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1. 发明授权

US06932169B2 System and method for developing and recycling drilling fluids 失效
标题翻译：开发和回收钻井液的系统和方法
公开(公告)号：US06932169B2
公开(公告)日：2005-08-23
申请号：US10201419
申请日：2002-07-23
申请人： Glenda Wylie , Frank Zamora , Donald L. Whitfill
发明人： Glenda Wylie , Frank Zamora , Donald L. Whitfill
IPC分类号： E21B21/06
CPC分类号： E21B21/062 , E21B21/06
摘要： A system and method for developing and recycling drilling fluids at the site of a subterranean well is described, thus eliminating the need for transporting the fluids to the site.
摘要翻译：描述了用于在地下井的位置处开发和回收钻井液的系统和方法，从而消除了将流体运输到现场的需要。

2. 发明授权

US09022147B2 Drilling fluid that when mixed with a cement composition enhances physical properties of the cement composition 有权
标题翻译：当与水泥组合物混合时，钻井液能增强水泥组合物的物理性能
公开(公告)号：US09022147B2
公开(公告)日：2015-05-05
申请号：US13150438
申请日：2011-06-01
申请人： Krishna M. Ravi , Donald L. Whitfill , Rahul Chandrakant Patil , Abhimanyu Deshpande
发明人： Krishna M. Ravi , Donald L. Whitfill , Rahul Chandrakant Patil , Abhimanyu Deshpande
IPC分类号： C09K8/06 , C09K8/08 , C04B28/02 , C09K8/03 , C09K8/467
CPC分类号： C09K8/08 , C04B28/02 , C09K8/032 , C09K8/06 , C09K8/467 , C09K2208/00 , C04B2103/0068 , C04B2103/12 , C04B2103/22 , C04B2103/408 , C04B2103/44 , C04B12/04 , C04B14/28 , C04B14/30 , C04B14/308 , C04B14/368 , C04B24/02 , C04B24/18 , C04B24/24 , C04B24/38 , C04B24/383
摘要： According to an embodiment, a drilling fluid comprises: water and a set accelerator, wherein the drilling fluid has a 10 minute gel strength of less than 20 lb*ft/100 sq ft, wherein the drilling fluid has a density in the range of about 9 to about 14 pounds per gallon, wherein the drilling fluid remains pourable for at least 5 days, and wherein when at least one part of the drilling fluid mixes with three parts of a cement composition consisting of water and cement, the drilling fluid cement composition mixture develops a compressive strength of at least 1,200 psi. According to another embodiment, a method of using the drilling fluid comprises the steps of: introducing the drilling fluid into at least a portion of a subterranean formation, wherein at least a portion of the drilling fluid is capable of mixing with a cement composition.
摘要翻译：根据一个实施方案，钻井液包括：水和凝固加速器，其中钻井液具有小于20lb * ft / 100 sq ft的10分钟凝胶强度，其中钻井液的密度在约 9至约14磅/加仑，其中钻井液保持倾倒至少5天，并且其中当至少一部分钻井液与由水和水泥组成的水泥组合物的三部分混合时，钻井液水泥组合物混合物产生至少1,200psi的抗压强度。根据另一个实施例，使用钻井液的方法包括以下步骤：将钻井流体引入地下地层的至少一部分，其中钻井液的至少一部分能够与水泥组合物混合。

