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1. 发明授权

US06605570B2 Compositions and methods to control fluid loss in surfactant-based wellbore service fluids 有权
公开(公告)号：US06605570B2
公开(公告)日：2003-08-12
申请号：US09851925
申请日：2001-05-08
申请人： Matthew J. Miller , Mathew Samuel , Palathinkara S. Vinod , Thomas N. Olsen
发明人： Matthew J. Miller , Mathew Samuel , Palathinkara S. Vinod , Thomas N. Olsen
IPC分类号： E21B4326
CPC分类号： C09K8/887 , C09K8/685 , C09K2208/30 , Y10S507/903 , Y10S507/922
摘要： Herein is disclosed a well completion or stimulation fluid, comprising (i) a carrier fluid; (ii) a viscoelastic surfactant; and (iii) a fluid loss control additive (FLA) comprising at least one polymer and at least one crosslinker. The fluid may further comprise proppant or gravel, if it is intended for use as a fracturing fluid or a gravel packing fluid, although such uses do not require that the fluid comprise proppant or gravel. Also disclosed herein are methods of fracturing a subterranean formation, comprising (i) providing a fracturing fluid discussed above and (ii) injecting the fracturing fluid into the formation at a pressure sufficiently high to fracture the formation. In addition, disclosed herein are methods of gravel packing a wellbore, comprising (i) providing a gravel packing fluid discussed above and (ii) injecting the gravel packing fluid into the wellbore.

2. 发明授权

US06638896B1 Fluids and techniques for hydrocarbon well completion 有权
标题翻译：油气井完井的流体和技术
公开(公告)号：US06638896B1
公开(公告)日：2003-10-28
申请号：US09651059
申请日：2000-08-30
申请人： Raymond J. Tibbles , Mehmet Parlar , Frank F. Chang , Diankui Fu , Jonathan Mark Davison , Elizabeth W. A. Morris , Antje M. Wierenga , Palathinkara S. Vinod
发明人： Raymond J. Tibbles , Mehmet Parlar , Frank F. Chang , Diankui Fu , Jonathan Mark Davison , Elizabeth W. A. Morris , Antje M. Wierenga , Palathinkara S. Vinod
IPC分类号： C09K702
CPC分类号： C09K8/52 , C09K2208/24 , Y10S507/925
摘要： The Invention relates to fluids and techniques to optimize/enhance the production of hydrocarbon from subterranean formations (e.g., “completion fluids”), in particular, fluids and techniques are. disclosed and claimed which remove wellbore damage and near-wellbore damage in the form of coating formed from drilling and production-related operations (“filtercake”); the techniques can be applied either by themselves or in conjunction with other completion operations, such as gravel packing; preferred embodiments are chelating agent and enzyme systems in a viscoelastic surfactant (VES) matrix.
摘要翻译：本发明涉及用于优化/增强从地下地层（例如“完井液”）的烃的生产的流体和技术，特别是流体和技术。公开和要求的，其以钻井和生产相关操作（“滤饼”）形成的涂层形式去除井眼损坏和近井眼损坏; 这些技术可以自己或与其他完井操作结合使用，例如砾石充填; 优选的实施方案是粘弹性表面活性剂（VES）基质中的螯合剂和酶体系。

