公开(公告)号：US4576236A

公开(公告)日：1986-03-18

申请号：US608900

申请日：1984-05-10

申请人： Gregg W. Stout ,  John A. Nelson ,  John H. Crisp

发明人： Gregg W. Stout ,  John A. Nelson ,  John H. Crisp

IPC分类号： E21B23/02 ,  E21B33/12 ,  E21B43/116

CPC分类号： E21B33/12 ,  E21B23/02 ,  E21B43/116

摘要： A method and apparatus for effecting the sealing of a well conduit comprises the positioning of a sealing plug unit within a special nipple provided in the well conduit and defining first and second surfaces and a seal bore. The sealing plug unit is provided with external seal elements cooperable with the seal bore and a first and second latching elements respectively cooperable with the first and second surfaces provided on the nipple. The sealing plug is actuated by first passing it downwardly through the nipple and then retracting it upwardly, whereupon the first of the latching elements engages with one of the surfaces on the nipple, thus preventing further upward movement on the assembly and permitting the application of a tensile force to release the plugging unit from the remainder of the unit to bring a camming sleeve into engagement with the second latching element to cam such element outwardly into engagement with an upper recess of the nipple. The sealing plug unit may be removed from the nipple through the application of applied force which effects the release of the camming sleeve holding latch elements in their locked position, thus permitting the sealing plug unit to be forced through the special nipple and discarded into the bottom of the well.

摘要翻译： 用于实现井管道密封的方法和装置包括将密封塞单元定位在设置在井管道中的特殊接头中并限定第一和第二表面以及密封孔。 密封塞单元设置有与密封孔配合的外部密封元件和分别与设置在乳头上的第一和第二表面配合的第一和第二闩锁元件。 首先将密封塞向下通过乳头，然后向上缩回密封塞，由此第一个闩锁元件与乳头上的一个表面接合，从而防止组件上的进一步的向上移动并允许施加一个 张紧力以将堵塞单元从单元的其余部分释放，以使凸轮套与第二闭锁元件接合，从而将该元件向外凸出以与乳头的上凹部接合。 密封塞单元可以通过施加施加的力而从乳头上移除，其施加凸轮套筒将闩锁元件释放在其锁定位置，从而允许密封塞单元被迫通过特殊的接头并被丢弃到底部 的井。

公开(公告)号：US4817718A

公开(公告)日：1989-04-04

申请号：US94275

申请日：1987-09-08

申请人： John A. Nelson ,  Gregg W. Stout

发明人： John A. Nelson ,  Gregg W. Stout

IPC分类号： E21B34/10 ,  E21B34/12 ,  E21B43/116 ,  E21B43/1185 ,  E21B49/08 ,  E21B43/112

CPC分类号： E21B49/087 ,  E21B34/10 ,  E21B34/12 ,  E21B43/116 ,  E21B43/11852

摘要： A separable fluid pressure activated firing mechanism for a perforating gun comprises a pressure-operated tubing valve, a packer, and a tubular housing assembly defining a plurality of fluid pressure chambers therein. The first chamber contains a light density, clean, compressible fluid which is subject to well annulus pressure above the packer to provide a reference pressure. A second chamber sealably mounts a piston-type firing pin, which is normally secured by a locked latch in an elevated position above a detonatable primer and the lower portion of said firing pin is exposed to the reference pressure. The latch is unlocked through the application of a predetermined annulus pressure above the packer to a locking piston which moves to unlock the latch and trap the reference pressure in the first chamber. A further increase in said annulus pressure opens the tubing valve. A still further increase in said annulus pressure releases the firing pin from the latch and drives the firing pin downwardly to detonate the primer. Additional features of the disclosure are the provision of a crossover tool between the packer and the tubular housing assembly to permit underbalance perforating, the provision of a detachable connection between the cross-over tool and the packer, and the provision of a shiftable sleeve valve effecting the closing of a connection from the packer bore to the annulus upon disconnection of the packer from the cross-over tool.

