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    • 5. 发明授权
    • Securing device for a flotation assembly
    • 用于浮动装配的安全装置
    • US3705432A
    • 1972-12-12
    • US3705432D
    • 1971-05-25
    • DATA PACKAGING CORP
    • WATKINS LOUIE W JR
    • E21B17/01F16L1/24B63B21/52
    • E21B17/012F16L1/24
    • A flotation assembly for a riser pipe generally includes a pair of elongated semiannular flotation collars fabricated in part of a buoyant material and each including a pair of spaced clamps useful in attaching the collars about the riser pipe. These clamps are preferably imbedded within an inner surface of the collar. The present invention is directed to securing devices for retaining the clamps, and in turn the collars, in place tightly against the riser pipe. These securing devices also hold the choke and kill lines, conventionally associated with a riser pipe, in place adjacent the riser pipe.
    • 用于提升管的浮选组件通常包括一部分浮动材料制成的细长半月浮选环,每一个包括一对间隔开的夹具,用于将套环安装在提升管附近。 这些夹具优选地嵌入在套环的内表面内。 本发明涉及用于将夹具固定的装置,以及紧固在立管上的套环。 这些固定装置还将扼流圈和通常与提升管相关联的管线保持在靠近提升管的位置。
    • 9. 发明授权
    • Flotation assembly
    • 浮动装配
    • US3729756A
    • 1973-05-01
    • US3729756D
    • 1971-02-17
    • DATA PACKAGING CORP
    • COOK SWATKINS L
    • E21B17/01B63B21/52E21B7/12
    • E21B17/012
    • A riser pipe, usually used in drilling for oil, has an annular flotation collar positioned about it. This collar comprises a pair of semiannular flotation members each of which includes a semicircular outer shell of fiberglass, a semiannular low density core preferably including a plurality of plastic hollow spheres surrounded by a syntactic foam, and arcuately-shaped clamping means embedded in the core. Passages through one of the semiannular flotation members provide access to the clamping means so that it may be secured to the riser pipe. The clamping means also includes recesses for holding the choke and kill lines in place on opposite sides of the riser pipe and spaced therefrom.
    • 通常用于钻油的提升管具有围绕其定位的环形浮选环。 该套环包括一对半球状浮选构件,每个半球形浮选构件包括玻璃纤维的半圆形外壳,优选地包括被复合泡沫包围的多个塑料中空球的半球形低密度芯以及嵌入在芯中的弧形夹持装置。 通过其中一个半岛形浮选部件的通道提供对夹紧装置的通路,使得其可固定到提升管。 夹持装置还包括用于将扼流圈夹持的凹槽,并将管线排入提升管的相对侧并与之隔开的位置。