石油钻采工艺2016，Vol.38Issue(6)：730-736,7.DOI:10.13639/j.odpt.2016.06.003
南海高温高压气田开发钻完井关键技术现状及展望
Status and prospect of key drilling and completion technologies for the development of HTHP gasifeld in South China Sea
摘要
Abstract
The development of offshore HTHP gas ifelds is the large-scale offshore system engineering with high investment, high risk and high dififculty. In this paper, the basic characteristics of HTHP gas ifelds in western South China Sea were investigated, and then the corresponding technical dififculties during their development were analyzed from the aspects of wellbore safety, drilling and comple-tion lfuid, cementing, directional well and horizontal well drilling, composite drilling speed improvement and well completion. The key HTHP well drilling and completion technologies which had been developed were summarized systematically, including composite anti-corrosion of tubing and casing,“ifve-prevention”cementing slurry and self-repairing slurry, overpressure cap rock ROP improve-ment, ifne reservoir protection, directional well trajectory control and safe well completion. As the HTHP exploration ifeld is expanded further in the South China Sea, huge challenges emerge in HTHP and deepwater HTHP environments. Faced with these challenges, it is proposed that the drilling and completion technologies for offshore HTHP natural gas development shall focus on the research and development of new equipments, materials and technologies that are suitable for higher temperature and pressure and the completion of offshore emergency rescue system, so as to ensure the safety and efifciency of offshore HTHP well drilling.关键词
南海/高温高压/气田开发/钻完井/关键技术/发展方向Key words
South China Sea/high temperature and high pressure/gasifeld development/well drilling and completion/key technol-ogy/development direction分类
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李中..南海高温高压气田开发钻完井关键技术现状及展望[J].石油钻采工艺,2016,38(6):730-736,7.基金项目
国家“十三五”重大科技专项“莺-琼盆地高温高压天然气富集规律与勘探开发关键技术”（编号2016ZX05024-005）。 （）
