Rheology controlled heterogeneous particle placement in hydraulic fracturing
    2.
    发明授权
    Rheology controlled heterogeneous particle placement in hydraulic fracturing 有权
    水力压裂中流变控制异质颗粒放置

    公开(公告)号:US07798224B2

    公开(公告)日:2010-09-21

    申请号:US11769009

    申请日:2007-06-27

    IPC分类号: E21B43/267 E21B47/00

    摘要: A method of treating a subterranean formation penetrated by a wellbore includes preparing a treatment fluid with shear thinning, non-monotonic rheological properties, injecting the treatment fluid into the subterranean formation, and inducing shear rate softening phase transition in the treatment fluid. The non-monotonic rheology properties can be such that in the relationship between shear stress (σ) versus strain rate ({dot over (γ)}), where {dot over (γ)}1

    摘要翻译: 处理由井筒渗透的地层的方法包括制备具有剪切稀化,非单调流变特性的处理流体,将处理流体注入到地下地层中,以及诱导处理流体中的剪切速率软化相变。 非单调流变学性质可以是在剪切应力(&sgr)与应变速率({dot over(γ)})之间的关系中,其中{dot over(γ)} 1 <{dot over(γ)} 2 <{dot over(γ)} 3 <{dot over(γ)} 4,剪切应力值为&sgr; 1&sgr; 2&sgr; 3&nlE;&sgr; 4和&sgr; 3& 在裂缝中不均匀地沉积支撑剂或固体酸。 断裂地层的系统包括压裂流体,注入压裂流体以在地层中传播断裂的井眼,以及速率控制器,以最小体积速率将压裂流体注入到地层中以提供剪切应力 在断裂的入口超过&2; 2。 该方法和系统可以用支撑剂或固体酸实现异质颗粒的放置。

    Drilling and fracturing fluid
    4.
    发明授权
    Drilling and fracturing fluid 失效
    钻井和压裂液

    公开(公告)号:US08627889B2

    公开(公告)日:2014-01-14

    申请号:US11862781

    申请日:2007-09-27

    IPC分类号: E21B43/26 E21B7/00

    摘要: A method of fracturing a subterranean formation while drilling a well includes the steps of preparing a fluid useful for drilling a wellbore into the formation; drilling the wellbore into the formation with the fluid; acidizing the fluid such that the acid soluble additive is degraded; and fracturing the formation with the fluid in the wellbore to create a channel in the formation.

    摘要翻译: 在钻井的同时破碎地层的方法包括以下步骤:制备用于将井眼钻入地层中的流体; 用流体将井眼钻入地层; 使流体酸化,使酸溶性添加剂降解; 并且用井眼中的流体压裂地层以在地层中形成通道。

    FLUIDS COMPRISING CHITOSAN CROSSLINKED BY TITANATE
    6.
    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
    8.
    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
    9.
    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。

    Polymeric microspheres as degradable fluid loss additives in oilfield applications
    10.
    发明授权
    Polymeric microspheres as degradable fluid loss additives in oilfield applications 失效
    聚合微球作为油田应用中的可降解流体损失添加剂

    公开(公告)号:US07703521B2

    公开(公告)日:2010-04-27

    申请号:US12353810

    申请日:2009-01-14

    IPC分类号: E21B33/13 E21B43/267

    摘要: Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water-in-water emulsion and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid for use within in a subterranean formation including crosslinking a polymer along the surface of microspheres in a water in water emulsion, isolating the microspheres from the emulsion, and introducing the microspheres into the subterranean formation. Methods and apparatus for forming a fluid to treat a subterranean formation including introducing a crosslinkable polymer, partitioning agent, and crosslinker into a solvent, crosslinking the crosslinkable polymer, isolating beads of the crosslinkable polymer from the partitioning agent, introducing the beads into a fluid for treating a subterranean formation.

    摘要翻译: 用于形成在地下地层内使用的流体的方法和装置,包括在水包油乳液中沿着微球表面交联聚合物,并将微球引入地下地层。 用于形成在地层内使用的流体的方法和装置,包括在水包油乳液中沿着微球表面交联聚合物,从微乳液中分离出微球体,并将微球引入到地层中。 用于形成用于处理地下地层的流体的方法和装置,包括将可交联聚合物,分配剂和交联剂引入溶剂中,交联可交联聚合物,将可交联聚合物的珠子与分配剂隔离,将珠粒引入用于 处理地层。