（Photo） Name Li Zifeng Date of Birth 07/1962 Degree Ph.D. Title Professor Schools & Departments Institute of Vehicles An

Home , Ma Xingrui

（Photo） Date of Name Li Zifeng 07/1962 Birth Degree Ph.D. Title Professor Institute of Member of the Schools & Academic Academic Vehicles and Degrees Departments Posts Committee of Energy Hebei Province http://mec.ysu.edu. Website cn/mdt/teachers_sh E-mail [email protected] ow.aspx?shid=315 Research Field： tubular mechanics in oil and gas wells, petroleum mechanical engineering, drilling and production engineering Education background & Professional Experiences：

Educational background 1992.12-1994.12: Harbin Institute of Technology, Mechanics, Postdoctor. 1989.09-1992.12: China University of Petroleum, Oil-Gas Field Development Engineering, Ph.D.. 1983.09-1986.07: Northeast Petroleum University, Petroleum Mechanical Engineering, M.S.. 1979.09-1983.07: Northeast Petroleum University, Petroleum Drilling Engineering, B.S..

Employment history 2002.07-Present: Yanshan University, Department of petroleum engineering, Professor(doctoral tutor), set up Yanshan University petroleum and natural gas engineering disciplines, successful declaration of petroleum engineering undergraduate professional, master of oil-gas field development engineering, master of oil-gas well engineering, master of petroleum and natural gas engineering field. 2006.08-2006.12: University of Louisiana at Lafayette, Petroleum Engineering Department, Visiting scholar. 1999.03-2002.06: China University of Geological, “211” Engineering Distinguished Professor (Doctoral tutor, 1999.10), Oil and Gas Engineering Leader. 1997.09-1999.03: Northeast Petroleum University, Petroleum Engineering Department, Professor. 1994.12-1997.08: Northeast Petroleum University, Petroleum Engineering Department, Associate professor. 1990.04-1994.11: Northeast Petroleum University, Petroleum Engineering Department, Lecturer. 1986.07-1990.04: Northeast Petroleum University, Petroleum Engineering Department, Assistant.

Teaching & Research：

The theory system of tubular mechanical in oil-gas wells was established, all kinds of differential equations in tubular mechanical analysis field in oil-gas wells were unified, and it has been widely used in oil-gas drilling and production engineering fields. Published three monographs; Published more than 200 papers, Ei contains 70 articles, Scopus contains 70 articles, SCI contains 17 articles; Authorized invention patent 7 items; Basically the first author. With the first complete person won the third prize of Natural Science Award 2 items in Hebei Province (2008 and 2009). Won the China Science and Technology Development Foundation Sun Yueqi Science and Technology Education Fund “Postdoctoral Award” in 1997, the fourth Heilongjiang Youth Science and Technology Award in 1998, 2015 China Industry-University-Research Innovation and Promotion Award and SPE Outstanding Technical Editor in 2008. For 6 consecutive sessions won the title of the excellent instructor of the China Petroleum Engineering Design Competition. Li Zifeng (first author) in the CNKI impact factor is 21, is in a leading position in the national oil and gas engineering and Yanshan University; The impact factor of Scopus is 8. Chinese scientific papers online outstanding scholar column number of views statistics ranked first in the country. Journal papers Professional papers 1. Li Zifeng, Yang Minjia, Li Bangda. Analysis of Mechanism on Production Casing Failure[J]. Oil Drilling and Production Technology, 1985, 7(4): 47-53. (in Chinese) 2. Tao Jingming, Zhang Shaonan, Li Zifeng. Predicting the Dynamometer Cards of Sucker-Rod Pump[J]. Journal of Daqing Petroleum Institute, 1986, 10(2): 18-31. (in Chinese) 3. Zhang Shaonan, Tao Jingming, Li Zifeng. Computerized Prediction Technique for Rod Pumping Wells[J]. Oil Drilling and Production Technology, 1986, 8(4): 45-50. (in Chinese) 4. Dai Minying, Li Zifeng. The Theoretical Study on Controlling the Locus of Well Bore by Bit Weight[J]. Oil Drilling and Production Technology, 1987, 9(3): 29-32. (in Chinese) 5. Li Zifeng, Tao Jingming, Zhang Shaonan. A Prediction Technique for the Behavior of Sucker-Rod Pumping Systems[J]. Journal of Daqing Petroleum Institute, 1987, 11(4): 32-39. (in Chinese) 6. Li Jingyuan, Li Zifeng. A new idea of pumping unit rotational balance[J]. Journal of Daqing Petroleum Institute, 1988, 12(2): 21-26. (in Chinese) 7. Li Zifeng, Li Bangda. Influence of the Drill Fluid Flow on Lateral Vibration of Drill Stem[J]. China Petroleum Machinery, 1992, 20(1): 37-41. (in Chinese) 8. Li Zifeng, Yu Chengjin, Li Jingyuan. Coupling Vibration in Drill String[J]. Petroleum Drilling Techniques, 1992, 20(2): 16-17, 57. (in Chinese) 9. Li Zifeng, Liu Xisheng. A Steady Tension-Torque Model for Drillstring in Horizontal Wells[J]. Petroleum Drilling Techniques, 1992, 20(4): 1-6. (in Chinese) 10. Li Zifeng, Liu Xisheng. 