FLUIDS COMPRISING CHITOSAN CROSSLINKED BY TITANATE
    13.
    发明申请
    FLUIDS COMPRISING CHITOSAN CROSSLINKED BY TITANATE 有权
    包含由钛酸酯交联的CHITOSAN的流体

    公开(公告)号:US20120277128A1

    公开(公告)日:2012-11-01

    申请号:US13097514

    申请日:2011-04-29

    IPC分类号: C09K8/68

    CPC分类号: C09K8/905 C09K8/68 C09K8/685

    摘要: The current application discloses fluids and methods for treating a subterranean formation penetrated by a wellbore. In one aspect, there is provided a fluid comprising chitosan and titanate, where the fluid has an increased viscosity compared with a solution containing chitosan without titanate. In another aspect, there is provided a method of using such fluid to treat a subterranean formation penetrated by a wellbore. The method may comprise mixing chitosan and titanate in a carrying medium, forming a gel comprising chitosan and titanate, introducing the gel into a subterranean formation, and treating the subterranean formation with the gel.

    摘要翻译: 本申请公开了用于处理由井眼渗透的地层的流体和方法。 在一个方面,提供了包含壳聚糖和钛酸盐的流体,其中与不含钛酸盐的壳聚糖的溶液相比,流体具有增加的粘度。 在另一方面,提供了一种使用这种流体来处理由井眼渗透的地层的方法。 该方法可以包括将壳聚糖和钛酸盐混合在携带介质中,形成包含壳聚糖和钛酸盐的凝胶,将凝胶引入地层,并用凝胶处理地下地层。

    High solids content slurries and methods
    15.
    发明授权
    High solids content slurries and methods 有权
    高固体含量的浆料和方法

    公开(公告)号:US08119574B2

    公开(公告)日:2012-02-21

    申请号:US12827475

    申请日:2010-06-30

    摘要: A slurry and method are disclosed for low damage gravel packing. The slurry comprises a solids mixture comprising a plurality of volume-averaged particle size distribution (PSD) modes such that a packed volume fraction (PVF) exceeds 0.75; a carrier fluid in an amount to provide a solids volume fraction (SVF) less than the PVF of the solids mixture; and a stability additive to inhibit settling of the solids mixture. The method comprises circulating the slurry into a wellbore to deposit the slurry downhole; terminating the slurry circulation for a period of time, wherein the stability additive inhibits settling of the solids mixture; and thereafter circulating the deposited slurry in contact with a surface of a screen. Stability additives disclosed include colloidal particles, hydratable polymer particles, and particles having an aspect ratio above 6.

    摘要翻译: 公开了一种用于低损伤砾石包装的浆料和方法。 该浆液包含一种包含多个体积平均粒度分布(PSD)模式的固体混合物,使得填充体积分数(PVF)超过0.75; 载体流体,其量提供小于固体混合物的PVF的固体体积分数(SVF); 以及稳定添加剂以抑制固体混合物的沉降。 该方法包括将浆料循环到井眼中以将井下的泥浆沉积; 终止浆料循环一段时间,其中稳定性添加剂抑制固体混合物的沉降; 然后使沉积的浆料与筛网的表面接触。 所公开的稳定添加剂包括胶体颗粒,可水合的聚合物颗粒和长宽比高于6的颗粒。

    FIBER LADEN ENERGIZED FLUIDS AND METHODS OF USE THEREOF
    16.
    发明申请
    FIBER LADEN ENERGIZED FLUIDS AND METHODS OF USE THEREOF 有权
    纤维增强能量流体及其使用方法

    公开(公告)号:US20100175874A1

    公开(公告)日:2010-07-15

    申请号:US12703225

    申请日:2010-02-10

    IPC分类号: E21B43/26 E21B43/22

    摘要: The present invention relates to aqueous oilfield treatment fluids containing a gas component and fibers, wherein the fluids may further include a viscosifying agent and/or proppant. The fluids have good proppant suspension and transport properties as well as excellent gas phase stability. Use of fluids comprising an aqueous medium, a gas component, viscosifying agent, and fibers for hydraulically fracturing a subterranean formation, cleanup operations, and gravel packing a wellbore, are also disclosed.

    摘要翻译: 本发明涉及含有气体组分和纤维的含水油田处理流体,其中流体可进一步包括增粘剂和/或支撑剂。 流体具有良好的支撑剂悬浮和输送性能以及优异的气相稳定性。 还公开了包含含水介质,气体组分,增粘剂和用于水力压裂地层的纤维,净化操作和砾石填充井眼的流体的使用。

    Fiber laden energized fluids and methods of use
    17.
    发明授权
    Fiber laden energized fluids and methods of use 有权
    纤维充满活力的液体和使用方法

    公开(公告)号:US07665522B2

    公开(公告)日:2010-02-23

    申请号:US10939912

    申请日:2004-09-13

    摘要: The present invention relates to aqueous oilfield treatment fluids containing a gas component and fibers, wherein the fluids may further include a viscosifying agent and/or proppant. The fluids have good proppant suspension and transport properties as well as excellent gas phase stability. Use of fluids comprising an aqueous medium, a gas component, viscosifying agent, and fibers for hydraulically fracturing a subterranean formation, cleanup operations, and gravel packing a wellbore, are also disclosed.

