Single Phase Microemulsions and In Situ Microemulsions for Cleaning Formation Damage
    1.
    发明申请
    Single Phase Microemulsions and In Situ Microemulsions for Cleaning Formation Damage 有权
    单相微乳液和原位微乳液用于清洁形成损伤

    公开(公告)号:US20090008091A1

    公开(公告)日:2009-01-08

    申请号:US12146647

    申请日:2008-06-26

    IPC分类号: E21B43/22

    CPC分类号: C09K8/524 C09K8/528 E21B37/08

    摘要: Single phase microemulsions (SPMEs) and in situ-formed microemulsions may be used to clean up and remove non-polar materials from reservoir production zones of oil and gas wells. This clean up occurs by solubilization of the non-polar material into the microemulsion when the treatment fluid contacts the non-polar material. An in situ microemulsion may be formed when one or more surfactant and a polar phase (e.g. water or brine), and eventually some small amount of organic phase, contacts the reservoir formation and solubilizes the non-polar material encountered in the porous media. The microemulsions are effective for removing the formation damage caused by non-polar materials which include, but are not necessarily limited to oil-based mud, synthetic-based mud, paraffins, asphaltenes, emulsions, slugs, and combinations thereof.

    摘要翻译: 单相微乳液(SPME)和原位形成的微乳液可用于从油气井油藏生产区清理和除去非极性物质。 当处理流体接触非极性材料时,通过将非极性材料溶解到微乳液中来进行清洁。 当一种或多种表面活性剂和极性相(例如水或盐水)和最终少量的有机相接触储层形成并​​溶解在多孔介质中遇到的非极性材料时,可以形成原位微乳液。 微乳液对于去除由非极性材料引起的地层损伤是有效的,其包括但不一定限于油基泥浆,合成基泥浆,石蜡,沥青质,乳液,s块及其组合。

    Single phase microemulsions and in situ microemulsions for cleaning formation damage
    2.
    发明授权
    Single phase microemulsions and in situ microemulsions for cleaning formation damage 有权
    单相微乳液和原位微乳液用于清洁地层损伤

    公开(公告)号:US08091646B2

    公开(公告)日:2012-01-10

    申请号:US12146647

    申请日:2008-06-26

    IPC分类号: E21B37/00

    CPC分类号: C09K8/524 C09K8/528 E21B37/08

    摘要: Single phase microemulsions (SPMEs) and in situ-formed microemulsions may be used to clean up and remove non-polar materials from reservoir production zones of oil and gas wells. This clean up occurs by solubilization of the non-polar material into the microemulsion when the treatment fluid contacts the non-polar material. An in situ microemulsion may be formed when one or more surfactant and a polar phase (e.g. water or brine), and eventually some small amount of organic phase, contacts the reservoir formation and solubilizes the non-polar material encountered in the porous media. The microemulsions are effective for removing the formation damage caused by non-polar materials which include, but are not necessarily limited to oil-based mud, synthetic-based mud, paraffins, asphaltenes, emulsions, slugs, and combinations thereof.

    摘要翻译: 单相微乳液(SPME)和原位形成的微乳液可用于从油气井油藏生产区清理和除去非极性物质。 当处理流体接触非极性材料时,通过将非极性材料溶解到微乳液中来进行清洁。 当一种或多种表面活性剂和极性相(例如水或盐水)和最终少量的有机相接触储层形成并​​溶解在多孔介质中遇到的非极性材料时,可以形成原位微乳液。 微乳液对于去除由非极性材料引起的地层损伤是有效的,其包括但不一定限于油基泥浆,合成基泥浆,石蜡,沥青质,乳液,s块及其组合。

    Apparatus and method for cementing a borehole
    3.
    发明授权
    Apparatus and method for cementing a borehole 有权
    用于固井的装置和方法

    公开(公告)号:US08720560B2

    公开(公告)日:2014-05-13

    申请号:US13268115

    申请日:2011-10-07

    IPC分类号: E21B33/13 E21B36/00

    摘要: In aspects, the disclosure provides a method for cementing a borehole that includes selecting a location in the borehole for cementing. The method further includes providing a cement slurry comprising a cement and shape memory members having a first shape, the shape memory members configured to expand from the first shape to a second shape upon application of heat to the shape memory members, placing the cement slurry in the selected space and heating the shape memory members in the selected space to attain the second shape.