3D Mechanical Analysis of Steerable Bottom hole Tool Assembly under Small Deflection[J]. Petroleum Drilling Techniques, 1993, 21(2): 1-6. (in Chinese) 11. Li Zifeng, Zhang Shaonan, Li Jingyuan. Mathematical Model for Longitudinal Vibration of Downhole Strings in Directional and Horizontal Wells[J]. China Petroleum Machinery, 1993, 21(7): 46-50. (in Chinese) 12. Li Zifeng, Li Jingyuan, Kong Fanjun. Comment on Tension-Torque Model of Drillstring[J]. China Petroleum Machinery, 1993, 21(8): 43-46. (in Chinese) 13. Li Zifeng, Zhou Daqian, Li Jingyuan. Impact of Various Factors on Lateral Forces of Bit[J]. Oil Drilling and Production Technology, 1993, 15(6): 27-34. (in Chinese) 14. Li Zifeng, Li Jingyuan, Zhang Shaonan. A Mathematical Model for Prediction and Diagnosis of the Behavior of Sucker Rod Pumping Systems in Directional and Horizontal Wells[J]. Journal of Daqing Petroleum Institute, 1994, 18(1): 28-31. (in Chinese) 15. Li Zifeng, Ma Xingrui, Huang Wenhu. The Buckling of a Circular Rod or Pipe Laterally Constrained to be Contact with a Horizontal Circular Cylinder[J]. Journal of Harbin Institute of Technology, 1994, 26(1): 96-100. (in Chinese) 16. Li Zifeng, Ma Xingrui, Huang Wenhu. Geometrically Nonlinear Bending of Slender Bar (Tube) under Compression Torsion Loading in a Horizontal Pipe[J]. Mechanics and Practice, 1994, 16(3): 16-18. (in Chinese) 17. Li Zifeng, Ma Xingrui, Huang Wenhu. Linear Buckling of Drill String in Horizontal Section[J]. OCTG andLine Pipe, 1994, (3): 31-35. (in Chinese) 18. Li Zifeng, Li Jingyuan. Three-Dimensional Drilling Velocity Equation and Its Reverse Evolution Model[J]. West-China Exploration Engineering, 1994, 6(2): 8-11. (in Chinese) 19. Li Zifeng, Liu Xisheng. Static behavior of BHA under large deflection in 3D curved borehole[J]. Journal of the University of Petroleum, China (Edition of Natural Science), 94, 18(4): 37-42. 20. Li Zifeng, Cai Yutian, Chen Tiancheng, et al. Interaction Model between Formation and Bit During the Elliptic Distribution of Rock Drillability[J]. Petroleum Drilling Techniques, 1994, 22(4): 17-18. (in Chinese) 21. Li Zifeng, Ma Xingrui, Huang Wenhu. Fundamental Equations for Dynamical Analysis to the Pipe in An Oil and Gas Well[J]. Mechanics and Practice, 1995, 17(1): 40-42. (in Chinese) 22. Li Zifeng, Zhang Jifen, Li Jingyuan, et al. Diagnoses of Downhole Working Conditions of Sucker Rod Pumps in Directional Wells[J]. Oil Drilling and Production Technology, 1995, 17(1): 55-60. (in Chinese) 23. Li Zifeng, Sun Yuxue, Liu Xisheng. Mathematical model for Predicting Well Bore Trajectory[J]. Journal of Daqing Petroleum Institute, 1995, 19(2): 6-9. (in Chinese) 24. Li Zifeng, Ma Xingrui, Huang Wenhu. A General Formulation of Drill Stem Mechanics and Its Application[J]. Acta Mechanica Sinaca, 1995, 27(4): 406-414. (in Chinese) 25. Li Zifeng, Li Jingyuan, Ma Xingrui, et al. A Mathematical Model of Newton Fluid Laminar Flow Induced by Spin and Revolution of Drillstring[J]. Mechanics and Practice, 1995, 17(5): 51-53. (in Chinese) 26. Li Zifeng, Wu Dehua, Huang Yaofang, et al. Thermo-elasticity Analysis of Casing String and Tubing String during Injecting Steam[J]. Oil Drilling and Production Technology, 1995, 17(6): 62-68. (in Chinese) 27. Li Zifeng, Li Jingyuan, Zhang Jifeng, et al. Mathematical model and application of mechanics analysis of underground working condition in pumping system with directional well[J]. Engineering Mechanics, 1995, (s), 498-504. 28. Li Zifeng, Wu Dehua, Huang Yaofang. Mathematical Model for Temperature Filed of Wellbore and Formation[J]. Oil Drilling and Production Technology, 1996, 18(1): 54-58. (in Chinese) 29. Li Zifeng, Ma Xingrui, Huang Wenhu, et al. 3D Analysis of Bottom Hole Assembly under Large Deflection[J]. SPE Drilling and Completion, 1996, 11(2): 104-110. 30. Li Zifeng. Elastic-Plastic Stress around a Wellbore and Its Stability[J]. Scientia Geologica Sinica, 1996, 5(2): 163-171. 31. Li Zifeng. Some Problems with Study of Drillstring Mechanics[J]. China Petroleum Machinery. 1996, 24(8): 32-35. (in Chinese) 32. Li Zifeng, Ma Xingrui, Huang Wenhu. Static Stability of Pipe String in Oil and Gas Wells[J]. Engineering Mechanics, 1997, 14(1): 17-25. (in Chinese) 33. Li Jingyuan, Li Zifeng. Rock Elastic-plastic Stress around a Wellbore and Its Stability under Permeation Osmosis[J]. Engineering Mechanics, 1997, 14(1): 131-137. (in Chinese) 34. Li Zifeng. Stability of Pipe of Oil-Gas Well and Criss-Cross Curing[J]. West China Exploration Engineering, 1997, 9(2): 23-25, 27. (in Chinese) 35. Li Zifeng. Hydraulic Inclination Controller-Vibration Dampener-Thruster[J]. China Petroleum Machinery, 1997, 25(3): 31-33. (in Chinese) 36. Li Zifeng, Yu Hongjiang, Zhu Zhenrui, et al. Steady State Tubing String Tension-Torque Physical Models and Its Application for Side Tracking Horizontal well During Workover Operation[J]. Oil Drilling and Production Technology, 1997, 19(4): 58-63. (in Chinese) 37. Li Jingyuan, Li Zifeng. Force Analysis of Rod String on Screw Pump System and Allocation of Stabilizer[J]. China Petroleum Machinery, 1998, 26(1): 13-17. (in Chinese) 38. Li Zifeng, Ma Xingrui, Huang Wenhu, et al. Mechanical Analysis of Casing in Thermal Recovery Wells[J]. Engineering Mechanics, 1998, 15(2): 19-26. (in Chinese) 39. Li Jingyuan, Li Zifeng, Ma Xingrui, et al. Mechanical Analysis of tubing in Thermal Recovery Wells[J]. Engineering Mechanics, 1998, 15(3): 51-60. (in Chinese) 40. Li Zifeng, Li Jingyuan, Ma Xingrui, et al. Fundamental Equations and Its Applications for Dynamical Analysis of Rod and Pipe in Oil and Gas Wells[J]. Acta Petrolei Sinica, 1999, 20(3): 88-91. (in Chinese) 41. Li Zifeng. Unbending drill-collar lack of theoretical basis[J]. Acta Petrolei Sinica, 1999, 20(5): 82-83. (in Chinese) 42. Li Zifeng. The lack of “The continuous tubing in the horizontal wells in the mechanical analysis”[J]. Oil Drilling and Production Technology, 2000, 22(2): 80-81. (in Chinese) 43. Li Jingyuan, Li Zifeng, Zhao Xinrui, et al. 3D Static Analysis Method of General Bottom Hole Assembly (BHA) under Small Deflection[J]. Journal of Xi'an Petroleum Institute (Natural Science Edition), 2000, 15(3): 39-44. (in Chinese) 44. Li Zifeng, Li Xiangfang, Shan Zhigang. Monitoring Wellbore Cleaning Degree and Sticking Possibility in Offshore Extended Wells[J]. Petroleum Drilling Techniques, 2000, 28(5): 4-6. (in Chinese) 45. Li Zifeng. The Accuracy of Bilateral Stress