Automatic drilling rod screw thread sealing grease spraying device and method

Abstract

The invention relates to an automatic drilling rod screw thread sealing grease spraying device and a method. According to the technical scheme, the automatic drilling rod screw thread sealing grease spraying device is characterized in that a spraying mechanism is connected to the outer end of a vertical hydraulic lifting transfer mechanism; the vertical hydraulic lifting transfer mechanism is connected to the outer end of a horizontal hydraulic transfer mechanism; a control mechanism, together with the horizontal hydraulic transfer mechanism, the vertical hydraulic lifting transfer mechanism and a sealing grease pneumatic control mechanism, is fixed to a hydraulic power tongs suspension arm; and by controlling the movement of the horizontal hydraulic transfer mechanism and the vertical hydraulic lifting transfer mechanism through the control mechanism, the spraying mechanism is transferred to a to-be-sprayed drilling rod male button or female button for locating, and a sealing grease of a sealing grease storage tank is sprayed to the drilling rod male button or female button through the sealing grease pneumatic control mechanism. The operation process is quick and convenient, the spraying is timely and uniform, and the spraying quality of drilling rod sealing grease can be improved, so that the drilling rod screw thread can be sealed effectively, the labor intensity of workerscan be reduced, the operation progress and effectiveness can be improved, and potential safety hazards are eliminated.

Description

technical field [0001] The invention relates to the technical field of drilling equipment, in particular to an automatic spraying device and method for sealing grease on drill pipe threads. Background technique [0002] With the development of automation of drilling construction operations and the requirements of standardization, drilling equipment and most drilling tools have realized automatic and semi-automatic operations. However, in the drilling construction operations, especially in the single drilling operation of running in and connecting drill pipes, the application of sealant for drill pipe threads is very important. First, if the spraying is not timely, it may delay the time of the drill pipe in the well. If the drill pipe stays in the territory for too long, it will lead to complex situations downhole, and even accidents such as "drill sticking". The workman is difficult to carry out the smearing of sealing grease near the drill pipe joint, and the 3rd, still ca...

AI Technical Summary

Problems solved by technology

However, in the drilling construction operations, especially in the single drilling operation of running in and connecting drill pipes, the application of sealant for drill pipe threads is very important. First, if the spraying is not timely, it may delay the time of the drill pipe in the well. If the drill pipe stays in the territory for too long, it will lead to complex situations downhole, and even accidents such as "drill sticking". It is difficult for workers to get close to the drill pipe joint to apply sealant. Third, workers still manually apply sealant

The manual application of sealing grease is greatly affected by human factors, and there will be problems of uneven application or poor application quality due to the difficulty of workers getting close to the back drilling fluid, so that the drill pipe thread cannot be effectively protected, resulting in the drill pipe thread. If the seal is not tight, the drill pipe thread will be pierced and leak, which will affect the service life of the drill pipe. Fourth, the manual application of sealing grease will also increase the labor intensity of the workers, posing safety hazards, low work efficiency, and slow operation progress, which will affect the drilling efficiency.

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