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1.
公开(公告)号:US06631766B2
公开(公告)日:2003-10-14
申请号:US10103449
申请日:2002-03-21
IPC分类号: E21B3313
CPC分类号: C04B28/02 , C09K8/42 , C09K8/46 , C09K8/473 , Y02W30/92 , Y10S106/01 , Y10S106/04 , C04B14/104 , C04B18/082 , C04B38/08
摘要: The present invention provides methods, lightweight well cement compositions and additives for the well cement compositions. The methods of the invention for sealing pipe in a well bore penetrating a zone or formation which readily fractures at low hydrostatic pressure is basically comprised of the steps of providing a lightweight cement composition comprised of a hydraulic cement, water and an additive comprising an aqueous suspension of microspheres containing a water swellable clay suspending agent, placing the cement composition in the annulus between the pipe and the well bore and allowing the cement composition to set.
摘要翻译: 本发明提供了用于井水泥组合物的方法,轻质井水泥组合物和添加剂。 本发明的密封管道渗透到在低流体静力压力下容易断裂的区域或地层的本发明的方法基本上包括提供由水硬性水泥,水和包含水悬浮液的添加剂组成的轻质水泥组合物的步骤 的含有水溶胀粘土悬浮剂的微球,将水泥组合物置于管和井眼之间的环空中,并允许水泥组合物固化。
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公开(公告)号:US06811603B2
公开(公告)日:2004-11-02
申请号:US10603483
申请日:2003-06-25
IPC分类号: C04B1410
CPC分类号: C09K8/467 , C04B28/02 , C09K8/42 , C09K8/46 , Y02W30/92 , C04B14/10 , C04B18/082 , C04B20/0036
摘要: The present invention provides methods, lightweight well cement compositions and additives for the well cement compositions. The methods of the invention for sealing pipe in a well bore penetrating a zone or formation which readily fractures at low hydrostatic pressure is basically comprised of the steps of providing a lightweight cement composition comprised of a hydraulic cement, water and an additive comprising an aqueous suspension of microspheres containing a water swellable clay suspending agent, placing the cement composition in the annulus between the pipe and the well bore and allowing the cement composition to set.
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公开(公告)号:US06648961B2
公开(公告)日:2003-11-18
申请号:US10301029
申请日:2002-11-20
IPC分类号: C04B1806
CPC分类号: C04B28/02 , C09K8/42 , C09K8/46 , C09K8/473 , Y02W30/92 , Y10S106/01 , Y10S106/04 , C04B14/104 , C04B18/082 , C04B38/08
摘要: The present invention provides methods, lightweight well cement compositions and additives for the well cement compositions. The methods of the invention for sealing pipe in a well bore penetrating a zone or formation which readily fractures at low hydrostatic pressure is basically comprised of the steps of providing a lightweight cement composition comprised of a hydraulic cement, water and an additive comprising a suspension of microspheres in water gelled with sodium bentonite, placing the cement composition in the annulus between the pipe and the well bore and allowing the cement composition to set.
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4.
公开(公告)号:US06601647B2
公开(公告)日:2003-08-05
申请号:US10005266
申请日:2001-12-03
IPC分类号: E21B3313
CPC分类号: C04B28/02 , C09K8/42 , C09K8/46 , C09K8/473 , Y02W30/92 , Y10S106/01 , Y10S106/04 , C04B14/104 , C04B18/082 , C04B38/08
摘要: The present invention provides methods, lightweight well cement compositions and additives for the well cement compositions. The methods of the invention for sealing pipe in a well bore penetrating a zone or formation which readily fractures at low hydrostatic pressure is basically comprised of the steps of providing a lightweight cement composition comprised of a hydraulic cement, water and an additive comprising a suspension of microspheres in water gelled with sodium bentonite, placing the cement composition in the annulus between the pipe and the well bore and allowing the cement composition to set.