Elliptic Theory[J]. Oil Drilling and Production Technology, 2000, 22(6): 35-36. (in Chinese) 46. Li Zifeng, Zhao Xinrui, Zhao Deyun. Mathematical Model for 3D Analysis of General Bottomhole Assembly under Small Deflection and Its Application[J]. Engineering Mechanics.2000, 17(6): 121-129. (in Chinese) 47. Li Zifeng. Discussion on the Matrix Stress Formula[J]. Oil Drilling and Production Technology, 2001, 23(3): 41. (in Chinese) 48. Jiang Shu, Li Zifeng. Study on the Bit Boundary Condition[J]. Oil Drilling and Production Technology, 2001, 23(4): 34. (in Chinese) 49. Li Zifeng, Li Tonglin. Accuracy of the Boundary Conditions at the Upper Tangent of the Conventional BHA[J]. Oil Drillingand Production Technology, 2002, 24(1): 31-32. (in Chinese) 50. Jiang Shu, Li Zifeng, Yang Xinjun, et al. Consideration of the Current Enhanced Oil Recovery[J]. Oil Drilling and Production Technology, 2002, 24(3): 23-26. (in Chinese) 51. Li Zifeng, Li Jingyuan. Fundamental Equations for Dynamic Analysis of Rod and Pipe String in Oil-Gas Wells and Application in Static Buckling Analysis[J]. Journal of Canadian Petroleum Technology, 2002, 41(5): 44-53. 52. Li Zifeng, Jiang Shu, Yang Xinjun. Current Status and Developing Trend of Mechanical Study of Rod and Pipe Strings in Oil and Gas Wells[J]. China Petroleum Machinery, 2002, 30(12): 30-33. (in Chinese) 53. Li Zifeng, Li Jingyuan, Zhao Ping, et al. Mechanical Analysis of Expandable Screen Pipe[J]. China Petroleum Machinery, 2003, 31(12): 6-8. (in Chinese) 54. Li Zifeng, Zhao Jinhai, Jiang Shu. Preliminary Study on Influencing Factors of the Forces and Trajectory Control for Bottom Hole Assembly[J]. Oil Drilling and Production Technology, 2003, 25(6): 35-37. (in Chinese) 55. Zhao Jinhai, Li Zifeng, Zhang Guilin, et al. A preliminary study on dynamic influencing factors for bottom-hole assembly with bending angle or bias axis[J]. Rock and Soil Mechanics, 2003, 24(S): 392-394. (in Chinese) 56. Li Zifeng, Zhao Jinhai, Li Jingyuan. Mathematical Models for 3D Analysis of Rotary Steering Bottom Hole Assembly with Small Deflection[J]. Acta Petroli Sinica, 2004, 25(1): 84-88. (in Chinese) 57. Zhao Jinhai, Zhao Jinzhou, Han Laiju, Li Zifeng. Study on Mechanical Property of Push-The-Bit Rotary Steering BHA[J]. Oil Drilling and Production Technology, 2004, 26(1): 13-15. (in Chinese) 58. Li Zifeng, Li Zhigang. Analysis of Longitudinal Vibration of Drill-string[J]. Natural Gas Industry, 2004, 24(6): 70-73. (in Chinese) 59. Li Zifeng. Some Problems in The Recent Research of Drillstring Bifurcation[J]. China Petroleum Machinery, 2004, 32(6): 68-70. (in Chinese) 60. Li Zifeng, Li Tianjiang, Yang Xinjun, et al. Half Pre-Heating Cementing Technology for Thermal Recovery Well[J]. Oil Drilling and Production Technology, 2004, 26(5): 16-18. (in Chinese) 61. Li Zifeng, Zhang Yonggui, Hou Xutian, et al. Analysis of longitudinal and torsion vibration of drill string[J]. Engineering Mechanics, 2004, 21(6): 203-210. 62. Li Zifeng. Pre-pressured Cementing for Thermal Recovery Wells. Petroleum Drilling Techniques, 2005, 33(1): 1-4. (in Chinese) 63. Li Zhigang, Li Zifeng, Hao Shumin, et al. Study and Application of Fracturing Techniques for the Tight Gas Reservoir with Low Pressure[J]. Natural Gas Industry, 2005, 25(1): 96-99. (in Chinese) 64. Li Zhigang, Wu Xiaoming, Li Zifeng, et al. Research and application of low damage fracturing fluid in low pressure and low permeability gas reservoir[J]. Drilling Fluid & Completion Fluid, 2005, 22(3): 34-37. 65. Li Jingyuan, Li Zifeng. Realization of Well Path Prediction[J]. Natural Gas Industry, 2005, 25(5): 62-64. (in Chinese) 66. Dai Jiang, Cui Lihong, Li Zifeng, et al. Improvement of Preventing Tubing Overflow Tool in the Course of Well Cleanout and Reverse Cleanout[J]. Drilling and Production Technology, 2005, 28(5): 77-79. (in Chinese) 67. Li Zifeng. Cavitating Jet and Its Application Prospects in Rock Cutting during Well Drilling[J]. Natural Gas Industry, 2006, 26(8): 86-89. (in Chinese) 68. Li Tianjiang, Li Zifeng, Zhao Yanchao, et al. Consistency of Pore Structures between NMR and Mercury Intrusion Method[J]. Natural Gas Industry, 2005, 26(10): 57-59. (in Chinese) 69. Li Zifeng, Wang Changjin, Li Tianjiang, et al. Development of Oil Well Drill Pipe –Casing Frictional Wear Tester[J]. China Petroleum Machinery, 2006, 34(11): 11-13, 19. (in Chinese) 70. Han Dongying, Li Zifeng, Zhou Guoqiang, et al. Safety Bearing Capacity Evaluation for Drilling Derrick Based on Vibration Parameters[J]. Petroleum Drilling Techniques, 2006, 34(6): 48-51. (in Chinese) 71. Li Zifeng. Criterion and Erosion Mechanism of Cavitating Jet[J]. Engineering Mechanics, 2007, 24(3): 185-188. (in Chinese) 72. Han Dongying, Li Zifeng, Zhou Guoqiang. Ultimate bearing capacity analysis of derrick steel structures based on partial model updating theory[J]. Engineering Mechanics, 2007, 20(10): 175-179, 185. (in Chinese) 73. Han Dongying, Li Zifeng, Zhou Guoqiang. Simulation model for ultimate bearing capacity of in-service oil drilling derrick[J]. Acta Petrolei Sinica, 2007, 28(2): 120-123, 128. (in Chinese) 74. Han Dong-Ying, Zhou Guo-Qiang, Li Zi-Feng. Forecast method study on ultimate bearing capacity of large-scale steel structure rack with damage and defacements[J]. Acta Metrologica Sinica, 2007, 28(4): 370-374. (in Chinese) 75. Dai Jiang, Li Zifeng, Guan Rongda, et al. Fixed sealing tech by paraff in for well head of wire-line read out testing and oil recovery[J]. Well Testing, 2007, 1(2): 70-71. (in Chinese) 76. Li Tianjiang, Li Zifeng, Guo Zhenhua, et al. Relationship of pore and permeability models between NMR log and conventional log in tight sandstone gas