类号: E21B34/08 E21B43/08

    CPC分类号: E21B34/08

    摘要: An apparatus for controlling fluid flow into a tubular includes an in-flow control device having a plurality of flow paths; and a reactive media disposed in each of the flow paths. The reactive media may change permeability by interacting with a selected fluid such as water. Two or more of the flow paths may be hydraulically parallel. The reactive media may include a Relative Permeability Modifier. An associated method may include conveying the fluid via a plurality of flow paths; and controlling a resistance to flow in plurality of flow paths using a reactive media disposed in each of the flow paths. An associated system may include a wellbore tubular; an in-flow control device; a hydraulic circuit formed in the in-flow control device; and a reactive media disposed in the hydraulic circuit, the reactive media may change permeability by interacting with a selected fluid.

    摘要翻译: 用于控制流入管中的流体的装置包括具有多个流动路径的流入控制装置; 以及布置在每个流动路径中的反应介质。 反应介质可以通过与选定的流体例如水相互作用来改变渗透性。 两个或多个流路可以是液压平行的。 反应介质可以包括相对渗透性改性剂。 相关联的方法可以包括经由多个流动路径输送流体; 以及使用布置在每个流动路径中的反应介质来控制在多个流动路径中的流动阻力。 相关联的系统可以包括井筒管; 流量控制装置; 形成在流入控制装置中的液压回路; 以及设置在液压回路中的反应介质,反应介质可以通过与所选择的流体相互作用来改变渗透性。

    Re-Use of Surfactant-Containing Fluids
    43.
    发明申请
    Re-Use of Surfactant-Containing Fluids 有权
    重新使用含表面活性剂的流体

    公开(公告)号:US20110108270A1

    公开(公告)日:2011-05-12

    申请号:US12971557

    申请日:2010-12-17

    IPC分类号: E21B43/02

    摘要: The components of surfactant-laden fluids, such as those used in hydrocarbon recovery operations such as for stimulation, e.g. hydraulic fracturing, may be re-used and re-cycled into components for subsequent use in a wide range of similar or different operational fluids. In particular, aqueous fluids gelled with viscoelastic surfactants and having components therein to pseudo-crosslink the elongated VES micelles and for internal breaking may be separated into its component parts by relatively inexpensive methods such as filtration. One filtration method includes contacting the surfactant-containing fluid with a particle pack having particulate additives therein which filter out or extract fine solids from the fluid. In an alternate embodiment the surfactant-laden fluid is a nano- and/or micro-emulsion wellbore cleanup fluid.

    摘要翻译: 载有表面活性剂的流体的组分,例如在烃回收操作中使用的那些,例如用于刺激,例如, 水力压裂可以重新使用并重新循环到组件中,以便随后在广泛的相似或不同的操作流体中使用。 特别地,用粘弹性表面活性剂凝胶化并且其中含有组分的水性流体用于伪交联细长的VES胶束并且用于内部破裂可以通过相对便宜的方法例如过滤分离成其组分部分。 一种过滤方法包括使含表面活性剂的流体与其中具有颗粒添加剂的颗粒包装物接触,其中过滤掉或从流体中提取细小的固体。 在替代实施方案中,载有表面活性剂的流体是纳米和/或微乳液井筒清除液。

    Water Sensitive Porous Medium to Control Downhole Water Production and Method Therefor
    44.
    发明申请
    Water Sensitive Porous Medium to Control Downhole Water Production and Method Therefor 审中-公开
    水敏多孔介质控制井下水生产及其方法

    公开(公告)号:US20110005752A1

    公开(公告)日:2011-01-13

    申请号:US12835023

    申请日:2010-07-13

    IPC分类号: E21B43/34 E21B43/02

    CPC分类号: E21B34/08 E21B43/32

    摘要: Water production produced from a subterranean formation is inhibited or controlled by consolidated water sensitive porous medium (WSPM) packed within the flow path of the wellbore device container. The WSPM includes solid particles having a water hydrolyzable polymer at least partially coating the particles. The WSPM is packed under pressure within the flow path of the wellbore device container to consolidate it. The WSPM increases resistance to flow as water content increases in the fluid flowing through the flow path and decreases resistance to flow as water content decreases in the fluid flowing through the flow path.

