Drilling Engineering Design and Application of Well Fengshen-x601

WANG Tianyu


Thick gypsum and glutenite exist in Fengshen block, which brings a lot of technical problems in drilling construction, therefore, the drilling engineering design optimization of well Fengshen-x601 was launched. Based on the drilling purpose and combined with the actual drilling information of offset wells, the five-intervalled well track and the well structure with four layer casing were adopted in this well, the HJT537GK high efficiency cone bit was recommended in glutenite formation, and saturated saltwater polysulfonate lubricating drilling fluid system was used in gypsum section, through these measures, safety drilling was guaranteed in this well. The average rate of penetration was 3.15 m/h in the actual drilling operation, which increased by 13% compared with the offset wells, in addition, there were no accidents and complex situations. These effective implementation provided some guidance and reference for drilling operations of in the similar block.
Key words: Well track with five-intervalled; Gypsum; Glutenite; Drilling design; Fengshen-x601


Well track with five-intervalled; Gypsum; Glutenite; Drilling design; Fengshen-x601

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DOI: http://dx.doi.org/10.3968/5609


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