reservoir[J]. Nuclear Techniques, 2007, 30(7): 589-592. (in Chinese) 77. Han Dongying, Zhou Guoqiang, Li Zifeng. Study on method for evaluatingsafety load capacity of drillingmast[J]. Natural Gas Industry, 2007, 27(1): 81-84. (in Chinese) 78. Zhang Yonggui, Li Zifeng. Calculation for pressure gradients of two-phase flow for steam injection in thermal production wells[J]. Oil drilling & Production Technology, 2007, 29(5): 29-32. (in Chinese) 79. Li Zifeng, Dai Jiang. Controlling technique on navigating path of horizontal butt well and cross well[J]. Natural Gas Industry, 2008, 28(2): 70-72. (in Chinese) 80. Li Zifeng, Li Jingyuan, Zhao Jinhai, et al. Influence of drill ing fluid viscosity on drill string longitud inal vibration[J]. Journal of Southwest Petroleum University, 2008, 30(2): 134-137. (in Chinese) 81. Li Zifeng, Liang Erguo. Research and development of drill string mechanics[J]. Oil Drilling and Production Technology, 2008, 30(2): 1-8. (in Chinese) 82. Li Guoqing, Xia Bairu, Jiang Wenyong , Li Zifeng. Tension-torque model for casing strings and its application to directional wells cementing[J]. Oil Drilling and Production Technology, 2008, 30(2): 32-35. (in Chinese) 83. Li Zifeng, Yang Xinjun, Wang Zhaoyun, et al. Casing cementing with internal prepressurization for thermal recovery wells[J]. Engineering Mechanics, 2008, 25(6): 1-9. (in Chinese) 84. Dai Jiang, Li Zifeng, Yu Zhendong, et al. Axially frictional resistance of pipe string in deviated, directional and horizontal wells[J]. Natural Gas Technology, 2008, 2(3): 22-23. (in Chinese) 85. Dai Jiang, Li Zifeng, Liu Guozhi, et al. A new well-testing technology of fracturing two-layers with single string running[J]. Journal of Daqing Petroleum Institute, 2008, 32(3): 40–42. (in Chinese) 86. Li Zifeng, Wang Zhaoyun, Yang Xinjun, et al. Swirling analysis and anti-whirl stabilizer design[J]. Oil Drilling & Production Technology, 2008, 30(2): 124-127. (in Chinese) 87. Wang Wenlong, Zhao Qin, Li Zifeng, et al. Cause analysis and precautions of drilling tools failure during gas drilling in Puguang gas field[J]. Oil Drilling & Production Technology, 2008, 30(5): 38-43. (in Chinese) 88. Li Jingyuan, Li Zifeng, Li Tianjiang, et al. Mechanical analysis software of downhole operation pipe strings and its application[J]. Oil Drilling & Production Technology, 2008, 30(5): 118-121. (in Chinese) 89. Han Dongying, Zhou Guoqiang, Li Zifeng. Damage identification of oil derrick based on stress and equivalent damage coefficients[J]. Oil Drilling & Production Technology, 2008, 30 (1): 29-32. (in Chinese) 90. Li Jingyuan, Li Zifeng, Zhao Jinhai, et al. Causes of and solutions to easy deviation of gas drilling track[J]. Oil Drilling & Production Technology, 2008, 30(1): 33-34. (in Chinese) 91. Zifeng Li. Casing cementing with half warm-up for thermal recovery wells[J]. Journal of Petroleum Science and Engineering, 2008, 61(2-4): 94-98. 92. Zifeng Li. Casing Cementing with internal pre-pressurization for thermal recovery wells[J]. Journal of Canadian Petroleum Technology, 2008, 47(12): 44-49. 93. Li Zifeng, Li Jingyuan. Mathematical models for 3D analysis of rotary steering bottom hole assembly under small deflection[J]. Journal of Energy Resources Technology, 2008, 130(1): 013101-1-7. 94. Ding Baogang, Li Guoqing, Jiang Wenyong, et al. Casing Centralization Design and Verification[J]. Petroleum Drilling Techniques, 2009, 37(1): 58-61. (in Chinese) 95. Li Zifeng, Han Dongying, Zhou Guoqiang. Model parameters identification and over-all properties evaluation for complex load carrying steel structures[J]. Chinese Journal of Applied Mechanics, 2008, 25(4): 678-682. (in Chinese) 96. Li Zifeng, Zhang Yonggui, Yang Xinjun. Interaction model between creep formation and oil well casing[J]. Acta Petroli Sinica, 2009, 30(1): 129-131. (in Chinese) 97. Li Zifeng, Dai Jiang, Yu Zhendong. Mechanical analysis of downhole strings for two-layer fracturing and its application[J]. Oil Drilling and Production Technology, 2009, 31(1): 81-84. (in Chinese) 98. Li Zifeng, Yang Xinjun, Wang Zhaoyun, et al. The pre-expension technique to protect casing from thermal failure in thermal recovery wells[J]. Acta Mechanica Solida Sinica (Chinese edition), 2009, 30(2): 162-169. 99. Zhang Xishun, Li Jingyuan, Zhang Xianghua, Li Zifeng, Dong Shimi. Deepwater petroleum drilling and production technology[J]. Oil Drilling & Production Technology, 2009, 31(2): 39-43. (in Chinese) 100.Liang Erguo, Li Zifeng, Zou Deyong. Experimental research on integrated mechanical model of PDC bit[J]. Rock and Soil Mechanic, 2009, (4): 938-942. (in Chinese) 101.Liang Erguo, Li Zifeng, Zou Deyong. Experimental study on PDC cutting force[J]. Petroleum machinery, 2009, 37(11): 12-15. (in Chinese) 102.Li Zifeng, Li Xuejiao, Fan Yingna, et al. Oil drilling engineering—the locomotive and the backbone of the oil industry[J]. Science & Technology Information, 2009, (36): 30-31. (in Chinese) 103.Zifeng Li, Dongping Yao, G. Robello Samuel. Simplified model for expansion and contraction of slotted tubulars [J]. Journal of Petroleum Science and Engineering, 2010, 72: 244-250. 104.Zhao Wenbin, Li Zifeng. Wang Guobin, et al. Mechanical analysis software of workover pipe strings and its application [J]. Oil Drilling and Production Technology, 2010, 32(3): 23-26. (in Chinese) 105.Li Jingyuan, Chen Guochun, Li Zifeng, et al. Application of filter technique to diagnosis of sucker-rod pumping system[J]. Acta Petrolei Sinica, 2010, 31(1): 144-147. (in Chinese) 106.Yang Xinjun , Li Zifeng , Wang Zhaoyun, et al. Simulating experiment of casing cementing with pre-expansion[J]. Engineering Mechanics, 2010, 27(6): 233-237. (in Chinese). 