Fiber material dispersion method and fiber material dispersion apparatus

Abstract

The present invention provides a fiber material dispersion method and a fiber material dispersion apparatus, and relates to the technical field of fiber fracturing and fiber sand prevention. According to the fiber material dispersion method, a fiber material is spirally conveyed while the fiber material is subjected to primary stirring dispersion, the fiber material obtained after the primary stirring dispersion is subjected to complete blowing dispersion under the action of wind, the obtained fiber material is conveyed forward along with a gas flow, the mixed gas flow is separated, the dispersed fiber material falls down, and the dispersed fiber material rapidly settles under the action of water so as to complete the uniform dispersion. Compared to the fiber dispersion method in the prior art, the fiber material dispersion method of the invention has the following characteristics that the tightly continuous four steps such as spiral conveying, fiber mixing with wind, gas and material separation, and rapid settling are used in the fiber material dispersion method, such that the fiber material can be rapidly and uniformly dispersed, the construction risk is reduced, the use effect of the fiber during the fracturing construction process is improved, and the practicality is extremely strong.

Description

technical field [0001] The invention relates to the technical field of fiber fracturing and fiber sand control, in particular to a fiber material dispersion method and a fiber material dispersion device. Background technique [0002] At present, in order to fundamentally solve the problem of sand production caused by the backflow of proppant after fracturing in low-pressure and medium-low permeability reservoirs in oil fields, or the excessive production pressure difference in the process of loose mining of oil reservoirs, so as to reduce the damage caused by sand production in oil reservoirs Mechanical failure or sand washing workload. Starting from the mechanism of sand production and sand control, the researchers selected the fiber composite and coated sand suitable for the physical properties of the oil layer through research and experiments, and optimized the fracturing operation parameters. Sand control in deep formations, followed by sand coating in the later stage t...

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Problems solved by technology

[0003] Therefore, fibers play a very good role in solving sand production in fracturing wells in oil and gas reservoirs and improving reservoir stimulation effects. However, if the fibers used for sanding are not pre-dispersed before use, the dispersion effect in the fracturing fluid will be affected, which may lead to The performance of suspended sand is not good, and it is easy to cause sand plugging during construction

The inventors have found that the current fiber fracturing construction mainly uses manual methods to pre-disperse the fibers in the early stage, which will cause uneven fiber concentration, and the amount of fiber added during the fracturing process is locally too high, which increases the construction risk and greatly reduces The effect of using fiber in the process of fracturing construction

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