简要介绍了中国石油天然气公司在苏丹１／２／４区钻井作业中所采用的井身结构、钻具组合、钻井参数、钻头和喷嘴选型等方面的情况，并与国外井队所钻井的钻井质量进行了对比。该区钻井技术及经验的总结必将对今后我国在国外其它项目的钻井作业产生积极的影响，同时对国内石油钻井技术的发展也有一定的借鉴作用 This paper briefly introduces the well body structure, drilling assembly, drilling parameters, bit and nozzle selection adopted by China National Petroleum Corporation (CNPC) in drilling area 1/2/4 in Sudan, Drilling quality is compared. The conclusion of drilling technology and experience in this area will surely have a positive impact on future drilling operations of other projects in other countries in our country and also provide reference for the development of domestic oil drilling technology