107.Li Zifeng, Meng Xianpeng, Liang Erguo, et al. Experimental study on relationship between weight losing of slurry by curing and casing axial tension[J]. Oil Drilling and Production Technology, 2010, 32(6): 23-28. 108.Li Zifeng, Zhang Xin, Wang Peng, et al. Analysis of bending moment on the bit in sidetrack drilling[J]. Oil Drilling and Production Technology, 2010, 32(5): 13-16. (in Chinese) 109.Li Zi-feng, Hu Zhi-xing, Zhou Xing-mei. Application Possibilities of Tubular Mechanics in Oil-gas Wells in Micro / Nano Systems[J]. Science and Technology of West China, 2010, 9(9): 16-19. (in Chinese) 110.Zhang Yonggui, Li Zifeng, Zhang Liping. Study on the casing strength of vacuum insulated shaft[J]. Engineering Mechanics, 2010, 27(5): 179-183. (in Chinese) 111.Han Dongying, Shi Peiming, Zhou Guoqiang, Li Zifeng, Li Xujia, Wang Lianjin. Safety Evaluation of Marine Derrick Steel Structures Based on Dynamic Measurement and Updated Finite Element Model[J]. Procedia Engineering, 2011, 26: 1891-1900. 112.Wang Wenlong, Li Zifeng. Influence of shock absorber on longitudinal vibration of drill string under different vibration inducing conditions[J]. Engineering Mechanics, 2011, 28(4): 221-225. (in Chinese) 113.LI Zifeng, CAI Yutian, LI Dongmei, et al. Mechanical analysis of pipe string in formation testing[J]. Acta Petrolei Sinica, 2011, 32(4): 709-716. (in Chinese) 114.Yang Xinjun, Li Zifeng, Chen Fengbo, et al. A simulation of drilling conditions by the new-type oil-well casing abrasion testing machine[J]. China Petroleum Machinery, 2011, 39(1): 13-16. (in Chinese) 115.Han Dongying, Zhou Guoqiang, Li Zifeng, et al. Ultimate bearing capacity prediction of derrick steel structures based on dynamic measurement parameters[J]. Journal of Vibration and Shock, 2011, 30(1): 106-110. (in Chinese) 116.Li Zifeng. Influence of internal and external pressure on equivalent axis force and stability of pipe string in oil wells[J]. Journal of China University of Petroleum(Edition of Natural Science), 2011, 35(1): 65-67. (in Chinese) 117.Yang Xinjun, Li Zifeng. Mechanical Mechanism of Casing Failure of Thermal Recovery Wells[J]. Journal of Chengde Petroleum College, 2011, 13(2): 16-19. (in Chinese) 118.Li Zifeng, Zhao Wenbin, Chen Liqiang, et al. A review on applications of tubular mechanics in medicine[J]. Journal of Biomedical Engineering, 2011, 28(4): 851-854. (in Chinese) 119.Лян Эрго, Ли Цзыфэн, Чэнь Хунбин. Влияние ползучести горных пород на нагрузки обсадной колонны[J]. Газовая промышленность, 2010(6): 647-650. 120.Li Zifeng. Mechanical analysis of tubing string in well testing operation[J]. Journal of Petroleum Science and Engineering, 2012, 90-91: 61-69. 121.Li Zifeng, Li Xuejian, Wang Peng. Pre-bending coiled tubing and its fatigue life prediction[J]. Acta Petrolei Sinica, 2012, 33(4): 706-710. (in Chinese) 122.Zifeng Li, Xuejiao Li, Peng Wang. Prebending Coiled Tubing and Its Fatigue Life Prediction[J]. Journal of Energy Resources Technology, 2012, 134: 034502-1-5. 123.Liang Erguo, Li Zifeng, Zhao Jinhai. Model for collapsing strength calculation of worn casing[J]. Petroleum Drilling Techniques, 2012, 40(2): 41-45. (in Chinese) 124.Li Zifeng, Sun Hu, Su Jinzhu, et al. Theory and applications of mechanical analysis of tubing string in fracturing operation[J]. Journal of Basic Science and Engineering, 2012, 20(5): 846-862. (in Chinese) 125.Li Jingyuan, Li Zifeng. Mechanical Analysis of Tubing String in Fracturing Operation[J]. The Open Petroleum Engineering Journal, 2013, 6: 12-24. 126.Li Zifeng. An inevitable way in drill-string whirling research: Combination of drilling fluid power lubrication with drill string dynamics[J]. Acta Petrolei Sinica, 2013, 34(3): 607-610. (in Chinese) 127.Li Jingyuan, Li Zifeng, Guo Lei. Software for mechanical analysis and optimization design of the oil-gas test string[J]. China Petroleum Machinery, 2013, 41(4): 89-93. (in Chinese) 128.Liang Erguo, Li Zifeng, Wang Changjin, et al. Casing abrasion prediction for deep and extended reach wells[J]. Petroleum Drilling Techniques, 2013, 41(2): 65-69. (in Chinese) 129.Liang Erguo, Li Zifeng, Han Yong, et al. Analysis on collapse strength of casing wear[J]. Chinese Journal of Mechanical Engineering (English Edition), 2013, 26(3): 613-619. 130.Li Guoqing, Li Zifeng. Bottom hole negative pressure generator for drilling[J]. Oil Drilling & Production Technology, 2013, 35(4): 101-102. (in Chinese) 131.Li Zifeng, Wang Peng, Li Xuejiao. The Essence of Temperature and the Regularity of Geothermal Distribution[J]. Physics Essays, 2013, 26(4): 592-593. 132.Li Zifeng. Using the Fictitious Force to Judge the Stability of Pipe String is Wrong[J]. The Open Petroleum Engineering Journal, 2013, 6: 57-60. 133.Li Zifeng, Yang Haibin, Xu Chuntian, et al. Bit feed principles and technonlogies in slide-drilling directional wells[J]. Natural Gas Industry, 2013, 33(12): 94-98. (in Chinese) 134.Li Zifeng, Wang Peng, Zhao Min, et al. Transverse vibration analysis of the riser in deepwater[J]. Journal of Vibration, Measurement and Diagnosis, 2013, 33(6): 1003-1007. (in Chinese). 135.Zifeng Li. Criteria for jet cavitation and cavitation jet drilling[J]. International Journal of Rock Mechanics and Mining Sciences, 2014, 71: 204-207. 136.Li Zifeng, Yang Haijun, Chen Fei. The calculation of the effective external pressure on casing in creep formation[J]. Petroleum Drilling Techniques, 2014, 42(3): 13-15. (in Chinese) 137.Yu Zhendong, Xu Yueqiang, Li Zifeng. Compression technique for drilling bit of drillable bridge plug during downhole motor slide drilling[J]. Oil Drilling & Production Technology, 2014, 36(6): 36-38. (in Chinese) 138.Liang Erguo, Li Zifeng, Wang Jinmin, et al. Experimental study on casing wear mechanism in oil and gas wells[J]. Petroleum Dilling Techniques, 2015, 43(1): 69-74. (in Chinese) 139.Li Zifeng. Comments on “Dynamic Model for Stiff-String Torque and Drag” [published by Tikhonov, Vadim; Valiullin, Khaydar; Nurgaleev, Albert; Ring, Lev; Gandikota, Raju; Chaguine, Pavel; Cheatham, Curtis, SPE Drill. Compl. 