Screening equipment for oil-based drilling fluid solid control equipment based on moving baffles

Abstract

The invention discloses a moving baffle based screening device of oil-based drilling fluid solid control equipment. The screening device comprises a screen frame and a screen, a guide rail and a fixed baffle are arranged on the screen frame sequentially, the longer side of the bottom surface of the fixed baffle is perpendicular to the screen frame, a slider is arranged on the guide rail, the moving baffle is mounted on the slider and parallel to the fixed baffle, a sleeve is mounted on the side face, facing the fixed baffle, of the moving baffle and is perpendicular to the moving baffle, a spring and a supporting rod are arranged in the sleeve, a spring is connected to one end, positioned in the sleeve, of the supporting rod, and the other end of the supporting rod is fixed on the fixed baffle. The moving baffle based screening device of the oil-based drilling fluid solid control equipment has the advantages that the device enables a liquid phase and a solid phase in drilling fluid to be further separated from each other, so that screening effect is strengthened, loss of the circulating liquid phase is caused by the fact that the liquid phase in the drilling fluid moves to a screen outlet along with the solid phase when not separated from the solid phase during screening is avoided, use cost of the drilling liquid is reduced and environmental protection is achieved.

Description

technical field [0001] The invention relates to the field of drilling fluid recovery, in particular to screening equipment for oil-based drilling fluid solid control equipment based on a mobile baffle. 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 sla...

AI Technical Summary

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 screening mechanism. During the process, the solid phase particles and the liquid phase leave the screen before they can be separated, resulting in the loss of the recoverable liquid phase in the drilling fluid.

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