    摘要翻译: 由地下地层产生的水生产由填充在井筒装置容器的流动路径内的固结的水敏多孔介质(WSPM)所抑制或控制。 WSPM包括具有至少部分地涂覆颗粒的水可水解聚合物的固体颗粒。 WSPM在井筒装置容器的流动路径内压力包装以将其固结。 当流过流动路径的流体中的水分含量增加时,WSPM增加了流动阻力,并且随着流过流动路径的流体的含水量降低,流体阻力降低。

    Multifunctional nanoparticles for downhole formation treatments
    45.
    发明授权
    Multifunctional nanoparticles for downhole formation treatments 有权
    用于井下形成处理的多功能纳米颗粒

    公开(公告)号:US07703531B2

    公开(公告)日:2010-04-27

    申请号:US12180111

    申请日:2008-07-25

    IPC分类号: E21B43/267

    摘要: An aqueous, viscoelastic fluid gelled with a viscoelastic surfactant (VES) is stabilized with an effective amount of an alkaline earth metal oxide alkaline earth metal hydroxide, alkali metal oxides, alkali metal hydroxides transition metal oxides, transition metal hydroxides, post-transition metal oxides, and post-transition metal hydroxides. These fluids are more stable and have a reduced or no tendency to precipitate, particularly at elevated temperatures, and may also help control fluid loss. When the particle size of the magnesium oxide or other particulate agent is a nanometer scale, for instance having a mean particle size of 100 nm or less, that scale may provide particle charges that use chemisorption, “crosslinking” and/or other chemistries to associate and stabilize the VES fluids, and also help trap or fixate formation fines when deposited into a proppant pack in a fracture.

    摘要翻译: 用粘弹性表面活性剂(VES)凝胶化的水性粘弹性流体用有效量的碱土金属氧化物碱土金属氢氧化物,碱金属氧化物,碱金属氢氧化物过渡金属氧化物,过渡金属氢氧化物,过渡金属氧化物 ,和过渡后金属氢氧化物。 这些流体更稳定并且具有降低或不降低沉淀的倾向,特别是在升高的温度下,也可以帮助控制流体损失。 当氧化镁或其它颗粒剂的粒径为纳米级,例如具有100nm或更小的平均粒度时,该刻度可以提供使用化学吸附,“交联”和/或其它化学物质结合的粒子电荷 并稳定VES流体,并且还有助于在沉积到裂缝中的支撑剂包中时捕获或固定成矿细粒。

    Unsaturated fatty acids and mineral oils as internal breakers for VES-gelled fluids
    46.
    发明授权
    Unsaturated fatty acids and mineral oils as internal breakers for VES-gelled fluids 有权
    不饱和脂肪酸和矿物油作为VES凝胶液的内部破碎剂

    公开(公告)号:US07696134B2

    公开(公告)日:2010-04-13

    申请号:US11849780

    申请日:2007-09-04

    IPC分类号: C09K8/60 E21B43/22

    摘要: Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities reduced (gels broken) by the direct or indirect action of a synergistic internal breaker composition that contains at least one first internal breaker that may be a mineral oil and a second breaker that may be an unsaturated fatty acid. The internal breakers may initially be dispersed oil droplets in an internal, discontinuous phase of the fluid. This combination of different types of internal breakers break the VES-gelled aqueous fluid faster than if one of the breaker types is used alone in an equivalent total amount.

    摘要翻译: 用粘弹性表面活性剂(VES)粘稠的流体可以通过协同内部破碎剂组合物的直接或间接作用使其粘度降低(凝胶破裂),其包含至少一种可以是矿物油的第一内部破碎剂,以及可以是矿物油的第二破碎剂 不饱和脂肪酸。 内部破碎机最初可以将油滴分散在流体的内部不连续相中。 不同类型的内部破碎机的这种组合使得VES胶凝的水性流体比单独使用其中一种断路器类型的等效总量更快。

    Concentrated suspension of particulate additives for fracturing and other fluids
    47.
    发明授权
    Concentrated suspension of particulate additives for fracturing and other fluids 失效
    用于压裂和其他流体的颗粒添加剂的浓缩悬浮液

    公开(公告)号:US07543644B2

    公开(公告)日:2009-06-09

    申请号:US11830299

    申请日:2007-07-30

    IPC分类号: E21B43/00 E21B43/26 E21B43/16

    摘要: The handling, transport and delivery of particulate materials, particularly fine particles, may be difficult. Alkaline earth metal oxide particles such as magnesium oxide (MgO) may be suspended in glycerin and/or alkylene glycols such as propylene glycol up to loadings of 51 wt %. Such suspensions or slurries make it easier to deliver MgO and similar agents into fluids, such as aqueous fluids gelled with viscoelastic surfactants (VES). The MgO serves as stabilizers and/or fluid loss control agents for VES-gelled fluids used to treat subterranean formations, e.g. for well completion or stimulation in hydrocarbon recovery operations. The particle size of the magnesium oxide or other agent may be between 1 nanometer to 0.4 millimeter.

