Mixing tank for fracturing sand mixing equipment

Abstract

The invention discloses a mixing tank for fracturing sand mixing equipment. The mixing tank comprises a main tank body with an opening formed in the top, wherein a liquid inlet pipe is arranged at thetop of the main tank body and communicated with the main tank body, a V-shaped flow channel is formed in the bottom of the main tank body, a liquid outlet pipe is communicated with the bottom of theV-shaped flow channel, an upper support is horizontally and fixedly connected to the top of the main tank body, one side of the main tank body is communicated with a sand collecting hopper, an annularflow channel is formed in the main tank body, the main tank body is integrally of a single-layer structure, and base liquid flows in from one or more liquid inlet pipes on the side face of the top ofthe main tank body, enters the closed annular flow channel after being divided by a partition plate, and then flows out of the flow guide hole of the lower sealing plate to enter the tank body to befully mixed with sand conveyed by the sand collecting hopper; vertical guide plates are arranged on the inner wall of the main tank body; a guide cylinder is arranged at a bottom center outlet of themain tank body; and a flow dividing channel can be connected to the lower portion of the main tank body to divide the output fracturing fluid into one or more liquid outlet pipes. The mixing tank provided by the invention can improve the uniformity of the fracturing fluid under a large-displacement working condition and improve the quality of fracturing construction.

Description

technical field [0001] The invention belongs to the technical field of oil field fracturing equipment, and in particular relates to a mixing tank used for fracturing sand mixing equipment. Background technique [0002] In recent years, the domestic shale gas exploitation has continued to heat up, and the demand for large-scale fracturing equipment is increasing day by day. Sand mixing equipment is the core of fracturing equipment, and its main function is to control the base fluid and proppant with high precision, form a uniformly mixed fracturing fluid, and then supply it to fracturing vehicles for downhole fracturing operations. As the amount of fluid and sand required for a single fracturing operation continues to increase, high-volume, high-quality fracturing fluid has become the key to sand mixing equipment, which directly affects the effect and quality of fracturing operations. As an important component of sand mixing equipment, the mixing tank is mainly used to ensur...

AI Technical Summary

Problems solved by technology

At present, the structural design of the existing mixing tank is unreasonable, resulting in too fast inflow of base liquid, high-speed eddy current, difficulty in controlling the liquid level, easy overflow of the tank and uneven mixing, etc., which cannot efficiently provide large displacement according to the construction requirements , high-quality fracturing fluid

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