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1. 发明授权

US07066258B2 Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures 失效
$Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures$
标题翻译：减少密度的支撑剂和使用减少密度的支撑剂来增强其在井眼和骨折中的运输的方法
公开(公告)号：US07066258B2
公开(公告)日：2006-06-27
申请号：US10615543
申请日：2003-07-08
申请人： Donald Justus , Bradley L. Todd , Philip D. Nguyen
发明人： Donald Justus , Bradley L. Todd , Philip D. Nguyen
IPC分类号： E21B43/04 , E21B43/267
CPC分类号： C09K8/805 , C09K8/516 , Y10S507/924 , Y10T428/2998
摘要： The present invention provides reduced-density coated particulates and methods for enhancing the transport of such particulates into well bores and fractures, and for enhancing the conductivity and permeability of subterranean formations using such particulates, and for sand control treatments using such particulates. The reduced-density, coated particulates of the present invention generally comprise particulate having a surface and a coating wherein the surface comprises a porous or partially hollow geometry and coating is capable of trapping a fluid between the particulate's surface and the coating.
摘要翻译：本发明提供了减少密度的涂覆颗粒和用于增强这些颗粒进入井眼和裂缝的方法，以及使用这种颗粒增强地下地层的导电性和渗透性，以及使用这种颗粒进行防砂处理。本发明的降低密度的涂覆颗粒通常包括具有表面和涂层的颗粒，其中表面包括多孔或部分中空的几何形状，并且涂层能够在颗粒的表面和涂层之间捕获流体。

2. 发明申请

US20060070740A1 System and method for fracturing a hydrocarbon producing formation 审中-公开
$System and method for fracturing a hydrocarbon producing formation$
标题翻译：用于压裂烃生产地层的系统和方法
公开(公告)号：US20060070740A1
公开(公告)日：2006-04-06
申请号：US10958434
申请日：2004-10-05
申请人： Jim Surjaatmadja , Billy McDaniel , Donald Justus
发明人： Jim Surjaatmadja , Billy McDaniel , Donald Justus
IPC分类号： E21B43/26 , E21B28/00
CPC分类号： E21B43/114 , E21B43/26
摘要： A system and method for fracturing a hydrocarbon producing formation in which a fracturing tool is inserted in a wellbore adjacent the formation, and fracturing fluid is introduced into the annulus between the fracturing tool and the wellbore and flows to the formation.
摘要翻译：将压裂工具插入靠近地层的井眼中的压裂生产地层的压裂系统和方法，并且压裂液被引入到压裂工具与井眼之间的环形空间中并流动到地层中。

3. 发明申请

US20050006095A1 Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures 失效
$Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures$
标题翻译：减少密度的支撑剂和使用减少密度的支撑剂来增强其在井眼和骨折中的运输的方法
公开(公告)号：US20050006095A1
公开(公告)日：2005-01-13
申请号：US10615543
申请日：2003-07-08
申请人： Donald Justus , Bradley Todd , Philip Nguyen
发明人： Donald Justus , Bradley Todd , Philip Nguyen
IPC分类号： C09K8/516 , C09K8/80 , E21B33/13
CPC分类号： C09K8/805 , C09K8/516 , Y10S507/924 , Y10T428/2998
摘要： The present invention provides reduced-density coated particulates and methods for enhancing the transport of such particulates into well bores and fractures, and for enhancing the conductivity and permeability of subterranean formations using such particulates, and for sand control treatments using such particulates. The reduced-density, coated particulates of the present invention generally comprise particulate having a surface and a coating wherein the surface comprises a porous or partially hollow geometry and coating is capable of trapping a fluid between the particulate's surface and the coating.
摘要翻译：本发明提供了减少密度的涂覆颗粒和用于增强这些颗粒进入井眼和裂缝的方法，以及使用这种颗粒增强地下地层的导电性和渗透性，以及使用这种颗粒进行防砂处理。本发明的降低密度的涂覆颗粒通常包括具有表面和涂层的颗粒，其中表面包括多孔或部分中空的几何形状，并且涂层能够在颗粒的表面和涂层之间捕获流体。

4. 发明申请

US20050006089A1 Low cost method and apparatus for fracturing a subterranean formation with a sand suspension 有权
$Low cost method and apparatus for fracturing a subterranean formation with a sand suspension$
标题翻译：用砂悬浮液压裂地层的低成本方法和装置
公开(公告)号：US20050006089A1
公开(公告)日：2005-01-13
申请号：US10616054
申请日：2003-07-09
申请人： Donald Justus , David Ritter , Sanjay Vitthal
发明人： Donald Justus , David Ritter , Sanjay Vitthal
IPC分类号： E21B43/267 , E21B43/26 , E21B47/00
CPC分类号： E21B43/267 , Y10T137/0329 , Y10T137/2499
摘要： The present invention is directed to a low cost method and apparatus for fracturing a subterranean formation. The invention involves using a centrifugal pump to combine a fracture fluid, a sand suspension and liquid additive and discharge a mixture of these components into a high pressure pump that injects the mixture into the subterranean formation. The apparatus employs a control pinch valve to precisely control the amount of sand suspension being added to the mixture. The apparatus eliminates the need for expensive blenders, other equipment and associated personnel and provides a low cost means of fracturing the subterranean formation.
摘要翻译：本发明涉及用于压裂地层的低成本方法和装置。本发明涉及使用离心泵来组合断裂流体，沙子悬浮液和液体添加剂并将这些组分的混合物排放到将混合物注入到地层中的高压泵中。该装置采用控制夹紧阀精确控制加入到混合物中的沙粒悬浮液的量。该设备消除了对昂贵的搅拌机，其他设备和相关人员的需要，并且提供了一种低成本的将地层破碎的方法。

5. 发明申请

US20050263284A1 Hydrajet perforation and fracturing tool 有权
$Hydrajet perforation and fracturing tool$
标题翻译： Hydrajet穿孔和压裂工具
公开(公告)号：US20050263284A1
公开(公告)日：2005-12-01
申请号：US10856903
申请日：2004-05-28
申请人： Donald Justus
发明人： Donald Justus
IPC分类号： E21B43/114 , E21B43/26
CPC分类号： E21B43/26 , E21B43/114
摘要： The present invention is directed to a method and apparatus for fracturing a subterranean formation which use a fracturing tool. The fracturing tool includes a hydrajet tool, with at least one fluid jet and at least one fracturing port extending through the liner. The fracturing tool further includes a rotating sleeve with at least one interior fracturing port and at least one interior fluid jet port. Finally, the fracturing tool may include a power unit capable of changing the orientation of the rotating sleeve. During fracturing operations, fracturing fluid is pressured through the fluid jet to form microfractures. The orientation of the rotating sleeve may then be changed and fluid may be forced through the fracturing ports to form fractures by the stagnation pressure of the fracturing fluid.
摘要翻译：本发明涉及使用压裂工具压裂地层的方法和装置。压裂工具包括具有至少一个流体射流和延伸穿过该衬套的至少一个压裂端口的液压喷射工具。压裂工具还包括具有至少一个内部压裂端口和至少一个内部流体喷射口的旋转套管。最后，压裂工具可以包括能够改变旋转套管的取向的动力单元。在压裂作业过程中，压裂液通过流体射流加压形成微裂缝。然后可以改变旋转套筒的取向，并且流体可能被迫通过压裂端口，以通过压裂流体的停滞压力形成裂缝。

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