摘要翻译： 用于射孔枪的可分离的流体压力激活的击发机构包括压力操作的管道阀，封隔器和在其中限定多个流体压力室的管状壳体组件。 第一个室包含一个光密度，清洁，可压缩的流体，其在封隔器之上承受良好的环空压力以提供参考压力。 第二腔室密封地安装活塞式击发销，其通常由锁定的闩锁固定在可引爆底漆上方的升高位置，并且所述撞针的下部暴露于参考压力。 通过在封隔器上方施加预定的环空压力将闩锁解锁，以锁定活塞，锁定活塞移动以解锁闩锁并捕获第一腔室中的参考压力。 所述环形压力的进一步增加打开管道阀。 所述环形空间压力的进一步增加将击发销从闩锁释放，并向下驱动击发销以引爆底漆。 本公开的另外的特征是在封隔器和管状壳体组件之间提供交叉工具，以允许欠平衡穿孔，在交叉工具和封隔器之间提供可拆卸的连接，以及提供可移动的套筒阀 当打包机与交叉工具断开连接时，从封隔器孔连接到环形空间。

公开(公告)号：US4610312A

公开(公告)日：1986-09-09

申请号：US743044

申请日：1985-06-10

申请人： John A. Nelson ,  Gregg W. Stout

发明人： John A. Nelson ,  Gregg W. Stout

IPC分类号： E21B43/116 ,  E21B43/1185 ,  E21B43/11

CPC分类号： E21B43/11855 ,  E21B43/116 ,  E21B43/11852

摘要： A redundant firing mechanism for a perforating gun utilized in subterranean wells comprises a hollow housing assembly incorporating two spaced primer charges disposed in vertically spaced relationship. A fluid pressure chamber is defined within the hollow housing assembly and is closed at the top end of the assembly by a frangible barrier disc. A fluid pressure actuated hammer is provided to impact upon the lowermost one of the primers in response to fluid pressure developed in the fluid pressure chamber. In the event that the lowermost primer does not detonate, a detonating bar may then be dropped through the tubing string to break the frangible barrier and impact upon a second hammer disposed in overlying relationship to the second primer.

摘要翻译： 用于在地下井中使用的穿孔枪的冗余击发机构包括一个中空的外壳组件，其中包含以垂直间隔的关系设置的两个间隔开的引物。 流体压力室限定在中空壳体组件内，并且通过易碎的阻挡盘在组件的顶端处封闭。 提供流体压力致动锤，以响应于在流体压力室中产生的流体压力而撞击底部的最下面的一个。 在最下面的底漆不起爆的情况下，引爆杆然后可以通过管柱被落下，以破坏易碎的屏障并撞击以与第二底漆相重叠的方式设置的第二锤。

公开(公告)号：US4479556A

公开(公告)日：1984-10-30

申请号：US432481

申请日：1982-10-04

申请人： Gregg W. Stout ,  John A. Nelson

发明人： Gregg W. Stout ,  John A. Nelson

IPC分类号： E21B43/117 ,  F42D1/02 ,  E21B43/11

CPC分类号： F42D1/02 ,  E21B43/117

摘要： The invention provides a subterranean well casing perforating gun device which employs shaped explosive charges to perforate the well casing. The device generally defines an outer tubular housing assembly concentrically insertable in the well and defining a vertical axis, cylindrical chamber. A tubular carrier of polygonal cross sectional configuration is insertable in the chamber in concentric relationship to the cylindrical wall of the cylindrical chamber. Each of the faces of the carrier have a plurality of spaced passages therethrough, each passage having a configuration substantially corresponding to the configuration of the polygonal face. A shaped charge container has its cylindrical body insertable in any selected one of the passages and a radial flange on the outer end for abutting the polygonal face portion adjacent the respective passage, thereby limiting the insertion of each of the containers into the selected passage. Selectively disengageable fastening means are operable from the exterior of the carrier for clamping the radial flange against the respective polygonal face and for selective disengagement therefrom from the exterior of the carrier. The invention also contemplates a method of utilization of the carrier and the gun, as well as to incorporation of same into a particular perforating and gravel packing method and apparatus.

