Pretreatment device for well repair operation
A pretreatment device and workover technology, which is applied in wellbore/well components, cleaning tools, earthwork drilling and production, etc., and can solve problems such as falling down the bottom of the well, accumulation of foreign objects at the bottom of the well, and poor force application
Inactive Publication Date: 2017-08-04
合肥市规划设计研究院
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Problems solved by technology
[0002] In the process of municipal construction, a large number of well-shaped structures will be built to facilitate the management of urban underground water supply and drainage. During use, it is inevitable that foreign objects will naturally fall to the bottom of the well or other artificially thrown objects will cause accumulation of foreign objects at the bottom of the well, affecting related production work
[0003] Most of the existing overshots use the clamping method, but when blocked by foreign objects at the bottom of the well, the clamping method is not only difficult to apply force, but also easy to damage the clamp or even fall to the bottom of the well, which is not worth the candle
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0025] see Figure 1~4 , a pretreatment device for well workover operations, comprising a fixed seat 1, a rotating motor 2, a telescopic rod 3, a connecting rod 4 and a base 5; the fixed seat 1 is installed on the wellhead, and the rotating motor 2 is installed on the fixed seat 1; The telescopic rod 3 is arranged in the well, one end is connected to the motor rod 201 of the rotating motor 2, and the other end is connected to the base 5, which plays the role of con...
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The invention relates to the technical field of municipal construction tools, in particular to a pretreatment device for well repair operation. The pretreatment device for well repair operation comprises a fixing base, a rotating motor, a telescopic rod, a connecting rod and a base. The fixing base is arranged on a well opening, the rotating motor is arranged on the fixing base, the telescopic rod is arranged in a well, one end of the telescopic rod is connected with a motor rod of the rotating motor, and the other end of the telescopic rod is connected with the base. The fixing seat is provided with a plurality of circles of circumferential slide grooves, and transverse slide grooves are also formed among the circumferential slide grooves. A groove is formed in the side wall of the base, an adjusting plate is arranged in the groove, the outer end of the adjusting plate is connected with a cutter, a connecting rod is connected to the upper portion of the adjusting plate, and the connecting rod passes through the circumferential slide grooves and penetrates through the fixing base. The pretreatment device for well repair operation adopts the rotating motor to drive the cutter of the base plate to rotate and cuts foreign matter stuck at the bottom of a well, and the problem that the foreign matter is stuck at the bottom of the well is effectively solved. In addition, the cutter position is convenient to adjust, and the pretreatment device is suitable for wells different in diameter or removal of foreign matter different in position and facilitates follow-up clearing.
Description
technical field [0001] The invention relates to the technical field of municipal construction tools, in particular to a pretreatment device for well workover operations. Background technique [0002] In the process of municipal construction, a large number of well-shaped structures will be built to facilitate the management of urban underground water supply and drainage. During use, it is inevitable that foreign objects will naturally fall to the bottom of the well or other artificially thrown objects will cause accumulation of foreign objects at the bottom of the well, affecting related production work. [0003] Most of the existing overshots use the clamping method, but when they are hindered by foreign objects at the bottom of the well, the clamping method is not only difficult to apply force, but also easy to damage the clamp or even fall to the bottom of the well, which is not worth the candle. Contents of the invention [0004] (1) Solved technical problems [0005...
Claims
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IPC IPC(8): E21B37/02
CPCE21B37/02
Inventor 陈波方韬
Owner 合肥市规划设计研究院