The Research Of Improving Drilling Rate In HZ25-7Block

Compaction of the project for the Panyu and Huizhou deep strata rock, the str ata of calcareous and siliceous cementation abrasive, cause lower ROP and the h igh investment of exploration and development. To improve this outstanding prob lem, analysis rock mechanical properties indoor to get regional rock mechanical parameters of the distribution law and rock breaking mechanism for difficult to drilling strata. Research and recommend huizhou25-7block bits for each layer a nd other advices.Research results of the application of HZ25-7-2wells operation, optimize bit design and well configuration, do good wellbore stability job。Meantime, indra ught Power-V technology to overcome well deflection problem for layer dip. R OP improves from the adjacent well HZ25-7-1well6m/h speed to15.2m/h and in advance about11.56days compared with adjacent well, achieved good ec onomic benefits.The research results and method provide valuable advice for regional bits se lection and use, with strong guidance and reference.