红1井井壁稳定钻井液技术

Drilling Fluid Technology of Borehole Stability in Hong 1 Well

为确保红1井钻探成功,针对红1井地层特点,通过采用聚磺封堵防塌钻井液体系及凝胶成膜屏闭封堵润滑钻井液体系,施工中采用强化封堵-多元抑制-合理密度支撑措施,顺利钻达目的层,为该区块其它井的施工提供了有益的技术支撑.

In order to drill Hong 1 well successfully , and according to the geologic structure of Hong 1 well, sulphonated polymer drilling fluid with the capability of formation sealing for anti -caving and Gel mem-brane drilling fluid with formation sealing and lubrication ability were applied .After these measures of reasonable density sustaining , multi -inhibition and strengthening formation sealing were taken , and the target formation was drilled successfully .At last , this method provided technology support for drilling other wells in the oilfield .