超高压射流辅助钻井技术研究进展  

Advances in Basic Study on Ultra-High Pressure Water Jet Assisted Drilling

作　　者：李根生[1] 沈忠厚[1] 徐依吉[2] 廖华林[2] 

机构地区：[1]中国石油大学(北京)石油天然气工程学院,北京昌平102249 [2]中国石油大学(华东)石油工程学院,山东东营257061

出　　处：《石油钻探技术》2005年第5期20-23,共4页Petroleum Drilling Techniques

基　　金：国家杰出青年科学基金(编号:50125413)CNPC应用基础研究项目(编号:03A20201)资助

摘　　要：超高压射流辅助机械破岩钻井是提高深井钻井速度的一项前沿技术,关键技术包括井下增压器、超高压射流辅助破岩机理和钻头、超高压射流钻井参数和工艺等。主要介绍了超高压射流破岩机理、井底流场和辅助破岩钻头研究进展,在此基础上提出了超高压水射流辅助钻井技术的研究方向。Ultra-high pressure water jet assisted mechanical drilling is known as one of the advanced and promising technology to increase drilling rate for deep oil and gas wells. The key projects for developing the technology include ultra-high pressure downhole ntensifier, mechanism of ultra-high pressure jet assisted rock cutting, development of jet assisted cutting rock bit, parameters and method of drilling operation, etc. The paper focuses on the advances in rock breaking mechanics and bottomhole flow field of ultra-high pressure jet assisted drilling, and the development of ultra-high pressure jet assisted drilling bits. Suggestions for further research about the technology are given.

关 键 词：超高压水射流 破岩机理 钻头 井底流场 

分 类 号：TE248[石油与天然气工程—油气井工程]