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1. 发明申请

US20110017450A1 METHOD FOR MAKING GRAVEL FILTERS IN OIL WELLS 审中-公开
标题翻译：在油井中制造砂浆过滤器的方法
公开(公告)号：US20110017450A1
公开(公告)日：2011-01-27
申请号：US12508088
申请日：2009-07-23
申请人： Alejandro Pietrobelli , Fausto Pietrobelli
发明人： Alejandro Pietrobelli , Fausto Pietrobelli
IPC分类号： E21B43/04 , E21B29/00 , E21B33/12
CPC分类号： E21B43/04 , E21B29/00
摘要： A method for making gravel filters in oil well bores by ascertaining the location of a producing formation adjacent to a cemented casing in a well bore. Water formation may exist between oil formations. The next step involves cutting a portion of the casing adjacent to the producing formation. A section mill equipment is used to cut, continuously, the cemented casing. The bore adjacent to the producing formation is enlarged. An underreamer is utilized to remove the surrounding cemented space and enlarge the oil well diameter. Then a sufficient amount of gravel is deposited in the enlarged portion of the bore to create an effective filter for a producing tube with a screen at its distal end positioned adjacent to the cemented bottom of the well bore.
摘要翻译：通过确定在井眼中与胶结壳体相邻的生产地层的位置，在油井孔中制造砾石过滤器的方法。油层之间可能存在水分形成。下一个步骤涉及切割邻近生产地层的壳体的一部分。切割机设备用于连续切割胶合套管。与生产地层相邻的孔扩大。利用一个扩孔器去除周围的固井空间，扩大油井直径。然后，足够量的砾石沉积在孔的扩大部分中以产生用于生产管的有效过滤器，其中筛管在其远端位于邻近井眼的粘结底部。

2. 发明授权

US06675890B2 Packing device for oil wells 有权
标题翻译：油井包装装置
公开(公告)号：US06675890B2
公开(公告)日：2004-01-13
申请号：US10100571
申请日：2002-03-15
申请人： Alejandro Pietrobelli , Fausto Pietrobelli
发明人： Alejandro Pietrobelli , Fausto Pietrobelli
IPC分类号： E21B2306
CPC分类号： E21B23/06
摘要： A packing tool assembly for sealing oil well bores that basically includes an elongated tubular member, two deformable sealing units, two stopper ring members and a cylinder member. A setting tool transports the packing tool assembly and the former stays in the oil well bore during the preparation and sealing phases without requiring the typical time-consuming withdrawal. When the preparation phase has been completed, the packing tool assembly is disengaged from setting tool and the sealing phase starts immediately. The latch members of the setting tool are received within the internal locking channels of the cylinder member. The setting tool is then rotated to cause the cylinder member to advance towards stopper ring members, deforming outwardly the sealing units. The latter are expanded against the walls of oil well bore. Once expanded the sealing units, the setting tool is removed and a tool for the extraction phase is inserted. By expanding the sealing units, the oil is forced to flow through the filter avoiding sand and mud.
摘要翻译：一种用于密封油井孔的包装工具组件，其基本上包括细长管状构件，两个可变形密封单元，两个止动环构件和气缸构件。设置工具运输包装工具组件，前者在准备和密封阶段停留在油井中，而不需要典型的耗时的抽出。准备阶段完成后，包装工具组件与设定工具脱开，密封阶段立即开始。固定工具的闩锁构件容纳在气缸构件的内部锁定通道内。然后旋转固定工具使气缸构件向止动环构件前进，使密封单元向外变形。后者针对油井的墙壁扩展。一旦膨胀密封单元，移除固定工具并插入用于提取阶段的工具。通过膨胀密封单元，油被迫流过过滤器，避免沙子和泥土。

3. 发明授权

US06920923B1 Section mill for wells 有权
标题翻译：井磨机
公开(公告)号：US06920923B1
公开(公告)日：2005-07-26
申请号：US10666015
申请日：2003-09-22
申请人： Alejandro Pietrobelli , Fausto Pietrobelli
发明人： Alejandro Pietrobelli , Fausto Pietrobelli
IPC分类号： E21B10/66 , E21B29/00
CPC分类号： E21B29/005
摘要： A section mill for casings used in oil wells to cut predetermined portions for repair purposes. An elongated cylindrical assembly is inserted through the casing and it includes at least two spaced apart apertures with one blade member pivotally mounted within each aperture. First and second coaxially disposed tubular shaft assemblies with teethed portions to coact with the blades to selectively move them between two extreme position upon the application of a pressurized fluid. The fluid needs to overcome the spring biased applied to the shaft assemblies. The first set of blades is stopped and slidably rotates in contact with the internal surface of the casing. The second set cuts through the casing with one end and sections the casing with the other end. After wearing off, the first set of blades continues the sectioning work.
摘要翻译：用于油井的切割机用于切割预定部分用于维修目的。细长的圆柱形组件插入通过壳体并且其包括至少两个间隔开的孔，其中一个叶片构件枢转地安装在每个孔内。第一和第二同轴设置的管状轴组件，其具有与刀片共同作用的端部，以在施加加压流体时在两个极限位置之间选择性地将它们移动。流体需要克服施加到轴组件上的弹簧偏置。第一组叶片被停止并且可滑动地与壳体的内表面接触地旋转。第二套通过一端穿过套管，并将套管与另一端分开。磨损后，第一套刀片继续进行切片工作。

