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1. 发明申请

US20120196777A1 Variable Pressure Weighting Material Particles 审中-公开
标题翻译：可变压力加权材料颗粒
公开(公告)号：US20120196777A1
公开(公告)日：2012-08-02
申请号：US13422524
申请日：2012-03-16
申请人： B. Raghava Reddy , Krishna Ravi , Michael Szymanski , Dale Jamison , Donald Whitfill
发明人： B. Raghava Reddy , Krishna Ravi , Michael Szymanski , Dale Jamison , Donald Whitfill
IPC分类号： C09K8/42
CPC分类号： C09K8/032 , B29C44/3496 , C04B20/002 , C04B28/02 , C04B2111/50 , C09K8/467 , C09K8/48 , Y02W30/92 , Y10T428/2982 , C04B14/24 , C04B20/0024 , C04B14/301 , C04B16/085 , C04B20/1051 , C04B16/08 , C04B18/082
摘要： Variable pressure weighting material particles that include a hollow, elastically deformable particle which itself comprises a wall and an internal fluid at a pressure of 15 psi to about 100 psi. The variable pressure weighting material particles generally include a hollow, elastically deformable particle that compresses during introduction into a subterranean formation and returns to substantially the same shape when removed from the subterranean formation.
摘要翻译：可变压力加权材料颗粒包括中空的可弹性变形的颗粒，其本身包括在15psi至约100psi的压力下的壁和内部流体。可变压力加重材料颗粒通常包括中空的可弹性变形的颗粒，其在引入地下地层期间压缩，并且当从地层中移除时返回到基本相同的形状。

2. 发明授权

US08202824B2 Variable density treatment fluids 有权
标题翻译：可变密度处理液
公开(公告)号：US08202824B2
公开(公告)日：2012-06-19
申请号：US12342856
申请日：2008-12-23
申请人： B. Raghava Reddy , Krishna Ravi , Michael Szymanski , Dale Jamison , Donald Whitfill
发明人： B. Raghava Reddy , Krishna Ravi , Michael Szymanski , Dale Jamison , Donald Whitfill
IPC分类号： C09K8/60
CPC分类号： C09K8/032 , B29C44/3496 , C04B20/002 , C04B28/02 , C04B2111/50 , C09K8/467 , C09K8/48 , Y02W30/92 , Y10T428/2982 , C04B14/24 , C04B20/0024 , C04B14/301 , C04B16/085 , C04B20/1051 , C04B16/08 , C04B18/082
摘要： The present invention provides variable density fluid compositions and methods for using such compositions in a subterranean formation. One exemplary embodiment of the variable density fluid compositions of the present invention comprises a variable density fluid comprising: a base fluid, and a portion of variable pressure weighting material particles.
摘要翻译：本发明提供了可变密度流体组合物和在地下地层中使用这种组合物的方法。本发明的可变密度流体组合物的一个示例性实施方案包括可变密度流体，其包含：基础流体和可变压力加权材料颗粒的一部分。

3. 发明申请

US20090163388A1 Variable Density Treatment Fluids 有权
标题翻译：可变密度处理液
公开(公告)号：US20090163388A1
公开(公告)日：2009-06-25
申请号：US12342856
申请日：2008-12-23
申请人： B. Raghava Reddy , Krishna Ravi , Michael Szymanski , Dale Jamison , Donald Whitfill
发明人： B. Raghava Reddy , Krishna Ravi , Michael Szymanski , Dale Jamison , Donald Whitfill
IPC分类号： C09K8/70
CPC分类号： C09K8/032 , B29C44/3496 , C04B20/002 , C04B28/02 , C04B2111/50 , C09K8/467 , C09K8/48 , Y02W30/92 , Y10T428/2982 , C04B14/24 , C04B20/0024 , C04B14/301 , C04B16/085 , C04B20/1051 , C04B16/08 , C04B18/082
摘要： The present invention provides variable density fluid compositions and methods for using such compositions in a subterranean formation. One exemplary embodiment of the variable density fluid compositions of the present invention comprises a variable density fluid comprising: a base fluid, and a portion of variable pressure weighting material particles.
摘要翻译：本发明提供了可变密度流体组合物和在地下地层中使用这种组合物的方法。本发明的可变密度流体组合物的一个示例性实施方案包括可变密度流体，其包含：基础流体和可变压力加权材料颗粒的一部分。

