公开(公告)号：US08726995B2

公开(公告)日：2014-05-20

申请号：US12627930

申请日：2009-11-30

申请人： Matthew Robert George Bell ,  David S. Wesson ,  Nathan Garret Clark ,  John Thomas Hardesty

发明人： Matthew Robert George Bell ,  David S. Wesson ,  Nathan Garret Clark ,  John Thomas Hardesty

IPC分类号： E21B43/118 ,  E21B43/119

CPC分类号： E21B43/117 ,  E21B43/1195 ,  E21B2021/006

摘要： By using reactive shaped charges, a dynamic underbalance effect associated with detonation of a perforating system is enhanced without compromising shot density. Fewer shaped charges can be loaded to achieve the same or better effective shot density as a gun fully loaded with conventional shaped charges, thereby increasing the free volume within the gun while creating debris-free tunnels with fractured tips and substantially eliminating the crushed zone surrounding each perforated tunnel. Further, the strength and grade of gun steel required to construct the gun can be reduced without compromising the amount the gun swells following detonation.

摘要翻译： 通过使用反应形状的电荷，增强了与射孔系统的爆震相关的动态欠平衡效应，而不损害射击密度。 可以加载更少的成形电荷以实现与完全装载常规成形电荷的枪相同或更好的有效射击密度，从而增加枪内的自由体积，同时产生具有断裂尖端的无碎屑隧道，并且基本上消除了围绕每个 穿孔隧道 此外，可以减少构造枪所需的炮钢的强度和等级，而不损害喷枪在爆炸之后膨胀的量。

公开(公告)号：US07441601B2

公开(公告)日：2008-10-28

申请号：US11372883

申请日：2006-03-10

申请人： Kevin George ,  Nathan Clark ,  James Rollins ,  David S. Wesson

发明人： Kevin George ,  Nathan Clark ,  James Rollins ,  David S. Wesson

IPC分类号： E21B43/116

CPC分类号： E21B43/117 ,  E21B43/119

摘要： An improved perforation gun includes an outer gun barrel, which is used in conjunction with an inner movable charge carrier or an inner movable sleeve to trap virtually all of the debris created by the firing of the perforation gun. The charge carrier has a plurality of explosive charges initially aligned with complementary, pre-existing holes in the wall of the charge carrier, which are initially aligned with complementary, pre-existing scalloped sections of the outer gun barrel.

摘要翻译： 改进的穿孔枪包括外枪管，其与内部可移动电荷载体或内部可移动套管结合使用以捕获几乎所有由射孔枪射击产生的碎屑。 电荷载体具有多个爆炸电荷，其最初与电荷载体的壁中互补的预先存在的孔对准，其首先与外部枪筒的互补的，预先存在的扇形区段对齐。

公开(公告)号：US07353866B2

公开(公告)日：2008-04-08

申请号：US11114244

申请日：2005-04-25

申请人： Philip M. Snider ,  David S. Wesson ,  Kevin R. George ,  Joseph P. Haney

发明人： Philip M. Snider ,  David S. Wesson ,  Kevin R. George ,  Joseph P. Haney

IPC分类号： E21B43/11

CPC分类号： E21B43/263

摘要： An apparatus for stimulating a subterranean formation includes a first tube, a second tube, a combustion body and an ignition propagator. The second tube is positioned within the first tube interior and the second tube interior is sealed from the first tube interior to substantially prevent fluid communication between the first tube interior and the second tube interior. The combustion body is formed from a solid propellant and is positioned within the first tube interior external to the second tube interior. The ignition propagator is positioned within the second tube interior and is substantially free from fluid contact with fluid residing in the surrounding environment external to the first tube wall.

摘要翻译： 用于刺激地层的装置包括第一管，第二管，燃烧体和点火传播器。 第二管定位在第一管内部，并且第二管内部与第一管内部密封，以基本上防止第一管内部和第二管内部之间的流体连通。 燃烧体由固体推进剂形成，并且位于第二管内部外部的第一管内部。 点火传播器位于第二管内部，并且与位于第一管壁外部的周围环境中的流体基本上没有流体接触。

公开(公告)号：US6062310A

公开(公告)日：2000-05-16

申请号：US112713

申请日：1998-07-09

申请人： David S. Wesson ,  Don Shewchenko ,  James Rollins ,  Lile Andrich

发明人： David S. Wesson ,  Don Shewchenko ,  James Rollins ,  Lile Andrich

IPC分类号： E21B43/117 ,  E21B43/119

CPC分类号： E21B43/119 ,  E21B43/117

摘要： A tubing conveyed perforating apparatus is shown which includes a tubular assembly made up of a plurality of tubular sections. A plurality of explosive charges are located within the interior bore of at least two of the tubular sections of the tubular assembly. A firing head is carried on the tubular assembly for detonating the explosive charges to perforate a surrounding well bore. The firing head has a concentric detonator arrangement within a hollow central bore. The explosive charges are held within the interior bore of the tubular section by a support. The explosive charges and charge support are comprised of materials which disintegrate upon detonation of the explosive charges, whereby the interior bore of the tubular assembly is fully open after detonation.