4. 发明授权

US08225870B1 Method for making windows in oil well casings 有权
标题翻译：在油井套管中制作窗户的方法
公开(公告)号：US08225870B1
公开(公告)日：2012-07-24
申请号：US13024036
申请日：2011-02-09
申请人： Alejandro Pietrobelli , Fausto Pietrobelli
发明人： Alejandro Pietrobelli , Fausto Pietrobelli
IPC分类号： E21B43/04
CPC分类号： E21B29/00 , E21B43/04
摘要： A method for making gravel filters in oil well bores. The first step involves ascertaining the location of a producing formation adjacent to a cemented casing in a well bore. Then, a portion of the casing adjacent to the producing formation is cut, enlarging the bore adjacent to the producing formation. Subsequently, a sufficient amount of gravel is deposited in the enlarged portion of the bore to create an effective filter for a producing tube with a screen at its distal end. The distal end is positioned adjacent to the cemented bottom of the well bore. The method maximizes the diameter of the gravel deposited by delivering it exteriorly of the screen of the producing tube and through the annular space defined and sealed between the screen and the casing.
摘要翻译：一种在油井孔中制造砾石过滤器的方法。第一步涉及在井眼中确定与胶结壳体相邻的生产地层的位置。然后，切割邻近生产地层的壳体的一部分，扩大邻近生产地层的孔。随后，足够量的砾石沉积在孔的扩大部分中以在其远端处产生用于具有筛网的生产管的有效过滤器。远端位于井眼的胶结底部附近。该方法通过将生产管的筛网外部输送并且通过屏幕和壳体之间限定和密封的环形空间来最大化沉积的砾石的直径。

5. 发明授权

US6009961A Underreamer with turbulence cleaning mechanism 有权
标题翻译：用湍流清洗机制吹嘘
公开(公告)号：US6009961A
公开(公告)日：2000-01-04
申请号：US253498
申请日：1999-02-19
申请人： Fausto Pietrobelli , Alejandro Pietrobelli
发明人： Fausto Pietrobelli , Alejandro Pietrobelli
IPC分类号： E21B10/32 , E21B7/28
CPC分类号： E21B10/322
摘要： An underreamer with pressurized water activated lateral cutters pivotally mounted thereon and being spring biased to urge them in longitudinal alignment with the underreamer. A removable constrictor socket is cooperatively mounted adjacent to the distal end of the piston rod so that a user can select one of several designs depending on the magnitude of drill fluid pressure to be applied on the bottom of the well. The lower end of the underreamer is provided with several contiguous cutting teeth arranged in a circle with a relatively small separation inbetween so that it may continue to work even if the well collapses. The cutting teeth enhance the turbulence of the drill fluid. The underreamer is lubricated with drilling fluid applied up to a predetermined pressure without opening the lateral cutters. After a given predetermined amount of pressure, the lateral cutters open perpendicularly.
摘要翻译：具有可旋转地安装在其上的加压水活化的侧向切割器的扩孔器，并且被弹簧偏置以促使它们与所述扩孔器纵向对齐。可拆卸的压缩插座与活塞杆的远端相邻地协同地安装，使得用户可以根据要施加在井的底部的钻井液压力的大小来选择若干设计之一。该扩孔器的下端设置有几个相邻的切割齿，其布置成圆形，间隔相对较小，使得即使井塌陷也可继续工作。切割齿增强了钻井液的湍流。在没有打开横切刀的情况下，使用钻井液润滑到预定压力的润滑器。在给定的预定量的压力之后，横向刀具垂直地打开。

6. 发明授权

US5896940A Underreamer 失效
标题翻译：深呼
公开(公告)号：US5896940A
公开(公告)日：1999-04-27
申请号：US926637
申请日：1997-09-10
申请人： Fausto Pietrobelli , Alejandro Pietrobelli
发明人： Fausto Pietrobelli , Alejandro Pietrobelli
IPC分类号： E21B10/32 , E21B7/28
CPC分类号： E21B10/322
摘要： An underreamer with pressurized water activated lateral cutters pivotally mounted thereon and being spring biased to urge them in longitudinal alignment with the underreamer. A removable constrictor socket is cooperatively mounted adjacent to the distal end of the piston rod so that a user can select one of several designs depending on the magnitude of drill fluid pressure to be applied on the bottom of the well. The lower end of the underreamer is provided with several contiguous cutting teeth arranged in a circle with a relatively small separation inbetween so that it may continue to work even if the well collapses. The cutting teeth enhance the turbulence of the drill fluid. The underreamer is lubricated with drilling fluid applied up to a predetermined pressure without opening the lateral cutters. After a given predetermined amount of pressure, the lateral cutters open perpendicularly.
摘要翻译：具有可旋转地安装在其上的加压水活化的侧向切割器的扩孔器，并且被弹簧偏置以促使它们与所述扩孔器纵向对齐。可拆卸的压缩插座与活塞杆的远端相邻地协同地安装，使得用户可以根据要施加在井的底部的钻井液压力的大小来选择若干设计之一。该扩孔器的下端设置有几个相邻的切割齿，其布置成圆形，间隔相对较小，使得即使井塌陷也可继续工作。切割齿增强了钻井液的湍流。在没有打开横切刀的情况下，使用钻井液润滑到预定压力的润滑器。在给定的预定量的压力之后，横向刀具垂直地打开。

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