NOVEL INORGANIC FINE PARTICLE ENHANCED FOAM SYSTEM FOR OIL-GAS FIELD AND PREPARATION METHOD THEREFOR

摘要

An inorganic fine particle enhanced foam system for an oil-gas field and a preparation method therefor. The enhanced foam system comprises a gas phase and a liquid phase, wherein the gas phase is nitrogen, carbon dioxide, or air, the liquid phase is prepared from the following raw material ingredients in percentage by mass: 0.2 to 0.8wt% of foaming agent, 0.5 to 2.0wt% of inorganic fine particles, and the balance of water, and the inorganic fine particles are fine particles which are captured and screened from atmosphere and of which the particle diameter is ≤2.5 μm. The enhanced foam system is not only aiding in efficient development of oil and gas resources, but also is capable of turning waste into wealth by utilizing inorganic fine particles, pollution brought to an air environment by inorganic fine particles can be reduced, the cost of raw materials is low, the preparation technology is simple, the operation cost is low, the production increment effect on oil and gas is good, and a high economic benefit is obtained.