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    • 1. 发明申请
    • CUTTING DEVICE SAFETY VALVE, METHOD AND USES FOR SEVERING A PIPE-STRING-RELATED OBJECT IN A SAFETY VALVE FOR A WELL
    • 切割装置安全阀,用于在安全阀中清洁与管道相关的物体的方法和用途
    • WO2012158044A1
    • 2012-11-22
    • PCT/NO2012/050089
    • 2012-05-16
    • SMART INSTALLATION ASBIRKELAND, Petter
    • BIRKELAND, Petter
    • E21B29/08B23D21/00E21B33/06
    • E21B33/063B23D15/02B23D15/14B23D21/00E21B29/08
    • A cutting device (16), safety valve (2) and method for severing an object (14) in said safety valve (2) for a well (4), wherein the cutting device (16) is structured for incorporation in the safety valve (2). The distinctive characteristic of the cutting device (16) and the safety valve (2) is that it comprises a housing (10) having a through bore (12) structured for passing said object (14) therethrough; - wherein the cutting device (16)/the safety valve (2) comprises at least one induction coil device (20) disposed in said housing (10), and around at least a portion of the bore (12) of the housing (10); - wherein said induction coil device (20) is directed inwards in the direction of the bore (12); - wherein the induction coil device (20) is structured for optional, cutting-promoting heating, hence thermal structural weakening, of the object (14) when located vis-a-vis the induction coil device (20); - wherein the induction coil device (20) is structured in a manner allowing it to be connected to at least one electric power source for supply of electric power for said heating; and - wherein the housing (10) comprises a heat-insulating portion disposed between the induction coil device (20) and the housing (10).
    • 一种切割装置(16),安全阀(2)以及用于将井(4)的所述安全阀(2)中的物体(14)切断的方法,其中所述切割装置(16)构造成并入安全阀 (2)。 切割装置(16)和安全阀(2)的特征在于其包括具有通孔(12)的壳体(10),所述通孔被构造成用于使所述物体(14)穿过其中; - 其中所述切割装置(16)/所述安全阀(2)包括设置在所述壳体(10)中的至少一个感应线圈装置(20),并且围绕所述壳体(10)的所述孔(12)的至少一部分 ); - 其中所述感应线圈装置(20)在孔(12)的方向上向内指向; - 其中所述感应线圈装置(20)被构造为当与所述感应线圈装置(20)相对位置时,所述物体(14)可选择地切割促进加热,因此所述热结构弱化。 - 其中所述感应线圈装置(20)以允许其连接到用于为所述加热供应电力的至少一个电源的方式构造; 和 - 其中所述壳体(10)包括设置在所述感应线圈装置(20)和所述壳体(10)之间的绝热部分。
    • 3. 发明申请
    • A CUTTING DEVICE AND A METHOD FOR EMERGENCY CUTTING OF A LINE IN A WELL
    • 一种切割装置和一种用于紧急切割线的方法
    • WO2008085062A1
    • 2008-07-17
    • PCT/NO2008/000008
    • 2008-01-09
    • SMART INSTALLATIONS ASBIRKELAND, PetterKOLDAL, Øyvind
    • BIRKELAND, PetterKOLDAL, Øyvind
    • E21B29/04
    • E21B29/04
    • A cutting device (2) and a method for emergency cutting of a line (12) in a well. The cutting device (2) comprises: - a tapering guide (18) including a narrow end portion (20) and a wide end portion (22) for feed-through of the line (12), the narrow end portion (20) being placed, when in its position of use, at a lower position than that of the wide end portion (22); - at least one sliding block (30, 32) arranged axially movable within the tapering guide (18); - at least one cutting knife (38, 40) connected to the sliding block (30, 32) and directed inwards in the tapering guide (18); - at least one releasable holding mechanism for standby holding of the at least one sliding block (30, 32) at the wide end portion (22) of the guide (18), and for releasing the at least one sliding block (30, 32) in connection with emergency cutting of the line (12). Upon release, the at least one sliding block (30, 32) will move downward in the direction of the narrow end portion (20) of the guide (18) where it will force its at least one cutting knife (38, 40) with increasing force against the line (12) until it is cut off.
    • 切割装置(2)和用于在井中紧急切割线(12)的方法。 所述切割装置(2)包括: - 锥形引导件(18),其包括窄端部分(20)和用于所述管线(12)的通孔的宽端部分(22),所述窄端部分(20)为 当处于其使用位置时,位于比宽端部(22)更低的位置处; - 至少一个滑动块(30,32),其在所述锥形导向件(18)内可轴向移动; - 至少一个切割刀(38,40),其连接到所述滑动块(30,32)并且在所述锥形引导件(18)中向内指向; - 至少一个可释放的保持机构,用于在所述引导件(18)的所述宽端部(22)处待机保持所述至少一个滑动块(30,32),并且用于释放所述至少一个滑动块(30,32) )与线(12)的紧急切割有关。 在释放时,至少一个滑动块(30,32)将沿着引导件(18)的窄端部分(20)的方向向下移动,在该位置将迫使其至少一个切割刀(38,40)与 增加对线(12)的力,直到被切断。