    摘要翻译: 本发明涉及含有气体组分和纤维的含水油田处理流体,其中流体可进一步包括增粘剂和/或支撑剂。 流体具有良好的支撑剂悬浮和输送性能以及优异的气相稳定性。 还公开了包含含水介质,气体组分,增粘剂和用于水力压裂地层的纤维,净化操作和砾石填充井眼的流体的使用。

    Degradable additive for viscoelastic surfactant based fluid systems
    18.
    发明授权
    Degradable additive for viscoelastic surfactant based fluid systems 有权
    用于粘弹性表面活性剂的流体系统的可降解添加剂

    公开(公告)号:US07219731B2

    公开(公告)日:2007-05-22

    申请号:US11159023

    申请日:2005-06-22

    摘要: A method is given for treating a subterranean formation penetrated by a wellbore with a viscosified fluid. The fluid contains a solid hydrolysable polyacid that upon dissolution and hydrolysis releases an acid that is a breaker for the viscosifying system. Suitable solid hydrolysable polyacids include polylactic acid and polyglycolic acid. The fluid also contains a pH control agent, present in an amount sufficient to neutralize any acid present in the solid hydrolysable polyacid before the injection and to neutralize any acid generated by the solid hydrolysable polyacid during the injection, so that the acid breaker is not available to break the fluid during the injection. In one embodiment the viscosifier is a viscoelastic surfactant fluid system and the solid hydrolysable polyacid is of a size selected to be a fluid loss additive, for example in fracturing or gravel packing. In another embodiment, the solid hydrolysable polyacid is used in particles sufficiently small that they enter the pores of the formation. In either case, the viscosifier is broken after the solid releases more acid than can be neutralized by the pH control agent.

    摘要翻译: 给出了用增稠液体处理井眼渗透的地层的方法。 流体包含固体可水解的多酸,其在溶解和水解时释放酸,该酸是用于增粘体系的断裂剂。 合适的固体可水解的多元酸包括聚乳酸和聚乙醇酸。 流体还含有pH控制剂,其量足以中和注射前固体可水解的多元酸中存在的任何酸,并且在注射期间中和由固体可水解的多元酸产生的任何酸,使得酸破乳剂不可用 在注射期间打破流体。 在一个实施方案中,增粘剂是粘弹性表面活性剂流体系统,并且固体可水解的多元酸的尺寸被选择为流体损失添加剂,例如在压裂或砾石包装中。 在另一个实施方案中,固体可水解的多元酸以足够小的颗粒使用,使得它们进入地层的孔。 在任一种情况下,在固体释放比可以被pH控制剂中和的酸更多之后,粘稠剂被破坏。

    Controlling the stability of water in water emulsions
    19.
    发明授权
    Controlling the stability of water in water emulsions 有权
    控制水中乳液的稳定性

    公开(公告)号:US09475974B2

    公开(公告)日:2016-10-25

    申请号:US12869480

    申请日:2010-08-26

    摘要: This invention relates to compositions and methods of treating a surface in contact with a wellbore and/or a subterranean formation penetrated by a well bore, comprising forming a treatment composition comprising a rheological polymer, a partitioning agent, and a liquid medium; and injecting the treatment fluid into the well bore, wherein the treatment composition forms a heterogeneous mixture comprising a dispersed rheological polymer-rich phase and a partitioning agent-rich phase, and wherein the stability of the heterogeneous mixture is controlled by introducing a stability control agent. This invention relates to compositions and methods for forming a water in water emulsion, comprising a rheological polymer, a partitioning agent, a liquid medium; and a stability control agent, wherein the emulsion is a heterogeneous mixture comprising a dispersed rheological polymer-rich phase and a partitioning agent-rich phase.

    摘要翻译: 本发明涉及处理与由井眼渗透的井筒和/或地下地层接触的表面的组合物和方法,包括形成包含流变聚合物,分配剂和液体介质的处理组合物; 以及将所述处理流体注入所述井眼中,其中所述处理组合物形成包含分散的流变聚合物富集相和分配剂富相的不均匀混合物,并且其中所述非均相混合物的稳定性通过引入稳定性控制剂 。 本发明涉及用于形成水包油乳液的组合物和方法,其包含流变聚合物,分配剂,液体介质; 和稳定性控制剂,其中所述乳液是包含分散的流变聚合物富集相和富分配剂相的非均相混合物。

    High solids content slurries and methods
    20.
    发明授权
    High solids content slurries and methods 有权
    高固体含量的浆料和方法

    公开(公告)号:US08765646B2

    公开(公告)日:2014-07-01

    申请号:US13372589

    申请日:2012-02-14

    IPC分类号: C09K8/68

    摘要: A slurry and method are disclosed for low damage gravel packing. The slurry comprises a solids mixture comprising a plurality of volume-averaged particle size distribution (PSD) modes such that a packed volume fraction (PVF) exceeds 0.75; a carrier fluid in an amount to provide a solids volume fraction (SVF) less than the PVF of the solids mixture; and a stability additive to inhibit settling of the solids mixture. The method comprises circulating the slurry into a wellbore to deposit the slurry downhole; terminating the slurry circulation for a period of time, wherein the stability additive inhibits settling of the solids mixture; and thereafter circulating the deposited slurry in contact with a surface of a screen. Stability additives disclosed include colloidal particles, hydratable polymer particles, and particles having an aspect ratio above 6.

    摘要翻译: 公开了一种用于低损伤砾石包装的浆料和方法。 该浆液包含一种包含多个体积平均粒度分布(PSD)模式的固体混合物,使得填充体积分数(PVF)超过0.75; 载体流体,其量提供小于固体混合物的PVF的固体体积分数(SVF); 以及稳定添加剂以抑制固体混合物的沉降。 该方法包括将浆料循环到井眼中以将井下的泥浆沉积; 终止浆料循环一段时间,其中稳定性添加剂抑制固体混合物的沉降; 然后使沉积的浆料与筛网的表面接触。 所公开的稳定添加剂包括胶体颗粒,可水合的聚合物颗粒和长宽比高于6的颗粒。