摘要翻译： 示出了输送穿孔装置的管道，其包括由多个管状部分组成的管状组件。 多个爆炸炸药位于管状组件的至少两个管状部分的内孔内。 在管状组件上承载击发头，用于引爆爆炸装置以穿透周围的井眼。 击发头具有在中空中心孔内的同心雷管装置。 炸药通过支撑件保持在管状部分的内孔内。 炸药和充电支架由爆炸装置爆炸时分解的材料组成，由此管状组件的内孔在爆炸后完全打开。

公开(公告)号：US6014933A

公开(公告)日：2000-01-18

申请号：US942631

申请日：1997-10-02

申请人： Donald V. Umphries ,  Harold D. Owen ,  Bobby R. Ford ,  David S. Wesson

发明人： Donald V. Umphries ,  Harold D. Owen ,  Bobby R. Ford ,  David S. Wesson

IPC分类号： E21B43/117 ,  F42D1/02 ,  F42B3/00 ,  E21B7/00

CPC分类号： E21B43/117 ,  F42D1/02

摘要： An improved downhole explosive charge carrier is disclosed. The invention uses a unique staggered charge pattern and a mounting configuration which allows the use of a straight, axially-located detonator in order to achieve a greater number of shots per unit length over conventional carriers. The invention also reduces the interference caused by the detonator and the closeness of the shots and thereby increases the performance of the individual charges, allowing smaller charges to be used to achieve the same perforation size.

摘要翻译： 公开了一种改进的井下炸药载体。 本发明使用独特的交错电荷模式和安装配置，其允许使用直的轴向定位的雷管，以便在常规载体上实现每单位长度更多的射击次数。 本发明还减少了雷管引起的干扰和射击的紧密性，从而增加了各个电荷的性能，从而允许使用较小的电荷来实现相同的穿孔尺寸。

公开(公告)号：US5785130A

公开(公告)日：1998-07-28

申请号：US724691

申请日：1996-10-01

申请人： David S. Wesson ,  Dan W. Pratt

发明人： David S. Wesson ,  Dan W. Pratt

IPC分类号： E21B43/117 ,  E21B43/1185

CPC分类号： E21B43/117 ,  E21B43/1185

摘要： A high density perforating gun having a carrier housing tube and an interior charge holder tube through which are mounted zinc alloy shaped charges in a phased relationship between about 135 and 145 degrees. The 135 to 145 degree phased relationship provides for an 18 shot per foot perforating gun system. The shaped charges of selected length are inserted into the carrier housing tube and held in place by fastener rings fitted to fastener ring slots. The nose ends of the shaped charges are fitted with ears to receive a detonating cord. This positions the primer cord in tension and generally coaxially with the carrier housing tube to prevent charge interference and assure sequential detonation.

摘要翻译： 一种高密度射孔枪，具有载体容纳管和内部电荷保持器管，通过其安装约135和145度之间的定相关系的锌合金形状的电荷。 135度到145度的分阶段关系提供了一个18枪每脚穿孔枪系统。 所选长度的成形电荷插入载体容纳管中，并通过紧固环固定环固定在适当位置。 成形装置的鼻端装有耳朵以接收引爆绳。 这将底漆帘线放置在张紧位置并且与载体壳体管一般同轴，以防止电荷干扰并确保连续爆炸。

公开(公告)号：US5062485A

公开(公告)日：1991-11-05

申请号：US321471

申请日：1989-03-09

申请人： David S. Wesson ,  Kevin R. George

发明人： David S. Wesson ,  Kevin R. George

IPC分类号： E21B43/1185 ,  F42D1/04

CPC分类号： E21B43/1185 ,  F42D1/04

摘要： The device of the present invention comprises first means for initiating a first combustive reaction which is actuated in response to a first pressure condition in at least a portion of the well bore, means to initiate any desired number of additional combustive reactions, and means for actuation an explosive charge to actuate perforating guns, or the like, in the well bore.

摘要翻译： 本发明的装置包括用于启动响应于井眼的至少一部分中的第一压力条件致动的第一燃烧反应的第一装置，启动任何所需数量的另外的燃烧反应的装置，以及用于致动的装置 用于致动井眼中的射孔枪等的炸药。

公开(公告)号：US4800958A

公开(公告)日：1989-01-31

申请号：US146287

申请日：1988-01-20

申请人： David M. Haugen ,  David S. Wesson ,  Robert R. Luke ,  Kevin R. George

发明人： David M. Haugen ,  David S. Wesson ,  Robert R. Luke ,  Kevin R. George

IPC分类号： E21B34/10 ,  E21B43/116 ,  E21B43/119

CPC分类号： E21B43/1195 ,  E21B34/102 ,  E21B43/116

摘要： A vent subassembly includes a vent body having an opening which is covered or uncovered dependent upon the location of a vent sleeve relative to the vent body. The vent subassembly can be connected below a packer, and the vent sleeve can be connected to a perforator so that movement of the vent sleeve is concurrently communicated to the perforator, such as for initiating the firing of the perforator. The vent sleeve is moved by an actuator subassembly, which is to be connected above the packer if the vent and actuator subassemblies are used with a packer. The actuator subassembly has a piston housing, a piston slidably disposed in the piston housing, and a connector string extending from the piston to the vent sleeve. The piston is responsive to a differential pressure existing between the annulus outside the actuator subassembly and an interior pressure within the actuator subassembly.

