摘要
为避免由非裂缝因素引起单个裂缝参数响应所导致的裂缝储层误判,综合考虑裂缝参数对裂缝发育等级划分进行研究。对裂缝分维、裂缝概率、裂缝孔隙度和次生孔隙度等4个参数进行了深入研究。给出这4个参数的计算公式,通过对比分析得出裂缝发育的分级标准,将4个参数相结合对裂缝发育程度进行等级划分。依据裂缝发育的划分标准对邛西A井致密砂岩储层裂缝参数进行评价,评价结果与成像测井识别的裂缝符合率为72%,取得了较好的效果。
In order to avoid fractured reservoir misjudgment of the responses resulted from single fractures parameter due to non-fracture factors, we propose a new method to classify fracture growth by combining 4 fracture growth parameters. The four fracture parameters, such as fracture fractal dimension, fracture probability, fracture porosity and secondary porosity, are studied in detail. Firstly, calculation formula of above four parameters is stated. Then classification standard of the fracture growth can be got through contrast. Finally, the fracture growth is comprehensively evaluated by these four parameters. Practical application of this method in tight sandstone reservoir of Qiongxi A well shows good result. Comparing with imaging logging evaluation result, the fracture classification accordance rate reaches 72%.
出处
《测井技术》
CAS
CSCD
北大核心
2013年第4期393-396,共4页
Well Logging Technology
基金
国家重大科技专项复杂含油气盆地构造及其控油气作用(2008ZX05009-001)
关键词
测井解释
裂缝分维
裂缝概率
裂缝孔隙度
次生孔隙度
裂缝发育
log interpretation, fracture fractal dimension, fracture probability, fracture porosity, secondary porosity, fracture growth
