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1. 发明申请

US20090275487A1 ADDITIVE FOR INCREASING THE DENSITY OF AN OIL-BASED FLUID AND FLUID COMPRISING SUCH ADDITIVE 有权
标题翻译：用于增加基于油脂的流体和包含这种添加剂的流体的密度的添加剂
公开(公告)号：US20090275487A1
公开(公告)日：2009-11-05
申请号：US12421351
申请日：2009-04-09
申请人： Andrew J. Bradbury , Jarrod Massam , Christopher A. Sawdon
发明人： Andrew J. Bradbury , Jarrod Massam , Christopher A. Sawdon
IPC分类号： C09K8/24
CPC分类号： C09K8/32 , C09K3/00 , C09K8/032 , C09K8/035 , C09K8/16 , C09K2208/18 , Y10S507/901 , Y10S507/904 , Y10S507/906
摘要： A method of formulating a wellbore fluid that includes grinding a solid particulate material and a polymeric dispersing agent to provide a resulting polymer coated solid material, and suspending the resulting polymer coated solid material in the wellbore fluid. At least a portion of the resulting polymer coated solid material has a particle diameter less than 2.0 microns, wherein the polymeric dispersing agent has a molecular weight greater than 10,000. Exemplary starting materials for the solid material include weighting agents including barite, calcium carbonate, dolomite, ilmenite, hematite or other iron ores, olivine, siderite and strontium sulfate as well as mixture and combinations of these and other similar weighting materials. The dispersant in one illustrative embodiment is a polymeric acrylate ester made from the monomers of stearyl methacrylate, butyacrylate, and acrylic acid.
摘要翻译：一种配制井筒流体的方法，其包括研磨固体颗粒材料和聚合物分散剂以提供所得的聚合物涂覆的固体材料，并将所得聚合物涂覆的固体材料悬浮在井眼流体中。所得聚合物涂覆的固体材料的至少一部分具有小于2.0微米的粒径，其中聚合物分散剂的分子量大于10,000。用于固体材料的示例性起始材料包括加重剂，包括重晶石，碳酸钙，白云石，钛铁矿，赤铁矿或其他铁矿石，橄榄石，菱铁矿和硫酸锶以及这些和其它类似的加权材料的混合物和组合。在一个说明性实施方案中的分散剂是由甲基丙烯酸硬脂酯，丁基丙烯酸酯和丙烯酸的单体制成的聚合丙烯酸酯。

2. 发明授权

US07267291B2 Additive for increasing the density of an oil-based fluid and fluid comprising such additive 有权
标题翻译：用于增加包含这种添加剂的油基流体和流体的密度的添加剂
公开(公告)号：US07267291B2
公开(公告)日：2007-09-11
申请号：US10610499
申请日：2003-06-30
申请人： Andrew J. Bradbury , Jarrod Massam , Christopher A. Sawdon
发明人： Andrew J. Bradbury , Jarrod Massam , Christopher A. Sawdon
IPC分类号： B02C23/18 , B02C19/00 , C09K8/03
CPC分类号： C09K8/32 , C09K3/00 , C09K8/032 , C09K8/035 , C09K8/16 , C09K2208/18 , Y10S507/901 , Y10S507/904 , Y10S507/906
摘要： A wellbore fluid having an oleaginous phase and an additive for increasing the density of the wellbore fluid. The additive comprises solid colloidal particles coated with a dispersant during the comminution process of forming the particles. Exemplary starting materials for the colloidal particles include commonly known weighting agents as well as mixture and combinations thereof. The dispersant in one embodiment, is selected from carboxylic acids of molecular weight of at least 150 Daltons. Alternatively, the dispersant coating may be made of compounds including oleic acid, polybasic fatty acids, alkylbenzene sulfonic acids, alkane sulfonic acids, linear alpha-olefin sulfonic acid or the alkaline earth metal salts of any of the above acids, and phospholipids as well as mixtures and combinations of these compounds. In another embodiment the dispersant is a polyacrylate ester having an average molecular weight from about 10,000 Daltons to about 200,000 Daltons.
摘要翻译：具有油相的井筒流体和用于增加井筒流体密度的添加剂。添加剂包括在形成颗粒的粉碎过程中用分散剂涂覆的固体胶体颗粒。用于胶体颗粒的示例性起始材料包括通常已知的加重剂以及其混合物和组合。在一个实施方案中，分散剂选自分子量至少为150道尔顿的羧酸。或者，分散剂涂层可以由包括油酸，多元脂肪酸，烷基苯磺酸，链烷磺酸，直链α-烯烃磺酸或任何上述酸的碱土金属盐和磷脂以及磷脂这些化合物的混合物和组合。在另一个实施方案中，分散剂是平均分子量为约10,000道尔顿至约200,000道尔顿的聚丙烯酸酯。

