The Wear Analysis Model of Drill Bit Cutting Element with Torsion Vibration

Tian, Jialin; Fu, Chuanhong; Yang, Lin; Zhi, Yang; Pang, Xiaolin; Li, You; Zhu, Yonghao; Liu, Gang

doi:10.1155/2014/254026

Cited by 13 publications

(8 citation statements)

References 6 publications

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“…Moreover, these phenomena -wear (chipping) of the cone button and wear of the supports, as a rule, are local in nature, i.e. depreciation of the buttons of the cones and their supports occurs ahead of, respectively, on one of the crowns at one of the cones [10,11].…”

Section: Recommendations For Improving the Design And Operation Of Drmentioning

confidence: 99%

Method of calculating the gear ratios of the cones of tricone drill bits

Toshov

Baratov

Baynazov³

2020

E3S Web Conf.

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The process of rock destruction under dynamic impact on it through two technological criteria in the form of specific contact and specific volumetric fracture works is evaluated. Specific contact and specific volumetric fracture work are used to study the physical and mechanical properties of rocks. The efficiency of rock destruction during well drilling with tricone bits functionally depends on the relative specific contact and specific volumetric fracture work. It is stated that the criteria for evaluating the performance of tricone bits in certain forms are functions of the triad: bit-rock-energy. The disclosed physical nature of the kinetic criteria and the obvious functional dependence on the geometric parameters of these drill bits are an objective basis for constructing a methodology for improving the dynamics of new designs and modifications. The parameters of the kinetic passport of the bit are calculated and presented in tabular and graphical forms as functions corresponding to their coordinates of the cones of the roller cutters and the bottom of the well. Experience in solving optimization problems based on a comparative analysis of kinetic (dynamic) criteria has shown that a) when improving almost any design of a cone bit, it is necessary to use the initial geometrical parameters of the buttons and their number b) to ensure that the supports of adjacent cones are equally loaded along the path of leveling the minimum volumetric fracture work of crowns adjacent cones.

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Section: Recommendations For Improving the Design And Operation Of Drmentioning

confidence: 99%

Method of calculating the gear ratios of the cones of tricone drill bits

Toshov

Baratov

Baynazov³

2020

E3S Web Conf.

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“…The essence of stick-slip vibration is that the driving torque at the drill bit is less than its maximum static friction torque. [21][22][23] According to the above, the new torsional vibration tool can increase the additional high-frequency torsional impact force of the drill bit, which has certain effect on suppressing the stickslip vibration of the drill bit. However, due to the complexity of the downhole conditions, the drill string system is susceptible to nonlinear factors such as friction, damping, dead zones, and etc.…”

Section: Theoretical Modelmentioning

confidence: 99%

Analysis of stick-slip reduction for a new torsional vibration tool based on PID control

Tian

Zhou

Yang

et al. 2019

Proceedings of the Institution of Mechanical Engineers, Part K:

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The phenomenon of stick-slip vibration is widespread in the exploration of deep and ultra-deep wells. It causes the reduction of the mechanical drilling rate and wastes the driving energy. Besides, it also accelerates the aging and failure of the drill strings and threatens the safety of drilling seriously. In order to effectively control the stick-slip vibration of the drill string, a new type of torsional vibration tool is proposed in this paper firstly. Then, the theoretical model of the drill string system based on the tool is established. And then, the viscosity reduction characteristics of the new torsional vibration tool are studied by the PID control method. Finally, field tests were carried out in comparison with simulation. The results show that the new torsional vibration tool can reduce the stick-slip vibration. And the two PID control equations can both control the drill bit speed in real time through changing the turntable speed. The results also have important reference significance for reducing and controlling the stick-slip vibration of the drill string and improving the rock-breaking efficiency.

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“…Based on the geometry of the PDC bit, the azimuth angle of each blade can be evaluated by the azimuth angle of the first cutter on the blade. This relationship can be described as formula (23)…”

Section: Optimization Model Of Lateral Forcementioning

confidence: 99%

“…Considering the working conditions of the drill bit, a prediction model of bit wear is obtained based on the Rabinovich model and verified by experiments. The prediction model of cutter wear rate is as follows 23 V t = m…”

Section: Wear Rate Prediction Model Of a Cuttermentioning

confidence: 99%

See 1 more Smart Citation

Optimization model for polycrystalline diamond compact bits based on reverse design

Han

Kuang

et al. 2018

Advances in Mechanical Engineering

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To improve the effectiveness and efficiency of bit cutter design, a new reverse design method is put forward based on the geometry of a polycrystalline diamond compact bit. The polycrystalline diamond compact bit design parameters (cutter parameters and polycrystalline diamond compact bit profile) are calculated based on the data obtained by threedimensional scanning technology. The main calculation work is realized using MATLAB. Compared with using point cloud data, using the three-dimensional model based on calculated cutter parameters also provides accurate results. Then, the cutter parameters are optimized according to the minimum lateral force principle, minimizing the maximum wear rate principle. The lateral unbalance force of the bit decreases from 7.55%, for the original bit, to 3.17%, for the optimized bit, and the wear of the optimized drill bit is more uniform. The field data show that the optimization models create bits with a longer life and a higher rate of penetration.

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The Wear Analysis Model of Drill Bit Cutting Element with Torsion Vibration

Cited by 13 publications

References 6 publications

Method of calculating the gear ratios of the cones of tricone drill bits

Method of calculating the gear ratios of the cones of tricone drill bits

Analysis of stick-slip reduction for a new torsional vibration tool based on PID control

Optimization model for polycrystalline diamond compact bits based on reverse design

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