In view of the high risk, low success ratio and poor effect of ultra-deep reservoir fracturing, the state of the art of ultradeep well fract.

• 压裂是低渗透储层最具进攻性的增产措施,然而超深井压裂改造的成功率和有效率低,压裂改造技术已成为制约超深致密储层能否有效开采的瓶颈技术。