摘要翻译： 排气子组件包括通气体，其具有取决于通气套相对于排气体的位置而被覆盖或不覆盖的开口。 排气子组件可以连接在封隔器下方，并且排气套筒可以连接到穿孔器，使得排气套筒的运动同时传递到穿孔器，例如用于开始穿孔器的点火。 如果排气阀和执行器组件与封隔器一起使用，则通气套筒由致动器子组件移动，致动器子组件将连接在封隔器上方。 致动器子组件具有活塞壳体，可滑动地设置在活塞壳体中的活塞以及从活塞延伸到通气套筒的连接器串。 活塞响应于在致动器子组件外部的环形空间和致动器子组件内部的内部压力之间存在的差压。

公开(公告)号：US4693314A

公开(公告)日：1987-09-15

申请号：US831237

申请日：1986-02-18

申请人： David S. Wesson ,  Stanley J. Wall ,  John H. Hales

发明人： David S. Wesson ,  Stanley J. Wall ,  John H. Hales

IPC分类号： E21B34/10 ,  E21B34/14 ,  E21B43/116 ,  E21B43/119 ,  E21B34/06

CPC分类号： E21B34/14 ,  E21B34/103 ,  E21B43/116 ,  E21B43/1195

摘要： A low actuation pressure bar vent for use in a tool string having low pressure therein. The vent includes a body portion and a piston slidingly disposed in the body. The piston and body define a first cavity therebetween and a second cavity therebetween, spaced from the first cavity. The body further defines a plurality of transverse ports therethrough providing communication between a body central opening and a well annulus. When in a closed position, the piston sealingly closes the ports. In a first embodiment, the first cavity has a spring disposed therein. The body also defines a second plurality of ports therein providing fluid communication between the first cavity and the well annulus. Pressure in the well annulus and the spring bias the piston toward an open position uncovering the ports. In an alternate embodiment, a pressurized gas biases the piston. The second cavity is filled with a fluid such that movement of the piston is prevented. A break plug is positioned in the piston and includes a shearable portion, which when sheared, allows the fluid in the second cavity to be released to the tubing string. The biasing force moves the piston to the open position, displacing the fluid from the second cavity. During assembly, an assembly plug holds the piston closed.

摘要翻译： 用于其中具有低压力的工具串中的低致动压力棒通气口。 通气口包括主体部分和滑动地设置在主体中的活塞。 活塞和主体在它们之间限定第一空腔，并且与第一空腔间隔开第二空腔。 主体还限定了多个横向端口，其通过本体中心开口和井环之间的连通。 当处于关闭位置时，活塞密封地封闭端口。 在第一实施例中，第一腔具有设置在其中的弹簧。 主体还限定了第二多个端口，其中提供第一腔和井环之间的流体连通。 井环中的压力和弹簧将活塞偏压到敞开的位置，露出端口。 在替代实施例中，加压气体偏压活塞。 第二腔被填充有流体，从而防止活塞的运动。 断塞被定位在活塞中并且包括可剪切部分，其在剪切时允许第二腔中的流体被释放到管柱。 偏压力将活塞移动到打开位置，使流体从第二腔排出。 在组装期间，组装塞将活塞封闭。

公开(公告)号：US09080431B2

公开(公告)日：2015-07-14

申请号：US12627897

申请日：2009-11-30

申请人： Matthew Robert George Bell ,  David S. Wesson ,  Nathan Garret Clark ,  John Thomas Hardesty

发明人： Matthew Robert George Bell ,  David S. Wesson ,  Nathan Garret Clark ,  John Thomas Hardesty

IPC分类号： E21B43/117 ,  E21B21/00

CPC分类号： E21B43/117 ,  E21B21/00 ,  E21B2021/006

摘要： By substantially eliminating the crushed zone surrounding a perforation tunnel and expelling debris created upon activation of a shaped charge with first and second successive explosive events, the need for surge flow associated with underbalanced perforating techniques is eliminated. The break down of the rock fabric at the tunnel tip, caused by the near-instantaneous overpressure generated within the tunnel, further creates substantially debris-free tunnels in conditions of limited or no underbalance as well as in conditions of overbalance.

摘要翻译： 通过基本上消除穿孔隧道周围的破碎区域，并排除在第一次和第二次连续的爆发事件激活成形装置时产生的碎屑，消除了与欠平衡穿孔技术相关的浪涌流的需要。 由隧道内产生的近瞬时超压引起的隧道尖端的岩石织物破裂，在有限或不平衡的条件下以及在过度平衡的条件下进一步产生了无碎屑隧道。