| 摘要: |
| 设计并加工锥形齿PDC钻头、锥形PDC齿与常规PDC齿混合的复合式钻头、常规PDC齿钻头,在不同性质的岩样上进行台架试验研究,分析锥形齿PDC钻头钻进硬地层的破岩效果以及钻压、转速等钻进参数对其钻进性能的影响规律,并与常规PDC钻头的破岩效果进行对比。结果表明:锥形齿PDC钻头具有钻进硬岩能力,机械钻速随钻压和转速的增加而增大;锥形PDC齿与常规PDC齿混合的复合式钻头在硬岩中可获得较高的破岩效率,机械钻速可提高90.6％。 |
| 关键词: 锥形齿 PDC钻头 台架试验 破岩效率 机械钻速 |
| DOI：10.3969/j.issn.1673-5005.2015.02.007 |
| 分类号::TE 921. 1 |
| 基金项目:高等学校博士学科点专项科研基金课题(2011ZX05031-004) |
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| Experiment study on bench test of stinger PDC bit |
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ZOU Deyong1, SUN Yuanxiu1, YU Peng1, HOU Xutian2, YANG Shunhui2
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(1.School of Petroleum Engineering in China University of Petroleum, Qingdao 266580, China;2.SINOPEC Petroleum Engineering Institute of Technology, Beijing 100102, China)
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| Abstract: |
| The stinger PDC bit, the hybrid PDC bit, and the conventional PDC bit were designed and processed in this study, which were used to conduct bench tests on the different rock samples. And the rock-breaking effect of stinger PDC bit in drilling hard formations and the influence law of drilling parameters (such as weight on bit(WOB), rotation per minite(RPM), etc.) on stinger PDC bit drilling-in performance were investigated. Also, the rock-breaking effect from stinger PDC bit and conventional PDC bit was compared. The results show that the stinger PDC bit is available in hard formation drilling. And rate of penetration(ROP) is improved with the increase of WOB and RPM. Compared with the conventional bit, the hybrid PDC bit can achieve higher ROP in hard formations by 90.6％. |
| Key words: stinger cutter PDC bit bench test rock-breaking efficiency rate of penetration |