    摘要翻译: 在一些方面,本公开提供了一种用于固井的方法,其包括选择井眼中用于固井的位置。 该方法还包括提供一种包括水泥浆和具有第一形状的形状记忆元件的水泥浆,所述形状记忆元件配置成在向形状记忆元件施加​​热量时将第一形状膨胀至第二形状,将水泥浆置于 所选择的空间并加热所选择的空间中的形状记忆部件以获得第二形状。

    Methods of gravel packing long interval wells
    4.
    发明授权
    Methods of gravel packing long interval wells 有权
    砾石填充长间隔井的方法

    公开(公告)号:US08186433B2

    公开(公告)日:2012-05-29

    申请号:US12537872

    申请日:2009-08-07

    IPC分类号: E21B43/04 E21B43/26

    摘要: Changing concentrations of brine in a gravel pack carrier fluid gelled with a viscoelastic surfactant (VES) increases the fluid efficiency for gravel packing long interval wells, such as wellbore producing interval greater than about 100 feet (about 30 m). VES-gelled fluids used as gravel packing fluids herein also include surfactants, fluid loss control agents, internal breakers and brine in addition to the grave. The viscoelasticity of fluid system can suspend and deliver high concentration of the gravels while reducing carrier fluid volume.

    摘要翻译: 用粘弹性表面活性剂(VES)凝胶化的砾石充填载体流体中盐水的变化浓度增加了用于砾石填充长间隔井的流体效率,例如大于约100英尺(约30m)的井眼产生间隔。 用作砾石填充液的VES凝胶流体本身还包括表面活性剂,流体损失控制剂,内部破碎剂和除了坟墓之外的盐水。 流体系统的粘弹性可以在降低载体流体体积的同时悬浮并输送高浓度的砾石。

    Controlling Coal Fines in Coal Bed Operations
    5.
    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。

    Use of foam shape memory polymer to transport acid or other wellbore treatments
    6.
    发明授权
    Use of foam shape memory polymer to transport acid or other wellbore treatments 有权
    使用泡沫形状记忆聚合物来运输酸或其他井眼处理

    公开(公告)号:US08240392B2

    公开(公告)日:2012-08-14

    申请号:US12565120

    申请日:2009-09-23

    IPC分类号: E21B33/12 E21B36/00

    摘要: An embodiment provides a device that includes a shape memory member having a sealed outer surface and a permeable inner mass and a selected fluid placed and sealed within the inner mass at a first temperature. The selected fluid is released from the inner mass when the shape memory member is heated to a second temperature.

    摘要翻译: 一个实施例提供了一种装置,其包括具有密封的外表面和可渗透的内部质量的形状记忆元件以及在第一温度下放置和密封在内部质量块内的选定流体。 当形状记忆部件被加热到第二温度时,所选择的流体从内部质量释放。

    Method of Mitigating Corrosion Rate of Oilfield Tubular Goods
    7.
    发明申请
    Method of Mitigating Corrosion Rate of Oilfield Tubular Goods 审中-公开
    降低油田管材腐蚀速率的方法

    公开(公告)号:US20110100630A1

    公开(公告)日:2011-05-05

    申请号:US12911019

    申请日:2010-10-25

    IPC分类号: E21B43/16 C09K8/54

    摘要: Acid-soluble cupric acetate may used in conjunction with potassium iodide to generate cuprous iodide (CuI) as an acid corrosion inhibition aid. A suitable corrosion inhibitor together with the aid protects steel surfaces in an acid environment, for instance, while acid fracturing or matrix acidizing subterranean formations. Cupric acetate monohydrate may be used with an alkali metal iodide salt such as potassium iodide or sodium iodide to generate cuprous iodide in situ in aqueous acid solutions. Use of cupric acetate provides a somewhat delayed reaction rate with potassium iodide to generate the desired product, cuprous iodide, which has very low solubility in acid systems. The method includes delayed and in situ production of cuprous iodide for enhancing performance of commercially available corrosion inhibitors, commonly referred to as intensifying the effect of the corrosion inhibitor (corrosion inhibitor intensifier or simply an intensifier).

