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Keywords: drilling experimentClose
Yohei Hamada, Takehiro Hirose, Takahiro Suzuki, Yoshinori Sanada, Takamitsu Sugihara, Saneatsu Saito, Kyaw Moe, Yasuhiro Yamada
Paper presented at the SPWLA 25th Formation Evaluation Symposium of Japan, September 25–26, 2019
Paper Number: SPWLA-JFES-2019-L
... of geology, indicating the validity of EST. In order to correlate EST with rock strength measured by conventional laboratory experiments, drilling experiments using a high-speed rotary-shear apparatus were performed in the laboratory. Metal drill bits with diameter of 20 mm, fitted to the apparatus, were...
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