An electric drive fracturing fluid continuous mixing skid

Abstract

The invention provides an electric-driven fracturing fluid continuous mixing skid, which includes a double loss-in-weight metering and feeding unit, a hydration unit, a mixing unit and a programmable controller. The unit is equipped with a weightless metering device. The hydration unit includes a mixing tank. The lower end of the mixing tank is provided with a discharge manifold. There is a discharge flowmeter on the discharge manifold; the programmable controller is connected to the weightless metering device and the water supply flowmeter, and is connected to the electric water supply pump and the electric discharge pump at the same time to regulate the speed of the electric water supply pump and the electric discharge pump to reduce the loss of weight. The flow rate of the upper water and the upper water meets the powder-liquid ratio; there is a liquid level gauge in the mixing tank, and the programmable controller is connected to the liquid level gauge and the electric discharge pump to regulate the speed of the electric water supply pump and the electric discharge pump to maintain the liquid level at on the set parameters.

Description

technical field [0001] The invention relates to the technical field of liquid preparation for oil and gas field fracturing construction, in particular to an electric drive fracturing fluid continuous mixing skid. Background technique [0002] With the popularization of hydraulic fracturing in oil field stimulation and shale gas exploitation, the amount of fracturing fluid required for one fracturing is increasing. The traditional fracturing fluid continuous mixing skid uses a diesel engine as the power source and completes the mixing work through a hydraulic system. This technical solution has high noise, large emissions, high energy consumption, complex control system and low accuracy of mixing ratio parameters. , which directly affects the quality of fracturing construction. At present, there are two mixing formulas in the same fracturing section, and two kinds of powders need to be mixed and switched quickly. [0003] Traditional mixing sleds have a low degree of automa...

AI Technical Summary

Problems solved by technology

[0003] Traditional mixing sleds have a low degree of automation and generally require manual on-site control, which not only consumes a lot of human resources, but also makes it difficult to manually adjust the operation and mixing data of the mixing sled in real time according to the operation and mixing conditions of the mixing sled , thereby increasing the risk of mixing

Moreover, the traditional mixing skid only has one powder storage tank, which cannot quickly switch from mixing one kind of powder to mixing another kind of powder

At the same time, due to the large mixing capacity, the powder in the powder storage tank cannot be supplied for a short time after consumption, and it is necessary to stop the machine to add powder to the powder storage tank, resulting in the mixing operation being unable to continue for a long time and affecting the entire fracturing operation

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