DRILLABILITY

作品数：7被引量：19H指数：3
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Anti-drilling ability of Ziliujing conglomerate formation in Western Sichuan Basin of China
《Petroleum》2023年第1期41-52,共12页Nian Peng Tianshou Ma Gongsheng Zhu Qiang Su 
Sichuan Science and Technology Program(Grant No.2020JDJQ0055);Youth Scientific and Technological Innovation Team Foundation of Southwest Petroleum University(Grant No.2019CXTD09).
The conglomerate rock is usually featured by strong heterogeneity,high abrasiveness,and poor drillability due to its complex composition and texture,which brought a huge challenge for drilling efficiency.In order to g...
关键词：Conglomerate rock Ziliujing formation Mechanical properties DRILLABILITY Drill bit selection 
Drillability prediction in some metamorphic rocks using composite penetration rate index(CPRI)–An approach被引量：3
《International Journal of Mining Science and Technology》2021年第4期631-641,共11页Gaurav Kumar Srivastava M.S.R.Murthy Vemavarapu 
Authors thank the CPRI Project(NPP/2016/HY/1/13042016)for partially supporting the study.Support from NHPC Ltd.and NTPC Ltd.is also thankfully acknowledged.
Assessment of drillability of rocks is vital in the selection,operation,and performance evaluation of cutting tools used in various excavation machinery deployed in mining and tunneling.The commonly used rock drillabi...
关键词：Abrasivity HARDNESS DRILLABILITY Metamorphic rocks Composite penetration rate index(CPRI) 
Rock fragmentation mechanisms and an experimental study of drilling tools during high-frequency harmonic vibration被引量：9
《Petroleum Science》2013年第2期205-211,共7页Li Wei Yan Tie Li Siqi Zhang Xiaoning 
funded by National Natural Science Foundation of China(Grant No.51274072);Youth Science Foundation of Heilongjiang Province(Grant No.QC2012C022)
Resonance drilling is a new technology, still at the laboratory stage. It has great potential to improve rock fragmentation efficiency. We analyzed the amplitude-frequency characteristics of steady- state mechanical v...
关键词：Resonance drilling high frequency excitation amplitude-frequency characteristics naturalfrequency DRILLABILITY 
An estimation of the penetration rate of rotary drills using the Specific Rock Mass Drillability index被引量：6
《International Journal of Mining Science and Technology》2012年第2期187-193,共7页Cheniany Alireza Hasan Khoshrou Seyed Shahriar Kourosh Khademi Hamidi Jafar 
The main purpose of the present study was to provide a practical, convenient drillability prediction model based on rock mass characteristics, geological sampling from blast holes, and drill operational factors. Empir...
关键词：Rotary drillingPenetration rateSpecific Rock Mass Drillability （SRMD） indexSarcheshmeh Copper Mine 
Primary classification on drillability of frozen soil using neural networks被引量：1
《Journal of Coal Science & Engineering(China)》2003年第2期17-20,共4页方江华 张志红 马芹永 
Through analysis on drillability of frozen soil, it is concluded that the main factors affecting the drillability of frozen soil are temperature, wave velocity, impact inductility and chiseling specific work. Based on...
关键词：artificial neural networks frozen soil DRILLABILITY CLASSIFICATION 
Research present situation and analysis on classification of rock drillability
《Journal of Coal Science & Engineering(China)》2001年第1期39-45,共7页张志红 马芹永 
EducationDepartmentofAnhuiProvince (99j10 198)
Rock drillability reflects the drill bit fragments rock hardly or easily. At present, rock drillability classification indexes have rock single axle compressive strength, point load intensity, fracture stress during c...
关键词：DRILLABILITY ROCK CLASSIFICATION research present situation INDEX 
A NEW METHOD FOR CLASSIFICATION OF ROCK DRILLABILITY
《中国有色金属学会会刊：英文版》1993年第3期76-80,共5页Lu, Fan Central-South University of Technology, Changsha 410083, China 
A New method of rock drillability classification for impregnated diamond drilling is recommended. The essence of the method is comparing the area of the slots cut respectively on a standard synthetic rock sample and t...
关键词：ROCK DRILLABILITY CLASSIFICATION DIAMOND core DRILLING cutting-comparison method 
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