39results about How to "Avoid clogging damage" patented technology

The invention discloses a novel agricultural water-saving regulator device for irrigation. Its structure includes a water-saving control valve, a connecting pipe, a connecting pipe, a fixed sleeve, and an interface. The right end of the water-saving control valve is welded to the left end of the connecting pipe. One end of the pipe is welded to the right end of the connecting pipe, and the other end is welded to the left end of the fixed sleeve. The interface is set in the middle of the fixed sleeve, and the two are integrated structures. When the valve is closed, an algaecide can be added in the water pipe to eliminate the algae in the water pipe and prevent it from adhering to the inner wall of the pipe to grow. This will cause the pipe to be blocked and damaged for a long time. At the same time, the connection of the pipe will be damaged. Reinforcement is carried out to prevent the pipeline from falling off due to the vibration of water transportation when the threaded part of the pipeline is damaged.

The invention discloses an environment-friendly oxidation-imbibition method for zero flowback of shale gas well fracturing fluid and improved recovery. In this method, oxidant is added to the fracturing fluid, and after the fracturing of the gas well, the shale and the oxidizing fracturing fluid are used to oxidize the organic matter on the fracture surface or pore surface, thereby increasing the contact area between the fracturing fluid and clay minerals, and improving the shale The imbibition ability of fracturing fluid enables the fracturing fluid in the fracture to imbibe and disperse into the pores, and the fracturing fluid in the pores dissolves organic matter and disperses into the intercrystalline pores of clay minerals, realizing zero flowback of fracturing fluid. The present invention uses oxidative fracturing fluid to improve the imbibition capacity of shale reservoirs, not only increases the effective seepage channel and gas desorption-diffusion capacity, but also avoids the environmental problems induced by fracturing fluid flowback, and returns to the shale gas well after shale gas well pressure. When the drainage is put into production, the oxidant trapped in the reservoir can continuously improve the shale gas transmission channel, which is conducive to realizing the low-cost and high-efficiency development goal of shale gas wells.

The invention discloses a cleaning device of a dendrobium nobile shaking screen. The cleaning device comprises a bracket and driving rolling brushes; three-layer rail plates are arranged on the bracket; each three-layer rail plate is provided with a first driving rolling brush, a second driving rolling brush and a third driving rolling brush from the bottom up sequentially; and the third driving rolling brushes are arranged in the corresponding three-layer rail plates in an upward inclining manner. The cleaning device is simple in structure and convenient to use, and can clean a screen mesh rapidly, the working efficiency is ensured, a cleaning process is simple and rapid, and the cleaning device is high in practicability and is convenient for popularization.