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针对火山岩储层压裂改造过程中裂缝形态复杂的问题,采用较为先进的井下微地震水力裂缝监测技术对压裂裂缝进行了2口井的监测。结果表明,火山岩储层压裂过程中裂缝的扩展规律与砂岩油藏有很大不同,裂缝形态复杂,具有水平缝、多裂缝等特征,而且容易造成缝高延伸过度。因此,在压裂设计中要充分考虑,结合应用缝高控制技术,增加裂缝的长度,提高压裂改造的效果。下一步还需要继续开展火山岩地层压裂裂缝的监测,认识裂缝的延伸和产状,为优化压裂设计和井网部提供指导。
Aiming at the complicated fractures in the process of fracturing in volcanic reservoirs, a more advanced monitoring technology of fractured fractures in the fractures was monitored by using the more advanced monitoring technology of fractures. The results show that the law of fracture propagation in volcanic reservoirs is quite different from that of sandstone reservoirs. The fractures are complicated in shape and have the characteristics of horizontal seam and multiple fractures, and tend to cause excessive extension of seam height. Therefore, in fracturing design should give full consideration to the application of seam height control technology, increase the length of cracks and improve the effect of fracturing. The next step also needs to continue the monitoring of fracturing fractures in volcanic strata and understanding the extension and occurrence of fractures to provide guidance for optimizing fracturing design and well patterning.