Multi-zone fracturing completion
    1.
    发明授权
    Multi-zone fracturing completion 有权
    多区域压裂完成

    公开(公告)号:US08944167B2

    公开(公告)日:2015-02-03

    申请号:US13220502

    申请日:2011-08-29

    摘要: A wellbore completion is disclosed. The wellbore completion comprises a casing assembly comprising a plurality of casing lengths. At least one collar is positioned so as to couple the casing lengths. The at least one collar comprises a tubular body having an inner flow path and at least one fracture port configured to provide fluid communication between an outer surface of the collar and the inner flow path. A length of coiled tubing can be positioned in the casing assembly. The coiled tubing comprises an inner flow path, wherein an annulus is formed between the coiled tubing and the casing assembly. A bottom hole assembly is coupled to the coiled tubing. The bottom hole assembly comprises a fracturing aperture configured to provide fluid communication between the inner flow path of the coiled tubing and the annulus. A packer can be positioned to allow contact with the at least one collar when the packer is expanded. The packer is capable of isolating the annulus above the packer from the annulus below the packer so that fluid flowing down the coiled tubing can cause a pressure differential across the packer to thereby open the fracture port.

    摘要翻译: 公布了井筒完井。 井眼完井包括包括多个壳体长度的壳体组件。 定位至少一个套环以便联接套管长度。 所述至少一个轴环包括具有内部流动路径的管状主体和被配置为在所述轴环的外表面和所述内部流动路径之间提供流体连通的至少一个断裂端口。 连续油管的长度可以定位在套管组件中。 所述连续油管包括内部流动路径,其中在所述连续油管和所述壳体组件之间形成环形空间。 井底组件联接到连续油管。 底孔组件包括压缩孔,其被构造成在盘管的内部流动路径和环形空间之间提供流体连通。 当封隔器膨胀时,封隔器可以定位成允许与至少一个环的接触。 封隔器能够隔离封隔器上方的环形空间与封隔器下面的环形空间隔开,使得沿连续管道流下的流体可能导致封隔器两端的压力差,从而打开断裂端口。

    Multi-Zone Fracturing Completion
    2.
    发明申请
    Multi-Zone Fracturing Completion 有权
    多区域压裂完成

    公开(公告)号:US20120097398A1

    公开(公告)日:2012-04-26

    申请号:US13220502

    申请日:2011-08-29

    摘要: A wellbore completion is disclosed. The wellbore completion comprises a casing assembly comprising a plurality of casing lengths. At least one collar is positioned so as to couple the casing lengths. The at least one collar comprises a tubular body having an inner flow path and at least one fracture port configured to provide fluid communication between an outer surface of the collar and the inner flow path. A length of coiled tubing can be positioned in the casing assembly. The coiled tubing comprises an inner flow path, wherein an annulus is formed between the coiled tubing and the casing assembly. A bottom hole assembly is coupled to the coiled tubing. The bottom hole assembly comprises a fracturing aperture configured to provide fluid communication between the inner flow path of the coiled tubing and the annulus. A packer can be positioned to allow contact with the at least one collar when the packer is expanded. The packer is capable of isolating the annulus above the packer from the annulus below the packer so that fluid flowing down the coiled tubing can cause a pressure differential across the packer to thereby open the fracture port.

    摘要翻译: 公布了井筒完井。 井眼完井包括包括多个壳体长度的壳体组件。 定位至少一个套环以便联接套管长度。 所述至少一个轴环包括具有内部流动路径的管状主体和被配置为在所述轴环的外表面和所述内部流动路径之间提供流体连通的至少一个断裂端口。 连续油管的长度可以定位在套管组件中。 所述连续油管包括内部流动路径,其中在所述连续油管和所述壳体组件之间形成环形空间。 井底组件联接到连续油管。 底孔组件包括压缩孔,其被构造成在盘管的内部流动路径和环形空间之间提供流体连通。 当封隔器膨胀时,封隔器可以定位成允许与至少一个环的接触。 封隔器能够隔离封隔器上方的环形空间与封隔器下面的环形空间隔开,使得沿连续管道流下的流体可能导致封隔器两端的压力差,从而打开断裂端口。

