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28 条记录 (耗时 0.025 秒)

    Perforating gun having a plurality of charges including a corresponding plurality of exploding foil or exploding bridgewire initiator apparatus responsive to a pulse of current for simultaneously detonating the plurality of charges
    1.
    发明授权
    Perforating gun having a plurality of charges including a corresponding plurality of exploding foil or exploding bridgewire initiator apparatus responsive to a pulse of current for simultaneously detonating the plurality of charges 失效

    公开(公告)号：US5505134A

    公开(公告)日：1996-04-09

    申请号：US220071

    申请日：1994-03-29

    申请人： James E. Brooks ,  Nolan C. Lerche ,  Clifford L. Aseltine ,  Kenneth E. Rozek ,  Robert A. Parrott

    发明人： James E. Brooks ,  Nolan C. Lerche ,  Clifford L. Aseltine ,  Kenneth E. Rozek ,  Robert A. Parrott

    IPC分类号： E21B43/1185 ,  F42D1/02 ,  F42D1/045 ,  F42D1/05 ,  F42C19/12

    CPC分类号： F42D1/045 ,  E21B43/1185 ,  F42D1/02 ,  F42D1/05

    摘要： A perforating apparatus adapted to be disposed in a wellbore includes a plurality of shaped charges, an electrical current carrying conductor, and a plurality of exploding foil or exploding bridgewire initiators disposed, respectively, between the plurality of charges and the current carrying conductor for simultaneously detonating thereby simultaneously detonating all of the plurality of shaped charges of the perforating apparatus in response to a current flowing in the conductor. Each of the shaped charges include a new secondary explosive primer disposed in the apex of the charge for detonating in response to a detonation of the exploding foil or exploding bridgewire initiator. The electrical conductor may include a flat cable having a plurality of such initiators spaced apart at predetermined intervals along the cable and adapted to wrap helically around the perforating apparatus until each of the initiators abut against a shaped charge of the plurality of charges in the perforating apparatus. In an alternate embodiment, the electrical current carrying conductor may include a flat sheet having a specific length and width and including a plurality of such initiators. The flat sheet is adapted to wrap around the entire circumference of the perforating apparatus until each of the initiators in the sheet abut against a shaped charge of the plurality of charges in the perforating apparatus. The current in the conductor may originate from a compressed magnetic flux (CMF) current pulse generator or from a charging capacitor of a conventional system including one or more charging capacitors and associated discharge switches. When the perforating apparatus includes a first and second perforator separated by an adaptor, the adaptor includes a pressure bulkhead adapted to seal the first perforator from the second perforator, an explosive disposed in contact against one side of the bulkhead and a piezoelectric ceramic disposed in contact against the other side of the bulkhead.

    Method and Apparatus for Orienting Perforating Devices
    2.
    发明申请
    Method and Apparatus for Orienting Perforating Devices 有权
    用于定向穿孔装置的方法和装置

    公开(公告)号：US20080264639A1

    公开(公告)日：2008-10-30

    申请号：US11425876

    申请日：2006-06-22

    申请人： Robert A. Parrott ,  David Mills ,  Cynthia L. Hickson ,  Jerry D. Campbell

    发明人： Robert A. Parrott ,  David Mills ,  Cynthia L. Hickson ,  Jerry D. Campbell

    IPC分类号： E21B43/118

    CPC分类号： E21B43/117 ,  E21B17/05 ,  E21B17/1057 ,  E21B43/1185 ,  E21B43/119 ,  E21B47/024

    摘要： The present invention provides an apparatus and method of orienting perforating gun strings conveyed on a tool string. One embodiment of the present invention provides an orienting weight provided in a portion of the perforating device, such as the shaped charge, the loading tube or the gun housing. An adapter is provided intermediate the tool string that facilitates conveyance of the gun string downhole. Additionally, the adapter enables the gun string to rotate independent of the tool string.

    摘要翻译： 本发明提供了一种定向在工具串上传送的穿孔枪串的装置和方法。 本发明的一个实施例提供了一种定向重物，其设置在穿孔装置的一部分中，例如成形装药，装载管或枪壳体。 在工具串之间设置有一个适配器，便于枪管在井下的传送。 另外，适配器可使枪串独立于工具串旋转。

    Method and apparatus for coupling explosive devices
    4.
    发明授权
    Method and apparatus for coupling explosive devices 有权
    用于联接爆炸装置的方法和装置

    公开(公告)号：US06397752B1

    公开(公告)日：2002-06-04

    申请号：US09481913

    申请日：2000-01-12

    申请人： Wenbo Yang ,  Robert A. Parrott

    发明人： Wenbo Yang ,  Robert A. Parrott

    IPC分类号： C06C504

    CPC分类号： E21B43/1185

    摘要： A gun system in one arrangement includes a first carrier including a detonating cord and a second carrier including a detonating cord. An adapter couples the first and second carriers, with the adapter including an explosive coupled to the detonating cord of one of the first and second carriers. The explosive is positioned in a reduced housing portion of the adapter. The reduced housing portion of the adapter has a first outer diameter less than an inner diameter of the first carrier to provide a predetermined annular space between the reduced adapter portion and the inner diameter of the first carrier. At least one of the detonating cords in the first and second carriers is attached to a retainer element, and the retainer element is placed in close proximity to the explosive to maintain an axial position of the detonating cord to reduce separation between the detonating cord and the explosive. In addition, the explosive is placed some axial distance away from sensitive elements in the adapter, such as sealing elements and connector elements, to protect the sensitive elements from detonation of the explosive.

