Parameter calculation and analysis of a novel concave surface PDC cutter

doi:10.12143/j.ztgc.2023.05.011

Home > Archive>Volume 50, Issue 5, 2023 >73-80. DOI:10.12143/j.ztgc.2023.05.011

Parameter calculation and analysis of a novel concave surface PDC cutter
DOI:
                        10.12143/j.ztgc.2023.05.011
                    
CSTR:
                        [cstr]
                    
Author:
                        TANG Fenglin1,2TANG Fenglin
Shanghai Institute of Building Sciences Limited Company, Shanghai 200032, China;Faculty of Engineering, China University of Geosciences, Wuhan Hubei 430074, China
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ZHAO Rongxin1ZHAO Rongxin
Shanghai Institute of Building Sciences Limited Company, Shanghai 200032, China
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Neskoromnyh V.V.3Neskoromnyh V.V.
Siberian Federal University, Krasnoyarsk 660095, Russia
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LI Bo1LI Bo
Shanghai Institute of Building Sciences Limited Company, Shanghai 200032, China
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ZHOU Xin4ZHOU Xin
Hubei Earthquake Agency, Wuhan Hubei 430064, China
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DUAN Longchen2DUAN Longchen
Faculty of Engineering, China University of Geosciences, Wuhan Hubei 430074, China
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Affiliation:1.Shanghai Institute of Building Sciences Limited Company, Shanghai 200032, China;2.Faculty of Engineering, China University of Geosciences, Wuhan Hubei 430074, China;3.Siberian Federal University, Krasnoyarsk 660095, Russia;4.Hubei Earthquake Agency, Wuhan Hubei 430064, China
Clc Number:P634.4
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Abstract:

PDC bits are widely used in oil and gas drilling， and geological exploration drilling. However， vibrations and abnormal wear of the bits resulting from them compromise the technical and economic effectiveness of the advanced drilling method. The wedge and conic form PDC cutters proposed by both Chinese and foreign specialists have been somehow effective in preventing the vibrations and abnormal wear of drill bits， and increasing the technical and economic indexes； but they can not eliminate the problem completely. Russian scientists have proposed a new type concave PDC cutter， performed computer simulation， and presented related parameters （concave cone angle and rake angle） through theoretical calculation and analytical comparison. The concave PDC cutter can provide some reference for solving the vibrations of PDC bits； thus， it is noteworthy for us to pay attention to.

Key words:PDC bit;vibration;anomaly wear;concave PDC;concave cone angle;rake angle

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History

Received:February 15,2023
Revised:February 15,2023
Adopted:April 28,2023
Online: November 02,2023
Published: September 10,2023

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