迪那高压气藏压裂施工难点及对策

Difficulties and solutions of fracturing in DN high pressure gas reservoir

迪那属于常温超高压凝析气藏,储集岩以粉砂岩、细砂岩为主,属于低孔低渗储层,并发育有一定的天然裂缝。在投产前通过压裂改造为获取更大的产能。为此,概述了迪那气藏的储层特点,分析了水力压裂的难点,对此提出了相应的对策。

DN is ambient temperature ultrahigh pressure condensate gas reservoir.The reservoir rocks are mainly siltstone and fine sandstone with low porosity and low permeability,where some natural fractures grow.Hydraulic fracturing helps to obtain greater capacity before the pre-production.This paper describes the characteristics of Dina gas reservoir and the difficulties in hydraulic fracturing to offer solutions.