Speed up Technology for Buried Hill Formation in Weixinan Depression Based on Correlation Coefficient Method
The high-strength limestone in the deep buried hill formation in the Weixinan Depression of the Beibu Gulf Basin has high drilling sensitivity sensitivity and slow mechanical drilling speed,restricting the economic exploration and development deep buried hill oil and gas fields.Due to the large amount and variety of drilling parameter data,it is necessary to comprehensively analyze the reasons for the drilling difficulty and design a speed increase plan.Based on on-site big data,the correlation coefficient method is used to analyze the main control factors that affect the difficulty of drilling in buried hill formations,recommend reasonable drilling parameters,and combine the optimization design of drill bits and the selection of speed increasing tools to form targeted speed increasing plans.After the application,the mechanical drilling speed in the buried hill layer has increased by 41%compared to adjacent wells,and good application results have been achieved.
Weixinan depressionPenetration rateBuried hill formationCorrelation coefficient
NETL
NSTL
万方数据
维普
