Method to complex metals in aqueous treating fluids for VES-gelled fluids
    11.
    发明授权
    Method to complex metals in aqueous treating fluids for VES-gelled fluids 有权
    用于VES凝胶液的水处理液中金属络合的方法

    公开(公告)号:US09169431B2

    公开(公告)日:2015-10-27

    申请号:US13270025

    申请日:2011-10-10

    摘要: Aqueous treating fluids may include a viscoelastic surfactant (VES) and an aqueous base fluid, e.g. a drilling fluid, whereby the VES may increase and/or maintain the viscosity of the aqueous treating fluid. Metal ions may be present within the aqueous treating fluid that break, reduce, and/or digest the VES within the aqueous treating fluid. An effective amount of complexation particles may be added to the aqueous treating fluid for complexing at least a portion of these metal ions and thereby disallowing the metal ions from breaking, reducing, and/or altering the VES within the aqueous treating fluid.

    摘要翻译: 水性处理流体可以包括粘弹性表面活性剂(VES)和碱性水溶液,例如水。 钻井液,其中VES可以增加和/或维持水性处理流体的粘度。 金属离子可能存在于含水处理流体中,破坏,减少和/或消除水处理流体内的VES。 可以向水性处理流体中加入有效量的络合颗粒,以使至少一部分这些金属离子络合,从而不允许金属离子破坏,还原和/或改变水处理流体中的VES。

    Use of oil-soluble surfactants as breaker enhancers for VES-gelled fluids
    12.
    发明授权
    Use of oil-soluble surfactants as breaker enhancers for VES-gelled fluids 有权
    使用油溶性表面活性剂作为VES凝胶流体的破坏剂增强剂

    公开(公告)号:US08877693B2

    公开(公告)日:2014-11-04

    申请号:US12758336

    申请日:2010-04-12

    摘要: Fluids viscosified with viscoelastic surfactants (VESs) may have their viscosities reduced (gels broken) by the direct or indirect action of an internal breaker composition that contains at least one mineral oil, at least one polyalphaolefin oil, at least one saturated fatty acid and/or at least one unsaturated fatty acid. The internal breaker may initially be dispersed oil droplets in an internal, discontinuous phase of the fluid. In one non-limiting embodiment, the internal breaker, e.g. mineral oil, is added to the fluid after it has been substantially gelled. An oil-soluble surfactant is present to enhance or accelerate the reduction of viscosity of the gelled aqueous fluid.

    摘要翻译: 用粘弹性表面活性剂(VES)粘稠的流体可以通过含有至少一种矿物油,至少一种聚α-烯烃油,至少一种饱和脂肪酸和/或其混合物的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) 或至少一种不饱和脂肪酸。 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。 在一个非限制性实施例中,内部断路器,例如, 矿物油在其已基本凝胶化之后加入到流体中。 存在油溶性表面活性剂以增强或加速胶凝水性流体的粘度降低。

    Watercut sensor using reactive media to estimate a parameter of a fluid flowing in a conduit
    13.
    发明授权
    Watercut sensor using reactive media to estimate a parameter of a fluid flowing in a conduit 有权
    使用反应介质的水切割传感器来估计在导管中流动的流体的参数

    公开(公告)号:US08684077B2

    公开(公告)日:2014-04-01

    申请号:US12982307

    申请日:2010-12-30

    IPC分类号: E21B43/12 E01F1/00

    摘要: An apparatus for estimating a parameter of interest includes a conduit and a reactive media in the conduit. The reactive media interacts with a selected fluid component to control a flow parameter of the conduit. The apparatus also includes at least one sensor responsive to the flow parameter. The apparatus may be used for estimating a water content of a fluid flowing from a subterranean formation. The apparatus may include a flow path configured to convey fluid from the formation. The at least one sensor may be responsive to a pressure change in the flow path caused by interaction of the reactive media with water.

    摘要翻译: 用于估计感兴趣的参数的装置包括导管和导管中的反应性介质。 反应介质与选定的流体组分相互作用以控制导管的流动参数。 该装置还包括响应于流量参数的至少一个传感器。 该装置可以用于估计从地下地层流动的流体的含水量。 该装置可以包括构造成从地层输送流体的流路。 至少一个传感器可以响应由反应介质与水的相互作用引起的流动路径中的压力变化。

    Method and materials for proppant flow control with telescoping flow conduit technology
    14.
    发明授权
    Method and materials for proppant flow control with telescoping flow conduit technology 有权
    用伸缩流道技术支撑剂流量控制的方法和材料

    公开(公告)号:US08646523B2

    公开(公告)日:2014-02-11

    申请号:US12814630

    申请日:2010-06-14

    IPC分类号: E21B34/10 E21B43/26

    摘要: Porous objects, such as porous balls, may be employed within telescoping devices to control proppant flowback through a completed well during production. The telescoping devices may connect a reservoir face to a production liner without perforating. Acid-soluble plugs initially disposed within the telescoping devices may provide enough resistance to enable the telescoping devices to extend out from the production liner under hydraulic pressure. The plugs may then be dissolved in an acidic solution, which may also be used as the hydraulic extension fluid. After the plugs are substantially removed from the telescoping devices, the reservoir may be hydraulically fractured using standard fracturing processes. The porous balls may then be inserted into the telescoping devices to block proppant used in the fracturing process from flowing out of the reservoir with the production fluids.