3. 发明授权

US08887808B2 Engineered methods and materials for wellbore strengthening in subterranean operations 有权
标题翻译：在地下作业中进行井筒加固的工程方法和材料
公开(公告)号：US08887808B2
公开(公告)日：2014-11-18
申请号：US13292516
申请日：2011-11-09
申请人： Arunesh Kumar , Sharath Savari , Donald L. Whitfill , Dale E. Jamison
发明人： Arunesh Kumar , Sharath Savari , Donald L. Whitfill , Dale E. Jamison
IPC分类号： E21B33/13 , E21B43/22 , C09K8/03 , C09K8/516
CPC分类号： E21B21/08 , C09K8/03 , C09K8/516 , C09K2208/08 , E21B7/00 , E21B21/003 , E21B33/12
摘要： A method of wellbore strengthening may include providing a wellbore strengthening fluid comprising a drilling fluid, a particulate, and a fiber; introducing the wellbore strengthening fluid into a wellbore penetrating a subterranean formation; and forming a plug comprising the particulate and the fiber in a void near the wellbore, the plug being capable of maintaining integrity at about 1000 psi or greater overbalance pressure.
摘要翻译：井眼加固的方法可以包括提供包括钻井液，颗粒和纤维的井眼加强流体; 将井眼加强流体引入穿透地下地层的井眼; 并且在孔眼附近的空隙中形成包含颗粒和纤维的塞子，该塞子能够在约1000psi或更大的超平衡压力下保持完整性。

4. 发明申请

US20140038857A1 Lost Circulation Material With A Multi-Modal Large Particle Size Distribution 审中-公开
标题翻译：具有多模态大粒径分布的失重循环材料
公开(公告)号：US20140038857A1
公开(公告)日：2014-02-06
申请号：US13563519
申请日：2012-07-31
申请人： Matthew L. Miller , Donald L. Whitfill
发明人： Matthew L. Miller , Donald L. Whitfill
IPC分类号： C09K8/035
CPC分类号： C09K8/035 , C09K2208/04
摘要： Compositions for lost circulation materials (LCM) and methods for using same in drilling and/or completing wellbores that help solve lost circulation problems in a wide range of fracture sizes, thereby advantageously eliminating the need for a variety of products for lost circulation in a field at any one time. An unexpected synergy and improved reduction in lost circulation is obtained. The invention provides specific LCM components in specific ratios that are analogs to lost circulation fractures and that yield superior performance in preventing or alleviating lost circulation in drilling and cementing boreholes. The invention compositions have a multi-modal particle size distribution (PSD) which provides a higher concentration of component materials in the same range of two or more fracture widths, thus allowing plugging to occur over a wider range than a single mode or narrow PSD.
摘要翻译：用于漏失循环材料的组合物（LCM）及其在钻井和/或完井孔中的使用方法，其有助于解决大范围的断裂尺寸中的流失问题，从而有利地消除了对各种产品在场中的流失的需要在任何一个时间获得了意想不到的协同效应和改善的流失量的减少。本发明提供特定比例的特定比例的LCM组分，其类似于失水循环裂缝，并且在防止或减轻钻井和固井钻孔中的流失中产生优异的性能。本发明组合物具有多模态粒度分布（PSD），其在两个或多个断裂宽度的相同范围内提供更高浓度的组分材料，从而允许在比单模式或窄PSD更宽的范围内发生堵塞。

5. 发明申请

US20090137431A1 Oilwell sealant compositions comprising alkali swellable latex 失效
公开(公告)号：US20090137431A1
公开(公告)日：2009-05-28
申请号：US12357335
申请日：2009-01-21
申请人： B. Raghava Reddy , Mark R. Savery , Krishna M. Ravi , Donald L. Whitfill
发明人： B. Raghava Reddy , Mark R. Savery , Krishna M. Ravi , Donald L. Whitfill
IPC分类号： 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.

6. 发明授权

US07284611B2 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：US07284611B2
公开(公告)日：2007-10-23
申请号：US10982016
申请日：2004-11-05
申请人： B. Raghava Reddy , Donald L. Whitfill , Krishna M. Ravi , Mark R. Savery
发明人： B. Raghava Reddy , Donald L. Whitfill , Krishna M. Ravi , Mark R. 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，以及钻井时提高有效裂缝坡度的方法。

