Steerable rotary drag bit with longitudinally variable gage aggressivness

• 1. 钻地旋转钻头和制造具有颗粒基体复合钻头体的钻地旋转钻头的方法 [P] . 中国专利： CN101356031B . 2011.06.15
• 2. 钻地旋转钻头和制造具有颗粒基体复合钻头体的钻地旋转钻头的方法 [P] . 中国专利： CN101356031A . 2009-01-28
• 3. Steerable rotary drag bit with longitudinally variable gage aggressivness [P] . 英国专利： GB2328964B . 2001-09-12

  机译： 具有纵向可变应变仪攻击性的可控旋转风阻钻头

• 4. Steerable rotary drag bit with longitudinally variable gage aggressiveness [P] . 美国专利： US5967247A . 1999-10-19

  机译： 具有纵向可变应变仪攻击性的可控旋转风阻钻头

• 5. Rotary drag bit having a non-axial gage portion [P] . 英国专利： GB2352745A . 2001-02-07

  机译： 具有非轴向量规部分的旋转阻力钻头

• 1. Research on the Variable Steering Ratio of Four-Wheel-Steering Vehicle [J] . 林程, 陈思忠, 任良成 现代交通学报（英文版） . 2004,第001期
• 2. Design of a downlink algorithm for rotary steering (logging while drilling) systems [J] . Liang Yao, Wang Mei-Shan, Liu Peng, 应用地球物理（英文版） . 2020,第004期
• 3. Gage Design-Effects of Gage Pad Length,Geometry and Activity(Side Cutting) on PDC Bit Stability,Steerability,and Borehole Quality in Rotary Steerable Drilling Applications [C] . G.Mensa-Wilmot, B.JamesSmith Bits, L.Aggarwal International Association of Drilling Contractors and Society of Petroleum Engineers Drilling Conference . 2006
• 4. Development of New Techniques for Impregnated Diamond Coring Bit Wear Measurement in Conventional Rotary Drilling and Vibration Assisted Rotary Drilling. [D] . Zhang, Wei. 2010
• 5. The compensation for nonlinear friction of DDVC flange-type rotary vane steering gear [O] . Lihua Liang, Luyang Wang, Jingfu Wang -1
• 6. Dynamic characteristic analysis on the bit lateral steering force of push-the-bit rotary steerable bottom hole assembly [O] . Heng Wang, Zhi Chuan Guan, Guo Shan Zhao 2018
• 7. A TRAJECTORY ANALYSIS OF A VARIABLE-DRAG PAYLOAD EJECTED FROM A VEHICLE IN A LOW EARTH ORBIT [R] . Richard Reid, David B. Middleton 1963

• 1. AN ANALYTICAL SOLUTION TO LONGITUDINAL VIBRATION OF A PILE OF ARBITRARY SEGMENTS WITH VARIABLE MODULUS [J] . Wang Teng Wang Kuihua Xie Kanghe . 固体力学学报：英文版 . 2001,第1期
• 2. Implementation of Variable Tone Variable Bits Gray-Scale Image Stegnography Using Discrete Cosine Transform [J] . Sahib Khan ,Muhammad Nawaz Khan ,Somia Iqbal . 信号与信息处理（英文） . 2013,第4期
• 3. Application Study of Bit Selection, Bit Weight and Rotary Speed in SUDAN [J] . A.A.Ibrahim ,T.A.Musa ,A.Yao . 探矿工程：岩土钻掘工程 . 2001,第S1期
• 4. 苯丙胺类药物所致精神病性障碍患者治疗前后冲动攻击性的纵向研究 [C] . 苏中华 ,王会 ,赵晓丹 . 鲁、津两地2012年精神科学术会议 . 2012
• 5. 具有抗风阻性的无缝骑行服结构设计与研究 [A] . 胡秀娟 . 2009