Low stress casing joint configuration
    1.
    发明授权
    Low stress casing joint configuration 失效
    低应力套管接头配置

    公开(公告)号:US5505135A

    公开(公告)日:1996-04-09

    申请号:US379701

    申请日:1995-01-27

    IPC分类号: F42B3/28 F42B1/00

    CPC分类号: F42B3/28

    摘要: A pulverable casing (10) includes a housing (12) which is made from a ceramic material and which defines a circular housing closure surface (18). There is a cover (14) on the housing (12). The cover (14) is also made from a ceramic material and defines a circular cover closure surface (20). Cover (14) has a rounded conical exterior surface (24) that defines a skirt angle S of about 120.degree.. The cover closure surface (20) is dimensioned and configured to engage the housing closure surface (18) to define a housing-cover joint (22) which defines a joint angle .alpha. of about 130.degree.. In a particular embodiment, the exterior surface (24) of the cover (14) is rounded to a radius of about 1.8 inches and has a diameter D of about 3.28 inches.

    摘要翻译: 可粉化的壳体(10)包括由陶瓷材料制成并限定圆形壳体封闭表面(18)的壳体(12)。 壳体(12)上有一个盖子(14)。 盖(14)也由陶瓷材料制成,并且限定了一个圆形盖封闭表面(20)。 盖(14)具有限定约120度的裙角S的圆锥形外表面(24)。 盖封闭表面(20)的尺寸设计和配置以接合壳体封闭表面(18)以限定限定约130°的关节角度α的壳体 - 盖接头(22)。 在一个具体实施例中,盖(14)的外表面(24)被圆化成约1.8英寸的半径,并且具有约3.28英寸的直径D.

    Well pipe perforating gun
    2.
    发明授权
    Well pipe perforating gun 失效
    井管穿孔枪

    公开(公告)号:US5477785A

    公开(公告)日:1995-12-26

    申请号:US379303

    申请日:1995-01-27

    IPC分类号: E21B43/116 F42B3/00 E21B17/14

    CPC分类号: E21B43/116

    摘要: A well pipe perforating gun (10) is improved by the utilization of a pulverable support structure (14) to hold the explosive shaped charges (18a, 18b, etc.) and the fireset (20). When the gun (10) is fired, the support structure (14) disintegrates substantially into fragments too small to obstruct the flow of oil or natural gas from a surrounding earth formation into or through the well pipe (12) within which the gun is disposed. Optionally, the support structure (14) is assembled from a number of segments (14a, 14b, etc.) linked together in sequential fashion.

    摘要翻译: 通过利用可粉碎的支撑结构(14)来保持爆炸性成形装置(18a,18b等)和火力发电机(20)来改善井管穿孔枪(10)。 当枪(10)被点燃时,支撑结构(14)基本上分解成太小的碎片,不能阻挡油或天然气从周围的地层流入或穿过其中设置枪的井管(12) 。 可选地,支撑结构(14)从连续的连接在一起的多个段(14a,14b等)组装起来。