摘要翻译： 本发明提供了一种地下井套管射孔枪装置，其采用成形炸药装置来穿孔井套管。 该装置通常限定外部管状壳体组件，其可同心地插入井中并限定垂直轴线，圆柱形腔室。 多边形横截面构造的管状载体可以与圆柱形腔室的圆柱形壁同心地插入腔室中。 载体的每个表面具有穿过其中的多个间隔通道，每个通道具有基本上对应于多边形面的构造的构造。 成形的充电容器具有可插入任何选定的通道中的圆柱形主体和外端上的径向凸缘，用于抵靠邻近相应通道的多边形面部分，从而限制每个容器插入到所选通道中。 选择性地脱离紧固装置可从载体的外部操作，以将径向凸缘夹紧在相应的多边形表面上，并且用于从载体的外部选择性地脱离。 本发明还考虑了使用载体和枪的方法，以及将其结合到特定的穿孔和砾石包装方法和装置中。

公开(公告)号：US4880056A

公开(公告)日：1989-11-14

申请号：US217703

申请日：1988-07-11

申请人： John A. Nelson ,  Gregg W. Stout

发明人： John A. Nelson ,  Gregg W. Stout

IPC分类号： E21B34/10 ,  E21B34/12 ,  E21B43/116 ,  E21B43/1185 ,  E21B49/08

CPC分类号： E21B43/11852 ,  E21B34/10 ,  E21B34/12 ,  E21B43/116

摘要： A separable fluid pressure activated firing mehanism for a perforating gun comprises a pressure-operated tubing valve, a packer, and a tubular housing assembly defining a plurality of fluid pressure chambers therein. The first chamber contains a light density, clean, compressible fluid which is subject to well annulus pressure above the packer to provide a reference pressure. A second chamber sealably mounts a piston-type firing pin, which is normally secured by a locked latch in an elevated position above a detonatable primer and the lower portion of said firing pin is exposed to the reference pressure. The latch is unlocked through the application of a predetermined annulus pressure above the packer to a locking piston which moves to unlock the latch and trap the reference pressure in the first chamber. A further increase in said annulus pressure opens the tubing valve. A still further increase in said annulus pressure releases the firing pin from the latch and drives the firing pin downwardly to detonate the primer. Additional features of the disclosure are the provision of a cross-over tool between the packer and the tubular housing assembly to permit underbalance perforating, the provision of a detachable connection between the cross-over tool and the packer, and the provision of a shiftable sleeve valve effecting the closing of a connection from the packer bore to the annulus upon disconnection of the packer from the cross-over tool.

摘要翻译： 用于射孔枪的可分离的流体压力激发的火焰装置包括压力操作的管道阀，封隔器和在其中限定多个流体压力室的管状壳体组件。 第一个室包含一个光密度，清洁，可压缩的流体，其在封隔器之上承受良好的环空压力以提供参考压力。 第二腔室密封地安装活塞式击发销，其通常由锁定的闩锁固定在可引爆底漆上方的升高位置，并且所述撞针的下部暴露于参考压力。 通过在封隔器上方施加预定的环空压力将闩锁解锁，以锁定活塞，锁定活塞移动以解锁闩锁并捕获第一腔室中的参考压力。 所述环形压力的进一步增加打开管道阀。 所述环形空间压力的进一步增加将击发销从闩锁释放，并向下驱动击发销以引爆底漆。 本公开的另外的特征是在封隔器和管状壳体组件之间提供交叉工具以允许欠平衡穿孔，在交叉工具和封隔器之间提供可拆卸连接，以及提供可移动套筒 当封隔器与交叉工具断开连接时，阀门将影响从封隔器孔到环形空间的连接。

公开(公告)号：US4543700A

公开(公告)日：1985-10-01

申请号：US599791

申请日：1984-04-13

申请人： Gregg W. Stout ,  John A. Nelson

发明人： Gregg W. Stout ,  John A. Nelson

IPC分类号： E21B43/117 ,  F42D1/02 ,  B23P19/00

CPC分类号： E21B43/117 ,  F42D1/02 ,  Y10T29/49821 ,  Y10T29/4992 ,  Y10T29/49954 ,  Y10T29/49963 ,  Y10T29/49972 ,  Y10T403/4628 ,  Y10T403/4662 ,  Y10T403/4674

摘要： The invention provides a subterranean well casing perforating gun device which employs shaped explosive charges to perforate the well casing. The device generally defines an outer tubular housing assembly concentrically insertable in the well and defining a vertical axis, cylindrical chamber. A tubular carrier of polygonal cross sectional configuration is insertable in the chamber in concentric relationship to the cylindrical wall of the cylindrical chamber. Each of the faces of the carrier have a plurality of spaced passages therethrough, each passage having a configuration substantially corresponding to the configuration of the polygonal face. A shaped charge container has its cylindrical body insertable in any selected one of the passages and a radial flange on the outer end for abutting the polygonal face portion adjacent the respective passage, thereby limiting the insertion of each of the containers into the selected passage. Selectively disengageable fastening means are operable from the exterior of the carrier for clamping the radial flange against the respective polygonal face and for selective disengagement therefrom from the exterior of the carrier. The invention also contemplates a method of utilization of the carrier and the gun, as well as to incorporation of same into a particular perforating and gravel packing method and apparatus.

