Powder fracturing fluid continuous blending method

Abstract

The invention provides a powder fracturing fluid continuous blending method. The method comprises conveying powder into a material hopper, installing a spiral powder relaxer in the material hopper sothat materials are easy to discharge, installing a weight loss compensation sensor at a discharge port of the material hopper, accurately measuring the total amount of powder in the material hopper inreal time, feeding the powder into a spiral feeder through a pipe, electrically connecting the spiral feeder and the weight loss compensation sensor, feeding back to a control system so that precisefeeding is realized, connecting a discharge port of the spiral feeder to a side port of an ejector, respectively connecting an inlet and an outlet of the ejector to a first water inlet main pipe and asecond water inlet main pipe, sucking the powder into the ejector under a vacuum suction force produced by a high-rate water flow, mixing the powder and clear water, diluting the solution through thesecond water inlet main pipe until an appropriate concentration, conveying the solution into a blending system, carrying out uniform stirring, carrying out viscosity adjustment, and conveying the solution to the next process section. The method greatly improves the accuracy of powder weighing, improves the automation degree and reduces a production cost.

Description

technical field [0001] The invention relates to the technical field of fracturing in oil field operations, in particular to a continuous mixing process for powder fracturing fluid. Background technique [0002] In recent years, with the introduction of fracturing fluid continuous mixing method and equipment (Hydration Unit), great progress has been made in oil fracturing technology, which can effectively avoid the waste of materials caused by batch preparation on the job site, and can reduce The degree of pollution to the environment by the operation. Today, more and more fracturing operations use real-time continuous mixing technology. Many of these operations employ continuous mixing of concentrated fracturing fluid and water. But since concentrated fracking fluids use diesel or mineral oil as solvents, the heavy use of these solvents still puts a strain on the environment. Because of the consideration of environmental protection, the process of continuous mixing of dry...

AI Technical Summary

Problems solved by technology

However, the preparation of powder fracturing fluid by this process has many defects such as low degree of automation, low production efficiency, and high production cost.

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