3. 发明授权

US06435277B1 Compositions containing aqueous viscosifying surfactants and methods for applying such compositions in subterranean formations 有权
标题翻译：含有水性增粘表面活性剂的组合物和在地下地层中施用这种组合物的方法
公开(公告)号：US06435277B1
公开(公告)日：2002-08-20
申请号：US09256980
申请日：1999-02-23
申请人： Qi Qu , Erik B. Nelson , Dean M. Willberg , Mathew M. Samuel , Jesse C. Lee, Jr. , Frank F. Chang , Roger J. Card , Palathinkara S. Vinod , J. Ernest Brown , Ronnie L. Thomas
发明人： Qi Qu , Erik B. Nelson , Dean M. Willberg , Mathew M. Samuel , Jesse C. Lee, Jr. , Frank F. Chang , Roger J. Card , Palathinkara S. Vinod , J. Ernest Brown , Ronnie L. Thomas
IPC分类号： E21B4326
CPC分类号： C09K8/68 , C09K8/74 , C09K2208/30 , E21B43/26 , Y10S507/923 , Y10S507/933
摘要： The improved recovery of hydrocarbons from subterranean formations by hydraulically fracturing a subterranean formation is accomplished. Fracturing fluids using a viscosifying surfactant fluid containing viscosifying micelles, for example, wormlike micelles, are useful to improve recovery of hydrocarbons and limit the loss of fracturing fluid into the formation fracture face. The invention further relates to novel fracturing and acidizing methods useful for increasing hydrocarbon production, limiting water production, resisting fracturing fluid loss into the subterranean formation, and reducing the equipment requirements in mixing and pumping fracturing fluid. The action of viscosifying micelles of surfactant in aqueous zones of the subterranean formation diverts fracturing fluid or acid from the aqueous zones to the hydrocarbon-bearing zones and also facilitates the flowback of increased amounts of hydrocarbons once a fractured well is placed back on production. These methods selectively block the pore structure in a water-bearing zone and do not blocking the pore structure of a hydrocarbon zone at the formation face. The step for selectively blocking forms a plug of a viscous fluid containing viscosifying micelles in the pore structure of the water-bearing zone at the formation face.
摘要翻译：通过水力压裂地下地层来改善地下地层烃类的回收。使用含有增粘胶束（例如蠕虫状胶束）的增粘表面活性剂流体的压裂液可用于改善烃的回收并限制压裂流体进入地层断裂面的损失。本发明还涉及用于增加碳氢化合物生产，限制水的产生，抵抗压裂液渗入地层的压裂和酸化方法，以及减少混合和泵送压裂液的设备要求。表面活性剂粘附在地下水层中的胶束的作用将压裂液或酸从含水区转移到含烃区，并且一旦断裂的井放回生产中，也有利于增加量的烃的回流。这些方法选择性地阻挡含水区中的孔结构，并且不阻塞在形成面上的烃区的孔结构。选择性阻塞的步骤在形成面上的含水区的孔结构中形成含有粘胶束的粘性流体塞。

4. 发明授权

US06140277A Fluids and techniques for hydrocarbon well completion 失效
公开(公告)号：US06140277A
公开(公告)日：2000-10-31
申请号：US224440
申请日：1998-12-31
申请人： Raymond J. Tibbles , Mehmet Parlar , Frank F. Chang , Diankui Fu , Jonathan Mark Davison , Elizabeth W. A. Morris , Antje M. Wierenga , Palathinkara S. Vinod
发明人： Raymond J. Tibbles , Mehmet Parlar , Frank F. Chang , Diankui Fu , Jonathan Mark Davison , Elizabeth W. A. Morris , Antje M. Wierenga , Palathinkara S. Vinod
IPC分类号： C09K8/52 , C09K7/02 , E21B21/00
CPC分类号： C09K8/52 , C09K2208/24 , Y10S507/925
摘要： The Invention relates to novel fluids and techniques to optimize/enhance the production of hydrocarbon from subterranean formations (e.g., "completion fluids"), in particular, fluids and techniques are disclosed and claimed which remove wellbore damage and near-wellbore damage in the form of coating formed from drilling and production-related operations ("filtercake"); the techniques can be applied either by themselves or in conjunction with other completion operations, such as gravel packing; preferred embodiments are chelating agent and enzyme systems in a viscoelastic surfactant (VES) matrix.