摘要翻译： 本发明提供了一种地下井套管射孔枪装置，其采用成形炸药装置来穿孔井套管。 该装置通常限定外部管状壳体组件，其可同心地插入井中并限定垂直轴线，圆柱形腔室。 多边形横截面构造的管状载体可以与圆柱形腔室的圆柱形壁同心地插入腔室中。 载体的每个表面具有穿过其中的多个间隔通道，每个通道具有基本上对应于多边形面的构造的构造。 成形的充电容器具有可插入任何选定的通道中的圆柱形主体和外端上的径向凸缘，用于抵靠邻近相应通道的多边形面部分，从而限制每个容器插入到所选通道中。 选择性地脱离紧固装置可从载体的外部操作，以将径向凸缘夹紧在相应的多边形表面上，并且用于从载体的外部选择性地脱离。 本发明还考虑了使用载体和枪的方法，以及将其结合到特定的穿孔和砾石包装方法和装置中。

公开(公告)号：US20100139911A1

公开(公告)日：2010-06-10

申请号：US12653155

申请日：2009-12-09

申请人： Gregg W. Stout

发明人： Gregg W. Stout

IPC分类号： E21B33/12

CPC分类号： E21B33/128 ,  E21B17/026 ,  E21B33/1216 ,  E21B33/129

摘要： A subterranean well tool is provided for sealing along a section of a wall of the well and is carried on a conduit into the well. The tool is designed to be comparatively short in length to afford easier mill or drill out subsequent to the tool's useful need in the well. A plurality of anchoring elements and seal means are provided for respective anchoring and sealing engagement along the wall of the well in concert and substantially concurrently with one another when the tool is shifted to the set position. The anchoring means are sandwiched in between first and second, or upper and lower, sets of seal means.

摘要翻译： 提供地下井工具用于沿着井的壁的一部分进行密封，并将其运送到井的导管中。 该工具的设计长度相对较短，以便在工具在井中有用的需要之后轻松铣削或钻出。 提供多个锚定元件和密封装置，用于当工具移动到设定位置时沿着井的壁相互协调地并且基本上同时地相应地锚固和密封接合。 锚定装置被夹在第一和第二或上下组密封装置之间。

公开(公告)号：US4658900A

公开(公告)日：1987-04-21

申请号：US742096

申请日：1985-06-06

申请人： Gregg W. Stout

发明人： Gregg W. Stout

IPC分类号： E21B43/1185 ,  F42C19/09 ,  F42D1/04

CPC分类号： F42C19/09 ,  E21B43/11855 ,  F42D1/04

摘要： A high energy firing mechanism for a well perforating gun comprises a downwardly directed shaped charge which is discharged by an impact detonatable primer. The explosive jet developed by the downwardly directed shaped charge impinges upon a booster charge which in turn is connected to a primer cord leading to the shaped charges of a perforating gun. Sufficient detonating energy is produced to assure high energy detonation of the booster charge and primer cord, even though such elements may be formed from a thermal resistant explosive.

摘要翻译： 用于良好射孔枪的高能量击发机构包括向下定向的成形装料，其通过冲击可爆炸的底漆排出。 由向下定向的成形装置展开的爆炸性喷射器撞击增压装置，该增压装置又连接到通向穿孔枪的成形装置的底漆帘线。 产生足够的引爆能量以确保增压器充电和底漆帘线的高能量爆炸，即使这些元件可以由耐热炸药形成。