4. 发明申请

US20050113262A1 Variable density fluids and methods of use in subterranean formations 有权
标题翻译：可变密度流体和地下地层中使用的方法
公开(公告)号：US20050113262A1
公开(公告)日：2005-05-26
申请号：US10721055
申请日：2003-11-24
申请人： Krishna Ravi , Donald Whitfill , B. Reddy
发明人： Krishna Ravi , Donald Whitfill , B. Reddy
IPC分类号： C09K7/00
CPC分类号： C09K8/03 , C09K8/536 , C09K8/70 , C09K8/92
摘要： The present invention provides variable density fluid compositions and methods for using such compositions in a subterranean formation. One exemplary embodiment of the variable density fluid compositions of the present invention comprises a variable density fluid comprising: a base fluid; and a portion of elastic particles, the elastic particles having an isothermal compressibility factor in the range of from about 1.5×10−3 (1/psi) to about 1.5×10−9 (1/psi).
摘要翻译：本发明提供了可变密度流体组合物和在地下地层中使用这种组合物的方法。本发明的可变密度流体组合物的一个示例性实施方案包括可变密度流体，其包含：基础流体; 和一部分弹性颗粒，弹性颗粒具有在约1.5×10 -3（1 / psi）至约1.5×10 -9 -9范围内的等温可压缩因子（1psi）。

5. 发明申请

US20060096759A1 Methods and compositions for controlling lost circulation in subterranean operations 有权
标题翻译：控制地下作业中流失的方法和组成
公开(公告)号：US20060096759A1
公开(公告)日：2006-05-11
申请号：US10982016
申请日：2004-11-05
申请人： B. Reddy , Donald Whitfill , Krishna Ravi , Mark Savery
发明人： B. Reddy , Donald Whitfill , Krishna Ravi , Mark Savery
IPC分类号： E21B33/138 , E21B21/00
CPC分类号： C09K8/16 , C09K8/5045 , C09K8/508 , C09K8/516 , C09K2208/18
摘要： A lost circulation composition, that comprises a first portion of particles having a weight mean particle size of less than about 20 microns, a second portion of particles having a weight mean particle size in the range of from about 25 microns to about 400 microns, and a third portion of particles having a weight mean particle size in the range of from about 450 microns to about 1,500 microns, wherein the lost circulation composition has a multimodal particle size distribution, is provided, wherein resilient particles, particles comprising a thermoset polymer laminate, or a combination thereof are present in the lost circulation composition in an amount of at least about 20% by weight of the lost circulation composition, is provided. Drilling fluids, methods of controlling lost circulation, and methods of increasing an effective fracture gradient while drilling also are provided.
摘要翻译：一种失去循环的组合物，其包含重量平均粒度小于约20微米的第一部分颗粒，重量平均粒径在约25微米至约400微米范围内的第二部分颗粒，以及提供了重量平均粒度在约450微米至约1,500微米范围内的颗粒的第三部分，其中所述缺失循环组合物具有多峰粒度分布，其中弹性颗粒包含热固性聚合物层压体的颗粒，或其组合在损失循环组合物中的含量为至少约20重量％的损失循环组合物的量。提供钻井液，控制流失的方法以及在钻井时提高有效断裂梯度的方法。

6. 发明申请

US20060122071A1 Oilwell sealant compositions comprising alkali swellable latex 失效
公开(公告)号：US20060122071A1
公开(公告)日：2006-06-08
申请号：US11010117
申请日：2004-12-08
申请人： B. Reddy , Mark Savery , Krishna Ravi , Donald Whitfill
发明人： B. Reddy , Mark Savery , Krishna Ravi , Donald Whitfill
IPC分类号： E21B43/00 , C09K8/00
CPC分类号： C09K8/5045 , C09K8/506 , C09K8/508
摘要： Sealant compositions comprising an alkali swellable latex and a pH increasing material and methods of using the same to service a wellbore are provided. In one embodiment, the sealant composition can be used in a wellbore and includes an alkali swellable latex and a pH increasing material. The sealant composition can have a pH of from about 7 to about 14. In other embodiments, the pH increasing material includes a base-producing material. The base-producing material can include alkali and alkali earth metal carbonates, alkali and alkali earth metal bicarbonates, alkali and alkali earth metal hydroxides, alkali and alkali earth metal oxides, alkali and alkali earth metal phosphates, alkali and alkali earth metal hydrogen phosphates, alkali and alkaline earth metal sulphides, alkali and alkaline earth metal salts of silicates, alkali and alkaline earth metal salts of aluminates, water soluble or water dispersible organic amines, polymeric amine, amino alcohols, or combinations thereof.

