Sectional type ultrahigh-pressure large-flow circulation system

The invention discloses a sectional type ultrahigh-pressure large-flow circulation system which comprises a fidelity corer cabin, a first-section heating and boosting internal circulation subsystem, a second-section filtering and boosting circulation subsystem and a third-section heating subsystem. By arranging the first-section heating and boosting internal circulation subsystem and the second-section filtering and boosting circulation subsystem, water with different impurity conditions is treated, and directly recyclable water is treated by adopting the first-section heating and boosting internal circulation subsystem; and the water which cannot be directly circulated is treated by adopting the second-section filtering boosting circulation subsystem, and the water under different conditions is treated in sections, so that on one hand, the treatment efficiency is improved, and on the other hand, the cyclic utilization of the water is also realized. 本发明公开了一种分段式的超高压大流量环流系统，包括：保真取芯器舱体、第一段升温升压内循环子系统、第二段过滤升压循环子系统