高95井钻井技术及复杂情况处理

Drilling technique and trouble treating for Well Gao95

谢立志 赵荣 张宝玉 王鹤 刘宏伟

XIE Lizhi ZHAO Rong ZHANG Baoyu WANG He LIU Hongwei

胜利油田黄河钻井四公司，山东东营　257000 长江大学石油工程学院，湖北荆州　434023

No. 4 Yellow River Drilling Company, Shengli Oilfield, Dongying 257000, China College of Petroleum Engineering, Yangtze University, Jingzhou 434023, China

高95井是位于济阳坳陷东营凹陷博兴洼陷南斜坡西段的一口预探井，由于地质条件复杂，对地层了解不清楚，在钻井过程中，出现数次硫化氢高浓度显示、取心钻头崩落及螺旋扶正器脱扣等多种复杂情况。对钻井过程中出现问题的原因进行了分析，并及时采取了措施，保障了钻井的顺利进行，为今后该地区钻井复杂情况的处理积累了宝贵经验。

Well Gao95 is a wildcat well located at Boxing low-lying area in Jiyang depression. For the complex geological structure and unclear awareness of the formation, during the drilling operation, it performed with a lot of troubles, such as high hydrogen sulphide concentration, coring bit collapse and helical centralizer dropping. The reasons of the troubles are analyzed and treatments are taken to clear the troubles, so that the well drilling operation is completed successfully, which may be invaluable experience for trouble treating during drilling in this area.