7. 发明授权

US06968898B2 System and method for removing particles from a well bore penetrating a possible producing formation 失效
标题翻译：用于从穿透可能的生产地层的井眼中去除颗粒的系统和方法
公开(公告)号：US06968898B2
公开(公告)日：2005-11-29
申请号：US10185910
申请日：2002-06-28
申请人： Bradley L. Todd , Donald L. Whitfill , Jimmie B. Lawson
发明人： Bradley L. Todd , Donald L. Whitfill , Jimmie B. Lawson
IPC分类号： C09K8/14 , C09K8/52 , E21B21/00 , E21B21/14 , C09K7/02 , E21B31/03
CPC分类号： C09K8/52 , C09K8/145 , E21B21/00 , Y10S507/925
摘要： A system and method for removing particles from a well bore penetrating a possible hydrocarbon producing formation, according to which drilling fluid is mixed with a weighted material, and the mixture is introduced into a well bore so that the mixture scours any particles accumulated in the well bore. A well-completion fluid is introduced into the well bore that dissolves the weighted material.
摘要翻译：一种用于从穿透可能的生成烃的地层的井眼中去除颗粒的系统和方法，根据该系统和钻井液与加权材料混合，并将混合物引入井眼中，使得混合物冲洗积聚在井中的任何颗粒孔。将完井流体引入井眼中，以溶解加权材料。

8. 发明授权

US5012869A Method for restricting gas influx during well cementing 失效
标题翻译：固井期间限制瓦斯涌入的方法
公开(公告)号：US5012869A
公开(公告)日：1991-05-07
申请号：US592747
申请日：1990-10-03
申请人： Donald L. Whitfill , Lee E. Whitebay
发明人： Donald L. Whitfill , Lee E. Whitebay
IPC分类号： C04B28/26 , C09K8/44 , C09K8/512
CPC分类号： C09K8/44 , C04B26/04 , C04B28/26 , C09K8/512
摘要： A method of forming a flow-restricting layer on a wellbore surface prior to cementing a casing string in the wellbore. The flow-restricting layer is formed by reaction of an injected fluid with divalent ions at and near the wellbore surface. The injected fluid is a composition containing a water-soluble polymer and one or more potassium salts.
摘要翻译：在将套管柱固定在井眼中之前在井眼表面上形成流动限制层的方法。流动限制层通过注入的流体与井眼表面处和附近的二价离子的反应形成。注入流体是含有水溶性聚合物和一种或多种钾盐的组合物。

9. 发明授权

US3962099A Water base drilling mud composition 失效
标题翻译：水基钻井泥浆组合物
公开(公告)号：US3962099A
公开(公告)日：1976-06-08
申请号：US465027
申请日：1974-04-29
申请人： Donald L. Whitfill
发明人： Donald L. Whitfill
IPC分类号： C09K8/05 , C09K8/14 , C09K7/02 , C09K7/04
CPC分类号： C09K8/05 , C09K8/145
摘要： An improved water base drilling mud composition wherein calcium ions are controlled and converted to water-insoluble plant nutrient compounds by the use of monocalcium phosphate compounds, said composition comprising an aqueous suspension containing from about 5 to 35 pounds per barrel of a clay material, from about 1 to 5 pounds per barrel of an alkaline earth metal hydroxide selected from the group consisting of calcium hydroxide and mixtures of calcium hydroxide and barium hydroxide, and at least a stoichiometric amount, based on the weight of said alkaline earth metal hydroxide of said monocalcium phosphate containing compound.

10. 发明授权

US07776797B2 Lost circulation compositions 有权
标题翻译：迷失循环组成
公开(公告)号：US07776797B2
公开(公告)日：2010-08-17
申请号：US11337713
申请日：2006-01-23
申请人： Melissa G Allin , John L. Dennis, Jr. , Donald L. Whitfill
发明人： Melissa G Allin , John L. Dennis, Jr. , Donald L. Whitfill
IPC分类号： C09K8/588 , C09K8/528 , E21B33/13 , E21B43/22 , E21B33/00
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。

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