钻探工程2024，Vol.51Issue(1)：5-14,10.DOI:10.12143/j.ztgc.2024.01.002
PDC钻头钻进岩石破碎过程及其与钻进规程参数关系的分析研究
Analytical research on the rock fragmentation process and its relationship with drilling parameters in PDC bit drilling
摘要
Abstract
Drill bits with PDC(Polycrystalline Diamond Compact)are used widely in geological exploration,oil and gas drilling and other corresponding fields and good technical,and economic results have been obtained.However,the research on the rock fragmentation process and relationship with drilling parameters in not enough and it affects the further increase of the technical and economic indexes of the PDC bits.Russian drillers have made a lot of work in this field,including the bits,and obtained definite success and it worth us pay attention to.For example,they propose that rock fragmentation should be proceeded under volumetric fragmentation state as well as possible because the rock fragmentation mode is changed;If energy consumption of penetration per revolution of bit is included as an evaluation index,the evaluation system will be more scientific and more overall;Penetration per revolution of bit is not the higher the better,it has an optimum value.The value is depended from drilling parameters closely;it is put forward an idea of critical drilling parameters,meaning that while the product of bit weight and rotary speed is more,than the product,the temperature of the bit will rise drastically,the bit will wear seriously and any large quantity of drilling fluid cannot help resolve the problems.In this case it is necessary to take measures,adjust drilling parameters and avoid drilling process being in the critical state,so that drilling is in the normal state and the drilling can be continued.关键词
PDC钻头/油气钻井/地质勘探/技术经济指标/岩石破碎过程/钻进规程参数Key words
PDC bit/oil and gas drilling/geological exploration/technical and economic indexes/rock fragmentation process/drilling parameters分类
地质学引用本文复制引用
汤凤林,赵荣欣,Нескоромных B.B.,李博,周欣,段隆臣,Чихоткин В.Ф...PDC钻头钻进岩石破碎过程及其与钻进规程参数关系的分析研究[J].钻探工程,2024,51(1):5-14,10.基金项目
国家自然科学基金面上项目"不同结构高压电脉冲钻头的破岩过程与预测模型研究"(编号:42272366) （编号:42272366）