    摘要翻译: 可以在伸缩装置内使用多孔物体,例如多孔球,以在生产期间控制支撑剂在完井中的回流。 伸缩装置可以将储存器面连接到生产衬里而不穿孔。 初始设置在伸缩装置内的酸溶性塞子可以提供足够的阻力,以使伸缩装置能够在液压下从生产衬里伸出。 然后可以将塞子溶解在酸性溶液中,其也可以用作液压延伸流体。 在插塞基本上从伸缩装置移除之后,可以使用标准压裂方法将储存器水力断裂。 然后可以将多孔球插入伸缩装置中以阻止在压裂过程中使用的支撑剂与生产流体一起流出储存器。

    Dual-functional breaker for hybrid fluids of viscoelastic surfactant and polymer
    15.
    发明授权
    Dual-functional breaker for hybrid fluids of viscoelastic surfactant and polymer 有权
    用于粘弹性表面活性剂和聚合物混合流体的双功能断路器

    公开(公告)号:US08383557B2

    公开(公告)日:2013-02-26

    申请号:US12815796

    申请日:2010-06-15

    IPC分类号: C09K8/64 E21B43/25

    摘要: Incorporating water-based polymer breakers, such as oxidizers, enzymes and/or acids, into a mixture of an oil and oil-soluble surfactants creates an emulsion that can then perform as a dual-functional breaker for reducing the viscosity of hybrid fluids gelled with both a viscoelastic surfactant (VES) and a polymer. The outer phase of the dual-functional breaker emulsion is oil, e.g. a mineral oil, containing an oil-soluble surfactant that will, over time and with heat, break the VES portion of the gel. As it does so, the polymer breaker in the internal aqueous phase will be released to then break the polymer portion of the gel. The polymer breaker will not start to break the polymer gel before the oil-soluble surfactant starts to break the VES gel. The overall breaking using the emulsion is slower as compared to introducing the polymer breaker and the oil-soluble surfactant in a non-emulsified form.

    摘要翻译: 将诸如氧化剂,酶和/或酸的水基聚合物破碎剂掺入油和油溶性表面活性剂的混合物中产生乳液,然后可以将其作为双功能破乳剂进行,以降低混合流体的粘度 粘弹性表面活性剂(VES)和聚合物。 双功能破乳剂乳液的外相是油,例如油。 一种矿物油,含有油溶性表面活性剂,随着时间的推移和热量将会破坏凝胶的VES部分。 如此,内部水相中的聚合物破碎剂将被释放,然后破坏凝胶的聚合物部分。 在油溶性表面活性剂开始破坏VES凝胶之前,聚合物破乳剂不会开始破裂聚合物凝胶。 与以非乳化形式引入聚合物破乳剂和油溶性表面活性剂相比,使用乳液的整体破坏较慢。

    Nano-Sized Particles for Stabilizing Viscoelastic Surfactant Fluids
    16.
    发明申请
    Nano-Sized Particles for Stabilizing Viscoelastic Surfactant Fluids 审中-公开
    用于稳定粘弹性表面活性剂流体的纳米尺寸颗粒

    公开(公告)号:US20120322700A1

    公开(公告)日:2012-12-20

    申请号:US13597554

    申请日:2012-08-29

    IPC分类号: C09K8/62

    摘要: An aqueous, viscoelastic fluid gelled with a viscoelastic surfactant (VES) is stabilized and improved 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. The additives may reduce the amount of VES required to maintain a given viscosity. These stabilized, enhanced, aqueous viscoelastic fluids may be used as treatment fluids for subterranean hydrocarbon formations, such as in hydraulic fracturing. The particle size of the magnesium oxide or other agent may be nanometer scale, which scale may provide unique particle charges that use chemisorption, crosslinking and/or other chemistries to associate and stabilize the VES fluids.

