全部 标题 作者
关键词 摘要


Study of Load Fluctuation Characteristics of PDC Bit during Gas Extraction Borehole in Soft Coal Seam

DOI: 10.4236/oalib.1103693, PP. 1-13

Subject Areas: Mechanical Engineering

Keywords: Load Fluctuation Characteristics, Feeding Resistance, Drilling Torque, Soft Coal, Vibration Amplitude

Full-Text   Cite this paper   Add to My Lib

Abstract

Load fluctuation characteristics have a great influence on drilling performance. So, study the influence of drilling kinematic parameters on the load fluctuation characteristics of PDC bit becomes more and more important. Gas drainage drilling experiment table was built and Gas drainage drilling experiment was carried out under different feed speed, different rotation speed and same drilling thickness with different feed speed and rotation speed. The results indicate that drilling torque decreases with the increase of rotation speed; vibration amplitude of drilling torque increases with increase of rotation speed. Vibration amplitude of feed resistance decreases from 90 r/min to about 240 r/min and then increases. The value of 240 r/min is minimum. Feed resistance and drilling torque increase with the increase of feeding speed. Vibration amplitude of drilling torque and feeding resistance increases with the increase of feeding speed. Feed resistance and drilling torque are almost equal with the same drilling thickness; meanwhile, vibration amplitude of drilling torque and feed resistance increases with the increase of feeding speed. It provides a good basis for setting the appropriate feeding speed and rotation speed in actual work.

Cite this paper

Wang, S. , Han, X. and Zhang, Q. (2017). Study of Load Fluctuation Characteristics of PDC Bit during Gas Extraction Borehole in Soft Coal Seam. Open Access Library Journal, 4, e3693. doi: http://dx.doi.org/10.4236/oalib.1103693.

References

[1]  Zamani, S.M., Hassanzadeh-Tabrizi, S.A. and Sharifi, H. (2016) Failure Analysis of Drill Pipe: A Review. Engineering Failure Analysis, 59, 605-623.
https://doi.org/10.1016/j.engfailanal.2015.10.012
[2]  Liu, Y., Lian, Z., Lin, T., Shen, Y. and Zhang, Q. (2016) A Study on Axial Cracking Failure of Drill Pipe Body. Engineering Failure Analysis, 59, 434-443.
https://doi.org/10.1016/j.engfailanal.2015.11.004
[3]  Makkar, N. and Sullivan, E.C. (2014) Coupling between Lateral and Torsional Oscillations: A New Insight into PDC Drilling Inefficiencies. Offshore Technology Conference Asia, 3, 25-28.
[4]  Zhang, J.C., Duan, L.C. and Wang, H.B. (2009) Analysis on Drilling Rod Vibration Mode of Coalfield Geological Exploration Based on Ansys. Coal Science and Technology, 8, 64-66.
[5]  Yigit, A.S. and Christoforou, A.P. (1996) Coupled Axial and Transverse Vibrations of Oilwell Drillstrings. Journal of Sound and Vibration, 195, 617-627.
https://doi.org/10.1006/jsvi.1996.0450
[6]  Yigit, A.S., and Christoforou, A.P. (2000) Coupled Torsional and Bending Vibrations of Actively Controlled Drillstrings. Journal of Sound and Vibration, 234, 67-83. https://doi.org/10.1006/jsvi.1999.2854
[7]  Shi, X., Cai, W., Meng, Y., Jin, W., Li, G. and Tao, Z. (2014) Numerical Study of Effects of Borehole Pressure on Bit-Teeth Induced Rock Fragmentation. Electronic Journal of Geotechnical Engineering, 19, 4743-4752.
[8]  Hu, Y.Z., Liu, C.Y. and Li, J.W. (2015) Fractal Analysis of Cracks Due to Mixed Mining of Coal Seam Group. Electronic Journal of Geotechnical Engineering, 20, 9749-9760.
[9]  Hareland, G., Nygaard, R., Yan, W. and Wise, J.L. (2007) Cutting Efficiency of a Single PDC Cutter on Hard Rock. Journal of Canadian Petroleum Technology, 48, 60-65.
https://doi.org/10.2118/09-06-60
[10]  Li, X.B. and Zhao, F.J. (2002) Failure Modes of PDC Cutters under Different Loads. Chinese Journal of Nonferrous Metals, 12, 504-507.
[11]  Mishra, B. (2007) Analysis of Cutting Parameters and Heat Generation on Bits of a Continuous Miner-Using Numerical and Experimental Approach. Dissertations and Theses, Gradworks.
[12]  Mishra, B. and Khair, A.W. (2006) Numerical Simulation of Rock Indentation and Heat Generation during Linear Rock Cutting Process. Golden Rocks 2006, The 41st U.S. Symposium on Rock Mechanics, Golden, Colorado, 17-21 June 2006, 653-668.
[13]  Hekimoglu, O.Z. and Ozdemir, L. (2013) Effect of Angle of Wrap on Cutting Performance of Drum Shearers and Continuous Miners. Transactions of the Institution of Mining and Metallurgy, 113, 118-122.
[14]  Pryhorovska, T.O., Chaplinskiy, S.S. and Kudriavtsev, I.O. (2015) Finite Element Modeling of Rock Mass Cutting by Cutters for PDC Drill Bits. ShiyouKantan Yu Kaifa/Petroleum Exploration and Development, 42, 888-892.
https://doi.org/10.1016/S1876-3804(15)30087-2
[15]  Wang, J., Zou, D. and He, R. (2006) Experimental Study on Force of PDC Cutter Breaking Rock. Procedia Engineering, 73, 258-263.
[16]  Liu, S., Liu, Z., Cui, X. and Jiang, H. (2014) Rock Breaking of Conical Cutter with Assistance of Front and Rear Water Jet. Tunnellingand Underground Space Technology, 42, 78-86.
https://doi.org/10.1016/j.tust.2014.02.002
[17]  Menezes, P.L., Lovell, M.R., Avdeev, I.V. and Iii, C.F.H. (2014) Studies on the Formation of Discontinuous Rock Fragments during Cutting Operation. International Journal of Rock Mechanics and Mining Sciences, 71, 131-142.
https://doi.org/10.1016/j.ijrmms.2014.03.019
[18]  Chen, S., Arfele, R., Anderle, S. and Romero, J. (2013) A New Theory on Cutter Layout for Improving PDC Bit Performance in Hard and Transit Formation Drilling. SPE Drilling and Completion, 28, 338-349.
https://doi.org/10.2118/168224-PA
[19]  Deng, M., Wu, K. and Hu, W. (2014) Rock-Breaking Simulation and Experimental Analysis of PDC Bit Cutter. China Petroleum Machinery, 41, 970-972.
[20]  Mazurkiewicz, D. (2000) Empirical and Analytical Models of Cutting Process of Rocks. Journal of Mining Science, 36, 481-486.
https://doi.org/10.1023/A:1016620810143
[21]  Liu, X.D. and Qu, J.L. (2010) Research on Main Geometric Parameters of PDC Bit Influencing On the Mechanical Behavior. Journal of Mechanical Design and Manufacturing, 5, 69-71.

Full-Text


comments powered by Disqus