套管头是表层套管、技术套管、油层之间的一种专用的石油工具。中国石油天然气总公司早在1987年就明文要求,在所有的油气生产井上,必需加装套管头。加装套管头对海洋生产油井尤为重要。因为海洋生产受气象、潮汐、船舶等外界因素影响较大,采油平台上大多无人看守,套管头一经损坏,后果将十分严重。目前我国海洋石油开发井的套管头,大多由国外引进。 Casing head surface casing, casing technology, a special oil between the tools. As early as 1987, China National Petroleum Corporation (CNPC) had explicitly requested that a casing head be installed on all oil and gas production wells. The installation of casing heads is particularly important for offshore production wells. Because the marine production by weather, tides, ships and other external factors, most of the oil platform unmanned guarding, once the casing head damage, the consequences will be very serious. At present, the casing heads of offshore oil development wells in China are mostly imported from abroad.