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公开(公告)号：US20050160945A1
公开(公告)日：2005-07-28
申请号：US10504772
申请日：2003-02-14
CPC分类号： C04B28/02 , C04B14/106 , C04B40/0032 , C04B2111/00146 , C04B2111/56 , C04B2111/763 , C09K8/46 , Y02W30/92 , C04B20/008 , C04B28/04 , C04B28/06 , C04B14/062 , C04B18/08 , C04B20/0036
摘要： In a process to design high temperature cement sluries, the temperature stable phases (anorthite, wairakite) are selected; aluminum modifiers and silica oxides are added to the dry cement so that the elemental composition of the blend corresponds to the phases selected; the control of the particle size distribution and the relative amount of those minerals allow their addition at high concentration while leaving the slurry easily mixable and pumpable; and the kinetics of the targeted phases formation is then controlled by adjusting the crystallinity and the particles sizes of the different solids.
摘要翻译： 在设计高温水泥泥浆的过程中，选择温度稳定相（钙长石，白云石）; 将铝改性剂和二氧化硅氧化物加入到干燥水泥中，使得共混物的元素组成对应于所选择的相; 颗粒尺寸分布的控制和这些矿物质的相对量允许它们以高浓度添加，同时使浆料易于混合和可泵送; 然后通过调节不同固体的结晶度和颗粒尺寸来控制目标相形成的动力学。
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公开(公告)号：US20070167331A1
公开(公告)日：2007-07-19
申请号：US10597049
申请日：2005-01-04
CPC分类号： E21B33/138 , C09K8/5083 , C09K8/512 , C09K8/5753 , C09K8/5756 , E21B2043/0115
摘要： A method of stabilising an underground formation surrounding a borehole comprising placing a treatment fluid in the formation, the treatment fluid comprising cross-linkable polymer and a cross-linking agent, and allowing the treatment fluid to gel in-situ, characterised in that after placement of the treatment fluid in the formation, an activator fluid is pumped into the well to bring about cross linking of the polymer to form the gel.
摘要翻译： 一种稳定围绕钻孔的地下地层的方法，包括将处理流体放置在地层中，处理流体包括可交联聚合物和交联剂，并使处理流体原位凝胶化，其特征在于在放置之后 的地层中的处理流体，将活化剂流体泵送到井中以引起聚合物的交联以形成凝胶。
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公开(公告)号：US20070125271A1
公开(公告)日：2007-06-07
申请号：US10595435
申请日：2004-10-26
CPC分类号： C04B28/04 , C04B7/345 , C04B2111/00215 , C04B2111/28 , C04B14/041 , C04B14/043 , C04B14/06 , C04B20/0076 , C04B38/08 , C04B40/0263
摘要： A method of designing a cement composition comprises determination of the temperature to which the composition will be exposed in situ; determination of a stable, thermodynamic equilibrium composition of a CaO—Al2O3—SiO2—H2O (CASH) mineral system in the [xonotlite/wollastonite]-grossulaire-anorthite or grossulaire-anorthite-quartz triangles of the Si—Ca—Al phase diagram with a possible contribution of iron and/or magnesium, analogous to the cement when set, at the determined temperature; determining proportions of cement and mineral oxides required to provide a mixture having the determined composition; and defining a series of particulate materials of predetermined particle sizes and densities, comprising cement and mineral oxides in the determined proportions.
摘要翻译： 一种设计水泥组合物的方法包括测定组合物将在其上原地暴露的温度; 测定CaO-Al 2 O 3 -SiO 2 H 2 -SiO 2的稳定的热力学平衡组成， O（CASH）矿物系统在Si-Ca-Al相图的[xonotlite /硅灰石] - 石榴 - 钙长石或粗铜 - 长石 - 三角形中，具有铁和/或镁的可能贡献，类似于当凝固时的水泥 ，在确定的温度下; 确定提供具有确定组成的混合物所需的水泥和矿物氧化物的比例; 并且确定一系列具有预定粒度和密度的颗粒材料，其包含所确定比例的水泥和矿物氧化物。
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4.发明申请Method and Apparatus for Monitoring Cement Sheath Degradation Related to CO2 Exposure 审中-公开监测与CO2暴露有关的水泥护套降解的方法和装置公开(公告)号：US20120206144A1
公开(公告)日：2012-08-16
申请号：US13499286
申请日：2010-10-08
IPC分类号： G01V3/00
CPC分类号： G01N33/383 , E21B41/0064 , E21B47/0005 , G01N27/041 , Y02C10/14
摘要： The present invention provides methods, apparatuses and systems for more effectively and efficiently, directly and indirectly monitoring cement degradation related to carbon dioxide exposure by measuring one or more electrical properties related to resistivity of cement behind a casing in a well.
摘要翻译： 本发明提供了通过测量与井中的套管后面的水泥的电阻率相关的一个或多个电性能来更有效和高效地直接和间接监测与二氧化碳暴露相关的水泥降解的方法，装置和系统。
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公开(公告)号：US20090126930A1
公开(公告)日：2009-05-21
申请号：US12067823
申请日：2006-09-25
CPC分类号： E21B41/0064 , C04B28/02 , C04B28/08 , C04B2111/00146 , C04B2111/22 , C09K8/467 , Y02C10/14 , Y02W30/92 , Y02W30/94 , C04B14/06 , C04B14/106 , C04B14/24 , C04B18/082 , C04B18/141 , C04B20/0036 , C04B38/10 , C04B40/0236 , C04B14/062 , C04B20/0076 , C04B2103/20 , C04B2103/408
摘要： The invention provides a cement composition resistant to carbon dioxide including a hollow element for trapping carbonation products. The hollow element can be an additional component added to the cement composition, this component is made of hollow spherical or quasi spherical particles as cenospheres, sodium-calcium-borosilicate glass, silica-alumina microspheres, or a combination thereof. Or the hollow element is a spherical or quasi spherical void made in the set cement, for example by foaming the cement composition with a gas as air, nitrogen or a combination thereof. Use of such cement composition in carbon dioxide application is disclosed. Additionally, a method to cement a part of a borehole in presence with carbon dioxide is disclosed, a method to repair a part of a borehole in presence with carbon dioxide is disclosed using the above cement composition and a method to plug a part of a borehole in presence with carbon dioxide is disclosed.