    摘要翻译： 一种装置中的枪系统包括包括引爆绳的第一载体和包括引爆绳的第二载体。 适配器将第一和第二载体连接，适配器包括联接到第一和第二载体之一的引爆绳的爆炸物。 炸药定位在适配器的减小的壳体部分中。 适配器的减小的壳体部分具有小于第一载体的内径的第一外径，以在减小的适配器部分和第一载体的内径之间提供预定的环形空间。 第一和第二托架中的至少一个引爆绳附接到保持器元件，并且保持器元件被放置在紧邻炸药的位置，以保持引爆绳的轴向位置，以减少引爆绳和 爆炸性 此外，炸药被放置在适配器中的敏感元件（例如密封元件和连接器元件）的一些轴向距离处，以保护敏感元件免于爆炸物的爆炸。

    Cooling system for downhole tools
    8.
    发明授权
    Cooling system for downhole tools 失效
    井下工具冷却系统

    公开(公告)号：US06336408B1

    公开(公告)日：2002-01-08

    申请号：US09240955

    申请日：1999-01-29

    申请人： Robert A. Parrott ,  Haoshi Song ,  Kuo-Chiang Chen

    发明人： Robert A. Parrott ,  Haoshi Song ,  Kuo-Chiang Chen

    IPC分类号： F42B300

    CPC分类号： E21B47/011 ,  E21B36/001 ,  Y10S102/704 ,  Y10S102/705

    摘要： Apparatus and method for cooling a component inside a tool includes a container and a plurality of heat sinks positioned in the container. The components are positioned in the container with the heat sinks for maintaining a reduced temperature inside the container. Further, an insulating layer and a reflective layer surround the heat sinks and components to reduce heat transfer. Alternatively, the container can have a hollow wall that encloses the space in which a heat sink material (such as an eutectic material) is disposed. The components to be protected are located in the container. The eutectic material includes a composition having tin and zinc. The insulating layer includes a container that stores a vacuum layer, such as a dewar flask.

    摘要翻译： 用于冷却工具内的部件的装置和方法包括容器和位于容器中的多个散热器。 这些部件定位在具有散热器的容器中，以保持容器内的降低的温度。 此外，绝缘层和反射层围绕散热器和部件以减少热传递。 或者，容器可以具有封闭其中设置有散热材料（例如共晶材料）的空间的中空壁。 待保护的部件位于容器中。 共晶材料包括具有锡和锌的组合物。 绝缘层包括容纳真空层的容器，例如杜瓦瓶。

    Insert and twist method and apparatus for securing a shaped charge to a loading tube of a perforating gun
    9.
    发明授权
    Insert and twist method and apparatus for securing a shaped charge to a loading tube of a perforating gun 有权
    用于将成形电荷固定到穿孔枪的装载管的插入和扭转方法和装置

    公开(公告)号：US5952603A

    公开(公告)日：1999-09-14

    申请号：US167846

    申请日：1998-10-07

    申请人： Robert A. Parrott

    发明人： Robert A. Parrott

    IPC分类号： E21B43/117 ,  F42B3/00

    CPC分类号： E21B43/117

    摘要： A loading tube of a perforating gun includes a plurality of mating holes, where each mating hole has a specific and predetermined contour, and a case of a shaped charge, adapted to fit within the mating hole, includes a pair of retaining lugs and a pair of shoulder lugs, which lugs are adapted to uniquely cooperate with the contour of the mating hole of the loading tube for securing the shaped charge to the loading tube. The predetermined contour of each mating hole includes a pair of slots disposed opposite one another in the mating hole, and a pair of grooves disposed opposite one another in the mating hole but offset from the pair of slots. Each pair of grooves includes a large radius groove and a small radius groove. The pair of retaining lugs of the shaped charge case are adapted to be received, respectively, in the pair of slots of the contour of the mating hole; whereas the pair of shoulder lugs are adapted to be initially received in the pair of large radius grooves of the contour of the mating hole. When the shaped charge is twisted clockwise in a circumferential direction, the retaining lugs move out of their respective slots and under a surface of the loading tube; in addition, the shoulder lugs moves out of their respective large radius grooves and into their respective small radius grooves. The shaped charge case is now firmly held within the mating hole of the loading tube. No clips, bending tabs, retaining rings, or charge retention jackets are being used to hold the shaped charge to the loading tube; therefore, when the charges detonate, there will be no debris resultant from the detonation.

    摘要翻译： 射孔枪的加载管包括多个配合孔，其中每个配合孔具有特定且预定的轮廓，适于装配在配合孔内的成形装料的壳体包括一对保持凸耳和一对 的肩部凸耳，该凸耳适于与加载管的配合孔的轮廓独特配合，以将成形的电荷固定到加载管。 每个配合孔的预定轮廓包括在配合孔中彼此相对设置的一对槽，以及在配合孔中彼此相对设置但是从该对槽偏移的一对槽。 每对凹槽包括一个大的半径凹槽和一个小的半径凹槽。 成形的充电盒的一对固定凸耳适于分别容纳在配合孔的轮廓的一对槽中; 而一对肩部凸耳适于最初被容纳在配合孔的轮廓的一对大的半径槽中。 当成形装料沿圆周方向顺时针扭转时，保持凸耳从它们各自的狭槽中移出并在装载管的表面下方移动; 此外，肩部凸耳从它们各自的大半径凹槽中移出并进入它们各自的小半径凹槽中。 成形的充电盒现在牢固地保持在装载管的配合孔内。 正在使用夹子，弯曲片，固定环或电荷保持护套来将成形的电荷保持在装载管中; 因此，当电荷引爆时，爆炸物将不会产生碎屑。