Perforating apparatus and method having internal load path

    公开(公告)号:US10337299B2

    公开(公告)日:2019-07-02

    申请号:US14367332

    申请日:2012-03-02

    IPC分类号: E21B43/117 E21B43/119

    摘要: A perforating apparatus for a gun string is presented. The apparatus experiences an axial load and potentially a radial load during use. A central charge-carrier supports shaped-charges and substantially bears the axial load on the apparatus during use. The charge-carrier is positioned within an exterior sleeve and the plurality of shaped-charges, upon detonation, perforate the exterior sleeve. The exterior sleeve does not bear a substantial portion of the axial load on the apparatus and can therefore be thinner and cheaper than in prior art assemblies. An annular space can be defined between the charge-carrier and exterior sleeve. The exterior tubular can bear the radial load due to differential pressure in one embodiment. Alternately, the apparatus includes radial support members extending between the charge-carrier and sleeve for transmitting radial load to the charge-carrier. Alternately, the sleeve and charge-carrier abut one another along a substantial portion of the length of the charge-carrier.

    Shock load mitigation in a downhole perforation tool assembly
    2.
    发明授权
    Shock load mitigation in a downhole perforation tool assembly 有权
    在井下穿孔工具组件中减轻冲击负荷

    公开(公告)号:US08881816B2

    公开(公告)日:2014-11-11

    申请号:US13377148

    申请日:2011-04-29

    IPC分类号: E21B29/00

    摘要: A perforation tool assembly is provided. The perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to reduce the speed of propagation of a detonation in a direction parallel to the axis of the perforation tool assembly. The first perforation gun comprises a plurality of explosive charges coupled to a first portion of the energy train. The second perforation gun comprises a plurality of explosive charges coupled to a second portion of the energy train, wherein the second portion of the energy train is coupled to the first portion of the energy train.

    摘要翻译: 提供穿孔工具组件。 穿孔工具组件包括能量列,第一穿孔枪和第二穿孔枪。 能量列包括调节器,以减小在与穿孔工具组件的轴线平行的方向上的爆炸的传播速度。 第一穿孔枪包括耦合到能量列的第一部分的多个炸药。 第二穿孔枪包括耦合到能量列的第二部分的多个炸药,其中能量列的第二部分联接到能量列的第一部分。

    SHOCK ATTENUATOR FOR GUN SYSTEM
    3.
    发明申请
    SHOCK ATTENUATOR FOR GUN SYSTEM 有权
    防震系统的防震装置

    公开(公告)号:US20140262271A1

    公开(公告)日:2014-09-18

    申请号:US13820748

    申请日:2012-04-03

    IPC分类号: E21B29/02

    摘要: A perforation gun string. The perforation gun string comprises a perforation gun that forms at least part of the perforation gun string; and a swellable material coupled to the perforation gun string. The swellable material is configured to be exposed to a downhole wellbore environment; the swellable material is configured to swell in response to exposure to the downhole wellbore environment; and the swellable material is configured to protrude beyond an outer surface of the perforation gun string when it swells.

    摘要翻译: 穿孔枪串。 穿孔枪串包括形成穿孔枪串的至少一部分的穿孔枪; 以及耦合到穿孔枪串的可溶胀材料。 可膨胀材料被配置为暴露于井下井眼环境; 可膨胀材料被配置为响应于暴露于井下井眼环境而膨胀; 并且可膨胀材料被构造成当其膨胀时突出超过穿孔枪串的外表面。

    Managing pressurized fluid in a downhole tool

    公开(公告)号:US08381822B2

    公开(公告)日:2013-02-26

    申请号:US12617447

    申请日:2009-11-12

    IPC分类号: E21B43/119

    CPC分类号: E21B43/1195

    摘要: A wellbore apparatus includes a connector sub assembly having a body, the body having a first end adapted to couple to a first perforating sub component and a second, axially opposed end adapted to couple to a second perforating sub component. The connector sub body defines a cavity proximate the second end of the connector sub body; and a flow path in fluid communication with the cavity and a location exterior to the wellbore apparatus. The apparatus includes a valve residing in the flow path and actuatable to block or allow fluid flow from the cavity, through the flow path, to the location exterior to the wellbore apparatus.