摘要翻译： 本发明提供了耐二氧化碳的水泥组合物，包括用于捕获碳酸化产物的中空元件。 中空元件可以是添加到水泥组合物中的另外的组分，该组分由中空球形或准球形颗粒制成，如空心球，钠 - 钙 - 硼硅酸盐玻璃，二氧化硅 - 氧化铝微球或其组合。 或者中空元件是在固化水泥中制成的球形或准球形空隙，例如通过用气体，氮气或其组合将气体作为发泡水泥组合物。 公开了在二氧化碳应用中使用这种水泥组合物。 另外，公开了一种在二氧化碳存在下水泥钻井的一部分的方法，使用上述水泥组合物和一种将一部分钻孔堵塞的方法公开了在二氧化碳存在下修复钻孔的一部分的方法 在二氧化碳的存在下公开。
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6.发明授权
公开(公告)号：US5503672A
公开(公告)日：1996-04-02
申请号：US207986
申请日：1994-03-08
CPC分类号： C04B24/003 , C09K8/46 , C04B2103/22
摘要： The invention relates to the cementing of high temperature wells. The retarder consists of a methylene phosphonic acid derivative and of a boric acid or a borate at least as acid as borax in an aqueous solution, in particular, Na pentaborate, in a preferred ratio of 0.08 to 0.92 parts by weight. A long setting time and a very swift compressive strength development are obtained at the same time.
摘要翻译： 本发明涉及高温井的固井。 缓凝剂由亚甲基膦酸衍生物和至少与硼砂一样酸的硼酸或硼酸盐在水溶液中，特别是五硼酸钠组成，优选的比例为0.08至0.92重量份。 同时获得了长的凝固时间和非常迅速的抗压强度的发展。
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公开(公告)号：US20080028994A1
公开(公告)日：2008-02-07
申请号：US11462724
申请日：2006-08-07
CPC分类号： C04B28/006 , C04B2103/10 , C04B2103/20 , C04B2111/00146 , C04B2111/00215 , C09K8/467 , Y02P40/165 , Y02W30/92 , Y02W30/94 , Y10S106/01 , C04B14/047 , C04B20/002 , C04B22/062 , C04B38/10 , C04B2103/34 , C04B2103/408 , C04B2103/46 , C04B2103/50 , C04B14/10 , C04B14/365 , C04B18/023 , C04B18/082 , C04B40/0633 , C04B2103/0008 , C04B22/0013 , C04B22/16 , C04B24/06 , C04B24/18 , C04B14/22 , C04B14/301 , C04B14/305 , C04B18/141 , C04B18/146 , C04B38/103
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 comprising an aluminosilicate source, a metal silicate, an alkali activator, lightweight or heavyweight fillers and a carrier fluid wherein the suspension of said geopolymeric composition is pumped in a well and allowed to set.
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，而组合材料产生良好的抗压强度和渗透性。 本发明公开了一种制备用于油田胶结应用的地质聚合物的方法。 根据本发明的地质聚合物组合物包含包含硅铝酸盐源，金属硅酸盐，碱活化剂，轻质或重质填料和载体流体的悬浮液，其中将所述地质聚合物组合物的悬浮液泵送到井中并允许其固化。
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8.发明授权Cementing compositions and the application of such compositions to cementing oil or analogous wells 失效水泥组合物和这些组合物在固井油或类似井中的应用公开(公告)号：US06312515B1
公开(公告)日：2001-11-06
申请号：US08664018
申请日：1996-06-12
IPC分类号： C04B2424
CPC分类号： C09K8/42 , C04B20/008 , C09K8/428 , Y10S106/01 , C04B7/527 , C04B22/0026 , C04B2103/46
摘要： The invention concerns cementing compositions, particularly for squeeze cementing, comprising a liquid phase and a solid phase constituted by particulate materials which are insoluble in said liquid phase, in particular a microcement. The compositions of the invention comprise additives of a nature and composition such that variations in viscosity of the composition due to fluid loss are minimized. Preferably, the compositions comprise at least one “very fine” additive formed from particles which are smaller than the cement, with a ratio of the average grain sizes of the particles of said additive and those of the cement in the range 5 to 100, preferably about 10, the respective proportions of the solid particles corresponding to a packing volume fraction close to the maximum, and the porosity of the solid mixture being such that the mixture is in a state of hindered settling.
摘要翻译： 本发明涉及固井组合物，特别是用于挤压固井的组合物，其包括由不溶于所述液相的颗粒材料，特别是微胶囊构成的液相和固相。 本发明的组合物包括性质和组成使得由于流体损失导致的组合物粘度变化最小化的添加剂。 优选地，组合物包含由小于水泥的颗粒形成的至少一种“非常细的”添加剂，所述添加剂的颗粒和水泥的颗粒的平均晶粒尺寸的比例在5-100范围内 约10，相当于接近最大值的填充体积分数的固体颗粒的相应比例以及固体混合物的孔隙率使得混合物处于阻碍沉降的状态。
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