Pumpable geopolymer formulation for oilfield application
    89.
    发明公开
    Pumpable geopolymer formulation for oilfield application 审中-公开
    Abpumpbare Geopolymer-Formulierung zur Anwendung auf einemÖlfeld

    公开(公告)号:EP2093200A1

    公开(公告)日:2009-08-26

    申请号:EP08290157.0

    申请日:2008-02-19

    IPC分类号: C04B22/06 C04B28/00 C09K8/467

    摘要: The invention provides geopolymeric compositions, which have controllable thickening and setting times for a wide range of temperatures and a large range of geopolymer slurry densities. The geopolymer slurry compositions have good mixability and pumpability, whilst the set materials develop good compressive strength and permeability. The invention discloses a method for preparing geopolymer for oilfield cementing applications. The geopolymeric compositions according to the invention comprises a suspension made of an aluminosilicate source, a carrier fluid, an activator taken from the list constituted by: a metal silicate, a metal aluminate, an alkali activator, or a combination thereof, and an aluminum containing compound taken in the list constituted of bauxite, aluminum oxide and aluminum salt and the suspension is a pumpable composition in oilfield industry and the suspension is able to set under well downhole conditions.

    摘要翻译: 本发明提供了地质聚合物组合物,其在宽范围的温度和大范围的地质聚合物浆料密度下具有可控的增稠和凝固时间。 地质聚合物浆料组合物具有良好的混合性和可泵送性,而组合材料形成良好的抗压强度和渗透性。 本发明公开了一种用于油田固井应用的地质聚合物的制备方法。 根据本发明的地质聚合物组合物包含由铝硅酸盐源,载体流体,从以下列出的活化剂制成的悬浮液:由金属硅酸盐,金属铝酸盐,碱活化剂或其组合构成的铝,以及含 由铝土矿,铝氧化物和铝盐构成的列表中的化合物,悬浮液是油田工业中可泵送的组合物,悬浮液能够在井下条件下进行设置。

    SET ACCELERATOR AND TECHNIQUE FOR SPRAYING WITH THE SAME
    90.
    发明公开
    SET ACCELERATOR AND TECHNIQUE FOR SPRAYING WITH THE SAME 有权
    设置加速器和喷涂技术

    公开(公告)号:EP2080741A1

    公开(公告)日:2009-07-22

    申请号:EP07831393.9

    申请日:2007-11-07

    摘要: To provide a quick-setting admixture for spraying and a spraying method, which are effective to prevent solidification of a quick-setting admixture slurried in a quick-setting admixture-adding tool.
    A slurry quick-setting admixture comprising an alkaline earth metal carbonate, a water-soluble acidic substance, calcium aluminate, an alkali metal sulfate, and water; and a quick-setting cement concrete comprising such a slurry quick-setting admixture and cement concrete. The slurry quick-setting admixture may further contain calcium sulfate, calcium hydroxide and/or aluminum hydroxide, a retarder, etc. The spraying method comprises mixing water and a powder quick-setting admixture comprising an alkaline earth metal carbonate, a water-soluble acidic substance, calcium aluminate and an alkali metal sulfate, to form a slurry quick-setting admixture, mixing this slurry quick-setting admixture with cement concrete to form a quick-setting cement concrete, and spraying this quick-setting cement concrete.
    Further, a quick-setting admixture for spraying which comprises a liquid quick-setting admixture, and a powder admixture comprising a blowing agent such as an alkaline earth metal carbonate, and calcium aluminate, wherein the powder admixture further contains calcium sulfate or an alkali metal-containing substance, and wherein the liquid quick-setting admixture further contains an alkali metal element or a compound having a fluorine element. The quick-setting admixture for spraying wherein the liquid quick-setting admixture and the powder admixture are joined and mixed in a slurry form.

    摘要翻译: 本发明提供一种能够有效地防止速凝型添加剂在速凝型添加剂中成浆的速凝剂的固化的速凝型喷雾用混合剂和喷雾方法。 1,一种浆状速凝剂,其特征在于,含有碱土金属碳酸盐,水溶性酸性物质,铝酸钙,碱金属硫酸盐和水; 以及包含这种浆料速凝外加剂和水泥混凝土的速凝水泥混凝土。 浆料速凝剂还可以含有硫酸钙,氢氧化钙和/或氢氧化铝,阻滞剂等。喷雾方法包括将水和含有碱土金属碳酸盐,水溶性酸性的粉末速凝剂 物质,铝酸钙和碱金属硫酸盐混合,形成浆料速凝外加剂,将该浆料速凝外加剂与水泥混凝土混合形成速凝水泥混凝土,并喷洒该速凝水泥混凝土。 此外,还提供含有液体速凝剂的喷雾用速凝剂和含有碱土类金属碳酸盐等发泡剂和铝酸钙的粉体混合剂,其中,该粉体混合剂还含有硫酸钙或碱金属 并且其中液体速凝剂还含有碱金属元素或具有氟元素的化合物。 本发明的喷射用速凝剂,其中液体速凝剂和粉末混合物以浆料形式接
    合和混合。