Swelling technology for carrying out fracturing construction on fiber

Abstract

The invention belongs to the technical field of fracturing construction in development of petroleum and gas and more particularly relates to a swelling technology for carrying out fracturing construction on fiber. The swelling technology is characterized in that high-pressure air forms negative pressure through an air jet sprayer and sucks bundle fiber; the bundle fiber is metered by volume by a metering screw pump and swelled by the air jet sprayer to form silky fiber; the silky fiber is blown away into a fracturing mixing tank by using air flowing at high speed in the negative area and is mixed with sandy fluid according to proportions; and the mixed fiber and sandy fluid and fracturing fluid are pressed into an oil and gas reservoir to carry out fiber fracturing construction. A swelling technology device for carrying out fracturing construction on the fiber consists of a fiber hopper, a frequency-conversion speed-adjusting motor, a metering screw pump, an air jet mixer, a corrugated pipe, a throttle and the fracturing mixing tank. According to the swelling technology for carrying out fracturing construction on the fiber, the negative pressure area is formed by using high-speed air, and the fracturing construction is carried out after the bundle fiber are converted into the silky fiber.

Description

technical field [0001] The invention belongs to the technical field of oil and gas development and fracturing construction, and relates to the expansion technology of fibers for fracturing construction. Background technique [0002] Fiber fracturing technology to prevent proppant backflow is a new fracturing technology emerging at home and abroad in recent years. The main method is to mix monofilament fibers in fracturing fluid during fracturing construction, The proppant is added to the oil and gas layer together, so that the proppant in the fracture will discharge the liquid in the well after fracturing; or in the production process of a conventional oil and gas well, the proppant will be wrapped to prevent it from being discharged with the liquid produced in the well Outside the well, the support effect of the proppant on the fracture becomes lower, which affects the long-term and effectiveness of the fracturing support effect. [0003] At present, the research and test ...

AI Technical Summary

Problems solved by technology

[0003] At present, the research and test on fracturing fibers at home and abroad have basically become mature, and fibers suitable for oil and gas well fracturing can also be produced, but the fibers produced are all bundled fibers rather than filamentous fibers. The technology of puffing bundled fibers into filamentous fibers is kept secret at home and abroad, and neither patents nor technical exchanges are made.

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