摘要翻译: 本发明提供了用于井水泥组合物的方法,轻质井水泥组合物和添加剂。 本发明的密封管道渗透在低流体静力压力下容易断裂的区域或地层中的本发明的方法基本上包括提供由水硬性水泥,水和添加剂组成的轻质水泥组合物的步骤,该水泥组合物包含悬浮液 用钠膨润土胶凝的水中的微球,将水泥组合物置于管和井眼之间的环空中,并允许水泥组合物固化。
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公开(公告)号:US06660078B2
公开(公告)日:2003-12-09
申请号:US10301060
申请日:2002-11-20
IPC分类号: C04B1808
CPC分类号: C04B28/02 , C09K8/42 , C09K8/46 , C09K8/473 , Y02W30/92 , Y10S106/01 , Y10S106/04 , C04B14/104 , C04B18/082 , C04B38/08
摘要: The present invention provides methods, lightweight well cement compositions and additives for the well cement compositions. The methods of the invention for sealing pipe in a well bore penetrating a zone or formation which readily fractures at low hydrostatic pressure is basically comprised of the steps of providing a lightweight cement composition comprised of a hydraulic cement, water and an additive comprising a suspension of microspheres in water gelled with sodium bentonite, placing the cement composition in the annulus between the pipe and the well bore and allowing the cement composition to set.
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公开(公告)号:US07063153B2
公开(公告)日:2006-06-20
申请号:US10773632
申请日:2004-02-06
申请人: Larry S. Eoff , Krista L. Keener
发明人: Larry S. Eoff , Krista L. Keener
IPC分类号: E21B33/13
CPC分类号: C09K8/487 , C04B24/163 , C04B24/2629 , C04B24/2652 , C04B24/2688 , C04B28/02 , C04B28/04 , C04B2111/00146 , C09K8/46 , C04B22/0026 , C04B2103/46
摘要: Methods of cementing subterranean zones penetrated by well bores and well cement compositions. A well cement composition of the invention basically comprises a hydraulic cement, water in an amount sufficient to form a pumpable slurry and a fluid loss control polymer additive comprising 77.9 weight % of the calcium salt of 2-acrylamido-2-methyl propane sulfonic acid, 8 weight % of the calcium salt of maleic acid, 11 weight % of N-vinyl caprolactam, 3 weight % of 4-hydroxybutyl vinyl ether and 0.1 weight % of methylene bisacrylamide.
摘要翻译: 井眼和水泥组合物渗透的地下区域固井方法。 本发明的良好的水泥组合物基本上包括水硬性水泥,足以形成可泵送浆料的水和含有77.9重量%的2-丙烯酰胺基-2-甲基丙磺酸钙盐的流体损失控制聚合物添加剂, 8重量%的马来酸钙盐,11重量%的N-乙烯基己内酰胺,3重量%的4-羟基丁基乙烯基醚和0.1重量%的亚甲基双丙烯酰胺。
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公开(公告)号:US06591910B1
公开(公告)日:2003-07-15
申请号:US10353731
申请日:2003-01-29
IPC分类号: E21B33138
CPC分类号: C09K8/46 , C04B24/163 , C04B24/2647 , C04B24/2688 , C04B28/02 , C04B2103/408 , C04B2103/46 , C04B24/383 , C04B24/2652
摘要: Methods and compositions for cementing subterranean zones penetrated by well bores are provided. The methods are basically comprised of the steps of providing a cement composition which comprises a hydraulic cement, sufficient water to form a slurry and a dispersing agent comprising a tetrapolymer formed of methacrylic acid, methacrylate, methallyl sulfonic acid and ethoxylated acrylic acid. The cement composition is placed in the subterranean zone to be cemented and allowed to set into an impermeable solid mass therein.
