Automatic shearing filter screen device applied to emulsion conveying pipeline in fracturing construction

Abstract

The invention discloses an automatic shearing filter screen device applied to an emulsion conveying pipeline in fracturing construction, and belongs to the field of oil and gas field development. The automatic shearing filter screen device applied to the emulsion conveying pipeline in fracturing construction comprises a main pipe assembly and a filter box communicating with one end of the main pipe assembly, a filter screen is fixedly installed at the joint of the interior of the filter box and the main pipe assembly, a pressure sensor and a speed sensor are arranged in the main pipe assembly, the end, away from the main pipe assembly, of the filter box communicates with a feeding pipe, and two sets of shearing blades are symmetrically arranged on the side, connected with the main pipe assembly, of the interior of the filter box. The minimum distance between the shearing blades and the filter screen is 1mm. The device can realize and reduce the viscosity value of fracturing fluid in the main pipe assembly, and the fracturing fluid can conveniently pass through the filter screen, so that the pumping pressure of the fracturing fluid in the main pipe assembly is reduced, the condition that the interior of the filter box is blocked is reduced, and the condition that the pumping of emulsion is forced to be interrupted is prevented.

Description

technical field [0001] The invention relates to the field of oil and gas field development, and more specifically relates to an automatic shearing filter screen device applied to emulsion conveying pipelines in fracturing construction. Background technique [0002] Fracturing fluid is often used in fracturing construction, and emulsion fracturing fluid is one of them. Emulsion is an emulsified system formed by two mutually incompatible phases through a specific emulsifier. It has a low viscosity and can flow at room temperature. The fine droplets of one of the liquids are evenly dispersed in the other liquid, the former is called the dispersed phase, and the latter is called the continuous phase. [0003] The viscosity of the emulsion system tends to increase rapidly during the fracturing operation, which increases the pumping pressure of the emulsion, thereby reducing the continuity of the emulsion pumping, resulting in a low or uneven pumping ratio of the emulsion, and th...

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Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the object of the present invention is to provide an automatic shear filter screen device applied to the emulsion delivery pipeline in fracturing construction, which can reduce the viscosity value of the fracturing fluid in the main pipe assembly, which is convenient The fracturing fluid passes through the filter screen, which reduces the pumping pressure of the fracturing fluid in the main pipe assembly, reduces the occurrence of blockage inside the filter box, and prevents the forced interruption of emulsion pumping

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