Seaborne continuous blending device for fracturing fluid

Abstract

The invention relates to a seaborne continuous blending device for fracturing fluid. The seaborne continuous blending device is characterized by comprising a coaxial bidirectional agitating device, a first filling pump, a second filling pump, a multi-grade spiral grinding pump, an air pressure multi-head spraying and mixing device, a measuring device, a refilling pipeline and a solenoid valve, wherein the coaxial bidirectional agitating device is used for shearing and cutting a thickening agent and the fracturing fluid to obtain a mixed solution of the thickening agent and the fracturing fluid; the mixed solution is pumped into the spiral grinding pump by the first filling pump and then enters the air pressure multi-head spraying and mixing device after being grinded by the spiral grinding pump; the mixed solution of the thickening agent and the fracturing fluid, and seawater are sprayed and mixed in the air pressure multi-head spraying and mixing device; according to displacement data of measuring the configured fracturing fluid and the demanded quantity of the fracturing fluid in the seaborne work, one part of the configured fracturing fluid passes through the measuring device to enter the second filling pump and then is pumped into a shaft; the other part of the configured fracturing fluid is returned back into the coaxial bidirectional agitating device by the refilling pipeline through controlling the solenoid valve on the refilling pipeline.

Description

technical field [0001] The invention relates to a fracturing fluid mixing device for offshore low-permeability oil and gas fields, in particular to an offshore fracturing fluid continuous mixing device. Background technique [0002] The development of low-permeability oil and gas fields mainly adopts fracturing technology to stimulate oil layers. At present, the technology for fracturing operations in onshore oil fields is relatively mature. The key to the success of fracturing operations depends largely on the quality of fracturing fluid. The main method to improve the quality of fracturing fluid is to improve the performance of thickener and improve the mixing process. In recent years, a lot of energy has been invested in the study of thickeners in order to improve the performance of thickeners. After 2003, the performance of mixing equipment used on land has also been greatly improved. Continuous mixing equipment and construction schemes have basically matured. gradually...

AI Technical Summary

Problems solved by technology

At present, offshore fracturing fluids are mixed in batches in advance, which makes it impossible to achieve continuous mixing

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