    BOTTOM HOLE ASSEMBLY WITH PORTED COMPLETION AND METHODS OF FRACTURING THEREWITH
    3.
    发明申请
    BOTTOM HOLE ASSEMBLY WITH PORTED COMPLETION AND METHODS OF FRACTURING THEREWITH 有权
    具有完整性的底部孔组件及其破碎方法

    公开(公告)号:US20110174491A1

    公开(公告)日:2011-07-21

    申请号:US12842099

    申请日:2010-07-23

    IPC分类号: E21B43/26 F16L25/00

    摘要: A ported completion and method for use in fracturing multi-zone wells. A casing assembly having a plurality of casing lengths and one or more collars positioned so as to couple together the casing lengths. The collars may be a tubular body having an inner flow path, one or more fracture ports configured to provide fluid communication between an outer surface of the collar and the inner flow path, one or more valve holes intersecting the fracture ports, one or more valve vent holes positioned to provide fluid communication between the valve holes and the inner flow path, and one or more valves positioned in the valve holes for opening and closing the fracture ports. The valves are configured to open when a pressure differential is created between the fracture ports and the valve vent holes. The valve vent hole may be an annulus around the perimeter of the tubular body.

    摘要翻译: 用于压裂多区域井的完井和方法。 壳体组件,其具有多个壳体长度和一个或多个套环,其定位成将壳体长度连接在一起。 套环可以是具有内部流动路径的管状体,一个或多个断裂端口被配置为在套环的外表面和内部流动路径之间提供流体连通,与断裂端口相交的一个或多个阀孔,一个或多个阀 定位成提供阀孔和内部流动路径之间的流体连通的通气孔,以及定位在阀孔中的一个或多个阀,用于打开和关闭断裂端口。 这些阀被构造成在裂缝端口和阀通气孔之间产生压力差时打开。 阀通气孔可以是围绕管状体的周边的环。

    System and method for positioning a bottom hole assembly in a horizontal well
    4.
    发明授权
    System and method for positioning a bottom hole assembly in a horizontal well 有权
    将井底组件定位在水平井中的系统和方法

    公开(公告)号:US08955603B2

    公开(公告)日:2015-02-17

    申请号:US13030335

    申请日:2011-02-18

    摘要: A system of couplings and method of use of the couplings to locate a downhole tool connected to coiled tubing, such as a bottom hole assembly, within a selected segment of a casing string. The selected segment of casing may be a ported collar or ported housing that permits the treatment and/or stimulation of the adjacent well formation. The system of couplings may be two, three, or four couplings spaced apart at predetermined lengths. The predetermined lengths may be shorter than typical lengths of casing segments. The distance between the first and second coupling may be substantially identical to the distance between the third and fourth coupling. The use of distances between the couplings that are shorter than the length of conventional casing segments may provide surface indicators as to the location of the bottom hole assembly with a higher confidence than relying on a traditional tally sheet.

    摘要翻译: 一种联接器系统和联接器的使用方法,用于定位连接到套管柱的选定段内的诸如底部孔组件的连续油管的井下工具。 所选择的套管段可以是允许对相邻井地层进行处理和/或刺激的带状环或者移动的壳体。 联轴器系统可以是以预定长度间隔开的两个,三个或四个联轴器。 预定长度可以短于套管段的典型长度。 第一和第二联接器之间的距离可以与第三和第四联接器之间的距离基本上相同。 使用短于常规套管段长度的联接器之间的距离可以提供关于底孔组件的位置的表面指示器,其具有比依赖于传统的分页的更高的置信度。

    Dual purpose blow out preventer
    5.
    发明授权
    Dual purpose blow out preventer 有权
    双用途防喷器

    公开(公告)号:US07410003B2

    公开(公告)日:2008-08-12

    申请号:US11602511

    申请日:2006-11-20

    IPC分类号: E21B19/22 E21B33/06

    CPC分类号: E21B19/22 E21B33/06

    摘要: An improved dual purpose blow out preventer (“BOP”) that provides both deployment and wellhead pressure containment functions. The dual purpose BOP may include four sets of rams including a set of seal/slip rams that provide bi-directional sealing being a first barrier to downhole pressure. The seal/slip rams may also grip a portion of a bottom hole assembly and create the bottom seal of an annular chamber. The BOP may include a set of seal rams that create the top seal of the annular chamber. The annular chamber may be pressurized through a port in the BOP, which may actuate a coiled tubing connector. The BOP may include a set of locate rams used to position a coiled tubing connector within the BOP stack. The BOP may also include a set of blind/shear rams that provide bi-directional sealing being a second barrier to wellhead pressure.