3. 发明授权

US07745380B2 Additive for increasing the density of a fluid for casing annulus pressure control 有权
标题翻译：用于增加套管环空压力控制的流体密度的添加剂
公开(公告)号：US07745380B2
公开(公告)日：2010-06-29
申请号：US12354205
申请日：2009-01-15
申请人： Andrew J. Bradbury , Christopher A. Sawdon , Sonny Clary , William M. Reid , Tom Heinz
发明人： Andrew J. Bradbury , Christopher A. Sawdon , Sonny Clary , William M. Reid , Tom Heinz
IPC分类号： C08K8/00
CPC分类号： C09K3/00 , C09K8/032 , C09K8/16 , C09K8/32 , Y10S507/906
摘要： A method of treating a wellbore that includes circulating a wellbore fluid in the wellbore, wherein the wellbore fluid comprises an oleaginous base fluid and a wellbore additive colloidal solid material, and wherein the wellbore additive colloidal solid material is formed by grinding a solid particulate material and a polymeric dispersing agent for a sufficient time so that the polymeric dispersing agent is absorbed to the surface of the resulting colloidal solid particles and less than 10% of the resulting colloidal solid particles have a diameter greater than 10 microns, but not more than five percent of the particles are less than 0.2 micron in diameter, wherein the grinding is carried out in the presence of an oleaginous base fluid and wherein the grinding is carried out so that the wellbore additive colloidal solid material has a weight average particle diameter d50 less than 2.0 microns.
摘要翻译：一种处理井筒的方法，其包括在井眼中循环井筒流体，其中井筒流体包括油质基础流体和井筒添加剂胶体固体材料，并且其中所述井筒添加剂胶态固体材料通过研磨固体颗粒材料和聚合物分散剂足够的时间使得聚合物分散剂被吸收到所得胶体固体颗粒的表面，并且小于10％的所得胶态固体颗粒的直径大于10微米，但不超过5％的颗粒直径小于0.2微米，其中研磨在含油基础液体的存在下进行，并且其中进行研磨使得井筒添加剂胶体固体材料具有小于2.0的重均粒径d 50 微米。

4. 发明申请

US20090124521A1 ADDITIVE FOR INCREASING THE DENSITY OF A FLUID FOR CASING ANNULUS PRESSURE CONTROL 有权
标题翻译：用于增加流体对密封压力控制的密度的添加剂
公开(公告)号：US20090124521A1
公开(公告)日：2009-05-14
申请号：US12354205
申请日：2009-01-15
申请人： Andrew J. Bradbury , Christopher A. Sawdon , Sonny Clary , William M. Reid , Tom Heinz
发明人： Andrew J. Bradbury , Christopher A. Sawdon , Sonny Clary , William M. Reid , Tom Heinz
IPC分类号： C09K8/00
CPC分类号： C09K3/00 , C09K8/032 , C09K8/16 , C09K8/32 , Y10S507/906
摘要： A method of treating a wellbore that includes circulating a wellbore fluid in the wellbore, wherein the wellbore fluid comprises an oleaginous base fluid and a wellbore additive colloidal solid material, and wherein the wellbore additive colloidal solid material is formed by grinding a solid particulate material and a polymeric dispersing agent for a sufficient time so that the polymeric dispersing agent is absorbed to the surface of the resulting colloidal solid particles and less than 10% of the resulting colloidal solid particles have a diameter greater than 10 microns, but not more than five percent of the particles are less than 0.2 micron in diameter, wherein the grinding is carried out in the presence of an oleaginous base fluid and wherein the grinding is carried out so that the wellbore additive colloidal solid material has a weight average particle diameter d50 less than 2.0 microns.
摘要翻译：一种处理井筒的方法，其包括在井眼中循环井筒流体，其中井筒流体包括油质基础流体和井筒添加剂胶体固体材料，并且其中所述井筒添加剂胶态固体材料通过研磨固体颗粒材料和聚合物分散剂足够的时间使得聚合物分散剂被吸收到所得胶体固体颗粒的表面，并且小于10％的所得胶态固体颗粒的直径大于10微米，但不超过5％的颗粒直径小于0.2微米，其中研磨在含油基础液体的存在下进行，并且其中进行研磨使得井筒添加剂胶体固体材料具有小于2.0的重均粒径d 50 微米。

