The fractures of Palaeozoic buried hill reservoir in Futai oilfield mostly developed in Yanshan period, mainly high-angle fractures.

• 富台油田古生界潜山油藏裂缝主要发育在燕山期,以高角度裂缝为主,裂缝横向上主要受构造控制,在背斜顶部或高点较为发育;