    摘要翻译: 一种改进的双重防喷器(“BOP”),可提供部署和井口压力容纳功能。 双重目的的BOP可以包括四组公制,包括一组密封/滑动式公差,其提供双向密封,作为井下压力的第一阻挡层。 密封/滑动凸起也可以夹持底部孔组件的一部分并产生环形室的底部密封。 BOP可以包括一组产生环形室的顶部密封的密封塞。 环形室可以通过BOP中的端口加压,这可以致动连续油管连接器。 BOP可以包括一组用于将连续油管连接器定位在BOP堆叠内的定位杆。 BOP还可以包括提供双向密封作为井口压力的第二阻挡物的一组盲/剪切公差。

    Release tool for coiled tubing
    6.
    发明授权
    Release tool for coiled tubing 有权
    连续油管释放工具

    公开(公告)号:US07249633B2

    公开(公告)日:2007-07-31

    申请号:US10868058

    申请日:2004-06-15

    IPC分类号: E21B31/00

    摘要: A bottom hole assembly for use with fracturing or fracing a wellbore using coiled tubing is described having a first packing element and a second packing element on a mandrel. The bottom hole assembly may be run into the wellbore such that the packing elements straddle the zone to be fraced. Also described is a timing mechanism to prevent the closing of dump ports before the bottom hole assembly may be flushed of the sand. A release tool is described that allows an operator to apply combination of force for a given amount of time to the coiled tubing to dislodge a bottom hole assembly without completely releasing the bottom hole assembly. Also disclosed is a collar locator capable of being utilized in a fracing process. Methods of using the above-described components are also disclosed.

    摘要翻译: 描述了一种用于使用连续油管对井眼进行压裂或压边使用的井底组件,其具有在心轴上的第一填料元件和第二填料元件。 底孔组件可以进入井筒,使得填料元件跨越要被压边的区域。 还描述了一种定时机构,用于在底部孔组件可能被冲洗掉之前防止倾倒端口关闭。 描述了释放工具,其允许操作者将一定时间的力的组合施加到连续油管以移除底部孔组件而不完全释放底部孔组件。 还公开了能够在边缘过程中使用的衣领定位器。 还公开了使用上述组分的方法。

    Bottom hole assembly
    7.
    发明授权
    Bottom hole assembly 有权
    底孔装配

    公开(公告)号:US06832654B2

    公开(公告)日:2004-12-21

    申请号:US10186260

    申请日:2002-06-28

    IPC分类号: E21B4326

    摘要: A bottom hole assembly for use with fracturing or fracing a wellbore using coiled tubing is described having a first packing element and a second packing on a mandrel. The bottom hole assembly may be run into the wellbore such that the packing elements straddle the zone to be fraced. Also described is a timing mechanism to prevent the closing of dump ports before the bottom hole assembly may be flushed of the sand. A release tool is described that allows an operator to apply force to the coiled tubing to dislodge a bottom hole assembly without completely releasing the bottom hole assembly. Also disclosed is a collar locator capable of being utilized in a fracing process. Methods of using the above described components are also disclosed.

    摘要翻译: 描述了一种用于使用连续油管压裂或压缩井眼的井底组件,其具有在心轴上的第一填料元件和第二填料。 底孔组件可以进入井筒,使得填料元件跨越要被压边的区域。 还描述了一种定时机构,用于在底部孔组件可能被冲洗掉之前防止倾倒端口关闭。 描述了一种释放工具,其允许操作者对连续油管施加力以移除底部孔组件而不完全释放底部孔组件。 还公开了能够在边缘过程中使用的衣领定位器。 还公开了使用上述组分的方法。

    Multi-zone fracturing completion
    8.
    发明授权
    Multi-zone fracturing completion 有权
    多区域压裂完成

    公开(公告)号:US08695716B2

    公开(公告)日:2014-04-15

    申请号:US12971932

    申请日:2010-12-17

    IPC分类号: E21B23/00 E21B34/00

    摘要: A ported housing that may be connected along a casing string and the method for use of the ported housing in fracturing and/or treating multiple zones in a well. A sleeve is connected to the ported housing and may be moved between an initial position that prevents fluid flow through the ports of the housing and second position that permits fluid flow through the ports. A bottom hole assembly may be connected to the sleeve by an anchor. A packer element may create a seal between the bottom hole assembly and the sleeve permitting a pressure differential across the packer element to move bottom hole assembly down the casing moving the sleeve to the second position. In the second position, the formation adjacent to the ported housing may be stimulated and/or treated.

