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1. 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。

2. 发明申请

US20050101493A1 Additive for increasing the density of a fluid for casing annulus pressure control 有权
公开(公告)号：US20050101493A1
公开(公告)日：2005-05-12
申请号：US11015125
申请日：2004-12-17
申请人： Andrew Bradbury , Christopher Sawdon , Sonny Clary , William Reid , Tom Heinz
发明人： Andrew Bradbury , Christopher Sawdon , Sonny Clary , William Reid , Tom Heinz
IPC分类号： B41F31/00 , B41F31/02 , B41F31/07 , B41F31/26 , E21B43/00 , G03C1/00
CPC分类号： B41F31/26 , B41F31/027 , Y10S507/906
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.

3. 发明授权

US07651983B2 Reduced abrasiveness with micronized weighting material 失效
标题翻译：用微粉化加重材料降低磨损
公开(公告)号：US07651983B2
公开(公告)日：2010-01-26
申请号：US12191089
申请日：2008-08-13
申请人： Jarrod Massam , Andrew Bradbury
发明人： Jarrod Massam , Andrew Bradbury
IPC分类号： C09K8/74
CPC分类号： C09K8/03 , C09K8/032
摘要： A method of prolonging the average lifespan of downhole tools that includes circulating the wellbore fluid comprising a base fluid and at least one of a micronized weighting agent and a dispersant coated weighting agent through the wellbore; wherein the wellbore fluid is characterized as having at least one of an equivalent weight, an equivalent or lower settling rate, and an equivalent or lower sag than a baseline wellbore fluid comprising a base fluid and an API-grade barite weighting agent; and wherein the wellbore fluid reduces abrasive wear of the downhole tool as compared to drilling with the baseline wellbore fluid is disclosed.
摘要翻译：一种延长井下工具的平均寿命的方法，其包括使包含基础流体的井眼流体和微粉化加重剂和分散剂涂覆的增重剂中的至少一种通过井筒循环; 其特征在于，所述井眼流体的特征在于具有等效重量，等效或较低沉降速率以及等于或低于基本井眼流体的等效或较低的下垂中的至少一种，所述基准井眼流体包括基础流体和API级重晶体加重剂; 并且其中井筒流体与基准井眼流体的钻井相比，减少了井下工具的磨损。

4. 发明申请

US20090005271A1 REDUCED ABRASIVENESS WITH MICRONIZED WEIGHTING MATERIAL 失效
标题翻译：使用微型称重材料降低耐磨性
公开(公告)号：US20090005271A1
公开(公告)日：2009-01-01
申请号：US12191089
申请日：2008-08-13
申请人： Jarrod Massam , Andrew Bradbury
发明人： Jarrod Massam , Andrew Bradbury
IPC分类号： C09K8/03
CPC分类号： C09K8/03 , C09K8/032
摘要： A method of prolonging the average lifespan of downhole tools that includes circulating the wellbore fluid comprising a base fluid and at least one of a micronized weighting agent and a dispersant coated weighting agent through the wellbore; wherein the wellbore fluid is characterized as having at least one of an equivalent weight, an equivalent or lower settling rate, and an equivalent or lower sag than a baseline wellbore fluid comprising a base fluid and an API-grade barite weighting agent; and wherein the wellbore fluid reduces abrasive wear of the downhole tool as compared to drilling with the baseline wellbore fluid is disclosed.
摘要翻译：一种延长井下工具的平均寿命的方法，其包括使包含基础流体的井眼流体和微粉化加重剂和分散剂涂覆的增重剂中的至少一种通过井筒循环; 其特征在于，所述井眼流体的特征在于具有等效重量，等效或较低沉降速率以及等于或低于基本井眼流体的等效或较低的下垂中的至少一种，所述基准井眼流体包括基础流体和API级重晶体加重剂; 并且其中井筒流体与基准井眼流体的钻井相比，减少了井下工具的磨损。

