Weiyuan shale gas well set a record for a single month
CNPC news came from Sichuan and Chongqing shale gas front line command in January 19th, and the target of drilling for single month drilling in Sichuan and Chongqing area has been achieved.
The 70197 team of the the Great Wall drilling engineering company has completed the drilling successfully in January 13th, which is well 202H8-3 well. The drilling period is 29.26 days, the completion period is 33.26 days, and the penetration rate is 12.57 meters / hour. The drilling speed has achieved remarkable results, creating the shortest record of shale gas drilling cycle in China's Sichuan and Chongqing area.
In 2014, the Great Wall in Weiyuan shale gas drilling risk of cooperation and development, explore a series of solutions: the promotion of factory operations, double batch drilling rig, full speed down the implementation of geological engineering; geological oriented integration, to ensure that the reservoir drilling rate; strengthen technical measures, solid construction template, help Tuiyou fast drilling; drilling optimization the liquid properties, enhance the inhibitory stability, ensuring the stability of the borehole; perfect completion process, improve the cement slurry system, ensure wellbore integrity; prevention and control of the underground complex, reduce the risk of construction, comprehensive speed and efficiency.
Well 202H8-3 well opened in November 9, 2017. The well is 4292 meters deep and 1532 meters long in the horizontal section after the well. According to the the Great Wall drilling Group Company Chongqing shale gas directing the overall arrangement department work speed, optimizing borehole trajectory and wellbore structure, optimizing drilling fluid performance, with only 2 times to complete the three open construction of directional drilling and horizontal well, safe and accident, preliminary implementation of shale gas wells drilled 1 months of dream.
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