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随着南襄盆地勘探开发程度的提高,一些低于正常油气层录井解释评价标准的油气弱异常显示层屡获工业油流,引起了甲乙双方对录井显示的广泛关注。针对这一情况,在简介南襄盆地勘探开发现状的基础上,从录井、钻井和地层地质的角度出发,阐述了油气弱异常显示的成因,认为油气弱异常显示的主要因素是地层地质因素,其次是钻井因素,再次是录井因素,而一般条件下是几种因素共同作用的结果;以该分析结果为基础,探讨了针对不同开发阶段、不同区块、不同层系特点结合不同井型应用不同录井技术的优化原则,对于以岩屑为分析对象的录井技术,应由关注岩屑的分析信息向更多地关注钻井液的信息方向发展,通过发挥不同录井技术优势、相互补充并不断探索与应用新技术,及时发现油气异常,准确解释评价油气层。
With the improvement of the degree of exploration and development in Nanxiang Basin, some weak oil and gas anomalies show layers that are lower than the normal oil and gas reservoir logging interpretation and evaluation standards, and have repeatedly caught the industrial oil flow. In view of this situation, based on the brief introduction of the current exploration and development status of Nanxiang Basin, the causes of the weak anomaly of oil and gas are expounded from the perspective of logging, drilling and formation geology. The main factor that indicates the weak anomaly of oil and gas is the formation geology , Followed by drilling factors, again logging factors, and under normal conditions is the result of several factors together; based on the results of the analysis, discussed for different stages of development, different blocks, different strata characteristics with different wells For logging technology with cuttings as the analysis object, the analysis information of cuttings should be developed to pay more attention to the information of drilling fluid. By giving play to the advantages of different logging technologies, Complement each other and continue to explore and apply new technologies, timely detection of oil and gas anomalies, accurate assessment of the evaluation of oil and gas layers.