复合压裂技术研究及应用

RESEARCH AND APPLICATION OF COMPLEX FRACTURING TECHNIQUE

杨宝君 回春兰

Yang Baojun Hui Chunlan

大庆石油管理局试油试采公司

复合压裂技术是将高能气体压裂与常规水力压裂相结合的一项新型增产、增注技术。探讨了复合压裂的造缝机理,给出了复合压裂的设计准则,分析了该技术对套管和水泥环的影响。对应用效果进行了分析。通过33口井的现场试验说明,该技术具有投资增加少、增产效果明显、技术风险小等优点,是低渗透油气藏改造的有效措施。

The complex fracturing technique is a new kind of stimulation technique hich can combine high energy gas fracturing with conventional hydraulic fracturing. This paper discussed the fracture initiation mechanism of complex fracturing technique, gave the design criteria of it and analyzed the effect of the technique on casing and cement. And the application effect was also analyzed. The field test of 33 wells showed that the technique had advantages of less additional cost, obvious effect of stimulation and small technical risk and so on, it is.an effective measure which can improve low-permeability oil-gas reservoir.

10.3969/j.issn.1000-7393.1998.01.018