    Shock Load Mitigation in a Downhole Perforation Tool Assembly
    5.
    发明申请
    Shock Load Mitigation in a Downhole Perforation Tool Assembly 有权
    井下穿孔工具组件的减震作用

    公开(公告)号:US20120273201A1

    公开(公告)日:2012-11-01

    申请号:US13377148

    申请日:2011-04-29

    IPC分类号: E21B43/11

    摘要: A perforation tool assembly is provided. The perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to reduce the speed of propagation of a detonation in a direction parallel to the axis of the perforation tool assembly. The first perforation gun comprises a plurality of explosive charges coupled to a first portion of the energy train. The second perforation gun comprises a plurality of explosive charges coupled to a second portion of the energy train, wherein the second portion of the energy train is coupled to the first portion of the energy train.

    摘要翻译: 提供穿孔工具组件。 穿孔工具组件包括能量列,第一穿孔枪和第二穿孔枪。 能量列包括调节器,以减小在与穿孔工具组件的轴线平行的方向上的爆炸的传播速度。 第一穿孔枪包括耦合到能量列的第一部分的多个炸药。 第二穿孔枪包括耦合到能量列的第二部分的多个炸药,其中能量列的第二部分联接到能量列的第一部分。

    WELL TOOL ASSEMBLIES WITH QUICK CONNECTORS AND SHOCK MITIGATING CAPABILITIES

    公开(公告)号:US20120241169A1

    公开(公告)日:2012-09-27

    申请号:US13413588

    申请日:2012-03-06

    IPC分类号: E21B23/00 E21B43/11

    摘要: A method can include interconnecting a well tool in a well tool assembly with a shock mitigating connection, the interconnecting being performed without threading, and positioning the well tool assembly in a wellbore. A well perforating assembly can include at least two perforating devices, a detonation train extending through the perforating devices, and a shock absorber positioned between the perforating devices. A method of assembling a perforating assembly can include, prior to installing the perforating assembly in a wellbore, pushing one perforating device connector into another perforating device connector without threading the connectors together, thereby: a) preventing disconnection of the connectors and b) making a connection in a detonation train. A well system can include a perforating assembly including multiple perforating guns and multiple shock absorbers. Each shock absorber may be interconnected between at least two of the perforating guns.

    OPTIMIZING WELLBORE PERFORATIONS USING UNDERBALANCE PULSATIONS
    7.
    发明申请
    OPTIMIZING WELLBORE PERFORATIONS USING UNDERBALANCE PULSATIONS 有权
    使用不平衡脉冲优化井眼执行

    公开(公告)号:US20110174487A1

    公开(公告)日:2011-07-21

    申请号:US12690433

    申请日:2010-01-20

    IPC分类号: E21B43/11

    CPC分类号: E21B43/1195

    摘要: A perforating system and method for use in a wellbore. In operation, the perforating system is disposed in the wellbore and used to form perforations in the wellbore. Thereafter, the perforating system is used to perform a sequence of underbalance pulsations in the wellbore, wherein a first underbalance pulsation has a first underbalance signature and a second underbalance pulsation has a second underbalance signature that is different from the first underbalance signature such that perforating tunnel clean up can be optimized based upon wellbore conditions and without causing damage to the perforating tunnels.

    摘要翻译: 用于井眼的穿孔系统和方法。 在操作中,穿孔系统设置在井眼中并用于在井眼中形成穿孔。 此后,穿孔系统用于执行井眼中的不平衡脉动序列,其中第一不平衡脉动具有第一不平衡特征,而第二不平衡脉动具有与第一不平衡特征不同的第二不平衡特征,使得穿孔隧道 清理可以基于井眼条件进行优化,并且不会对穿孔隧道造成损害。

    System and Method for Dynamically Adjusting the Center of Gravity of a Perforating Apparatus
    8.
    发明申请
    System and Method for Dynamically Adjusting the Center of Gravity of a Perforating Apparatus 有权
    用于动态调节穿孔装置重心的系统和方法

    公开(公告)号:US20110100627A1

    公开(公告)日:2011-05-05

    申请号:US12985796

    申请日:2011-01-06

    IPC分类号: E21B43/11 E21B43/117

    CPC分类号: E21B43/119

    摘要: A perforating apparatus (170) used to perforate a subterranean well. The perforating apparatus (170) includes a generally tubular gun carrier (106) and a charge holder (172) rotatably mounted within the gun carrier (106). At least one shaped charge (102) is mounted in the charge holder (172) and is operable to perforate the well upon detonation. A dynamically adjustable weight system (174) is operably associated to the charge holder (172). The dynamically adjustable weight system (174) includes a plurality of longitudinally extending tubes (176) that are operable to contain a weighted material therein and are operable to adjust the center of gravity (120) of the charge holder (172) such that gravity will cause the charge holder (172) to rotate within the gun carrier (106) to position the at least one shaped charge (102) in a desired circumferential direction relative to the well prior to perforating.

