石油天然气领域扩孔专利技术浅析

Analysis of the Patents of Extendable Cutting Tool in the Field of Oil and Gas

采用合适的扩孔工具进行扩孔是石油天然气钻井领域应对复杂地层钻井非常有效的手段。目前,随着钻井技术的进步,人们对随钻扩孔技术的应用有了新的认识。随钻扩孔钻进已经不再是一种特殊的钻井作业,而正逐渐成为一种应用于井身结构优化、提高固井质量、全面钻进防斜、提高钻井效率、降低作业成本等方面的有效应用技术。本文重点从扩孔工具专利视角剖析随钻扩孔技术的演进、专利申请态势,重要申请人和重点专利分析等方面入手进行详细的介绍。

Extendable cutting tool,for use in a wellbore,that is utilized to access hydrocarbon bearing formation e.g.crude oil and/or natural gas.Extendable cutting tool with drilling is the important way to improve drilling effi ciency and cementing quality.Using the method of patent information analysis,taking patent data of key technologies in extendable cutting tool,and based on the summary of several key areas of global and Chinese patent application,the comparison of foreign patent application in China and domestic patent application,this paper objectively illustrates the development of extendable cutting tool which can be references in our country.