5. 发明授权

US07427582B2 Internal breaker 有权
标题翻译：内部断路器
公开(公告)号：US07427582B2
公开(公告)日：2008-09-23
申请号：US10990707
申请日：2004-11-17
申请人： David A Ballard , Christopher A Sawdon , Trevor G Jappy
发明人： David A Ballard , Christopher A Sawdon , Trevor G Jappy
IPC分类号： C09K8/72
CPC分类号： C09K8/536 , Y10S507/902 , Y10S507/906 , Y10S507/921
摘要： A wellbore fluid including a peroxide degradable polymer and an encapsulated peroxide source. The peroxide degradable polymer may be a polysaccharide. The peroxide source may include an inorganic peroxide, including zinc and alkaline earth metal peroxides, such as magnesium peroxide. The encapsulating material may be a polymer, including enteric polymers. The release of peroxide, from peroxide sources generally, can be controlled by means of pH such that peroxide source can be activated, and peroxide released, by a change in pH. In a wellbore, this pH change can be effected by using produced fluids to lower the pH of a more basic wellbore fluid.
摘要翻译：包括过氧化物可降解聚合物和包封的过氧化物源的井眼流体。过氧化物可降解聚合物可以是多糖。过氧化物源可以包括无机过氧化物，包括锌和碱土金属过氧化物，例如过氧化镁。封装材料可以是聚合物，包括肠溶聚合物。通常可以通过过氧化物源释放过氧化物，通过pH可以通过pH的变化使过氧化物源活化，并释放过氧化物。在井眼中，这种pH值变化可以通过使用产生的流体来降低更基本的井眼流体的pH来实现。

6. 发明授权

US06586372B1 Additive for increasing the density of a fluid and fluid comprising such additive 有权
标题翻译：用于增加包含这种添加剂的流体和流体的密度的添加剂
公开(公告)号：US06586372B1
公开(公告)日：2003-07-01
申请号：US09230302
申请日：1999-09-10
申请人： Andrew Bradbury , Christopher A. Sawdon
发明人： Andrew Bradbury , Christopher A. Sawdon
IPC分类号： C09K706
CPC分类号： C09K3/00 , C09K8/032 , C09K8/16 , C09K8/32 , Y10S507/906
摘要： An additive which increases the density of wellbore fluids used during the construction or repair of oil, gas, injection, water or geothermal wells comprises solid colloidal particles of weight average particle diameter (D50) of less than 2 microns, the particles being deflocculated by the action of a dispersant, preferably incorporated during the process of grinding or communication of the particles to the specified particle size. The additives may be used in any wellbore fluid such as drilling, cementing, completion, packing, work-over (repairing), stimulation, well killing and spacer fluids as well as in a dense media separating fluid or in a ship's ballast fluid.
摘要翻译：增加在油，气，注入，水或地热井的建造或修复期间使用的井筒流体密度的添加剂包括重均粒径（D50）小于2微米的固体胶体颗粒，颗粒被分散剂的作用，优选在将颗粒研磨或连通至特定颗粒尺寸的过程中引入。添加剂可以用于任何井眼流体，例如钻井，固井，完井，填料，修补（修复），刺激，杀伤和间隔液，以及在分离流体或船舶压载流体的致密介质中。

