泡 泡 沫流体反循环洗井携屑能力影响因素研究.

In order to study the influence factors of particle carrying capacity of foam fluid during the reverse circulation washing process, a model of reverse circulation well washing by foam fluid was established based on finite element method. The influence of injection temperature and foam quality on the particle carrying capacity of foam fluid was analyzed. The numerical simulation results show that the injection temperature of foam fluid increases from 15 °C to 80 t, the carrying rate decreases by about 7. 3%. The foam quality of foam fluid increases from 0. 65 to 0.95, the particle carrying rate increases by about 8. 3%. The results show that the particle carrying capacity of foam fluid decreases with the injection temperature increase during the reverse circulation washing process of foam fluid. The foam quality of foam fluid has a greater influence on the particle carrying capacity than the injection temperature. The viscosity is an important factor to determine the particle carrying capacity of foam fluid when other conditions are unchanged. [ABSTRACT FROM AUTHOR]