【作者】 殷志明； 陈国明； 盛磊祥； 蒋世全； 许亮斌；

【Author】 YIN Zhi-ming, CHEN Guo-ming, SHENG Lei-xiang, JIANG Shi-quan, XU Liang-bin ( China University of Petroleum, Dongying 257061, China; Research Center of China National Offshore Oil Corporation, Beijing 100027, China)

【机构】 中国石油大学； 中海石油研究中心；

【摘要】 空心球双梯度钻井是由Maurer公司研发的一种新型深水钻井技术。在空心球双梯度钻井系统中,泥浆和空心球在钻井平台上混合并泵送到海底注入隔水管内稀释管内泥浆密度与海水相当,以实现双梯度钻井的目的。其中空心球材料可以是玻璃,塑料,复合材料,金属等。该系统的主要优点是除了在海底安装一个控制阀门之外,不需要增加其它新设备。本文简要介绍空心球双梯度钻井系统的工作原理和工艺流程, 以及空心球注入、分离等关键技术,并对该技术的应用前景作了展望。更多还原

【Abstract】 Hollow sphere dual gradient drilling is a new deepwater drilling technology, which is developed by Maurer technology inc. With the hollow-sphere dual-gradient drilling system, the mud and hollow spheres (glass, plastic, composite, metal, etc.) are mixed together at the surface, pumped to the seafloor as a slurry and injected into the riser to reduce the density of the mud in the riser to that of seawater. A major advantage of this system is that no new equipment is needed on the seafloor except a remotely controlled valve. This paper introduces working principle and running process of hollow sphere dual gradient drilling system simply. The research content and development direction for deepwater hollow sphere dual gradient drilling technology are also outlined and discussed.更多还原