    摘要翻译: 颗粒材料,特别是细颗粒的处理,运输和输送可能是困难的。 碱土金属氧化物颗粒例如氧化镁(MgO)可以悬浮在丙三醇和/或亚烷基二醇如丙二醇中,其负载量为51wt%。 这种悬浮液或浆料使得更容易将MgO和类似的试剂递送到流体中,例如用粘弹性表面活性剂(VES)凝胶化的含水流体。 MgO用作用于处理地下地层的VES凝胶流体的稳定剂和/或流体损失控制剂,例如。 用于在油气回收操作中完成或刺激。 氧化镁或其它试剂的粒径可以在1毫米至0.4毫米之间。

    In-Flow Control Device Utilizing A Water Sensitive Media
    48.
    发明申请
    In-Flow Control Device Utilizing A Water Sensitive Media 失效
    使用水敏介质的流量控制装置

    公开(公告)号:US20090095484A1

    公开(公告)日:2009-04-16

    申请号:US12191921

    申请日:2008-08-14

    IPC分类号: E21B34/06

    CPC分类号: E21B34/08

    摘要: An apparatus for controlling fluid flow into a tubular includes an in-flow control device having a plurality of flow paths; and a reactive media disposed in each of the flow paths. The reactive media may change permeability by interacting with a selected fluid such as water. Two or more of the flow paths may be hydraulically parallel. The reactive media may include a Relative Permeability Modifier. An associated method may include conveying the fluid via a plurality of flow paths; and controlling a resistance to flow in plurality of flow paths using a reactive media disposed in each of the flow paths. An associated system may include a wellbore tubular; an in-flow control device; a hydraulic circuit formed in the in-flow control device; and a reactive media disposed in the hydraulic circuit, the reactive media may change permeability by interacting with a selected fluid.

    摘要翻译: 用于控制流入管中的流体的装置包括具有多个流动路径的流入控制装置; 以及布置在每个流动路径中的反应介质。 反应介质可以通过与选定的流体例如水相互作用来改变渗透性。 两个或多个流路可以是液压平行的。 反应介质可以包括相对渗透性改性剂。 相关联的方法可以包括经由多个流动路径输送流体; 以及使用布置在每个流动路径中的反应介质来控制在多个流动路径中的流动阻力。 相关联的系统可以包括井筒管; 流量控制装置; 形成在流入控制装置中的液压回路; 以及布置在液压回路中的反应介质,反应介质可以通过与所选择的流体相互作用来改变渗透性。

    Procedures and Compositions for Reservoir Protection
    49.
    发明申请
    Procedures and Compositions for Reservoir Protection 有权
    水库保护程序和组成

    公开(公告)号:US20080296024A1

    公开(公告)日:2008-12-04

    申请号:US11754786

    申请日:2007-05-29

    IPC分类号: E21B37/08

    摘要: A flow conduit having at least one orifice is placed in the vicinity of a flow source, which in one non-limiting embodiment may be a hydrocarbon reservoir. The flow pathway between the orifice and the source is temporarily blocked with a degradable barrier. Once the flow pathway is physically placed, the degradable barrier is removed under the influence of an acid, a solvent, time and/or temperature. The flow source and the flow pathways are at least partially covered (and flow blocked by) a temporary coating such as a pseudo-filter cake formed by a viscoelastic surfactant-gelled aqueous drill-in fluid, and the flow conduit is extended to the flow source. The pseudo-filter cake is removed when viscosity is reduced by an internal breaker, and flow is then allowed. The method is useful in one context of recovering hydrocarbons where the flow conduit is a telescoping sleeve or tube that contacts the borehole wall.

    摘要翻译: 具有至少一个孔口的流动管道被放置在流动源附近,在一个非限制性实施例中可以是烃储存器。 孔和源之间的流动路径暂时被可降解的屏障阻挡。 一旦流动路径物理放置,可降解屏障在酸,溶剂,时间和/或温度的影响下被去除。 流动源和流动通道至少部分地被覆盖(并且流动阻塞)临时涂层,例如由粘弹性表面活性剂凝胶化的水性钻入流体形成的假滤饼,并且流动管道延伸到流动 资源。 当通过内部断路器降低粘度时,去除伪滤饼,然后允许流动。 该方法在回收烃的一个上下文中是有用的,其中流动管道是与井眼壁接触的伸缩套筒或管。

    Use of mineral oils to reduce fluid loss for viscoelastic surfactant gelled fluids
    50.
    发明申请
    Use of mineral oils to reduce fluid loss for viscoelastic surfactant gelled fluids 有权
    使用矿物油减少粘弹性表面活性剂凝胶液的流失

    公开(公告)号:US20080103066A1

    公开(公告)日:2008-05-01

    申请号:US11970389

    申请日:2008-01-07

    IPC分类号: C09K8/035

    摘要: Fluids viscosified with viscoelastic surfactants (VESs) may have their fluid loss properties improved with at least one mineral oil which has a viscosity greater than 20 cps at ambient temperature. The mineral oil may initially be dispersed oil droplets in an internal, discontinuous phase of the fluid. In one non-limiting embodiment, the mineral oil is added to the fluid after it has been substantially gelled in an amount between about 0.2 to about 10% by volume.

    摘要翻译: 用粘弹性表面活性剂(VES)粘稠的流体可以在至少一种在环境温度下粘度大于20cps的矿物油改善其流体损失性能。 矿物油可以最初分散在液体的内部不连续相中。 在一个非限制性实施方案中,矿物油在其基本上以约0.2至约10体积%的量凝胶化之后加入到流体中。