关键词: 完井技术, 压裂技术, 钻井新方法

Abstract: This article studies overseas completion technological creation in recent years, which has been focused on horizontal well. New progress has been made in i-Frac completion tool, intelligent completion and multi-stage fracturing completion technologies. Expandable tubular technology and multi-stage completion process, in particular, have been constantly developed and matured while the fracturing number multiplication technology, network fracturing technology and high-speed channel fracturing technology led to such fracturing development trends as the rise of average partition number of fractional pressure, continual decrease of average spacing and increase of average sand volume for single segment. The new method of double-wall concentric drill pipe drilling, without drill rig drilling, natural gas hydrate development drilling technology, space drilling technology and cryogenic fracturing technology are likely to trigger a new round of drilling technological revolution.

Key words: completion technology, fracturing technology, new drilling method