摘要翻译: 提供了用井眼渗透的固井地下区域的方法和组合物。 所述方法基本上包括提供包含水硬性水泥,足够的水以形成浆料的水泥组合物和包含由甲基丙烯酸,甲基丙烯酸酯,甲代烯丙基磺酸和乙氧基化丙烯酸形成的四元共聚物的分散剂的步骤。 将水泥组合物放置在地下区域中以胶结并使其在其中设置为不可渗透的固体物质。
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公开(公告)号:US06855201B2
公开(公告)日:2005-02-15
申请号:US10714134
申请日:2003-11-14
申请人: Larry S. Eoff , Krista L. Keener
发明人: Larry S. Eoff , Krista L. Keener
CPC分类号: C04B24/2652 , C04B24/163 , C04B24/2629 , C04B24/2688 , C09K8/46 , C04B2103/46
摘要: A cement composition is basically comprised of a hydraulic cement, water in an amount sufficient to form a pumpable slurry and a fluid loss control polymer additive comprised of 69 weight % of the calcium salt of 2-acrylamido-2-methyl propane sulfonic acid, 14 weight % of the calcium salt of maleic acid, 14 weight % of N-vinyl caprolactam and 3 weight % of 4-hydroxybutyl vinyl ether.
摘要翻译: 水泥组合物基本上由水硬性水泥,足以形成可泵送浆料的水和由69重量%的2-丙烯酰胺基-2-甲基丙磺酸钙盐,14 马来酸钙盐的重量百分比,14重量%的N-乙烯基己内酰胺和3重量%的4-羟基丁基乙烯基醚。
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公开(公告)号:US06843846B2
公开(公告)日:2005-01-18
申请号:US10702960
申请日:2003-11-06
CPC分类号: C09K8/46 , C04B24/163 , C04B24/2647 , C04B24/2688 , C04B28/02 , C04B2103/408 , C04B2103/46 , C04B24/383 , C04B24/2652
摘要: Methods and compositions for cementing subterranean zones penetrated by well bores are provided. The methods are basically comprised of the steps of providing a cement composition which comprises a hydraulic cement, sufficient water to form a slurry and a dispersing agent comprising a tetrapolymer formed of methacrylic acid, methacrylate, methallyl sulfonic acid and ethoxylated acrylic acid. The cement composition is placed in the subterranean zone to be cemented and allowed to set into an impermeable solid mass therein.
摘要翻译: 提供了用井眼渗透的固井地下区域的方法和组合物。 所述方法基本上包括提供包含水硬性水泥,足够的水以形成浆料的水泥组合物和包含由甲基丙烯酸,甲基丙烯酸酯,甲代烯丙基磺酸和乙氧基化丙烯酸形成的四元共聚物的分散剂的步骤。 将水泥组合物放置在地下区域中以胶结并使其在其中设置为不可渗透的固体物质。
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公开(公告)号:US06715552B2
公开(公告)日:2004-04-06
申请号:US10176344
申请日:2002-06-20
申请人: Larry S. Eoff , Krista L. Keener
发明人: Larry S. Eoff , Krista L. Keener
IPC分类号: E21B3313
CPC分类号: C04B24/2652 , C04B24/163 , C04B24/2629 , C04B24/2688 , C09K8/46 , C04B2103/46
摘要: Methods of cementing subterranean zones penetrated by well bores and well cement compositions are provided. A well cement composition of the invention is basically comprised of a hydraulic cement, water in an amount sufficient to form a pumpable slurry and a fluid loss control polymer additive comprised of 69 weight % of the calcium salt of 2-acrylamido-2-methyl propane sulfonic acid, 14 weight % of the calcium salt of maleic acid, 14 weight % of N-vinyl caprolactam and 3 weight % of 4-hydroxybutyl vinyl ether.
摘要翻译: 提供了井眼和井眼水泥组合物渗透的地下区域固井方法。 本发明的良好的水泥组合物基本上由水硬性水泥,足以形成可泵送浆料的水和由69重量%的2-丙烯酰胺基-2-甲基丙烷的钙盐组成的流体损失控制聚合物添加剂 磺酸,14重量%的马来酸钙盐,14重量%的N-乙烯基己内酰胺和3重量%的4-羟基丁基乙烯基醚。
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