公开(公告)号：US4657089A

公开(公告)日：1987-04-14

申请号：US743580

申请日：1985-06-11

申请人： Gregg W. Stout

发明人： Gregg W. Stout

IPC分类号： E21B43/117 ,  E21B43/1185 ,  F42B3/192 ,  F42D1/04 ,  E21B43/116

CPC分类号： E21B43/117 ,  E21B43/1185 ,  F42B3/192 ,  F42D1/04

摘要： A method and apparatus for effecting the firing of a perforating gun having a plurality of vertically spaced, shaped charges wherein the firing is accomplished from the lowermost shaped charge to the uppermost shaped charge. In one modification, the detonation of the shaped charges is accomplished by a primer cord extending through all the gun sections, which is detonated only by a booster charge located in the bottom portion of the perforating gun housing. The booster charge is in fluid communication with the interior of the housing and, upon the occurrence of leakage of well fluids into the housing, the booster charge is rendered ineffective, thus preventing the firing of the perforating gun when the lower portion of the gun is filled with well fluids. In another modification, a conventional primer cord with booster charges on each end is inserted in each gun section, as is a length of flame-transmitting tubing. A flame is conveyed by such tubing from the top of the gun to the bottom to ignite a booster charge which causes the detonation of the primer cord in the bottom section, which detonation moves upwardly through all the gun sections.

摘要翻译： 一种用于实现具有多个垂直间隔的成形电荷的射孔枪的点火的方法和装置，其中从最下形成的电荷到最上形的电荷完成点火。 在一个变型中，成形电荷的引爆通过延伸穿过所有枪部分的底漆帘线实现，该引导线仅由位于射孔枪壳体的底部中的增压器引爆。 增压装置与壳体的内部流体连通，并且在井流体泄漏到外壳中时，增压装置无效，因此当枪的下部为 充满液体。 在另一个改进方案中，在每个喷枪部分中插入有在每个端部具有增压器电荷的常规底漆帘线，以及一定长度的阻燃管。 火焰通过这种管道从枪的顶部输送到底部以点燃增压装料，这引起底部部分的底漆帘线的爆震，该爆震向上穿过所有枪部。

公开(公告)号：US4543703A

公开(公告)日：1985-10-01

申请号：US366267

申请日：1982-04-07

申请人： Rodney J. Wetzel ,  Gregg W. Stout

发明人： Rodney J. Wetzel ,  Gregg W. Stout

IPC分类号： E21B43/04 ,  E21B43/116 ,  E21B43/117 ,  B21D39/00

CPC分类号： E21B43/117 ,  E21B43/045 ,  E21B43/116 ,  Y10T29/49876 ,  Y10T29/49879

摘要： A method and apparatus effecting the perforating of a well casing and the gravel packing of the perforated areas of the well casing of a combined perforating and gravel packing apparatus. This desirable objective is accomplished by a perforating gun construction permitting complete flexiblility to adjust in the field the number of horizontally and veritcally spaced shaped charges through the provision of a polygonal carrier having vertically spaced holes provided in each of its planar sides to accommodate vertically spaced horizontal groups of shaped charges with the charges in one horizontal group being angularly displaced relative to the charges in a vertically adjacent horizontal group. Additionally, the crossover mandrel employed in the gravel packing operation provides, in its run-in position, a continuous axial passage through its entire length, permitting a detonating device to be placed therethrough to actuate the perforating gun. Subsequent to the perforating operation, a ball is dropped and seated on an annular sleeve carried within the hollow mandrel which permits the development of internal pressure within the mandrel. Such internal pressure is employed not only to effect the setting of a fluid pressure actuated packer but also to shift the ball supporting sleeve downwardly and uncover a crossover port in the mandrel which permits the gravel packing operation to be carried out conventionally.

摘要翻译： 一种方法和装置，其用于对组合的穿孔和砾石包装装置的井套管穿孔区域的井套管和砾石填料进行穿孔。 这种理想的目标是通过穿孔枪结构实现的，其允许完全的柔韧性通过设置在其每个平面侧中设置有垂直间隔开的孔的多边形载体在现场调节水平和真实间隔成形的电荷的数量，以容纳垂直间隔的水平 一组成形电荷，一个水平组中的电荷相对于垂直相邻水平组中的电荷有角度位移。 此外，在砾石填充操作中使用的交叉心轴在其运行位置中提供连续的轴向通过其整个长度，允许引爆装置穿过其中以致动射孔枪。 在穿孔操作之后，球落下并放置在承载在空心心轴内的环形套筒上，这允许在心轴内产生内部压力。 这样的内部压力不仅用于实现流体压力驱动的封隔器的设定，而且还可以向下移动球支撑套筒并且露出心轴中的交叉口，这允许通常进行砾石包装操作。