    摘要翻译: 酸溶性醋酸铜可与碘化钾结合使用,产生碘化亚铜(CuI)作为酸缓蚀助剂。 合适的防腐剂与助剂一起在酸性环境中保护钢表面,例如酸性压裂或基质酸化地下地层。 醋酸铜一水合物可与碱金属碘化物盐如碘化钾或碘化钠一起使用,以在酸性水溶液中原位生成碘化亚铜。 使用乙酸铜提供与碘化钾稍微延迟的反应速率以产生所需产物,碘化亚铜在酸性体系中具有非常低的溶解度。 该方法包括延迟和原位生产碘化亚铜以提高市售的腐蚀抑制剂的性能,通常称为增强腐蚀抑制剂(防腐剂增强剂或仅仅增强剂)的作用。

    Method for Improving the Clean-Up of Emulsified Acid Fluid Systems
    8.
    发明申请
    Method for Improving the Clean-Up of Emulsified Acid Fluid Systems 有权
    改善乳化酸流体系统清洁的方法

    公开(公告)号:US20110303414A1

    公开(公告)日:2011-12-15

    申请号:US12815041

    申请日:2010-06-14

    IPC分类号: E21B43/16 C09K8/82

    摘要: Using a complex emulsion for treating a subterranean formation, such as to dissolve minerals therein (e.g. carbonates, scales, and/or filter cake) to improve permeability, substantially improves post treatment fluid clean-up for improved hydrocarbon production. The complex emulsion is made by mixing an acid aqueous phase with an oil external microemulsion to give an initial product, where the acid aqueous phase is an external phase and the microemulsion is an internal phase. Then the initial product is mixed with a second oil (e.g. xylene, diesel, toluene, kerosene, other aromatics, refined hydrocarbons and the like) containing an emulsifier to make a complex emulsion.

    摘要翻译: 使用复合乳液来处理地层,例如溶解其中的矿物质(例如碳酸盐,鳞屑和/或滤饼)以提高渗透性,基本上改进了后处理流体清洁以改善碳氢化合物生产。 复合乳液通过将酸性水相与油外部微乳液混合来制备初始产物,其中酸性水相是外部相,微乳液是内部相。 然后将初始产物与含有乳化剂的第二种油(例如二甲苯,柴油,甲苯,煤油,其它芳族化合物,精制烃等)混合以制备复合乳液。

    Controlling Coal Fines in Coal Bed Operations
    9.
    发明申请
    Controlling Coal Fines in Coal Bed Operations 失效
    煤矿作业控煤

    公开(公告)号:US20100000734A1

    公开(公告)日:2010-01-07

    申请号:US12546763

    申请日:2009-08-25

    IPC分类号: E21B43/267

    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多数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同的情况下保持的时间长得多 用过的。

    Methods and Compositions for Fracturing Subterranean Formations
    10.
    发明申请
    Methods and Compositions for Fracturing Subterranean Formations 有权
    压裂地下地层的方法和组成

    公开(公告)号:US20080202744A1

    公开(公告)日:2008-08-28

    申请号:US11679018

    申请日:2007-02-26

    IPC分类号: C09K8/00

    摘要: Viscoelastic surfactant (VES) gelled aqueous fluids containing water, a VES, an internal breaker, a VES stabilizer, a fluid loss control agent and a viscosity enhancer are useful as treating fluids and particularly as fracturing fluids for subterranean formations. These VES-based fluids have faster and more complete clean-up than polymer-based fracturing fluids. The use of an internal breaker permits ready removal of the unique VES micelle based pseudo-filter cake with several advantages including reducing the typical VES loading and total fluid volume since more VES fluid stays within the fracture, generating a more optimum fracture geometry for enhanced reservoir productivity, and treating reservoirs with permeability above the present VES limit of approximately 400 md to at least 2000 md.

    摘要翻译: 粘弹性表面活性剂(VES)胶凝含水的含水流体,VES,内部破碎剂,VES稳定剂,流体损失控制剂和粘度增强剂可用作处理流体,特别是用于地下地层的压裂流体。 这些基于VES的流体比基于聚合物的压裂液具有更快和更完整的清理。 内部断路器的使用允许准备移除独特的基于VES胶束的假滤饼,具有几个优点,包括降低典型的VES载荷和总体积体积,因为更多的VES流体停留在裂缝内,为增强的储层产生更优化的裂缝几何形状 生产力,并处理渗透率高于目前VES极限约400 md至2000 md的油藏。