Oil field fracturing system with antifreezing performance

Abstract

The invention discloses an oil field fracturing system with antifreezing performance. The oil field fracturing system comprises a clear water tank, a mixing vehicle, a buffer tank, a sand mixing vehicle, a fracturing device, a well mouth and a throttling manifold, wherein the outlet of the clear water tank is connected with the inlet of the mixing vehicle, the outlet of the mixing vehicle is connected with the inlet of the buffer tank, and the outlet of the buffer tank is connected with the inlet of the sand mixing vehicle, the outlet of the sand mixing vehicle is connected with an inlet of the fracturing device, a plurality of flanges are arranged at the well mouth, and one flange of the well mouth is connected with the throttling manifold, the other flanges of the well mouth are connected with the outlet of the fracturing device, and the outlet of the throttling manifold flows back to the clear water tank to form a closed circulation system. The oil field fracturing system has the beneficial effects that the liquid can be rapidly heated by adopting a steam automobile, so that the guanidine gum is fully swelled; and when there is no construction at night, the normal operation of the equipment is guaranteed by adopting the full-pipeline circulation and heat preservation, the pipeline is prevented from being disassembled, and equipment freeze-plugging is prevented.

Description

technical field [0001] The invention relates to the field of oilfield fracturing, in particular to an oilfield fracturing system with antifreeze performance. Background technique [0002] In winter, the weather is cold, the temperature of the liquid is low, the cross-linking is not good, and the freezing causes equipment and pipeline ice blockage, resulting in safety accidents. In order to ensure the safety of oil field production, "winter rest" is often selected. If construction is required for special reasons, electric heating rods and hot oil are often used. The wax melting car heats the liquid, the liquid tank is insulated with insulation cotton, and the heating belt is used to heat the pipeline and equipment. However, in cold winter conditions, the thermal insulation effect of the insulation cotton is extremely poor. In the case of large displacement construction, the heating effect of the electric heating rod and the hot oil wax melting car is negligible. Make the gua...

AI Technical Summary

Problems solved by technology

However, in cold winter conditions, the thermal insulation effect of the insulation cotton is extremely poor. In the case of large displacement construction, the heating effect of the electric heating rod and the hot oil wax melting car is negligible. Make the guar gum adhere to the surface, the temperature is too high, and the electric heating rod burns out

During the construction process, the swelling effect of guar gum is poor, and multiple hot oil melting cars and several heating rods are required

At the same time, when there is no construction at night, the antifreeze of fracturing equipment and pipelines can only be partially circulated and the pipelines are dismantled. The above method is time-consuming and laborious, and the effect is not good.

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