One-stage Well Structure Tackle And Research On LY5-1HF
In order to achieve the beneficial development of normal shale gas in the Wulong block,a research on the one-stage well structure was carried out in LY5-1HF.Through the analysis of the three-pressure profile,the design of the one-stage well structure based on the necessary sealing points,the optimization of the speed increase plan for the long open-hole section,the study of lipophilic cement slurry plugging,and the optimization of the cementing plan,LY5-1HF was successfully completed.The average mechanical drilling speed of this well is 17.51m/h,and after deducting the complex processing time of 20.98 days,the cycle is 31.25 days,which is 32 days lower than the design cycle.This can provide reference for increasing drilling speed and reducing costs in shale gas drilling in the Wulong area.
One-stage well structureThree-pressure profileLong open-hole sectionLipophilic cementSingle-stage cementing
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