    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通过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,转变后稳定和改善 金属氧化物和过渡后金属氢氧化物。 这些流体更稳定,并且具有降低或没有沉淀的倾向,特别是在升高的温度下。 添加剂可以减少维持给定粘度所需的VES的量。 这些稳定的,增强的水性粘弹性流体可以用作地下烃地层的处理流体,例如在水力压裂中。 氧化镁或其它试剂的粒径可以是纳米级,其规模可以提供使用化学吸附,交联和/或其它化学物质来缔合和稳定VES流体的独特的颗粒电荷。

    Controlling Coal Fines in Coal Bed Operations
    17.
    发明申请
    Controlling Coal Fines in Coal Bed Operations 审中-公开
    煤矿作业控煤

    公开(公告)号:US20120283155A1

    公开(公告)日:2012-11-08

    申请号:US13551943

    申请日:2012-07-18

    IPC分类号: C09K8/80

    摘要: The migration of coal fines within a bed is reduced, inhibited or constrained by contacting the fines with nanoparticles, such as magnesium oxide crystals having an average particle size of about 30 nm. These nanoparticles may coat a proppant during the fracturing of a subterranean formation to produce methane from a coal bed therein. The nanoparticles may also treat a proppant pack in a fractured coal bed. The nanoparticles cause the coal fines to thus bind to or associate with the proppants. Thus, most of the coal fines entering fractures away from the near-wellbore region will be restrained or controlled near their origin or source and the production of methane at a desired level will be maintained much longer than a similar situation than where the nanoparticles are not used.

    摘要翻译: 通过使细粒与纳米颗粒接触,例如平均粒径约30nm的氧化镁晶体,床内煤粉的迁移减少,抑制或约束。 这些纳米颗粒可能在地层破裂过程中涂覆支撑剂,以从其中的煤层产生甲烷。 纳米颗粒还可以在裂缝煤层中处理支撑剂组合物。 纳米颗粒使煤粉因此与支撑剂结合或结合。 因此,从近井眼区域进入骨折的大部分煤粉将在其原产地或来源附近受到约束或控制,并且所需水平的甲烷生产将比与纳米颗粒不相似的情况保持更长时间 用过的。

    Fines migration control at their sources in water reservoirs
    18.
    发明授权
    Fines migration control at their sources in water reservoirs 有权
    在水库源头处罚款迁移控制

    公开(公告)号:US08278251B2

    公开(公告)日:2012-10-02

    申请号:US12502873

    申请日:2009-07-14

    申请人: Tianping Huang

    发明人: Tianping Huang

    IPC分类号: C09K8/74

    摘要: Water flood materials may contain an effective amount of a nano-sized particulate additive to inhibit or control the movement of fines within a subterranean formation during a water flood secondary recovery operation. The particulate additive may be an alkaline earth metal oxide, alkaline earth metal hydroxide, alkali metal oxide, alkali metal hydroxide, transition metal oxide, transition metal hydroxide, post-transition metal oxide, post-transition metal hydroxide, piezoelectric crystal, and/or pyroelectric crystal. The particle size of the magnesium oxide or other agent may be nanometer scale, which scale may provide unique particle charges that help control and stabilize the fines, e.g. clays.

    摘要翻译: 在洪水二次回收操作期间,防水材料可以含有有效量的纳米级颗粒添加剂以抑制或控制地下地层中的细粒的运动。 颗粒添加剂可以是碱土金属氧化物,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,过渡金属氢氧化物,压电晶体和/或 热电晶体。 氧化镁或其它试剂的粒度可以是纳米级,其规模可以提供有助于控制和稳定细粒的独特的颗粒电荷,例如, 粘土

    Combined Fracturing Outlet and Production Port for a Tubular String
    19.
    发明申请
    Combined Fracturing Outlet and Production Port for a Tubular String 审中-公开
    组合式压裂出口和管状柱的生产端口

    公开(公告)号:US20120186803A1

    公开(公告)日:2012-07-26

    申请号:US13011658

    申请日:2011-01-21

    IPC分类号: E21B43/00

    CPC分类号: E21B43/08 E21B43/26

    摘要: One or more openings in a zone have an adjacent screen assembly that is axially movable to a position away from the port when pressure in the tubing exceeds the annulus pressure by a predetermined value. Upon the differential being reduced below a predetermined value or when annulus pressure exceeds the tubing pressure, the screen moves over the port to block at least some of the solids in the formation or the well fluids from entering the tubing string. The screen movement can be aided by a bias force and the movement can be locked in to prevent the screen that has moved to a position over the port from moving back away from the port.

    摘要翻译: 区域中的一个或多个开口具有相邻的屏幕组件,当相对于管道中的压力超过环形空间压力预定值时,屏幕组件可轴向移动到远离端口的位置。 当差速器降低到预定值以下或当环空压力超过管道压力时,筛网移动通过端口以阻挡地层中的至少一些固体或井流体进入油管柱。 可以通过偏压力来辅助屏幕运动,并且可以锁定运动以防止移动到端口上方的屏幕从端口移回。