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    • 2. 发明申请
    • Well tool and method for heating and depositing first and second charges of selective temperature melting metal alloys for repairing failure spots along a section of a tubular conduit in a subterranean well
    • 用于加热和沉积选择性温度熔融金属合金的第一和第二电荷的井具和方法,以修复地下井中的管状导管的部分的故障点
    • US20060037749A1
    • 2006-02-23
    • US10924056
    • 2004-08-20
    • Louis Wardlaw
    • Louis Wardlaw
    • E21B29/00E21B36/00
    • E21B29/10E21B36/008
    • A well tool and method for heating and depositing first and second charges of selective temperature melting metal alloys for repairing failure spots along a section of a tubular conduit, such as casing, in a subterranean well. A fuel charge is provided and is ignited to first melt the lower temperature melting metal alloy charge and thereafter the higher temperature metal alloy charge, such that a metal precipitate is formed from the heated higher temperature melting metal alloy charge. The housing defines a sacrificial wall which is opened or cleared as the higher temperature metal alloy charge melts, thus enabling the precipitate of the higher temperature melting alloy charge to be discharged from the housing to form a bridge for subsequent movements thereacross of the lower temperature melting alloy charge, into the well immediate the area of the failure spots. The failure spots are filled and/or covered by the precipitate and the lower temperature metal alloy charge to enhance the integrity of the tubular conduit such that production or other efforts may be continued within the well.
    • 一种用于加热和沉积选择性温度熔融金属合金的第一和第二电荷的井的工具和方法,用于沿地下井中的管状导管(例如套管)的部分修复故障点。 燃料装料被点燃以首先熔化较低温度的熔融金属合金电荷,然后熔化较高温度的金属合金电荷,使得由加热的较高温度的熔融金属合金电荷形成金属沉淀物。 壳体限定了牺牲壁,当较高温度的金属合金电荷熔化时,牺牲壁被打开或清除,从而使较高温度的熔融合金电荷的沉淀物从壳体排出以形成用于随后在较低温度熔化的运动的桥 合金充电,立即进入故障点的区域。 故障点由沉淀物和较低温度的金属合金充电填充和/或覆盖,以增强管状管道的完整性,从而可以在井内进行生产或其他努力。
    • 4. 发明申请
    • Apparatus and method for elevated temperature weld testing
    • 高温焊接试验装置及方法
    • US20060000261A1
    • 2006-01-05
    • US10600921
    • 2003-06-20
    • Louis Wardlaw
    • Louis Wardlaw
    • G01M3/22G01M3/28
    • G01M3/225G01M3/2884
    • In a method for testing the integrity of welds at elevated temperatures, a pressurized mixture of a gaseous environmentally safe composition is injected in an area between the inner and outer weld of a terminal flange welded to a tubular pipe section or casing. The pressurized composition includes a marker sub-composition which is detected by a detection apparatus which scans the weld. The pressure of the gas composition is also monitored to observe losses in pressure indicative of flaws in the welds. The integrity of the welds is tested at elevated temperature permitting remedial repairs to be made without reheating the tubular pipe or casing.
    • 在用于在高温下测试焊接完整性的方法中,气体环境安全组合物的加压混合物被注入焊接到管状管段或套管的端子凸缘的内焊缝和外焊缝之间的区域中。 加压组合物包括由扫描焊缝的检测装置检测的标记子组成。 还监测气体组成的压力以观察指示焊缝中的缺陷的压力损失。 在高温下测试焊缝的完整性,允许在不重新加热管状管或套管的情况下进行补救修复。
    • 5. 发明申请
    • Heating device for passage through subterranean asphalt and method of use
    • 通过地下沥青的加热装置及其使用方法
    • US20080217058A1
    • 2008-09-11
    • US11715086
    • 2007-03-05
    • Louis Wardlaw
    • Louis Wardlaw
    • E21B7/14E21B36/00E21C37/16E21B43/24
    • E21B7/14E21B7/20E21B27/02E21B36/008E21B43/10
    • A lowermost casing segment in a tubular casing string, capped with a cast iron end cap, has an ignitable thermite mixture within the interior of such casing segment which, when ignited, superheats the end cap and the casing segment, to allow the casing segment and the end cap to be lowered completely through a subterranean asphalt formation without allowing the asphalt to enter the interior of the casing segment. The cast iron end cap is then drilled out to allow further drilling through the casing segment into oil and gas formations beneath the asphalt formation. In a first embodiment, the casing segment has a top cap to constrain the thermite mixture. In a second embodiment, the thermite mixture is located within a metal capsule which can be lowered into the casing segment to rest against the bottom end cap, and then be removed by a wireline.
    • 用铸铁端盖盖住的管状套管柱中的最下面的套管段在这种套管段的内部具有可点燃的铝质混合物,当被点燃时,该端部帽和套管段过热以允许套管段和 端盖通过地下沥青层完全降低,而不允许沥青进入套管段的内部。 然后将铸铁端盖钻出,以便进一步穿过套管段进入沥青层下方的油气层。 在第一实施例中,套管段具有顶盖以约束铝热混合物。 在第二实施例中,铝质混合物位于可以下降到壳体段内的金属胶囊中,以抵靠底端盖,然后通过电缆去除。
    • 6. 发明申请
    • Apparatus and method for repairing failure spots on subterranean well tubulars using shock waves
    • 使用冲击波修复地下井管的故障点的装置和方法
    • US20070175634A1
    • 2007-08-02
    • US10924057
    • 2004-08-20
    • Louis Wardlaw
    • Louis Wardlaw
    • E21B33/12
    • E21B29/10E21B29/02E21B43/103
    • An apparatus and method are disclosed for the repair of failure spots, such as holes, crevices, and the like, along a first tubular section, such as casing section(s) in subterranean wells. The apparatus includes a housing made of a malleable material, such as steel, which is responsive to shock waves generated by an explosive material, such as a detonator cord, carried inside the housing. The explosive detonator cord is activated to generate shock waves within the housing to expand the malleable housing to conform to the wall holes, openings and failure spots in the casing. Thereafter, a head, selectively securable to the housing, is disengaged from the housing during retrieval of the head after activation of the detonator cord, to retrieve the head from the well and leave the malleable housing intact and across the failure spots.
    • 公开了一种用于沿着第一管状部分(例如地下井中的套管部分)修复故障点(例如孔,缝隙等)的装置和方法。 该装置包括由可延展材料(例如钢)制成的壳体,该壳体响应于承载在壳体内部的诸如雷管的爆炸材料产生的冲击波。 爆炸雷管被激活以在壳体内产生冲击波,以扩展可延展的壳体以符合壳体中的壁孔,开口和故障点。 此后,在启动雷管之后,在头部取出头部之间,选择性地固定到壳体上的头部与壳体脱离接合,从孔中取出头部,并使可延展的壳体完好无损地穿过故障点。