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    • 3. 发明授权
    • Circulating gun system
    • 循环枪系统
    • US06220370B1
    • 2001-04-24
    • US09433034
    • 1999-10-28
    • David S. WessonGabe WilligerLyle W. Andrich
    • David S. WessonGabe WilligerLyle W. Andrich
    • E21B43117
    • E21B43/116E21B43/119
    • A tubing conveyed perforating apparatus is shown which includes a tubular firing section which carries a plurality of explosive charges. The explosive charges are initially aligned with regions of reduced wall area provided in a tubular firing section which initially surrounds the charges. A piston sleeve is mounted on the exterior of the firing section. The piston sleeve has a plurality of apertures which are initially aligned with the regions of reduced wall area in the tubular firing section and thus with the explosive charges. Detonation of the charges causes the piston sleeve to shift so that the piston sleeve apertures are out of alignment with openings formed in the tubular firing section by the detonation of the charges, thereby trapping any resulting debris within the interior of the tubular firing section. Firing of the explosive charges opens upper and lower circulating ports so that sand or other debris can be reverse circulated up the interior of the well string to the well surface. A piston actuated retrieving head can be utilized to engage and retrieve a sealing plug from a sump packer within the well bore.
    • 示出了输送穿孔装置的管道,其包括携带多个爆炸装药的管状燃烧部分。 炸药最初与最初包围电荷的管状点火部分中提供的壁面积减小的区域对齐。 活塞套筒安装在击发部分的外部。 活塞套筒具有多个孔,它们最初与管状点火部分中的壁面积减小的区域对准,因此与爆炸装置对齐。 电荷的引爆导致活塞套筒移动,使得活塞套筒孔与通过电荷引爆形成在管状点火部分中的开口不对齐,从而将任何产生的碎屑捕获在管状点火部分内部。 燃烧炸药打开上下循环口,使得沙子或其他碎屑可以从井筒内部向井筒表面反向循环。 活塞致动的回收头可以用于从井筒内的贮槽封隔器接合和回收密封塞。
    • 7. 发明授权
    • Low debris shaped charge perforating apparatus and method for use of same
    • 低碎片形充电射孔装置及其使用方法
    • US06497285B2
    • 2002-12-24
    • US09813738
    • 2001-03-21
    • Jerry L. Walker
    • Jerry L. Walker
    • E21B43117
    • E21B43/117
    • A shaped charge perforating apparatus (50) for perforating a subterranean well is disclosed. The shaped charge perforating apparatus (50) comprises a support member (62) having a plurality of shaped charge mounting locations each having shaped charge (56) positioned therein. Each of the shaped charges (56) has an initiation end and a discharge end. The initiation end of each shaped charge (56) is coupled to a detonator cord (70) The shaped charges (56) are enclosed in a carrier (52) having a plurality of recesses (54) spaced on an exterior surface thereof and having contoured bottom surfaces (80). Each of the recesses (54) is longitudinally and radially aligned with the discharge end of one of the shaped charges (56).
    • 公开了一种用于穿孔地下井的成形电荷穿孔装置(50)。 成形电荷穿孔装置(50)包括具有多个成形电荷安装位置的支撑构件(62),每个充电安装位置均具有定位的电荷(56)。 每个成形电荷(56)具有起始端和放电端。 每个成形电荷(56)的起始端连接到雷管(70)。成形电荷(56)被封装在具有在其外表面上间隔开的多个凹部(54)的载体(52)中, 底面(80)。 每个凹部(54)与其中一个成形电荷(56)的排出端纵向和径向对准。
    • 8. 发明授权
    • Safety method and apparatus for a perforating gun
    • 穿孔枪的安全方法和装置
    • US06298924B1
    • 2001-10-09
    • US09641828
    • 2000-08-18
    • Vladimir VaynshteynChristian C. Spring
    • Vladimir VaynshteynChristian C. Spring
    • E21B43117
    • F42D1/055E21B43/11857
    • An apparatus for use in a subterranean well includes a downhole energy source, a first switch, a second switch, a detonator, a first controller and a second controller. The first switch has a first predetermined state to transfer energy from the energy source, and the second switch has a second predetermined state to transfer the energy from the energy source. A detonator receives the energy from the energy source when the first switch and second switches are concurrently in the first and second predetermined states. A first controller independently detects a predetermined stimulus that is transmitted from the surface of the well and causes the first switch to enter to first predetermined state based on the detection by the first controller. A second controller independently detects the predetermined stimulus transmitted from the surface of the well and causes the second switch to enter the second predetermined state based on the detection by the second controller.
    • 一种用于地下井的装置包括井下能量源,第一开关,第二开关,雷管,第一控制器和第二控制器。 第一开关具有从能量源传递能量的第一预定状态,并且第二开关具有第二预定状态以从能量源传递能量。 当第一开关和第二开关同时处于第一和第二预定状态时,雷管从能量源接收能量。 第一控制器独立地检测从井的表面发送的预定的刺激,并且基于第一控制器的检测使第一开关进入第一预定状态。 第二控制器独立地检测从井的表面发送的预定刺激,并且基于第二控制器的检测使第二开关进入第二预定状态。
    • 9. 发明授权
    • Apparatus for continuously perforating in oil wells
    • 用于在油井中连续射孔的装置
    • US06637507B2
    • 2003-10-28
    • US10002561
    • 2001-11-15
    • Xueyi Cong
    • Xueyi Cong
    • E21B43117
    • E21B43/119E21B43/116
    • The invention relates to a process for continuously perforating in a wellbore comprising the following steps of determining a location to be perforated in the wellbore proximate an oil formation; placing an apparatus comprising a plurality of charges to said location in the wellbore; and continuously conducting perforation at said location with said charges in the apparatus. The invention also provides an apparatus for specifically performing the process, which comprises a transmitting system, a positioning system and a controlling system. The process and the apparatus can be used in a poor condition of the formation.
    • 本发明涉及一种用于在井眼中连续穿孔的方法,包括以下步骤:确定靠近油层的井眼中要穿孔的位置; 将包括多个电荷的装置放置在所述井眼中的所述位置; 并在所述位置连续地进行穿孔,所述装置中具有所述电荷。 本发明还提供一种用于专门执行该过程的装置,其包括发送系统,定位系统和控制系统。 该方法和装置可用于形成不良状况。