    摘要翻译: 用于穿孔地下井的穿孔装置(170)。 穿孔装置(170)包括大致管状的枪支架(106)和可旋转地安装在枪支架(106)内的充电保持器(172)。 至少一个成形电荷(102)安装在电荷保持器(172)中,并且可操作以在引爆时使孔穿孔。 动态可调节的重量系统(174)可操作地与电荷保持器(172)相关联。 动态可调整的重量系统(174)包括多个纵向延伸的管(176),其可操作以在其中容纳加权材料,并且可操作以调节电荷保持器(172)的重心(120),使得重力将 使得电荷保持器(172)在枪支架(106)内旋转,以便在穿孔之前将至少一个成形电荷(102)相对于孔定位在期望的圆周方向。

    System and Method for Dynamically Adjusting the Center of Gravity of a Perforating Apparatus
    9.
    发明申请
    System and Method for Dynamically Adjusting the Center of Gravity of a Perforating Apparatus 有权
    用于动态调节穿孔装置重心的系统和方法

    公开(公告)号:US20110094744A1

    公开(公告)日:2011-04-28

    申请号:US12985916

    申请日:2011-01-06

    IPC分类号: E21B43/11 E21B43/117

    CPC分类号: E21B43/119

    摘要: A perforating apparatus (240) used to perforate a subterranean well. The perforating apparatus (240) includes a generally tubular gun carrier (106) and a charge holder (242) rotatably mounted within the gun carrier (106). At least one shaped charge (246) is mounted in the charge holder (242) and is operable to perforate the well upon detonation. A dynamically adjustable weight system including a weight tube (250) that is selectively rotatable relative to the charge holder (242) is operable to adjust the center of gravity (120) of the charge holder (242) such that gravity will cause the charge holder (242) to rotate within the gun carrier (106) to position the at least one shaped charge (246) in a desired circumferential direction relative to the well prior to perforating.

    摘要翻译: 用于穿孔地下井的射孔装置(240)。 穿孔装置(240)包括大致管状的枪支架(106)和可旋转地安装在枪支架(106)内的电荷保持器(242)。 至少一个成形电荷(246)安装在电荷保持器(242)中,并且可操作以在爆炸时对孔进行穿孔。 一种动态可调整的重量系统,其包括可相对于电荷保持器(242)选择性地旋转的配重管(250),其可操作以调节电荷保持器(242)的重心(120),使得重力将导致电荷保持器 (242)在枪支架(106)内旋转以在穿孔之前相对于井将所述至少一个成形装料(246)定位在期望的圆周方向上。

    Perforating Apparatus for Enhanced Performance in High Pressure Wellbores
    10.
    发明申请
    Perforating Apparatus for Enhanced Performance in High Pressure Wellbores 审中-公开
    用于提高高压井筒性能的穿孔装置

    公开(公告)号:US20100300750A1

    公开(公告)日:2010-12-02

    申请号:US12473569

    申请日:2009-05-28

    IPC分类号: E21B43/117 E21B43/116

    CPC分类号: E21B43/117

    摘要: A perforating apparatus (50) includes a carrier gun body (52) having a plurality of radially reduced sections (54). The radially reduced sections (54) have a nanocomposite outer layer (72). A charge holder (62) is positioned within the carrier gun body (52). A plurality of shaped charges (56) are supported by the charge holder (62). The shaped charges (56) each have an initiation end and a discharge end. The discharge ends of the shaped charges (56) are disposed proximate the radially reduced sections (54) of the carrier gun body (52) such that the jets formed upon detonation of the shaped charges (56) travel through the radially reduced sections (54). The nanocomposite outer layers (72) of the radially reduced sections (54) enable enhanced performance of the perforating apparatus (50) in high pressure and high temperature wellbores.

    摘要翻译: 穿孔装置(50)包括具有多个径向减小部分(54)的载体枪体(52)。 径向减小的部分(54)具有纳米复合材料外层(72)。 电荷保持器(62)位于载体枪体(52)内。 多个成形电荷(56)由电荷保持器(62)支撑。 成型电荷(56)各自具有起始端和放电端。 成形电荷(56)的放电端设置在载体枪体(52)的径向减小部分(54)附近,使得在成形电荷(56)爆炸时形成的射流行进通过径向减小的部分(54) )。 径向减小部分(54)的纳米复合材料外层(72)能够在高压和高温井筒中提高射孔装置(50)的性能。