Recovery and reuse equipment for oil-based drilling fluid

Abstract

The invention discloses an oil-base drilling fluid recycling device which comprises a screen box, a vibration motor and a supporting plate. A feed port is formed in the upper portion of one end of the screen box. A solid phase discharge port is formed in the other end of the screen box. A screen frame is arranged in the screen box. A screen is arranged in the screen frame. A liquid phase discharge box communicated with the screen box is arranged below the solid phase discharge port. A liquid phase discharge port is formed in the bottom of the liquid phase discharge box. A suction pipe is connected with the side face of the liquid phase discharge box and connected with a suction fan. A plurality of spring baffle devices are arranged on the screen frame at equal intervals in the direction from the feed port to the solid phase discharge port. After drilling fluid hits the screen, the liquid phase separated from solid phase particles more easily enters the position below the screen, the screen can not be blocked, the processing amount of the drilling fluid vibration screen for drilling fluid is increased, loads on the screen are reduced, hitting impact force is increased by gas flow when the drilling fluid hits the screen, and the solid phase particles and the liquid phase are more easily separated.

Description

technical field [0001] The invention relates to the field of drilling fluid recovery, in particular to recovery and reuse equipment for oil-based drilling fluid. Background technique [0002] Drilling fluid is a general term for various circulating fluids used in the drilling process, and drilling fluid is also called drilling mud. During the drilling process, the drilling fluid can effectively cool and lubricate the drill bit, and can also balance the underlying pressure to avoid blowout and kick. In addition, the drilling fluid can also transmit power and take coring samples. According to different dispersion media, drilling fluids are mainly divided into three categories: water-based drilling fluids, oil-based drilling fluids and gas-based drilling fluids. [0003] During the drilling process, the drilling fluid enters the bottom layer through the drill pipe, and after completing its function, it is discharged together with the slag generated in the drilling. Because the...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is aimed at the shortcomings of the traditional drilling fluid shale shaker, the purpose is to provide recovery and reuse equipment for oil-based drilling fluid, and solve the problem that the drilling fluid is easy to remain on the screen during the screening process of the traditional drilling fluid shale shaker Problems in the sieve holes that lead to the loss of recoverable liquid phase in the drilling fluid, the reduction of the processing capacity of the drilling fluid shale shaker and the easy damage to the screen

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