Aerogel particle reinforced foam generating device for oil field and application of aerogel particle reinforced foam generating device

Abstract

The invention discloses an aerogel particle reinforced foam generating device for an oil field and application of the aerogel particle reinforced foam generating device. The aerogel particle reinforced foam generating device for the oil field comprises an aerogel particle storing and conveying module, a gas-solid mixing module, a foam generating module and a foam gathering, conveying and distributing modul. According to the invention the gas-solid mixing module and the foam generating module can fully disperse aerogel particles in foam so as to generate uniform and stable aerogel particle reinforced foam, so the aerogel particle wrapping and carrying capacity of the foam is improved; an annular centrifugal tube and a separator can effectively prepare high-quality foam and reduce water consumption, so the consumption of water resources can be reduced, damage to the permeability of a water-sensitive reservoir can be reduced, and the difficulty of oil-water separation of produced liquid can be reduced; and excessive foam liquid obtained through centrifugation can be collected and reused, so the utilization rate of the foam is increased. The aerogel particle reinforced foam generating device can be used for preparing a foam modifying and flooding agent for oil reservoirs in an extra-high water cut period.

Description

technical field [0001] The invention relates to an airgel particle-enhanced foam generating device for oil fields and its application, and belongs to the field of fracturing equipment for unconventional oil and gas reservoirs such as shale oil gas, coal bed methane, and tight sandy conglomerate oil gas, as well as the technical field of profile control and oil displacement. Background technique [0002] Water-based foam is a typical gas-liquid two-phase fluid, which is used in the whole process of oil and gas development, such as foam drilling, foam fracturing, foam profile control and oil displacement, foam acidification, foam sand washing, foam induced spraying, etc. Wait. Foam has the characteristics of blocking large but not small, water and oil but not oil. It has strong fluidity control ability, low liquid content, and little damage to the formation. It is a selective clean fluid. However, the foam is inherently unstable, and there are unstable phenomena such as liqui...

AI Technical Summary

Problems solved by technology

However, it is difficult for hydrophobic and lipophilic airgel particles to be dispersed and carried into the reservoir by the water phase, and the method of dispersion and carrying by the oil phase is relatively expensive

However, there are currently no patents and research reports on airgel particle-enhanced foam generating devices.

Traditional foam generating devices only consider the full mixing of gas and liquid phases, but how to evenly disperse low-density, hydrophobic and lipophilic airgel particles in the foam is a new problem that needs to be overcome

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