5. 发明授权

US06569814B1 Fluids and techniques for hydrocarbon well completion 有权
标题翻译：油气井完井的流体和技术
公开(公告)号：US06569814B1
公开(公告)日：2003-05-27
申请号：US09552853
申请日：2000-04-20
申请人： Mark E. Brady , Wayne W. Frenier , Palathinkara S. Vinod
发明人： Mark E. Brady , Wayne W. Frenier , Palathinkara S. Vinod
IPC分类号： C09K702
CPC分类号： C09K8/52 , C09K2208/24 , Y10S507/925
摘要： The Invention relates to novel fluids and techniques to optimize/enhance the production of hydrocarbon from subterranean formations (e.g., “completion fluids”), in particular, fluids and techniques are disclosed and claimed which remove wellbore damage and near-wellbore damage in the form of coating formed from drilling and production-related operations (“filtercake”); the techniques can be applied either by themselves or in conjunction with other completion operations, such as gravel packing; preferred embodiments are chelating agent and enzyme systems in a viscoelastic surfactant (VES) matrix.
摘要翻译：本发明涉及用于优化/增强从地下地层（例如“完井流体”）的烃的生产的新型流体和技术，特别是公开和要求保护的流体和技术，其中以流体和技术的形式去除了井眼损坏和近井眼损伤由钻井和生产相关的操作形成的涂层（“滤饼”）; 这些技术可以自己或与其他完井操作结合使用，例如砾石充填; 优选的实施方案是粘弹性表面活性剂（VES）基质中的螯合剂和酶体系。

6. 发明授权

US5979557A Methods for limiting the inflow of formation water and for stimulating subterranean formations 失效
标题翻译：限制地层水流入和刺激地下地层的方法
公开(公告)号：US5979557A
公开(公告)日：1999-11-09
申请号：US865137
申请日：1997-05-29
申请人： Roger J. Card , J. Ernest Brown , Palathinkara S. Vinod , Dean M. Willberg , Mathew M. Samuel , Frank F. Chang
发明人： Roger J. Card , J. Ernest Brown , Palathinkara S. Vinod , Dean M. Willberg , Mathew M. Samuel , Frank F. Chang
IPC分类号： C09K8/62 , C09K8/68 , C09K8/74 , E21B43/27 , C09K3/00 , E21B33/00
CPC分类号： C09K8/68 , C09K8/74 , C09K2208/30 , Y10S507/922 , Y10S507/923 , Y10S507/933
摘要： A method is provided for limiting the inflow of formation water during a well turn around to maximize polymer recovery after a hydraulic fracturing treatment of a formation. The method includes a step for selectively blocking the pore structure in a water-bearing zone and not blocking the pore structure of a hydrocarbon zone at the formation face; performing a hydraulic fracturing treatment using a fluid having a polymer; and turning the well around to recover the polymer. There is also provided a method of acidizing, preferably matrix acidizing, a formation having a hydrocarbon zone and a water-bearing zone. The method includes a step for selectively blocking the pore structure in the water-bearing zone at the formation face to selectively retard migration of acid into the water-bearing zone; and injecting acid into the formation, wherein the acid is diverted from the water-bearing zone to the hydrocarbon zone as a result of the selective blocking step. When the water-bearing zone contains a residual amount of hydrocarbon residues, the method further includes injecting a mutual solvent prior to the step for selectively blocking.In these methods, the step for selectively blocking preferably forms a plug of a viscous fluid in the pore structure of the water-bearing zone at the formation face. The viscous fluid preferably has at least a viscoelastic surfactant capable of forming a worm-like micelle in an aqueous environment, a water-soluble salt to effect formation stability, and an aqueous carrier fluid.
摘要翻译：提供了一种方法，用于限制地层水在井身转弯期间的流入，以使地层的水力压裂处理后的聚合物回收率最大化。该方法包括用于选择性地阻挡含水区中的孔结构并且不阻挡在形成面上的烃区的孔结构的步骤; 使用具有聚合物的流体进行水力压裂处理; 并将井旋转以回收聚合物。还提供了一种酸化，优选基质酸化具有烃区和含水区的地层的方法。该方法包括选择性地阻挡地层表面的含水区中的孔结构以选择性地阻止酸进入含水区的步骤; 并且将酸注入到地层中，其中作为选择性阻隔步骤的结果，酸从含水区转移到烃区。当含水区域含有残留量的烃残留物时，该方法还包括在该步骤之前注入相互溶剂用于选择性阻断。在这些方法中，用于选择性阻挡的步骤优选在形成面上的含水区的孔结构中形成粘性流体的塞子。粘性流体优选至少具有能够在水性环境中形成蠕虫状胶束的粘弹性表面活性剂，形成稳定性的水溶性盐和水性载体流体。

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