The roller bit acts on the bottom hole rock jointly by a vertical indentation and a level shave shear during the rotary drilling. For its analysis, this paper establishes a prediction model for the rate of penetration based on the revolving indentation theory of the roller bit, and through the laboratory tests, obtains the influence coefficient for rock breaking caused by the chisel teeth true rolling pluridentate linkage. The prediction error for the rate of penetration is 4.1% in average. The model provides a theoretical basis for the accurate prediction of the rate of penetration of the roller bit in the rotary drilling. It is concluded that, taking the level shave shear force into consideration, the intrusive depth of the roller bit is increased as compared with the case of only vertical pressing. The difference is smaller for the case of small frictional coefficient and cutting tip angle. However, it becomes greater with the increase of the frictional coefficient and cutting tip angle, so the effect of the horizontal scrapping cannot be ignored.
FENG Fuping, AI Chi, LÜ Yuanyuan, XING Jun, XU Haisu, GAO Jian, YAN Maosen
. Penetration rate model of roller bit based on revolving indentation theory[J]. Science & Technology Review, 2015
, 33(12)
: 29
-32
.
DOI: 10.3981/j.issn.1000-7857.2015.12.004
[1] Bourgoyne A T, Young F S. A multiple regression approach to optimal drilling and abnormal pressure detection[J]. SPE Journal, 1974, 14(4): 371-384.
[2] Warren T M, Smith M B. Bottom hole stress factors affecting drilling rate at depth[J]. Journal of Petroleum Technology, 1985, 37(8): 1523- 1533.
[3] 石祥超, 万尚贤, 孟英峰, 等. 气体钻井钻速方程的建立与验证[J]. 天 然气工业, 2010, 30(11): 56-58. Shi Xiangchao, Wan Shangxian, Meng Yingfeng, et al. Establishment and verification of the gas drilling ROP equation[J]. Natural Gas Industry, 2010, 30(11): 56-58.
[4] 李昌盛. 基于多元回归分析的钻速预测方法研究[J]. 科学技术与工 程, 2013, 13(7): 1740-1743. Li Changsheng. Study of method for predict rate of penetration based of multiple regression analysis[J]. Science Technology and Engineering, 2013, 13(7): 1740-1743.
[5] 杨谋, 孟英峰, 李皋, 等. 地层渗透性对岩石强度及机械钻速影响因素 分析[J]. 地质科技情报, 2011, 30(3): 127-131. Yang Mou, Meng Yingfeng, Li Gao, et al. Analysis of formation permeability to the influence factors of rock strength and rate of penetration[J]. Geological Science and Technology Information, 2011, 30 (3): 127-131.
[6] 景宁, 樊洪海, 纪荣艺, 等. 基于数据挖掘技术的深井钻速预测方法研 究[J]. 石油机械, 2012, 40(7): 17-20. Jing Ning, Fan Honghai, Ji Rongyi, et al. Data mining technologybased research on the prediction method of deep well ROP[J]. China Petroleum Machinery, 2012, 40(7): 17-20.
[7] 林元华, 施太和, 梁政, 等. 冲旋钻井机械钻速仿真研究[J]. 石油学 报, 2004, 25(5): 88-92. Lin Yuanhua, Shi Taihe, Liang Zheng, et al. Simulation of penetration rate of air percussion drilling bit[J]. Acta Petrolei Sinica, 2004, 25(5): 88-92.
[8] 况雨春, 伍开松, 杨迎新, 等. 三牙轮钻头破岩过程计算机仿真模型 [J]. 岩土力学, 2009, 30(增1): 235-238. Kuang Yuchun, Wu Kaisong, Yang Yingxin, et al. Simulation model of drilling process of three-cone bit[J]. Rock and Soil Mechanics, 2009, 30 (Suppl 1): 235-238.
[9] 邓嵘, 唐东, 安美, 等. 单牙轮钻头钻进过程的计算机仿真[J]. 石油机 械, 2014, 42(8): 45-48. Deng Rong, Tang Dong, An Mei, et al. Simulation of single-cone bit drilling process[J]. China Petroleum Machinery, 2014, 42(8): 45-48.
[10] 李玮, 郑浩然, 开月, 等. 基于单齿侵入理论的牙轮钻头钻速方程[J]. 东北石油大学学报, 2013, 37(1): 85-89. Li Wei, Zheng Haoran, Kai Yue, et al. Drilling rate equation of cone bit basied on single tooth intrusive theory[J]. Journal of Northeast Petroleum University, 2013, 37(1): 85-89.
[11] 李玮, 李亚楠, 陈世春, 等. 井底牙轮钻头的钻速方程及现场应用[J]. 中国石油大学学报: 自然科学版, 2013, 37(3): 74-77. Li Wei, Li Yanan, Chen Shichun, et al. Drilling rate model of cone bit in bottom hole and field application[J]. Journal of China University of Petroleum: Nature Science Edition, 2013, 37(3): 74-77.
[12] 李玮, 许兴华, 闫铁, 等. 欠平衡下牙轮钻头牙齿侵人系数及钻速研 究[J]. 西南石油大李学报: 自然科学版, 2013, 35(3): 168-172. Li Wei, Xu Xinghua, Yan Tie, et al. Study on the tooth invasion coefficient of cone bit and penetration rate in under-balance drilling [J]. Journal of Southwest Petroleum University: Science & Technology Edition, 2013, 35(3): 168-172.
[13] 郑德帅, 高德利, 冯江鹏. 实钻条件下井底岩石可钻性预测模型研究 [J]. 岩土力学, 2012, 33(3): 859-863. Zheng Deshuai, Gao De1i, Feng Jiangpeng. A model for downhole rock drillability prediction under real drilling condition[J]. Rock and Soil Mechanics, 2012, 33(3): 859-863.
