金刚石压入岩石全过程研究
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摘要
为了探究金刚石与岩石之间的相互作用过程和现象,在微机控制的电子万能试验机WDW–100上,进行金刚石全过程压入岩石表面的试验研究,通过其试验力–变形曲线总结出金刚石压入岩石后的破碎规律。试验结果表明:金刚石在压入较硬岩石时,宜选择小粒径的金刚石;而在压入较软岩石时,宜选用大粒径的金刚石。金刚石压入试验可为其钻头优化设计提供参考。
In order to explore the interaction process and phenomenon between diamond and rock,the experiment of diamond indenting the rock surface in the whole process was carried out on WDW-100 electronic universal testing machine controlled by microcomputer.The breaking law of diamond pressing into rock was summarized by its test force-deformation curve.The experimental results show that the diamond with small diamond size should be selected when the diamond is pressed into hard rock,and the diamond with large diamond size should be selected when the diamond is pressed into soft rock.The diamond indentation test can provide reference for the optimization design of the drill bit.
In order to explore the interaction process and phenomenon between diamond and rock,the experiment of diamond indenting the rock surface in the whole process was carried out on WDW-100 electronic universal testing machine controlled by microcomputer.The breaking law of diamond pressing into rock was summarized by its test force-deformation curve.The experimental results show that the diamond with small diamond size should be selected when the diamond is pressed into hard rock,and the diamond with large diamond size should be selected when the diamond is pressed into soft rock.The diamond indentation test can provide reference for the optimization design of the drill bit.
引文
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[2]孙义生,王军,杨文彬.深部“打滑”地层绳索取心孕镶金刚石钻头的设计探讨[J].吉林地质,2012,31(4):130–132.SUN Yisheng,WANG Jun,YANG Wenbin.Design of wire-line coring impregnated diamond bit for drilling slipping formation[J].Jilin Geology,2012,31(4):130-132.
[3]孙秀梅,刘建福.坚硬“打滑”地层孕镶金刚石钻头设计与选用[J].探矿工程(岩土钻掘工程),2009,36(2):75–78.SUN Xiumei,LIU jianfu.Design and selection of impregnated diamond bit in hard and slipping formation[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2009,36(2):75-78.
[4]阮海龙,沈立娜,李春,等.弹塑性致密泥岩用新型尖齿PDC钻头的研制与应用[J].探矿工程(岩土钻掘工程),2014,41(12):80–83.RUAN Hailong,SHEN Lina,LI Chun,et al.Research and the application of new sharp-tooth PDC bit used in elastic-plastic compact mudstone[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2014,41(12):80-83.
[5]沈立娜,阮海龙,李春,等.坚硬致密“打滑”地层新型自锐金刚石钻头的研究[J].探矿工程(岩土钻掘工程),2014,41(11):57–59.SHEN Lina,RUAN Hailong,LI Chun,et al.Study on a new type self-sharpening diamond bit for drilling in hard-compact-slipping formation[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),2014,41(11):57-59.
[6]杨俊德.金刚石钻头和金刚石锯片磨损机理、设计及性能测试研究[D].长沙:中南大学,2004.YANG Junde.The study on wear regularity,design and performance test of diamond bit and diamond saw[D].Changsha:Central South University,2004.
[7]薛军,马孝春,何德成.岩石多次全过程压入硬度的测试试验[J].探矿工程(岩土钻掘工程),1999(4):44–46.XUE Jun,MA Xiaochun,HE Decheng.A study on rock indentation hardness with MTS rock mechanics test system[J].Exploration Engineering(Rock&Soil Drilling and Tunneling),1999(4):44-46.
[8]刘刚,肖福坤,郭志彪,等.点载荷作用下岩石塑性特征及分类[J].科学技术与工程,2018,18(2):217–222.LIU Gang,XIAO Fukun,GUO Zhibiao,et al.Plastic characteristics of rock under point load[J].Science Technology and Engineering,2018,18(2):217-222.
[9]史贵才,葛修润,卢允德.脆塑性岩石应力脆性跌落系数的试验研究[J].常州工学院学报,2009,22(Z1):1–6.SHI Guicai,GE Xiurun,LU Yunde.Research on coefficient of brittle stress drop of brittle-plastic rocks[J].Journal of Changzhou Institute of Technology,2009,22(Z1):1-6.