塔里木玛扎塔格地区钻井液技术

Drilling fluid technology in Mazatage Area of Tarim Basin

塔里木玛扎塔格地区以碳酸盐地层为主,裂缝发育,地层压力系数低,进入目的层后易出现喷、漏同层的情况。针对这一情况,制定出一套有效的防漏堵漏技术,并通过近平衡压力钻井,钻井液中增加酸溶性固相、使用低密度低固相完井液等保护措施,解决了玛扎塔格地区的钻井液难题,降低了钻井液成本,取得了良好的经济效益和社会效益。

Carbonate formation with fracture extensions exists in Mazatage area of Tarim Basin, formation pore pressure is low. After drilling into the reservoir, blowout and lost circulation is likely to happen. Some effective anti-loss and plugging technologies have also been applied in this area. Drilling conditions have been improved by selecting suitable drilling fluid system and proper additives, and through proper field maintenance. Gas reservoir protection is obtained by applying near balanced drilling, adding acid soluble solids, and using light weight, low solids completion fluid.