29(3) 279–294][J]. Journal of Petroleum Science and Engineering, 2015, In Press 140.Li Zifeng, Wang Peng, Zhao Min, et al. Transverse Vibration Analysis of the Riser in Deep Water[J]. The Open Petroleum Engineering Journal, 2015, 8: 38-44. 141.Zifeng Li. The unification of directional well target area and horizontal well target window[J]. Energy Education Science and Technology Part A: Energy Science and Research, 2015, 33(5): 2589-2598. 142.Li Zifeng. Unitization of horizontal well's target window with directional well target area[J]. Journal of China University of Petroleum (Edition of Natural Science), 2015, 39(6): 80-84.（in Chinese） 143.Zifeng Li, Xu Hongfang, Zhang Chaoyue. Liquid nitrogen gasification fracturing technology for shale gas development[J].Journal of Petroleum Science and Engineering, 2016, 138: 253-256. 144.Zifeng Li. Approximate Inertial Coordinate System Selections for Rotation Problems [J]. Applied Physics Research, 2016, 8(1): 102-105. 145.Li Jingyuan, Li Zifeng. Applications of the theory of continuous oil film lubrication of a radial sliding bearing for three combined conditions [J]. Applied Physics Research, 2016, 8(2): 22-28. 146.Li Jingyuan, Li Zifeng. The presence of a revolution load and its rotational speed of half the speed of the journal are necessary conditions for the half-frequency whirl of radial bearings [J]. Applied Physics Research, 2016, 8(2): 16-21. 147.Li Zifeng. Research advances and debates on tubular mechanics in oil and gas wells[J]. Acta Petrolei Sinica, 2016, 37(4): 531-556. (in Chinese) 148.Li Zifeng. Comment on “A simple and accurate numeric solution procedure for nonlinear buckling model of drill string with frictional effect” by Sun Youhong, Yu Yongping, Liu Baochang [J. Petrol. Sci. Eng. 128(2015)44-52][J]. Journal of Petroleum Science and Engineering, 2016, 81-83: 146. 149.Li Zifeng. Comments on “Drill-string horizontal dynamics with uncertainty on the frictional force” by T. G. Ritto, M. R. Escalante, Rubens Sampaio, M. B. Rosales [J. Sound Vib.332 (2013)145-153][J]. Journal of Sound and Vibration, 2016, 384: 356–361. 150.Li Zifeng. Applicability of unified strength theory in tubular mechanics and safety stress field of the material with SD effect[J]. Acta Petrolei Sinica, 2016, 37(12): 1537-1542. (in Chinese) 151.Li Zifeng, Wang Changjin, Tian Weichao, et al. There principles of drill string mechanics and qualitative simulation experients[J]. Acta Petrolei Sinica, 2017, 38(2): 227-233. (in Chinese) 152.Li Zifeng, Zhang Chaoyue, Song Guangming. Research advances and debates on tubular mechanics in oil and gas wells[J]. Journal of Petroleum Science and Engineering, 2017, 151: 194–212. 153.Li Zifeng, Wang Changjin. Bit feed principles and operations of slide drilling[J]. Journal of Petroleum Science and Engineering, 2017, 152: 505-510. 154.Li Zifeng. Question the focal depth is 600 km[J]. China Science and Technology Information, 2017, (9): 66. (in Chinese)

Amateur academic papers 1. Li Zifeng, Li Tianjiang, Wang Changjin, et al. The Essence of special relativity and its influence on science-philosophy and society[J]. Scientific Research Monthly (Traditional Chinese version), 2005, (13): 80-83. (in Chinese) 2. Li Zifeng. Special relativity being from misunderstanding of principle of constant speed of light[J]. Finding, 2005, (S): 128-132. (in Chinese) 3. Li Zifeng, Wang Zhaoyun. The views of space-time and mass-energy of materialism[J]. Chinese Academic Forum (Traditional Chinese version), 2006, (31): 15-16. (in Chinese) 4. Li Zifeng. Moving objects observation theory in place of special relativity[J]. Chinese Academic Forum (Traditional Chinese version), 2006, (32): 56-58. (in Chinese) 5. Li Zifeng, Tian Xinmin. Magic Weapons for supporting relativity[J]. Chinese Academic Forum (Traditional Chinese version), 2006, (33): 50-51. (in Chinese) 6. Li Zifeng. The essential relationship between mass and energy[J]. Chinese Academic Forum (Traditional Chinese version), 2006, (34): 7-8. (in Chinese) 7. Li Zifeng, Li Tianjiang. Opposing the theory of relativity similar opposing ghosts and gods theory[J]. Chinese Academic Forum (Traditional Chinese version), 2006, (17): 122. (in Chinese) 8. Li Zifeng, Li Tianjiang, Wang Changjin, et al. The essence of special relativity and its influence on science, philosophy and society[J]. Proceedings of the Natural Philosophy Alliance, 2006, 3(1): 126-130. 9. Li Zifeng. Discussion on moving objects observation theory in place of special relativity[J]. Geomatics & Spatial Information Technology, 2007, 30(4): 11-14. (in Chinese) 10. Li Zifeng, Li Tianjiang. Opposing the theory of relativity similar opposing ghosts and gods theory[J]. Science & Technology Information, 2007, (17): 122. (in Chinese) 11. Li Zifeng, Wang Zhaoyun. The views of space-time and mass-energy of materialism[J]. Science & Technology Information, 2007, (18): 21-22. (in Chinese) 12. Li Zifeng, Tian Xinmin. Magic Weapons for supporting relativity[J]. Science & Technology Information, 2007, (18): 139-140. (in Chinese) 13. Li Zifeng, Li Tianjiang, Wang Changjin, et al. The Essence of special relativity and its influence on science-philosophy and society[J]. Science & Technology Information, 2007, (19): 1-3. (in Chinese) 14. Li Zifeng. Special relativity arising from a misunderstanding of experimental results on the constant speed of light[J]. Science & Technology Information, 2007, (19): 81-86. (in Chinese) 15. Li Zifeng. The essential relationship between mass and energy[J]. Science & Technology Information, 2007, (20): 6-8. (in Chinese) 16. Li Zifeng, Li Tianjiang, Wang Changjin, et al. The essence of special relativity and its influence on science, philosophy and society[J]. Scientific Inquiry, 2007, 8(2): 229-236. 