套管钻井技术在委内瑞拉ZM-351井的应用

Application of casing drilling technology in ZM-351 well in Venezuela

于顺明 常淑敏

YU Shunming CHANG Shumin

渤海钻探工程公司国际工程公司，天津　300457 渤海钻探工程公司钻井四公司，河北任丘　062552

International Engineering Company of BHDC, Tianjin 300457, China No.4 Drilling Engineering Company of BHDC, Renqiu 062552, China

ZM-351井是委内瑞拉国家石油公司PDVSA在东部ANACO油田CAMPO MATA区块的一口 339.7 mm套管钻井技术试验井。该井采用了国际先进的套管钻井顶部缩紧总成和底部缩紧装置，成功地完成了 339.7 mm套管钻井技术试验，与相同区块、相同井身结构的临井相比，大大缩短了钻井周期，降低了钻井成本，充分体现了套管钻井技术的优越性。详细介绍了ZM-351井套管钻井工艺、套管钻井关键技术、钻机选型和设备配套等情况，为国内推广应用套管钻井技术提供了经验。

ZM-351 is one experimental surface casing drilling well with diameter of 339.7 mm, which is located in block CAMPO MATA, Anaco Oil Filed of PDVSA. The well adopts the advanced international casing drilling technology, i.e. top drill lock assembly bottom drill lock device. Compared with the close wells that are the same well structure and at the same block, the ZM-351 well completion time is shortened, the cost is reduced, and fully showing the advantage of casing drilling. The thesis describes ZM-351 casing drilling process, casing drilling key technology, drilling rig selection and its accessories and etc. so as to provide some experience for casing drilling in China.