USE OF ENCAPSULATED TRACERS
    11.
    发明申请
    USE OF ENCAPSULATED TRACERS 有权
    使用牵引器

    公开(公告)号:US20100307745A1

    公开(公告)日:2010-12-09

    申请号:US12477502

    申请日:2009-06-03

    IPC分类号: E21B47/00

    摘要: A process of making observations of a subterranean reservoir penetrated by a wellbore uses distinguishable sets of tracer particles and comprises steps of: (i) delivering a plurality of sets of tracer particles to respective subterranean locations via the wellbore, the particles in each set comprising a tracer substance which distinguishes that set form the other sets; (ii) causing or allowing the tracer substances to flow out from the tracer particles whilst the particles are at the respective subterranean locations; (iii) causing or allowing production of fluid out of said reservoir via the wellbore; and (iv) detecting the presence or absence of the tracer substances in the produced fluid. The tracer substances are sufficiently distinguishable from each other to enable a tracer substance detected in the produced fluid to identify the set of tracer particles from which it has come and hence identify the location from which it has come. The process may be used in conjunction with hydraulic fracturing, placing sets of particles at different locations within a fracture and/or in different fractures extending from a single wellbore.

    摘要翻译: 对井眼穿透的地下储层进行观测的过程使用可区分的示踪剂颗粒组,并且包括以下步骤:(i)经由井孔将多组示踪剂颗粒递送到相应的地下位置,每组中的颗粒包括 跟踪物质,其区别于其他集合; (ii)当所述颗粒在相应的地下位置时,导致或允许示踪物质从示踪剂颗粒流出; (iii)导致或允许通过井筒从所述储存器中产生流体; 和(iv)检测产生的流体中示踪物质的存在或不存在。 示踪剂物质彼此充分区分,以使在所产生的流体中检测到的示踪物质能够识别来自其​​的示踪剂颗粒组,并因此识别出来的位置。 该方法可以与水力压裂结合使用,将一组颗粒放置在裂缝内的不同位置和/或从单个井眼延伸的不同裂缝中。

    Use of encapsulated tracers
    13.
    发明授权
    Use of encapsulated tracers 有权
    使用封装示踪剂

    公开(公告)号:US09290689B2

    公开(公告)日:2016-03-22

    申请号:US12477502

    申请日:2009-06-03

    IPC分类号: E21B43/26 C09K8/62 E21B47/10

    摘要: A process of making observations of a subterranean reservoir penetrated by a wellbore uses distinguishable sets of tracer particles and comprises steps of: (i) delivering a plurality of sets of tracer particles to respective subterranean locations via the wellbore, the particles in each set comprising a tracer substance which distinguishes that set form the other sets; (ii) causing or allowing the tracer substances to flow out from the tracer particles whilst the particles are at the respective subterranean locations; (iii) causing or allowing production of fluid out of said reservoir via the wellbore; and (iv) detecting the presence or absence of the tracer substances in the produced fluid. The tracer substances are sufficiently distinguishable from each other to enable a tracer substance detected in the produced fluid to identify the set of tracer particles from which it has come and hence identify the location from which it has come. The process may be used in conjunction with hydraulic fracturing, placing sets of particles at different locations within a fracture and/or in different fractures extending from a single wellbore.

    摘要翻译: 对井眼穿透的地下储层进行观测的过程使用可区分的示踪剂颗粒组,并且包括以下步骤:(i)经由井孔将多组示踪剂颗粒递送到相应的地下位置,每组中的颗粒包括 跟踪物质,其区别于其他集合; (ii)当所述颗粒在相应的地下位置时,导致或允许示踪物质从示踪剂颗粒流出; (iii)导致或允许通过井筒从所述储存器中产生流体; 和(iv)检测产生的流体中示踪物质的存在或不存在。 示踪剂物质彼此充分区分,以使在所产生的流体中检测到的示踪物质能够识别来自其​​的示踪剂颗粒组,并因此识别出来的位置。 该方法可以与水力压裂结合使用,将一组颗粒放置在裂缝内的不同位置和/或从单个井眼延伸的不同裂缝中。

    DELAYED-GELATION SOLUTION
    17.
    发明申请
    DELAYED-GELATION SOLUTION 有权
    延迟解决方案

    公开(公告)号:US20070284102A1

    公开(公告)日:2007-12-13

    申请号:US11841199

    申请日:2007-08-20

    IPC分类号: E21B33/13

    CPC分类号: C09K8/572 C09K8/5045

    摘要: The invention concerns an aqueous delayed-gelation solution for use in hydrocarbon wells. According to the invention, the aqueous delayed-gelation solution a dissolved metal salt which, in use, hydrolyses to form a gel, wherein the solution contains suspended inorganic particles and the method comprises the steps of—providing the aqueous delayed-gelation solution, and—injecting the solution into the hydrocarbon well, whereby the suspended inorganic particles reduce or block the flow of the delayed-gelation solution to relatively low permeability formation zones thereby selectively placing the solution in a relatively high permeability formation zone.

