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80年代国际上在压裂压力分析技术上有了很大的发展,特别是在压裂压力递减分析技术、压裂压力诊断技术和压力恢复分析技术等方面的研究成果,对压裂力学的认识在理论和方法上都有了新的开拓,这些技术的现场应用,使过去对裂缝贩种种假设与模似计算逐步成为可在现场直接测试的专门技术。本文简要介绍了上述三种分析技术的基本内容,并应用这些技术对陕北气区的酸化施工数据、酸化后压力递减数据及压力恢复数据进行诊断分析,探讨其适用性,并反过来验证酸化设计和酸化工艺的合理性,取得了很好的效果。
In the 1980s, there has been a great development in fracturing pressure analysis technology in the world, especially in the field of fracturing pressure reduction analysis technology, fracturing pressure diagnosis technology and pressure recovery analysis technology, understanding of fracturing mechanics Both new theories and methods have been developed. The on-site application of these technologies has enabled the past assumptions and simulations of crack traffic to gradually become the expertise that can be directly tested in the field. In this paper, the basic contents of the above three kinds of analytical techniques are briefly introduced. The acidification construction data, post-acidification pressure decrease data and pressure recovery data are analyzed and diagnosed by these techniques to explore the applicability of the three kinds of analysis techniques and to verify the acidification Design and acidification process is reasonable, and achieved good results.