17. Li Zifeng, Wang Zhaoyun. Materialistic views of space-time and mass-energy[J]. Scientific Inquiry, 2007, 8(2): 237-241. 18. Li Zifeng. Moving objects observation theory in place of special relativity[J]. Scientific Inquiry, 2007, 8(2): 242-249. 19. Li Zifeng, Tian Xinmin. Magic weapons for supporting relativity[J]. Scientific Inquiry, 2007, 8(2): 250-255. 20. Li Zifeng. The essential relationship between mass and energy[J]. Scientific Inquiry, 2007, 8(2): 256-262. 21. Li Zifeng. Special relativity arising from a misunderstanding of experimental results on the constant speed of light[J]. Physics Essays, 2008, 21(2): 96-102. 22. Li Zifeng. Questioning the United States Apollo moon landing[J]. View, 2009, (5 volume 2): 272-273. (in Chinese) 23. Li Zifeng, Li Runqi. The first type selection and translation again[J]. Science & Technology Information, 2010, (2): 176. (in Chinese) 24. Li Zifeng. The particleicity and the speed of light[J]. Science and Technology of West China, 2010, 9 (13): 15-16. (in Chinese) 25. Li Zifeng, Wang Peng, Li Xuejiao, et al. The nature of temperature and the distribution of ground temperature[J]. Science and Technology of West China, 2010, 9(14): 1-2. (in Chinese) 26. Li Zifeng, Wang Peng, Li Xuejiao, et al. Consciousness is a high orderly form of material[J]. Science and Technology of West China, 2010, 9(15): 68-69. (in Chinese) 27. Li Zifeng. Observation theory of moving objects[J]. Science and Technology of West China, 2010, 9(16): 3-5. (in Chinese) 28. Li Zifeng, Fan Yingna, Li Xuejiao. College teachers should be based on net benefit[J]. Science and Technology of West China, 2010, 9(29): 40-42. (in Chinese) 29. Li Zifeng, Li Xuejiao, Wang Peng. The graduation rate of college students and the gold content of the diploma and the rate of return on social investment[J]. Science and Technology of West China, 2010, 9(36): 70-72. (in Chinese) 30. Li Zifeng. Observation theory of moving objects[J]. Physics Essays, 2011, 24 (1): 34-38. 31. Li Zifeng, Li Jiwei. Can renewable energy be "regenerated"?[J]. Chinese Terminology, 2011, 13(2): 45-47. (in Chinese) 32. Li Zifeng, Ye Bo, Li Sanqing, et al. Idealism and conceptual mistakes in modern physics[J]. Science and Technology of West China, 2011, 10 (1): 4-5. (in Chinese) 33. Li Zifeng, Zhao Min, Li Jiwei. Chinese officials should take a contingency system[J]. Science and Technology of West China, 2011, 10(2): 44-45, 51. (in Chinese) 34. Li Zifeng, Zhao Min, Hu Zhixing. Weighing experiment affected by air buoyancy[J]. Science and Technology of West China, 2011, 10(15): 1, 4. (in Chinese) 35. Li Zifeng, Li Xuejiao. Nomenclature of Material System and the Meaning of “Anti – matter”[J]. Science and Technology of West China, 2011, 10(16): 1, 46. (in Chinese) 36. Li Zifeng. The Essence of Charge - The Principle of Charge Interaction and Coulomb 's Law[J]. Science and Technology of West China, 2011, 10(27): 1-2. (in Chinese) 37. Li Zifeng. Explain the law of universal gravitation with the momentum exchange between the object and the particles[J]. Science and Technology of West China, 2011, 10(28): 1-3. (in Chinese) 38. Li Zifeng, Wu Huan, Li Jiwei. The ignorance and irrationality of modern cosmology[J]. Science and Technology of West China, 2011, 10(33): 1-2, 12. (in Chinese) 39. Li Zifeng. Superluminal and superluminal observation[J]. Science and Technology of West China, 2011, 10(36): 1. (in Chinese) 40. Li Zifeng. Comment on “Nature's Best Challenging Scientific Experiment in 2012”[J]. China Science and Technology Information, 2012, (18): 58. (in Chinese) 41. Li Zifeng. Semantic issues with the word anti in particle physics[J]. Physics Essays, 2012, 25(3): 347-348. 42. Li Zifeng, Xu Hongfang. Supervisors and university discipline[J]. China Science and Technology Information, 2012, (20): 165-166. (in Chinese) 43. Li Zifeng. Selection of First-order Approximate Inertial Coordinate System for Rotation Problem[J]. Science and Technology of West China, 2013, 13(11): 1-2. (in Chinese) 44. Li Zifeng. The law of universal attraction with momentum exchange between objects and microparticles[J]. Scientific Research and Essays, 2013, 8(40): 1968-1972. 45. Li Zifeng. Comments on “Frontier experiments: Tough science-Five experiments as hard as finding the Higgs”[J]. Scientific Research and Essays, 2013, 8(40): 1966-1967. 46. Li Zifeng. The mathematical perfection of students' teaching management method[J]. Science and Technology of West China, 2014, 13(12): 33-34. (in Chinese) 47. Li Zifeng. Physics Essay: Particle nature of light and the speed of light[J]. Applied Physics Research, 2015, 7(6): 49-51. 48. Li Zifeng. Physics Essay: The nature of charge, principle of charge interaction and coulomb’s law[J]. Applied Physics Research, 2015, 7(6): 52-55. 49. Li Zifeng. Physics Essay: Six baseless and irrational problems in modern cosmology[J]. Applied Physics Research, 2015, 7(6): 56-60. 50. Li Zifeng, Wang Peng, Li Xuejiao, et al. Consciousness is an advanced and organized form of matter[J]. Physics Essays, 2015, 28(2): 175-176. 51. Li Zifeng. Comment on “Can the photon be both massive and massless?”[Phys. Essays 28, 55(2015)][J]. Physics Essays, 2016, 29(3): 325-326.