7. 发明授权

US5627143A Wellbore fluid 失效
标题翻译：井筒液
公开(公告)号：US5627143A
公开(公告)日：1997-05-06
申请号：US379608
申请日：1995-01-31
申请人： Christopher A. Sawdon
发明人： Christopher A. Sawdon
IPC分类号： C09K8/34 , C09K7/02 , C09K7/06
CPC分类号： C09K8/34
摘要： There is disclosed a biodegradable wellbore fluid having a continuous oil phase comprising an n-alk-1-ene having from 12 to 20 carbon atoms or a linear polyunsaturated olefin having one of the double bonds in the 1-position and having from 12 to 22 carbon atoms, or a mixture thereof.
摘要翻译： PCT No.PCT / GB94 / 01878 Sec。 371日期1995年1月31日 102（e）日期1995年1月31日PCT 1994年8月30日PCT公布。出版物WO95 / 06695 日期1995年3月9日公开了一种具有连续油相的可生物降解的井眼流体，其包含具有12至20个碳原子的正烷-1-烯或具有1位双键中的一个的直链多不饱和烯烃和具有12至22个碳原子，或其混合物。

8. 发明授权

US07651040B2 Additive for increasing the density of an oil-based fluid and fluid comprising such additive 有权
标题翻译：用于增加包含这种添加剂的油基流体和流体的密度的添加剂
公开(公告)号：US07651040B2
公开(公告)日：2010-01-26
申请号：US12421351
申请日：2009-04-09
申请人： Andrew J. Bradbury , Jarrod Massam , Christopher A. Sawdon
发明人： Andrew J. Bradbury , Jarrod Massam , Christopher A. Sawdon
IPC分类号： B02C23/18 , B02C19/00 , C09K8/03
CPC分类号： C09K8/32 , C09K3/00 , C09K8/032 , C09K8/035 , C09K8/16 , C09K2208/18 , Y10S507/901 , Y10S507/904 , Y10S507/906
摘要： A method of formulating a wellbore fluid that includes grinding a solid particulate material and a polymeric dispersing agent to provide a resulting polymer coated solid material, and suspending the resulting polymer coated solid material in the wellbore fluid. At least a portion of the resulting polymer coated solid material has a particle diameter less than 2.0 microns, wherein the polymeric dispersing agent has a molecular weight greater than 10,000. Exemplary starting materials for the solid material include weighting agents including barite, calcium carbonate, dolomite, ilmenite, hematite or other iron ores, olivine, siderite and strontium sulfate as well as mixture and combinations of these and other similar weighting materials. The dispersant in one illustrative embodiment is a polymeric acrylate ester made from the monomers of stearyl methacrylate, butylacrylate, and acrylic acid.
摘要翻译：一种配制井筒流体的方法，其包括研磨固体颗粒材料和聚合物分散剂以提供所得的聚合物涂覆的固体材料，并将所得聚合物涂覆的固体材料悬浮在井眼流体中。所得聚合物涂覆的固体材料的至少一部分具有小于2.0微米的粒径，其中聚合物分散剂的分子量大于10,000。用于固体材料的示例性起始材料包括加重剂，包括重晶石，碳酸钙，白云石，钛铁矿，赤铁矿或其他铁矿石，橄榄石，菱铁矿和硫酸锶以及这些和其它类似的加权材料的混合物和组合。一个说明性实施方案中的分散剂是由甲基丙烯酸硬脂酯，丙烯酸丁酯和丙烯酸的单体制成的聚合丙烯酸酯。