    摘要翻译: 可以沿着套管串连接的端口壳体以及用于在孔中压裂和/或处理多个区域中的移动壳体的方法。 套筒连接到移动的外壳,并且可以在防止流体流过壳体的端口的初始位置和允许流体流过端口的第二位置之间移动。 底孔组件可以通过锚固件与套筒连接。 封隔器元件可以在底孔组件和套筒之间形成密封,允许跨越封隔器元件的压力差以将底部孔组件向下移动以使套筒移动到第二位置。 在第二位置,可以刺激和/或处理邻近移动壳体的形成。

    Bottom hole assembly with ported completion and methods of fracturing therewith
    9.
    发明授权
    Bottom hole assembly with ported completion and methods of fracturing therewith 有权
    底孔装配及其压裂方法

    公开(公告)号:US08613321B2

    公开(公告)日:2013-12-24

    申请号:US12842099

    申请日:2010-07-23

    IPC分类号: E21B43/26 E21B33/12 E21B28/00

    摘要: A ported completion and method for use in fracturing multi-zone wells. A casing assembly having a plurality of casing lengths and one or more collars positioned so as to couple together the casing lengths. The collars may be a tubular body having an inner flow path, one or more fracture ports configured to provide fluid communication between an outer surface of the collar and the inner flow path, one or more valve holes intersecting the fracture ports, one or more valve vent holes positioned to provide fluid communication between the valve holes and the inner flow path, and one or more valves positioned in the valve holes for opening and closing the fracture ports. The valves are configured to open when a pressure differential is created between the fracture ports and the valve vent holes. The valve vent hole may be an annulus around the perimeter of the tubular body.

    摘要翻译: 用于压裂多区域井的完井和方法。 壳体组件,其具有多个壳体长度和一个或多个套环,其定位成将壳体长度连接在一起。 套环可以是具有内部流动路径的管状体,一个或多个断裂端口被配置为在套环的外表面和内部流动路径之间提供流体连通,与断裂端口相交的一个或多个阀孔,一个或多个阀 定位成提供阀孔和内部流动路径之间的流体连通的通气孔,以及定位在阀孔中的一个或多个阀,用于打开和关闭断裂端口。 这些阀被构造成在裂缝端口和阀通气孔之间产生压力差时打开。 阀通气孔可以是围绕管状体的周边的环。

    Downhole Isolation and Depressurization Tool
    10.
    发明申请
    Downhole Isolation and Depressurization Tool 有权
    井下隔离和减压工具

    公开(公告)号:US20130248181A1

    公开(公告)日:2013-09-26

    申请号:US13709908

    申请日:2012-12-10

    IPC分类号: E21B34/06

    摘要: A depressurization tool is described for use downhole in depressurizing an isolated zone. A decompression chamber containing a compressible fluid volume is described. The opening of the chamber is sealed with a closure that is configured to open upon application of a pressure differential across the opening. When used downhole within an isolated and nonpermeable wellbore zone, excessive ambient pressure will cause the closure to open and allow the chamber to fill with fluid at increased pressure, depressurizing the wellbore zone. The tool is useful in wellbore completion systems that include sliding sleeves.

    摘要翻译: 描述了一种减压工具,用于在隔离区域减压时在井下使用。 描述了包含可压缩流体体积的减压室。 腔室的开口用封闭件密封,该封闭件构造成在通过开口施加压力差时打开。 当在隔离和不透气的井眼区域内使用井下时,过高的环境压力将导致封闭物打开,并允许室以增加的压力填充流体,使井眼区域减压。 该工具在包括滑动套筒的井眼完井系统中非常有用。