7. 发明申请

US20050241827A1 Self-dissolving lost circulation treatment for producing formations 有权
标题翻译：用于生产地层的自溶式流失处理
公开(公告)号：US20050241827A1
公开(公告)日：2005-11-03
申请号：US11088559
申请日：2005-03-24
申请人： Donald Whitfill , Bradley Todd , Trinidad Munoz , Ashley Donaldson
发明人： Donald Whitfill , Bradley Todd , Trinidad Munoz , Ashley Donaldson
IPC分类号： F16D69/02 , E21B33/138
CPC分类号： C09K8/512
摘要： Methods and compositions for sealing subterranean zones having temperatures in the range of about 80° F. to about 300° F. are provided. In a method of the invention, a sealing composition of the invention of water, a substantially fully hydrated depolymerized polymer and poly lactic acid, with a pH above about 8.5, is introduced into the subterranean zone wherein it becomes substantially rigid and seals the zone when exposed to subterranean zone temperatures above about 80° F. The methods and compositions are particularly advantageous for use in producing zones because the rigid sealing composition self dissolves over time, freeing the seal and the zone for production of fluids. Moreover, the composition is environmentally compatible.
摘要翻译：提供了用于密封温度在约80°F至约300°F范围内的地下区域的方法和组合物。在本发明的方法中，将本发明的水，基本上完全水合的解聚聚合物和聚乳酸的pH值高于约8.5的密封组合物引入到地下区域中，其中其变得基本上刚性并且当暴露于高于约80°F的地下区域温度。该方法和组合物特别有利于用于生产区域，因为刚性密封组合物自身随时间溶解，释放密封件和产生流体的区域。此外，组合物与环境相容。

8. 发明申请

US20070173412A1 Lost circulation compositions 有权
标题翻译：迷失循环组成
公开(公告)号：US20070173412A1
公开(公告)日：2007-07-26
申请号：US11337713
申请日：2006-01-23
申请人： Melissa Allin , John Dennis , Donald Whitfill
发明人： Melissa Allin , John Dennis , Donald Whitfill
IPC分类号： C09K8/00 , E21B43/00
CPC分类号： C09K8/512 , C09K8/68
摘要： A lost circulation composition for use in a wellbore comprising a crosslinkable polymer system and a filler.
摘要翻译：一种用于井眼的易挥发组合物，其包含可交联聚合物体系和填料。

9. 发明申请

US20070169937A1 Methods of using lost circulation compositions 有权
标题翻译：使用迷失循环组合物的方法
公开(公告)号：US20070169937A1
公开(公告)日：2007-07-26
申请号：US11337707
申请日：2006-01-23
申请人： Melissa Allin , John Dennis , Donald Whitfill
发明人： Melissa Allin , John Dennis , Donald Whitfill
IPC分类号： E21B33/138
CPC分类号： C09K8/5083 , C09K8/512
摘要： A method of servicing a wellbore in contact with a subterranean formation, comprising: placing a wellbore servicing fluid comprising a crosslinkable polymer system and a filler into a lost circulation zone within the wellbore. A method of blocking the flow of fluid through a lost circulation zone in a subterranean formation comprising placing a first composition comprising a packing agent into the lost circulation zone, placing a second composition comprising a crosslinkable polymer system and a filler into the lost circulation zone, and allowing the compositions to set into place.
摘要翻译：一种维护与地下地层接触的井眼的方法，包括：将包含可交联聚合物体系和填料的井眼维修流体放置在井筒内的失水循环区域中。一种阻止流体通过地下地层中的失水循环区的流动的方法，包括将包含填料的第一组合物放入到所述失水循环区中，将包含可交联聚合物体系和填料的第二组合物放入所述流失区中，并允许组合物放置到位。

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