5. 发明授权

US07918289B2 Method of completing a well with sand screens 有权
标题翻译：用砂筛完成井的方法
公开(公告)号：US07918289B2
公开(公告)日：2011-04-05
申请号：US11767143
申请日：2007-06-22
申请人： Doug Oakley , Gunnar Fimreite , Grete Svanes , Jarrod Massam , Andrew Bradbury
发明人： Doug Oakley , Gunnar Fimreite , Grete Svanes , Jarrod Massam , Andrew Bradbury
IPC分类号： E21B7/18
CPC分类号： C09K8/03 , C09K2208/10
摘要： A method for drilling and completing a wellbore that includes drilling a wellbore through a subterranean formation with a wellbore fluid, the wellbore fluid comprising: a base fluid; and micronized weighting agent; and disposing a sand screen in an interval of the wellbore with the wellbore fluid is disclosed.
摘要翻译：一种钻井和完井井的方法，包括用井眼流体穿过井下钻井，井筒流体包括：基础流体; 和微粉加权剂; 并且公开了在井眼与井筒流体的间隔中设置砂筛。

6. 发明申请

US20090071649A1 WELLBORE FLUIDS FOR CEMENT DISPLACEMENT OPERATIONS 审中-公开
标题翻译：用于水泥位移操作的井筒流体
公开(公告)号：US20090071649A1
公开(公告)日：2009-03-19
申请号：US12206388
申请日：2008-09-08
申请人： Doug Oakley , Mike Hodder , Andrew Bradbury , Jarrod Massam
发明人： Doug Oakley , Mike Hodder , Andrew Bradbury , Jarrod Massam
IPC分类号： E21B33/16
CPC分类号： C09K8/48 , C04B20/1022 , C09K8/424 , C04B14/04 , C04B14/28 , C04B14/368 , C04B20/008
摘要： A method of cementing a pipe into a wellbore filled with a drilling fluid that includes displacing the drilling fluid with the displacement fluid which includes a base fluid, a micronized weighting agent; suspending a pipe in the wellbore; and pumping cement into the wellbore to substantially fill the annulus formed between the outer surface of the pipe and the wellbore is disclosed.
摘要翻译：将管道固定到填充有钻井流体的井眼中的方法，该方法包括使钻井液与包含基础流体，微粉化加重剂的置换流体移位; 将管子悬挂在井筒中; 并且公开了将水泥泵送到井筒中以基本上填充在管的外表面和井筒之间形成的环形空间。

7. 发明申请

US20080167203A1 Additive For Reducing Torque On A Drill String 审中-公开
标题翻译：用于减少钻杆扭矩的添加剂
公开(公告)号：US20080167203A1
公开(公告)日：2008-07-10
申请号：US11816304
申请日：2006-02-22
申请人： Andrew Bradbury , Christopher Sawdon , Doug Oakley
发明人： Andrew Bradbury , Christopher Sawdon , Doug Oakley
IPC分类号： C10M173/00 , C10M101/02 , C10M171/06
CPC分类号： C10M173/00 , C09K8/03 , C09K8/035 , C10M171/06 , C10M173/02 , C10M2201/062 , C10M2201/084 , C10M2201/102 , C10M2209/084 , C10N2210/02 , C10N2210/08 , C10N2220/082 , C10N2230/06 , C10N2240/00 , C10N2250/12
摘要： A method of reducing the torque of a drill string used in drilling a subterranean well that includes injecting into the drilling fluid 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 (d5o) of less than ten 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：一种减少用于钻探地下井的钻柱的扭矩的方法，其包括向钻井液注入包括基础流体和聚合物涂覆的胶体固体材料的组合物。聚合物涂覆的胶态固体材料包括：重均粒径（d 5 o）小于10微米的固体颗粒和在所用的（即研磨）过程中涂覆在固体颗粒表面上的聚合物分散剂以制成胶体颗粒。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。

