复杂断块油田中的断层封堵性研究

Fault sealing study of complex fault block oilfield

本文以笔架岭复杂断块油田为例 ,在精细研究其断裂构造的基础上 ,应用断面图分析法、应力场分析法、断面两侧岩性封堵量及断层泥涂抹封堵量计算法、断裂封闭性模糊综合差别等方法 ,结合钻井、测井、岩心等资料 ,对笔架岭地区控制油藏形成的主干断层封堵性进行定性、定量研究 ;在此基础上 ,对断层封堵性与油气分布进行了分析 。

Based upon fine research of faulted structures with Bijialing faulted block as an example, sealing of main and key faults controlling oil reserve in the subject area is studied quantitatively and qualitatively by applying fault plane analysis, stress field analysis, lithologic sealing degree at both sides of fault plane, smear factor, fuzzy identification of fault sealing and the other methods, in combination with drilling, logging, core data. Effective progressive exploration and development methods for complex faulted block oilfield are summarized and listed after analyzing fault sealing and oil/gas distribution with reference to the above understandings.