Systems and Methods for In Situ Monitoring of Cement Slurry Locations and Setting Processes Thereof
    12.
    发明申请
    Systems and Methods for In Situ Monitoring of Cement Slurry Locations and Setting Processes Thereof 审中-公开
    水泥浆料位置现场监测系统与方法及设定流程

    公开(公告)号:US20140076549A1

    公开(公告)日:2014-03-20

    申请号:US13615681

    申请日:2012-09-14

    IPC分类号: E21B47/005

    CPC分类号: E21B47/0005

    摘要: Optical analysis systems may be useful in monitoring fluids relating to cementing operations in or near real-time, e.g., for location and/or the status of a cement setting process. For example, method may involve containing a cement slurry within a flow path, the cement slurry having a chemical reaction occurring therein; and optically interacting the cement slurry with an integrated computational element, thereby generating an output signal corresponding to a characteristic of the chemical reaction.

    摘要翻译: 光学分析系统可用于监测或接近实时地,例如用于水泥固定过程的位置和/或状态的与固井操作相关的流体。 例如,方法可以包括在流动路径内容纳水泥浆料,其中发生化学反应的水泥浆料; 并用积分的计算元素光学相互作用水泥浆料,由此产生对应于化学反应特性的输出信号。

    Methods of servicing wellbore with composition comprising ultra low density thermatek® slurries
    15.
    发明授权
    Methods of servicing wellbore with composition comprising ultra low density thermatek® slurries 有权
    用包含超低密度thermatek®浆料的组合物维修井筒的方法

    公开(公告)号:US07789149B2

    公开(公告)日:2010-09-07

    申请号:US11592932

    申请日:2006-11-03

    IPC分类号: E21B33/13

    摘要: A method of serving a wellbore comprising placing a slurry composition comprising an alkaline metal oxide, a chloride or phosphate salt, water, glass beads and a foaming agent into a wellbore and allowing the composition to set. A method of servicing a wellbore comprising foaming a slurry comprising magnesium oxide, water, a chloride or phosphate salt, and glass beads, wherein the slurry has a density of from about 4 to about 12 pounds per gallon, placing the slurry in a wellbore, and allowing the composition to set. A method of temporarily plugging a wellbore comprising placing in the wellbore a cement slurry comprising magnesium oxide, water, a chloride or phosphate salt, a foaming agent and beads, wherein the slurry has a density of from about 4 to about 12 pounds per gallon, allowing the composition to set, and removing the composition by contacting the set composition with acid.

    摘要翻译: 一种服务于井筒的方法,包括将包含碱金属氧化物,氯化物或磷酸盐,水,玻璃珠和发泡剂的浆料组合物放入井筒中并使组合物凝固。 一种维修井孔的方法,包括使包含氧化镁,水,氯化物或磷酸盐的玻璃珠和玻璃珠发泡浆料,其中浆料的密度为每加仑约4至约12磅,将浆料置于井眼中, 并允许组合物设定。 一种临时堵塞井眼的方法,包括将井眼中的包含氧化镁,水,氯化物或磷酸盐,发泡剂和珠的水泥浆放置在井筒中,其中浆料的密度为每加仑约4至约12磅, 允许组合物固化,并通过使该组合物与酸接触来除去组合物。

    Methods of retarding the setting of a cement composition using biodegradable monomers
    17.
    发明授权
    Methods of retarding the setting of a cement composition using biodegradable monomers 有权
    使用可生物降解的单体阻止水泥组合物凝固的方法

    公开(公告)号:US07350574B2

    公开(公告)日:2008-04-01

    申请号:US11158531

    申请日:2005-06-22

    IPC分类号: E21B33/13 E21B33/14

    摘要: Methods of retarding the setting of a cement composition comprise including one or more secondary amines substituted with a carboxyl group or salts thereof (e.g., 3-hydroxy N,N′-iminodisuccinic acid) in the cement composition. The inclusion of such materials in cement compositions may be highly beneficial. In wellbores having BHCT's of less than or equal to about 250° F., the use of the secondary amine as the set retarder ensures that the thickening time of the cement composition is sufficient to allow the cement composition to be pumped to its desired downhole location. Further, the secondary amine may be used in combination with conventional set retarders to enhance the ability of those retarders to increase the thickening time of the cement composition at higher BHCT's, e.g., from about 250° F. to about 525° F.

    摘要翻译: 阻止水泥组合物凝固的方法包括在水泥组合物中包括一个或多个被羧基取代的仲胺或其盐(例如3-羟基N,N'-亚氨基二琥珀酸)。 将这些材料包含在水泥组合物中可能是非常有益的。 在具有小于或等于约250°F的BHCT的孔筒中,使用仲胺作为凝结缓凝剂确保了水泥组合物的增稠时间足以使水泥组合物被泵送到其所需的井下位置 。 此外,仲胺可以与常规固化缓凝剂组合使用,以增强这些缓凝剂在较高BHCT下例如约250°F至约525°F时增加水泥组合物的增稠时间的能力。

    Methods of improving the shelf life of a cement composition comprising a coated gas-generating material
    19.
    发明授权
    Methods of improving the shelf life of a cement composition comprising a coated gas-generating material 有权
    包括涂覆气体发生材料的水泥组合物的保质期提高方法

    公开(公告)号:US07334638B2

    公开(公告)日:2008-02-26

    申请号:US11153666

    申请日:2005-06-15

    IPC分类号: E21B33/13

    摘要: According to various embodiments, methods of increasing a shelf life of a gas-generating material comprise: including a C8-C18 hydrocarbon in a mixture used to coat the gas-generating material. This gas-generating material may be used in a cement composition to generate gas therein after the composition has been placed in a wellbore. The coating surrounding the gas-generating material serves to delay the reaction for producing the gas until desired. The gas may serve to inhibit gas migration from an adjacent subterranean formation into and through the cement composition before it sets into a hard mass. Coating the gas-generating material with the mixture may ensure that it can be stored for a relatively long period of time (e.g., up to 1 year or longer) without being concerned that it might experience sintering and thus react prematurely.

    摘要翻译: 根据各种实施方案,提高气体发生材料的保存期限的方法包括:包含用于涂覆气体发生材料的混合物中的C 8 -C 18 -C 18烃, 生成材料。 在将组合物放置在井眼中之后,该气体发生材料可用于水泥组合物中以产生气体。 围绕气体发生材料的涂层用于延迟用于产生气体的反应直到期望。 气体可以用于在将其固化成硬质块之前,阻止气体从邻近的地层迁移到水泥组合物中并通过该水泥组合物。 用混合物涂覆气体发生材料可以确保其可以储存较长时间(例如长达1年或更长时间),而不用担心它可能经历烧结并因此过早反应。