    摘要翻译: 本发明涉及用于烃井的含水延迟凝胶化溶液。 根据本发明,水性延迟凝胶溶液是溶解的金属盐,其在使用中水解形成凝胶,其中溶液含有悬浮的无机颗粒,并且该方法包括以下步骤:提供水性延迟凝胶溶液,以及 将溶液注入烃井中,由此悬浮的无机颗粒减少或阻止延迟凝胶化溶液流向相对低渗透性的形成区域,从而选择性地将溶液置于相对高渗透性的形成区域中。

    Delayed-gelation solution
    18.
    发明授权
    Delayed-gelation solution 有权
    延迟凝胶溶液

    公开(公告)号:US07273101B2

    公开(公告)日:2007-09-25

    申请号:US10524364

    申请日:2003-08-20

    IPC分类号: E21B33/138

    CPC分类号: C09K8/572 C09K8/5045

    摘要: The invention concerns an aqueous delayed-gelation solution and a method of selectively placing a delayed-gelation solution in a hydrocarbon well. According to the invention, the aqueous delayed-gelation solution a dissolved metal salt which, in use, hydrolyses to form a gel, wherein the solution contains suspended inorganic particles and the method comprises the steps of—providing the aqueous delayed-gelation solution, and—injecting the solution into the hydrocarbon well, whereby the suspended inorganic particles reduce or block the flow of the delayed-gelation solution to relatively low permeability formation zones thereby selectively placing the solution in a relatively high permeability formation zone. Applications of the invention relate to the treatment of hydrocarbon wells.

    摘要翻译: 本发明涉及一种水性延迟凝胶化溶液和选择性地将延迟凝胶化溶液置于烃井中的方法。 根据本发明,水性延迟凝胶溶液是溶解的金属盐,其在使用中水解形成凝胶,其中溶液含有悬浮的无机颗粒,并且该方法包括以下步骤:提供水性延迟凝胶溶液,以及 将溶液注入烃井中,由此悬浮的无机颗粒减少或阻止延迟凝胶化溶液流向相对低渗透性的形成区域,从而选择性地将溶液置于相对高渗透性的形成区域中。 本发明的应用涉及烃井的处理。

    Delivery of particulate material below ground
    19.
    发明授权
    Delivery of particulate material below ground 有权
    交付颗粒材料在地下

    公开(公告)号:US09234415B2

    公开(公告)日:2016-01-12

    申请号:US12868177

    申请日:2010-08-25

    摘要: A wellbore fluid comprises an aqueous carrier liquid, hydrophobic particulate material suspended therein and a gas to wet the surface of the particles and bind them together as agglomerates. The hydrophobic particulate material has a specified maximum volume median particle size d50 of not more than 200 micron, and/or a minimum surface area of at least 30 m2 per liter. Agglomerates of the particles contain gas and so have a bulk density lower than the density of the particles. This reduces the rate of settling. The fluid is particularly envisaged as a slickwater fracturing fluid in which the suspended particles are proppant. The small particle size and/or substantial surface area increases the amount of gas which can be retained within agglomerates and so enhances the buoyancy of the agglomerates. The end result is that a greater proportion of a hydraulic fracture is propped open.

    摘要翻译: 井眼流体包括水性载体液体,悬浮在其中的疏水性颗粒材料和用于润湿颗粒表面的气体并将其作为附聚物结合在一起。 疏水性颗粒材料具有不大于200微米的特定最大体积中值粒径d 50和/或至少30m 2 / l的最小表面积。 颗粒的聚集体含有气体,因此其密度低于颗粒的密度。 这降低了沉降的速度。 流体特别设想为浮水压裂液,其中悬浮颗粒是支撑剂。 小的颗粒尺寸和/或实质的表面积增加了可以在聚集体内保留的气体的量,从而增强了附聚物的浮力。 最终的结果是水力裂缝的比例较大。

    DELIVERY OF PARTICULATE MATERIAL BELOW GROUND
    20.
    发明申请
    DELIVERY OF PARTICULATE MATERIAL BELOW GROUND 有权
    交付下面的颗粒材料

    公开(公告)号:US20120048555A1

    公开(公告)日:2012-03-01

    申请号:US12868201

    申请日:2010-08-25

    IPC分类号: E21B43/16 C09K8/62 E21B43/26

    摘要: A wellbore fluid comprising an aqueous carrier liquid, hydrophobic fibers suspended therein, hydrophobic particulate material also suspended in the carrier liquid, and a gas to wet the surfaces of the particles and fibers and bind them together as agglomerates. The wellbore fluid may be a slickwater fracturing fluid and may be used for fracturing a tight gas reservoir.Using a combination of hydrophobic particulate material, hydrophobic fibers and gas inhibits settling out of the particulate material from an aqueous liquid. Because the gas acts to wet the surfaces of both materials and agglomerates them, the particulate material is made to adhere to the fibers; the fibers form a network which hinders settling of the particulate material adhering to them, and the agglomerates contain gas and so have a bulk density which is less than the specific gravity of the solids contained in the agglomerates.

    摘要翻译: 包含水性载体液体的疏水性流体,悬浮在其中的疏水性纤维,还悬浮在载体液体中的疏水性颗粒材料,以及气体以湿润颗粒和纤维的表面并将其作为附聚物结合在一起。 井筒流体可以是一个滑水压裂液,并可用于压裂一个紧密的气藏。 使用疏水性颗粒材料,疏水性纤维和气体的组合可以防止从水性液体中沉淀出颗粒物质。 因为这些气体用来润湿两种材料的表面并使它们聚集,所以使颗粒材料粘附到纤维上; 纤维形成阻碍粘附在其上的颗粒材料的沉降的网络,并且附聚物含有气体,因此其堆积密度小于附聚物中所含固体的比重。