9. 发明授权

US07589049B2 Additive for increasing the density of a fluid for casing annulus pressure 有权
标题翻译：用于增加套管环空压力的流体密度的添加剂
公开(公告)号：US07589049B2
公开(公告)日：2009-09-15
申请号：US11162850
申请日：2005-09-26
申请人： Andrew J. Bradbury , Christopher A. Sawdon , Sonny Clary , William M. Reid , Tom Heinz
发明人： Andrew J. Bradbury , Christopher A. Sawdon , Sonny Clary , William M. Reid , Tom Heinz
IPC分类号： C09K8/588 , B02C25/00 , B01F3/12
CPC分类号： C04B20/1033 , B02C23/06 , C09K8/03 , C09K8/032 , C09K8/035 , C09K8/32 , C09K8/34 , C09K8/40 , C09K8/48 , C09K8/501 , C09K8/502 , C09K2208/18 , E21B21/062 , C04B14/28 , C04B14/30 , C04B14/36 , C04B20/008 , C04B14/368
摘要： A method of controlling the pressure of a casing annulus in a subterranean well that includes injecting into the casing annulus a composition including a base fluid and a polymer coated colloidal solid material. The polymer coated colloidal solid material includes: a solid particle having an weight average particle diameter (d50) of less than two microns, and a polymeric dispersing agent coated onto the surface of the solid particle during the cominution (i.e. grinding) process utilized to make the colloidal particles. The polymeric dispersing agent may be a water soluble polymer having a molecular weight of at least 2000 Daltons. The solid particulate material may be selected from materials having of specific gravity of at least 2.68 and preferably the solid particulate material may be selected from barium sulfate (barite), calcium carbonate, dolomite, ilmenite, hematite, olivine, siderite, strontium sulfate, combinations and mixtures of these and other similar solids that should be apparent to one of skill in the art.
摘要翻译：一种控制地下井中的壳体环的压力的方法，其包括向壳体环空注入包含基础流体和聚合物涂覆的胶态固体材料的组合物。聚合物涂覆的胶态固体材料包括：重均粒径（d50）小于2微米的固体颗粒和在用于制备的粉末（即研磨））方法中涂覆在固体颗粒表面上的聚合物分散剂胶体颗粒。聚合物分散剂可以是分子量至少为2000道尔顿的水溶性聚合物。固体颗粒材料可以选自具有至少2.68的比重的材料，并且优选固体颗粒材料可以选自硫酸钡（重晶石），碳酸钙，白云石，钛铁矿，赤铁矿，橄榄石，菱铁矿，硫酸锶，组合以及这些和其他类似固体的混合物，其对于本领域技术人员应该是显而易见的。

10. 发明授权

US07538074B2 Additive for increasing the density of an oil-based fluid and fluid comprising such additive 有权
标题翻译：用于增加包含这种添加剂的油基流体和流体的密度的添加剂
公开(公告)号：US07538074B2
公开(公告)日：2009-05-26
申请号：US11737303
申请日：2007-04-19
申请人： Andrew J. Bradbury , Jarrod Massam , Christopher A. Sawdon
发明人： Andrew J. Bradbury , Jarrod Massam , Christopher A. Sawdon
IPC分类号： C09K8/03 , C09K8/82
CPC分类号： C09K8/32 , C09K3/00 , C09K8/032 , C09K8/035 , C09K8/16 , C09K2208/18 , Y10S507/901 , Y10S507/904 , Y10S507/906
摘要： A wellbore fluid having an oleaginous phase and an additive for increasing the density of the wellbore fluid. The additive comprises solid colloidal particles coated with a dispersant coated onto the colloidal particle during the comminution process of forming the particles. Exemplary starting materials for the colloidal particles include commonly known weighting agents including barite, calcium carbonate, dolomite, ilmenite, hematite or other iron ores, olivine, siderite, and strontium sulfate as well as mixture and combinations of these and other similar weighting materials. The dispersant in one illustrative embodiment, is selected from carboxylic acids of molecular weight of at least 150 Daltons. Alternatively, the dispersant coating may be made of compounds including oleic acid, polybasic fatty acids, alkylbenzene sulfonic acids, alkane sulfonic acids, linear alpha-olefin sulfonic acid or the alkaline earth metal salts of any of the above acids, and phospholipids as well as mixtures and combinations of these compounds. In another illustrative embodiment the dispersant is a polyacrylate ester. The illustrative polymeric dispersant should have an average molecular weight from about 10,000 Daltons to about 200,000 Daltons.
摘要翻译：具有油相的井筒流体和用于增加井筒流体密度的添加剂。添加剂包括在形成颗粒的粉碎过程中涂覆有涂覆在胶体颗粒上的分散体的固体胶体颗粒。用于胶体颗粒的示例性起始材料包括通常已知的加重剂，包括重晶石，碳酸钙，白云石，钛铁矿，赤铁矿或其他铁矿石，橄榄石，菱铁矿和硫酸锶以及这些和其它类似的加权材料的混合物和组合。一个说明性实施方案中的分散剂选自分子量至少为150道尔顿的羧酸。或者，分散剂涂层可以由包括油酸，多元脂肪酸，烷基苯磺酸，链烷磺酸，直链α-烯烃磺酸或任何上述酸的碱土金属盐和磷脂以及磷脂这些化合物的混合物和组合。在另一说明性实施方案中，分散剂是聚丙烯酸酯。说明性聚合物分散剂应具有约10,000道尔顿至约200,000道尔顿的平均分子量。

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