8. 发明授权

US06884760B1 Water based wellbore fluids 有权
标题翻译：水基井筒液体
公开(公告)号：US06884760B1
公开(公告)日：2005-04-26
申请号：US10019122
申请日：2000-06-13
申请人： Fabien J. Brand , Andrew Bradbury
发明人： Fabien J. Brand , Andrew Bradbury
IPC分类号： C09K8/08 , C09K8/20 , C09K8/62 , C09K7/02
CPC分类号： C09K8/08 , C09K8/206 , C09K8/62 , C09K2208/18 , Y10S507/901
摘要： The invention relates to water based wellbore fluids used during a hydrocarbon recovery process, such as drilling, fracturing, gravel packing and wellbore workover. According to the present invention, said wellbore fluid comprises a fluid loss additive and a bridging material that are hydrophobic in nature, hydrophobically modified or oil wettable. The wellbore fluid generates an active filter cake that once formed, is impermeable to an aqueous phase, thus reducing fluid loss and ensuring reduced damage to the formation, yet simultaneously is permeable to the back flow of hydrocarbons during a hydrocarbon recovery process.
摘要翻译：本发明涉及在烃回收过程中使用的水基井筒流体，例如钻井，压裂，砾石填充和井筒修井。根据本发明，所述井眼流体包括流体损失添加剂和本质上是疏水性的疏水改性或油润湿的桥接材料。井眼流体产生一旦形成的活性滤饼，对于水相是不可渗透的，因此减少了流体损失并且确保减少了对地层的损伤，同时在烃回收过程中也可以渗透烃。

9. 发明申请

US20050064509A1 Use of templated self assembly to create novel multifunctional species 审中-公开
标题翻译：使用模板自组装来创建新颖的多功能物种
公开(公告)号：US20050064509A1
公开(公告)日：2005-03-24
申请号：US10670167
申请日：2003-09-23
申请人： Andrew Bradbury , Geoff Waldo , Peter Pavlik
发明人： Andrew Bradbury , Geoff Waldo , Peter Pavlik
IPC分类号： C07K14/00 , C12N15/62 , G01N33/68 , G01N33/53 , C07K14/435 , G06F19/00
CPC分类号： G01N33/6845 , C07K14/00 , C07K2319/00 , C12N15/62 , G01N33/68 , G01N33/6842
摘要： The present invention provides self-assembling bifunctional polypeptides, kits comprising the self assembling bifunctional polypeptides, methods for assembling the bifunctional polypeptides, and methods for screening for the presence of an antigen using the bifunctional polypeptides.
摘要翻译：本发明提供自组装双功能多肽，包含自组装双功能多肽的试剂盒，用于组装双功能多肽的方法，以及使用双功能多肽筛选抗原存在的方法。

10. 发明授权

US07618927B2 Increased rate of penetration from low rheology wellbore fluids 有权
标题翻译：低流变性井眼液渗透率提高
公开(公告)号：US07618927B2
公开(公告)日：2009-11-17
申请号：US11741689
申请日：2007-04-27
申请人： Jarrod Massam , Doug Oakley , Todd Reid , Andrew Bradbury
发明人： Jarrod Massam , Doug Oakley , Todd Reid , Andrew Bradbury
IPC分类号： C09K8/74
CPC分类号： E21B21/00
摘要： A method of increasing a rate of penetration when drilling as compared to drilling with a baseline drilling fluid comprising an API-grade barite weighting agent and having a given sag, settling rate, density, flow rate, and pressure drop through a wellbore, comprising: circulating a drilling fluid comprising a base fluid and a micronized weighting agent through the wellbore; wherein the drilling fluid is characterized as having an equivalent density, an equivalent or lower settling rate, and an equivalent or lower sag than the baseline drilling fluid; wherein the circulating is at a higher flow rate than the baseline drilling fluid flow rate; and wherein the circulating results in an equivalent or lower pressure drop through the wellbore.
摘要翻译：一种与使用包括API级重晶剂并且具有给定的下垂，沉降速率，密度，流速和通过井眼的压降的基准钻井液钻井相比，钻井时提高渗透速率的方法，包括：将包含基础流体和微粉化加重剂的钻井液循环通过井筒; 其特征在于，钻井液的特征在于具有与基准钻井液相当的等效密度，等效或较低的沉降速率以及相当或更低的下垂; 其中所述循环的流速高于所述基准钻井液流速; 并且其中所述循环导致通过所述井眼的相当或更低的压降。

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