Three Encryption Adjust Well Drilling And Completion Of Oil And Gas Layer Protection Technology

This article focuses on the reservoir characteristics of the study and analysis, identifies the scene of drilling fluid reservoir damage, which is mainly solid damage, followed by water-damage. It establishes a temporary blocking agent optimization fractal theory model and determines the temporary blocking of the bridge particle type, size and size-matched, the volume increases, Shielding temporary blocking technology can be applied to the tertiary infilling reservoir encryption protection. Using the shielding temporary blocking technology to improve the drilling fluid reservoir permeability can be achieved to restore value to the problem that the technical indicators.This article also uses perfect formation pressure forecasting methods, to raise pressure prediction accuracy, to select pressure profile technology pressure and to reduce difference between the lower layer. According to optimize of BHA's designing and hydraulic parameters of bit's designing, and the establishment of the well under pressure and with the speed of drilling plans. Thus, further improve the quality of adjustment wells analysis system, and the establishment of the proposed caliper rules and the concept of evaluating the quality of cementing the quantitative model, Cementing use of a variety of complementary measures to enhance the quality of cementing.In addition, the paper through the study that third encryption adjustment drilling and completion technology field test results, Combined with the technical measures and form a new technical measures to improve the three encryption adjustment drilling and completion quality, guarantee oilfield development programs three adjustments are smoothly carried out smoothly. This paper also discussed that formation pressure under different conditions, should be taken to the completion technology for large-scale three encryption drilling, completion made the necessary technical preparations.