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1. 发明申请

US20080264639A1 Method and Apparatus for Orienting Perforating Devices 有权
标题翻译：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。

2. 发明授权

US07159657B2 Shaped charge loading tube for perforating gun 有权
标题翻译：用于穿孔枪的成形装料管
公开(公告)号：US07159657B2
公开(公告)日：2007-01-09
申请号：US10708777
申请日：2004-03-24
申请人： Wanchai Ratanasirigulchia , Wenbo Yang , Cynthia L. Hickson , Robert A. Parrott
发明人： Wanchai Ratanasirigulchia , Wenbo Yang , Cynthia L. Hickson , Robert A. Parrott
IPC分类号： E21B43/116
CPC分类号： E21B43/119 , E21B43/117
摘要： The loading tube comprises cups forming cup cavities for enclosing an explosive charge within each of the cups. The loading tube has ridges and valleys providing longitudinal and lateral strength to the loading tube. The loading tube is constructed of a formed material such as paper pulp, high-density polystyrene, plastic or sheet metal.
摘要翻译：装载管包括形成杯腔的杯子，用于在每个杯子内包围炸药。装载管具有向加载管提供纵向和横向强度的脊和谷。加载管由纸浆，高密度聚苯乙烯，塑料或钣金等成形材料构成。

3. 发明授权

US06397752B1 Method and apparatus for coupling explosive devices 有权
标题翻译：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。

4. 发明授权

US5505134A 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.

5. 发明授权

US08439114B2 Method and apparatus for orienting perforating devices 有权
公开(公告)号：US08439114B2
公开(公告)日：2013-05-14
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.

6. 发明授权

US07213655B2 System for connecting downhole tools 有权
标题翻译：连接井下工具的系统
公开(公告)号：US07213655B2
公开(公告)日：2007-05-08
申请号：US10708766
申请日：2004-03-24
申请人： Robert A. Parrott
发明人： Robert A. Parrott
IPC分类号： E21B17/042
CPC分类号： E21B17/04 , E21B43/11
摘要： A hands-free connection system is provided for coupling downhole tools for use in well operations. The connection system includes two downhole tools connectable together in threaded engagement. The connection system further includes a compressible locking sleeve positioned between the coupled downhole tools for maintaining the tools in threaded engagement and in a predetermined alignment for deployment downhole.
摘要翻译：提供免提连接系统，用于连接用于井操作的井下工具。连接系统包括两个可螺纹连接在一起的井下工具。连接系统还包括位于联接的井下工具之间的可压缩锁定套筒，用于将工具保持为螺纹接合并且以预定的对准方式在井下部署。

7. 发明授权

US07114564B2 Method and apparatus for orienting perforating devices 有权
公开(公告)号：US07114564B2
公开(公告)日：2006-10-03
申请号：US10435320
申请日：2003-05-09
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： E21B43/119
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.

8. 发明授权

US06588508B2 Method and apparatus to reduce trapped pressure in a downhole tool 失效
公开(公告)号：US06588508B2
公开(公告)日：2003-07-08
申请号：US09920430
申请日：2001-08-01
申请人： Robert A. Parrott , Haoming Li , Anthony P. Vovers , Cynthia L. Hickson , Harry B. Anderson , John M. Corben
发明人： Robert A. Parrott , Haoming Li , Anthony P. Vovers , Cynthia L. Hickson , Harry B. Anderson , John M. Corben
IPC分类号： E21B43116
CPC分类号： E21B43/119
摘要： A tool string for use in a well includes a filter sub (or trapped pressure regulator sub) that is used with other components to reduce trapped pressure. The filter sub filters out debris that may occur from various types of downhole operations, such as perforating operations. By filtering out larger debris, only gases, liquids, and smaller particles are allowed to enter various components of the tool string. Without the presence of larger solid debris inside certain components of the tool string, the likelihood of plugs being formed is reduced so that gases and liquids can more readily pass out of the tool string as the tool string is retrieved to the surface of the well and the well hydrostatic pressure decreases.

9. 发明授权

US06523449B2 Perforating gun 有权
公开(公告)号：US06523449B2
公开(公告)日：2003-02-25
申请号：US09760515
申请日：2001-01-11
申请人： Alfredo Fayard , Haoming Li , Robert A. Parrott
发明人： Alfredo Fayard , Haoming Li , Robert A. Parrott
IPC分类号： F41F500
CPC分类号： E21B43/117
摘要： A technique includes arranging perforating charges of a perforating gun into groups of adjacent perforating charges. Each perforating charge of each group is aligned in a direction associated with the group. The groups are oriented to form a phasing for the perforating gun.

10. 发明授权

US06460463B1 Shaped recesses in explosive carrier housings that provide for improved explosive performance in a well 有权
标题翻译：爆炸载体壳体中的成形凹槽，可提高井中爆炸性能
公开(公告)号：US06460463B1
公开(公告)日：2002-10-08
申请号：US09498244
申请日：2000-02-03
申请人： Robert A. Parrott , Janet S. Denney , Jack F. Lands , Alfredo Fayard
发明人： Robert A. Parrott , Janet S. Denney , Jack F. Lands , Alfredo Fayard
IPC分类号： F42B300
CPC分类号： E21B43/117
摘要： A carrier for containing explosives (e.g., shaped charges) includes a housing having a plurality of recesses, each recess having a periphery and a side surface extending around the periphery. The side surface is shaped to a geometry to reduce or control reflection of compression waves generated in response to an explosive jet (e.g., a perforating jet) created due to detonation of an explosive. The side surface may be slanted from a bottom surface of the recess, or a predetermined profile may be formed in the side surface to scatter or direct compression waves. One or more shock absorbing inserts may also be placed in recesses formed by the inserts, or the recesses may be capped to trap air so that compression waves generated in the recesses are significantly reduced as compared to compression waves generated in well fluids.
摘要翻译：用于容纳炸药（例如，成形装料）的载体包括具有多个凹部的壳体，每个凹部具有周边和围绕周边延伸的侧面。侧表面被成形为几何形状以减少或控制响应于由于爆炸物的爆炸而产生的爆炸射流（例如，射孔射流）而产生的压缩波的反射。侧表面可以从凹部的底表面倾斜，或者可以在侧表面中形成预定的轮廓以散射或引导压缩波。一个或多个减震插入件也可以放置在由插入件形成的凹槽中，或者凹部可以被盖住以捕获空气，使得在凹槽中产生的压缩波与在井流体中产生的压缩波相比显着降低。

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