Method for providing modified cement compositions, dry mortars and cement-free mixtures
    4.
    发明授权
    Method for providing modified cement compositions, dry mortars and cement-free mixtures 有权
    提供改性水泥组合物,干砂浆和无水泥混合物的方法

    公开(公告)号:US09505658B2

    公开(公告)日:2016-11-29

    申请号:US14362963

    申请日:2012-12-04

    摘要: The present invention relates to methods for providing modified cement compositions having increased slip resistance and/or a decreased setting time in comparison to cement compositions comprising from 1 to 10 weight percent redispersible polymer powder (RDP) and water soluble cellulose ether in a specific amount from 0.1 to 1.0 weight percent, based on the total dry weight of said composition. Also provided are dry mortars comprising cement, RDP, water soluble cellulose ether and one or more additives selected from gelatin, bentonite and combinations thereof for use in such methods, and cement-free mixtures comprising water soluble cellulose ether and one or more additives selected from gelatin, bentonite and combinations thereof which may be added to cement binder for use a for use in such methods.

    摘要翻译: 本发明涉及与含有1至10重量%的可再分散聚合物粉末(RDP)和特定量的水溶性纤维素醚的水泥组合物相比,提供具有增加的耐滑性和/或凝固时间降低的改性水泥组合物的方法。 0.1至1.0重量%,基于所述组合物的总干重。 还提供了包含水泥,RDP,水溶性纤维素醚和一种或多种选自明胶,膨润土及其组合的添加剂用于这些方法的干砂浆,以及包含水溶性纤维素醚和一种或多种添加剂的无水泥混合物, 明胶,膨润土及其组合,可加入水泥粘合剂中以用于此类方法。

    HARDENING ACCELERATOR COMPOSITION
    6.
    发明申请
    HARDENING ACCELERATOR COMPOSITION 有权
    硬化加速器组合物

    公开(公告)号:US20150291474A1

    公开(公告)日:2015-10-15

    申请号:US14420465

    申请日:2013-08-12

    IPC分类号: C04B22/00 C04B24/26

    摘要: The invention concerns a process for the preparation of a hardening accelerator composition by reaction of a water-soluble calcium compound with a water-soluble silicate compound, said reaction being carried out in the presence of an aqueous solution which contains a water-soluble comb polymer suitable as a plasticizer for hydraulic binders, wherein the water-soluble comb polymer is present as a copolymer which is produced by free radical polymerization in the presence of a phosphorylated monomer and a (meth)acrylic acid ester based polyether macromonomer.

    摘要翻译: 本发明涉及通过水溶性钙化合物与水溶性硅酸盐化合物的反应来制备硬化促进剂组合物的方法,所述反应在含有水溶性梳形聚合物的水溶液存在下进行 适合用作水硬性粘合剂的增塑剂,其中水溶性梳状聚合物作为共聚物存在,其通过在磷酸化单体和(甲基)丙烯酸酯基聚醚大分子单体的存在下通过自由基聚合制备。

    Processes for incorporating inert gas in a cement composition containing spherical beads
    7.
    发明申请
    Processes for incorporating inert gas in a cement composition containing spherical beads 有权
    将惰性气体掺入包含球形珠粒的水泥组合物中的方法

    公开(公告)号:US20050098317A1

    公开(公告)日:2005-05-12

    申请号:US10706431

    申请日:2003-11-12

    摘要: The present invention provides a process for forming cement in a well bore. In this process, a cement composition is formed that comprises a cement and one or more beads mixed with the cement. The cement composition containing the beads is displaced into the well bore, and an inert gas phase is introduced to the cement composition to control a density of the cement composition. The inert gas phase can be introduced by adding a gas generating material to the cement composition and/or a porous material to the cement composition. In an embodiment, the gas generating material is a nitrogen generating material that may be activated by an oxidizing agent. In another embodiment, the gas generating material is a hydrogen generating material, e.g., an aluminum powder. The present invention further provides a cement composition comprising a cement, one or more beads combined with the cement, and an inert gas phase created by, e.g., a gas generating material and/or a porous material.

    摘要翻译: 本发明提供一种在井眼中形成水泥的方法。 在该方法中,形成水泥组合物,其包含水泥和与该水泥混合的一个或多个珠粒。 将含有珠粒的水泥组合物置于井眼中,并将惰性气相引入水泥组合物以控制水泥组合物的密度。 惰性气相可以通过向水泥组合物添加气体发生材料和/或多孔材料来引入。 在一个实施方案中,气体发生材料是可由氧化剂活化的产氮材料。 在另一个实施方案中,气体发生材料是氢生成材料,例如铝粉末。 本发明还提供了一种水泥组合物,其包含水泥,与水泥组合的一个或多个珠粒以及由例如气体发生材料和/或多孔材料产生的惰性气相。

    Traceable well cement compositions and methods
    9.
    发明授权
    Traceable well cement compositions and methods 失效
    可溯源井水泥组合物和方法

    公开(公告)号:US5783822A

    公开(公告)日:1998-07-21

    申请号:US857845

    申请日:1997-05-16

    摘要: The present invention provides improved traceable well cement compositions and methods. The compositions are basically comprised of hydraulic cement, sufficient water to form a pumpable slurry and a normally non-radioactive tracer compound which becomes radioactive and emits detectible rays over a relatively short time period when exposed to neutrons. The methods of the invention relate to cementing a zone in a well and subsequently detecting the subterranean location of the cement composition therein. A traceable well cement composition of the invention is formed and introduced into a subterranean zone to be cemented. Neutrons are then emitted from a source in the well so that the tracer compound emits detectible rays, the rays are detected and the location of the cement composition in the well is determined.

    摘要翻译: 本发明提供改进的可追溯井水泥组合物和方法。 组合物基本上由水硬性水泥组成,足够的水形成可泵送的浆料和通常不放射性的示踪剂化合物,其在暴露于中子时在相当短的时间内变成放射性并发射可检测的射线。 本发明的方法涉及固井中的区域,随后检测其中的水泥组合物的地下位置。 形成本发明的可溯源的井水泥组合物并将其引入到要接合的地下区域中。 中子然后从井中的源发射,使得示踪剂化合物发射可检测的射线,检测射线并确定井中的水泥组合物的位置。