Drill bit construction having means for preventing mud-cutting

• 1. 一种可以防止钻头包泥的石油用钻头 [P] . 中国专利： CN206722763U . 2017.12.08
• 2. 防止泥料粘附的高速切泥装置 [P] . 中国专利： CN211440489U . 2020-09-08
• 3. Drilling head for use during water well construction, has pivoted main drill bits with cutting edge arranged within internal diameter of guide pipe, where guide pipe surrounds drill pipe, and drill bits are moveably arranged at base body [P] . 德国专利： DE102010015474A1 . 2011-10-20

  机译： 用于水井建设的钻头，具有枢转的主钻头，其刀刃布置在导管的内径内，导管围绕钻杆，钻头可移动地布置在基体上

• 4. Method and device for preventing a drilling chip from winding around drill bit and for removing a drilling chip deposited in flutes of drill bit [P] . 美国专利： US5421680A . 1995-06-06

  机译： 防止钻屑绕在钻头周围并去除沉积在钻屑槽中的钻屑的方法和装置

• 5. METHOD FOR PREVENTING BITING DURING INNER EXCAVATION CONSTRUCTION METHOD AND PILE HOLE DRILLING ROD FOR INNER EXCAVATION [P] . 日本专利： JP2001040971A . 2001-02-13

  机译： 内挖施工中防止开挖的方法及内挖桩孔钻杆

• 1. Finite Element Investigation of Flow Field Below Asymmetric Drill Bits for Reverse Circulation in Drilling Tight Oil and Gas Reservoirs [J] . Yi Luo, Erxiu Shi, Yin Feng, 工程与科学中的计算机建模(英文) . 2019,第010期
• 2. Similarity evaluation of stratum anti-drilling ability and a new method of drill bit selection [J] . YAN Tie, XU Rui, SUN Wenfeng, 石油勘探与开发:英文版 . 2021,第002期
• 3. Gas-hydrate formation,agglomeration and inhibition in oil-based drilling fluids for deep-water drilling [J] . Fulong Ning, Ling Zhang, YunzhongTu, 天然气化学杂志：英文版 . 2010,第003期
• 4. Concept of a correction mechanism to prevent the drift of a drill bit for micro deep hole drilling [C] . Adam Sanders, Jens Wulfsberg International Conference of the European Society for Precision Engineering and Nanotechnology . 2015
• 5. Comparison of the Suction-Type and the Normal-Type DTH Drill Bits in Reverse Circulation Drilling Using CFD Modeling [D] . Gurkan, Gurbet Guler. 2020
• 6. Construction and Accuracy Assessment of Patient-Specific Biocompatible Drill Template for Cervical Anterior Transpedicular Screw (ATPS) Insertion: An In Vitro Study [O] . Maoqing Fu, Lijun Lin, Xiangxue Kong, 2010
• 7. Measurement of heat generation in drill bits under simulated drilling conditions and estimation of temperatures in drill bits during drilling [O] . Yuko Suto, Kazuhito Yoshimoto, Hiroshi Takahashi 2006
• 8. Implement Russian Aluminum Drill Pipe and Retractable Drilling Bits into the USA.211 Volume 1. Development of Aluminum Drill Pipe in Russia. Volume 2. Development of 211 Retractable Drill Bits in Russia [R] . 1999

• 1. Similarity evaluation of stratum anti-drilling ability and a new method of drill bit selection [J] . YAN Tie ,XU Rui ,SUN Wenfeng . 石油勘探与开发 . 2021,第002期
• 2. Microstructure and properties of composites gun drill bit/drill pipe interface produced by 3D printing method [J] . 赵菲 ,王康 ,段宣政 . 中国焊接:英文版 . 2021,第4期
• 3. 一种具有较低切换时延的覆盖网构造和调度算法 [C] . . 第十六届全国网络与数据通信学术会议(NDCC2008) . 2008
• 4. 具有广义三角结构的非线性切换系统的构造性控制设计 [A] . 龙离军 . 2012