A device for fishing downhole tubular objects
A salvage device and a technology for tubular objects, which are used in wellbore/well components, earth-moving drilling, etc., can solve problems such as difficulty in salvaging tubular falling objects downhole, and achieve the effects of high salvage efficiency, easy operation, and convenient carrying and transportation.
Active Publication Date: 2017-11-17
SUILING COUNTY MIAOYUAN WELL TECH CO LTD
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Problems solved by technology
[0003] The object of the present invention is to provide a device for fishing downhole tubular objects to solve the technical problem of difficulty in fishing downhole tubular objects in the prior art
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[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, ...
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The invention provides a downhole tubular object fishing device and relates to the technical field of downhole falling object fishing in order to solve the problem that downhole tubular falling objects are difficult to fish. The downhole tubular object fishing device comprises a hoisting hook, a hoisting ring and a shell with a cavity. One end of the hoisting ring is connected with the hoisting hook in a hooked mode, the other end of the hoisting ring is connected with the shell, the hoisting ring is provided with a tubular object limiting shaft, the bottom end of the shell is connected with a guide head, a conical clamping element is arranged in the cavity and connected with a rope, a plurality of bayonets are arranged on the side wall of the shell, at least two clamping teeth are installed in the cavity and are sequentially connected end to end, and the clamping teeth are connected through connecting pieces. Each connecting piece comprises at least one reset elastic element. The tip end of the conical clamping element extends out of the area formed by the clamping teeth, the conical clamping element is pulled by the rope to move along the cavity, and accordingly the clamping teeth are driven to stretch out of the corresponding bayonets. The downhole tubular object fishing device is used for fishing tubular objects located in a downhole.
Description
technical field [0001] The invention relates to the technical field of downhole fishing, in particular to a downhole fishing device for tubular objects. Background technique [0002] During the use of various wells, tubular objects (such as iron pipes, plastic pipes, rubber pipes, etc.) often fall into the wells accidentally, and the salvage of downhole tubular objects has always been a headache for professionals, including salvage experts. As a result, a large number of wells are completely scrapped every year because the tubular falling objects cannot be fished out, especially the high scrapping rate of water wells, which directly or indirectly affects the production of agriculture and industry, and causes considerable economic losses to the people and the country. and waste of manpower and resources. Contents of the invention [0003] The object of the present invention is to provide a device for fishing downhole tubular objects to solve the technical problem of diffic...
Claims
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IPC IPC(8): E21B31/20
CPCE21B31/20
Inventor 邢宝玉邢伟冬邢玉莹
Owner SUILING COUNTY MIAOYUAN WELL TECH CO LTD