Monographs 1. Li Zifeng. Tubular Mechanics in Oil-Gas Wells and Its Applications. Beijing: Petroleum Industry Press, 2008. 2. Li Zifeng. Tubular Mechanics in Oil-Gas Wells. Beijing: Petroleum Industry Press, 1996. 3. Li Zifeng. Wellbore Trajectory Control Theory. Beijing: Petroleum Industry Press, 1996. 4. Hu Bozhong, Dong Fuzhou, Li Zifeng. Slim Hole Drilling Technology. Beijing: Petroleum Industry Press, 1997. 5. Chen Taoping, Hu Jingbang. Petroleum Engineering. Beijing: Petroleum Industry Press, 2000. (Chapter three) 6. Zhou Daqian. Practical Theoretical Basis of Wellbore Orbit. Beijing: Petroleum Industry Press, 1993. (Chapter three and five) Patents 1. Yanshan University. Liquefied nitrogen gas gasification fracturing method in oil and gas reservoir, application number: 201110361327.8. 2. Yanshan University. Drill string damping - shock absorbers, application number: 201110361339. 0. 3. Yanshan University. Pre-curved coiled tubing, application number: ZL 201020237813. X. 4. Yanshan University. Bottom hole negative pressure generator for drilling, application number: 201210264775. 0. 5. Yanshan University. Device and method for reducing viscosity of heavy oil in wellbore, application number: 2013102978029. 6. Yanshan University. Gravity - pushed vertical drilling anti - skew device, application number: 201310350057X. 7. Yanshan University. Gravity - oriented vertical drilling anti - skew device, application number: 2013103518554. 8. Yanshan University. Gravity stabilized platform of rotary steering drilling system, application number: 2013103502772. 9. Yanshan University. Drilling riser vertical system, application number: 201410325344X

Awards 1. The basic equation of drill string mechanics and its application - The first prize of the excellent paper in Heilongjiang Province-1996-1. 2. Static analysis of three - dimensional large deflection of BHA - The first prize of the excellent paper in Heilongjiang Province-1996-1. 3. China Science and Technology Development Foundation Sun Yueqi Science and Technology Education Postdoctoral Award-1997. 4. Complete sets of drilling technology for oil horizontal wells - The first prize in National Scientific and Technological Progress Award-1997.12-Collective. 5. The 4th Heilongjiang Youth Science and Technology Award - 1998. 6. Horizontal Well Trajectory Control Technology-National Geology and Mineral Resources Outstanding Achievement Award-1998-5. 7. Tubing Mechanics in Oil-Gas Wells - The first prize of the excellent works in Heilongjiang Province-1999-1. 8. Outstanding Technical Editor, SPE, 2008. 9. Tubing Mechanics in Oil-Gas Wells and Its Applications-The third prize of Natural Science in Hebei Province-2009.03-1. 10. 2012 National Petroleum Engineering Design Competition excellent instructor-The National Committee of the People's Republic of China of the World Petroleum Congress. 11. 2013 National Petroleum Engineering Design Competition excellent instructor - Ministry of Education Degree and Graduate Education Development Center. 12. 2014 National Petroleum Engineering Design Competition excellent instructor - Ministry of Education Degree and Graduate Education Development Center. 13. Tubular Mechanicals System in Oil-Gas Wells and Its Application in Petroleum Engineering-The third prize of Natural Science in Hebei Province-2015-1. 14. 2015 China Petroleum Engineering Design Competition excellent instructor-Ministry of Education Degree and Graduate Education Development Center. 15. China Production and Research Cooperation Promotion Award (ministerial first prize)-China Association for the Promotion of Production and Research. 16. 2016 China Petroleum Engineering Design Competition excellent-instructor-Ministry of Education Degree and Graduate Education Development Center.

Projects In research projects 1. National Natural Science Foundation of China: Theoretical and experimental study of drill string whirlpool based on minimum power consumption principle and drilling fluid dynamic lubrication (51374183) (2014-2017); 2. National Natural Science Foundation of China “basic theory of shale oil and gas development”-“dynamic stochastic crack control mechanism and anhydrous fracturing theory of shale formation (51490653) (2015-2019)” collaborative project “mechanical analysis of fracturing cylinders for high efficiency of shale oil and gas”; 3. National Natural Science Foundation of China: Structural principle, stress analysis and optimum design of vertical system of riser for deepwater drilling(51674220)(2017-2020). Completed projects 1. Study on horizontal well trajectory control technology in Dagang low permeability block sandstone reservoir - National Planning Commission “eight five” key scientific and technological project “complete sets of drilling technology for oil horizontal wells” topic (Three levels); 2. Wellbore track control technology for horizontal wells in heavy oil reservoir-National Planning Commission “eight five” key scientific and technological project “complete sets of drilling technology for oil horizontal wells” topic (level three); 3. Study on the interaction theory of borehole, drilling and stratigraphic-China National Petroleum Corporation funded project; 4. Comprehensive mathematical model for dynamic and static analysis of rod string in oil and gas wells-China National Petroleum Corporation funded project; 5. Horizontal well steam injection technology - Liaohe Petroleum Exploration Bureau major project “horizontal well mining technology”; 6. PDC bit whirlpool theory and development of anti-vortex PDC bit-Daqing Petroleum Administration Bureau; 7. Directional well track control technology - Ministry of Geology and Mineral Resources; 8. The trajectory control technology of sidetracking horizontal well-National Planning Commission “nine five” key scientific and technological project “complete sets of drilling technology for sidetracking horizontal wells” sub topics (level four); 9. Sidetracking horizontal well cementing technology-National Planning Commission “nine five” key scientific and technological project “complete sets of drilling technology for sidetracking horizontal wells” sub topics (level four); 10. Mechanical analysis of horizontal pipe string in sidetracking horizontal well-National Planning Commission “nine five” key scientific and technological project “complete sets of drilling technology for sidetracking horizontal wells” sub topics (level four); 11. Petroleum Engineering Teaching Reform-National Planning Commission “nine five” key scientific and technological project topic (level three); 12. Study on the hole cleaning and anti-jamming system of subsea large displacement well-“863” plan; 13. Mechanics analysis of BHA with flexible joint-Daqing Petroleum Administration Bureau; 14. Software development of side drilling well borehole trajectory control system - Liaohe Petroleum Exploration Bureau; 15. The establishment of mechanical model of anti-fracture detachment drilling tool and application software development of drilling tool optimization combination - Liaohe Petroleum Exploration Bureau; 16. Mechanical analysis of downhole working condition of double stage pumping wells - Liaohe Oilfield; 17. Study on micro-oil flooding mechanism of nitrogen foam-Liaohe Petroleum Exploration Bureau; 18. Large displacement horizontal well monitoring software-Liaohe Petroleum Exploration Bureau; 19. Study on improving the use of crude oil by special drilling technology-Liaohe Petroleum Exploration Bureau; 20. Design of technical parameters for workover wells-Liaohe Oilfield; 21. Design and calculation system of expandable screen pipe-Liaohe Oilfield; 22. Mechanical analysis and slope prediction of rotary steering drilling tool-Yanshan University Ph.D. Foundation, Shengli Petroleum Administration Bureau; 23. Study on the force analysis of the drill string in deep well and the anti-abrasion and anti-breaking technology-China Petrochemical Corporation; 24. Dynamic analysis and optimization design of mining system-Liaohe Oilfield; 25. New cementing technology for preventing casing thermal damage in thermal recovery well-National Natural Science Foundation of China; 26. National Natural Science Foundation of China: Study on the vortex state of a rotary drill string considering the hydrodynamic lubrication of drilling fluid (51244004)(2013)； 27. Oilfield cooperation project: Mechanical analysis and strength check of coiled tubing and casing string in horizontal well (2012-2013)； 28. Oilfield cooperation project: Design of a new hydraulic booster and drilling technology (2012-2013).

Part-time information 1. Visiting Professor, Daqing Petroleum Institute; 2. SPE Drilling & Completion Technical Editor； 3. SPE Projects, Facilities & Construction Technical Editor； 4. Journal of Canada Petroleum Technology Reviewer； 5. Member of the Academic Degrees Committee of Hebei Province; 6. Director of Hebei Petroleum Institute; 7. Hebei Province, Director of Vibration Engineering; 8. Oil Drilling Technology Editorial Board; 9. Oil Drilling & Production Technology Editorial Board; 10. Petroleum Machinery Editorial Board; 11. Journal of Mechanics Reviewer; 12. Acta Petrolei Sinica Reviewer; 13. Engineering mechanics Reviewer; 14. Vibration and shock Reviewer; 15. National Natural Science Foundation of China Project Reviewer, “973” Project Reviewer; 16. National Science and Technology Award Evaluation Expert, 2009.