Hook block assembly for well workover

Abstract

The invention discloses a hook block assembly for well workover. The hook block assembly comprises a pulley casing in which pulleys are arranged. The pulley casing comprises right and left side plates which are connected with front and back baffles. A cross beam is arranged on the upper end of the pulley casing; and a rotary box is arranged on the lower part of the pulley casing. The upper part of a hook arranged inside a bearing is assembled in the rotary box; the circumference of the upper end of the hook is integrated with a split nut through thread; and the knuckle nut is connected with a nut casing through a fixing bolt. A boom hole for hanging a slinger is arranged on the hook; a shroud ring is arranged at the opening of the boom; and a sucker rod hook is arranged on the lower end of the hook. The hook block assembly has a reasonable structure and convenient maintenance, optimizes the structure of the hook block assembly for well workover, reduces the overall height, adds the function of a suspended rod elevator, brings about more convenient and rapider well workover, and effectively improves the efficiency of well workover.

Description

Technical field: [0001] The invention relates to a traveling block hook used in oil and gas workover operations. Background technique: [0002] At present, one of the traveling block hooks used in workover operations is the same as the traveling block hooks used in drilling operations. Because the traveling block hooks used in drilling are complex in structure, heavy in weight, and cumbersome to use and maintain, it is difficult for workover operations. Bring inconvenience; The 2nd, adopt the combination mode that the traveling tackle increases hook, has strengthened axial dimension. Because above two kinds of modes all can not directly hang sucker rod elevator, also will hang sucker rod big hook and just can promote sucker rod elevator when workover, therefore, bring inconvenience to workover. Invention content: [0003] The object of the present invention is to provide a traveling block hook for well workover with reasonable structure, convenient maintenance, convenient...

AI Technical Summary

Problems solved by technology

[0002] At present, one of the traveling block hooks used in workover operations is the same as the traveling block hooks used in drilling operations. Because the traveling block hooks used in drilling are complex in structure, heavy in weight, and cumbersome to use and maintain, it is difficult for workover operations. It brings inconvenience; the second is to use the combination of swimming block and large hook, which increases the axial dimension

Since the above two methods cannot directly hang the sucker rod elevator, the sucker rod hook must be hung to lift the sucker rod elevator during well workover, so it brings inconvenience to the well workover

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