Drilling fluid cleaning system device

Abstract

The invention discloses a drilling fluid purifying system and a device thereof, which are used for the circulating purification and ground configuration of the drilling fluid in the drilling operations of petroleum, geological exploration and non-excavation and the like. The drilling fluid purifying system and the device comprise an initial processing tank and a post processing tank which are provided with vibrating screens, deaeration devices, desanders, desilters and centrifugal machines as well as a slurry mixing tank provided with a mixing funnel, a central suction pipe penetrating through each bin of the tank is respectively arranged in the inner cavity of each tank, a main spraying pipe communicated with each bin of the tanks is arranged outside the tanks, a bottom suction pipe communicated with each bin of the tanks is arranged below the tanks, slurry dividing pipes connected to the mixing funnel are arranged at the top of the slurry mixing tank and the adjacent tank, a drilling fluid output pipe is arranged at the rear end of the system, the central suction pipe and the bottom suction pipe of each tank are connected into the suction end of a sand pump of each tank, the main spraying pipe of each tank and the related equipment on the tank top are connected into the paralleled discharging pipes of the sand pump, and the sand pump of each tank or each tank is respectively connected with the discharging ends of other sand pumps in parallel through the main spraying pipes. The invention aims to solve the defects of bad mixing uniformity, low efficiency and much sediment in the existing purifying device by utilizing a reasonable structure.

Description

technical field [0001] The invention relates to the circulation and purification of drilling fluid for drilling operations such as petroleum, geological exploration, and non-excavation, and can also be used for ground preparation of the drilling fluid for these operations. Background technique [0002] At present, the drilling fluid purification system devices used in the above fields at home and abroad generally consist of a primary treatment tank and a post-treatment tank with a vibrating screen, a degasser, a desander, a desilter, and a centrifugal separator installed on the top, and a mixing funnel is installed. The mud mixing tank and the storage tank to be added according to the needs are arranged according to the process route. There are mud tanks and pipelines connecting each tank. The tank body is a horizontal cuboid tank with a compartment. Equipped with blade stirrer. When the system is working, the drilling fluid from the well is dragged by the sand pump and pur...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to improve the existing drilling fluid purification system device, by studying and solving the mud mixing mode and structural design, the defects of poor mixing uniformity, low efficiency, serious sedimentation and unreasonable structural layout of the device exist be overcome

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