李玮;郑浩然;开月;张红卫;王茂盛;马旭;赵敏含;

• 1:东北石油大学石油工程学院

• 2:中国石油大学(北京)石油工程学院

• 3:大庆油田有限责任公司勘探开发研究院

• 4:川庆钻探工程有限公司井下作业公司

摘要(Abstract)：

考虑井底水平地应力、钻井流体压力及地层孔隙压力,基于单齿侵入理论推导单齿侵入井底岩石的侵深公式,建立纯滚动锥形齿、楔形齿和滚动、剪切复合运动锥形齿等牙轮钻头的钻速方程.通过实验分析刃尖角、井底液柱压力对单齿侵入深度的影响,以及转速、轴向载荷对微钻头、牙轮钻头机械钻速的影响.结果表明:随着牙齿刃尖角的增大,锥形齿和楔形齿的侵深呈指数递减趋势;随着井底液柱压力的增大,牙齿侵入深度呈指数递减趋势,其中锥形齿降低速率大.在软到中硬地层中,牙齿侵入深度大,冲击侵入、回转剪切复合破岩方式的破岩效率高;在硬度地层中,牙齿侵入深度小,纯滚动冲击侵入破岩效率高.为分析实钻时牙轮钻头的机械钻速提供计算方法.

关键词(KeyWords)：单齿侵入理论;牙轮钻头;钻速方程;钻井工程

Abstract:

Keywords:

基金项目(Foundation):国家科技重大专项(2011zx05021-002);; 国家自然科学基金项目(51274072)

作者(Author):李玮;郑浩然;开月;张红卫;王茂盛;马旭;赵敏含;

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参考文献(References)：

• [1]陈涛平,胡靖邦.石油工程[M].北京:石油工业出版社,2000:50-77.Chen Taoping,Hu Jingbang.Petroleum engineering[M].Beijing:Petroleum Industry Press,2000:50-77.

• [2]李邦达.最优钻井方程及其应用[J].大庆石油学院学报,1982,6(4):30-45.Li Bangda.The optimal drilling equation and its application[J].Journal of Daqing Petroleum Institute,1982,4:30-45.

• [3]陈庭根,管志川.钻井工程理论与技术[M].北京:中国石油大学出版社,2006:52-56.Chen Tinggen,Guan Zhichuan.Drilling engineering theory and technology[M].Beijing:China Petroleum University Press,2006:52-56.

• [4]赖海辉,朱成忠,李夕兵,等.机械岩石破碎学[M].长沙:中南工业大学出版社,1991:192-282.Lai Haihui,Zhu Chengzhong,Li Xibing,et al.Mechanical rock fragmentation[M].Changsha:Central South University Press,1991:192-282.

• [5]杨进.岩石抗钻强度与地层孔隙压力关系模型及其应用[J].石油大学学报:自然科学版,2001,25(2):1-5.Yang Jin.Correlation model of rock strength andformation pore pressure and application of the modle[J].Journal of the University ofPetroleum:Edition of Natural Science,2001,25(2):1-5.

• [6]刘永贵,王洪英.徐深气田气体钻井破岩机理的初步研究[J].石油学报,2008,29(5):773-776.Liu Yonggui,Wang Hongying.Initial research on rock-breaking mechanism for gas drilling in Xushen gas field[J].Acta Petrolel Sini-ca,2008,29(5):773-776.

• [7]郑德帅,冯江鹏.井底压力对岩石破碎的影响机制及应用研究[J].岩土力学,2011,32(1):205-208.Zheng Deshuai,Feng Jiangpeng.Mechanism of effect of down hole pressures on rock failure and its applications[J].Rock and Soil Me-chanics,2011,32(1):205-208.

• [8]寇绍全,张宗贤,愈洁.压头侵入引起的岩石断裂[J].岩石力学与工程学报,1989,18(4):275-285.Kou Shaoquan,Zhang Zongxian,Yu Jie.Rock fracture under indentation[J].Chinese Journal of Rock Mechanics and Engineering,1989,18(4):275-285.

• [9]杨迎新,林敏,张德荣.牙齿刮切实验破碎坑的几何建模[J].岩石力学与工程学报,2002,21(9):1392-1394.Yang Yingxin,Lin Min,Zhang Derong.Geometric modeling of rock grooves induced by scraping tests with single insert[J].ChineseJournal of Rock Mechanics and Engineering,2002,21(9):1392-1394.

• [10]王清峰,朱才朝,宋朝省,等.牙轮钻头单牙轮的破岩仿真研究[J].振动与冲击,2010,29(10):108-112.Wang Qingfeng,Zhu Decai,Song Chaoxing,et al.Non-limear dynamic analysis of a roller cone bit-well rock system with rock-conebit interaction[J].Journal of Vibration and Shock,2010,29(10):108-112.

• [11]赵伏军,李夕兵,冯涛,等.动静载荷耦合作用下岩石破碎理论分析及实验研究[J].岩石力学工程学报,2005,24(8):1316-1321.Zhao Fujun,Li Xibing,Feng Tao,et al.Theoretical analysis and experiments of rock fragmentation under coupling dynamic andstatic loads[J].Chinese Journal of Rock Mechanics and Engineering,2005,24(8):1316-1321.

• [12]闫铁,李玮.分形岩石力学在油气井工程中的应用[J].大庆石油学院学报,2010,34(5):60-64.Yan Tie,Li Wei.Application of fractal rock mechanics to oil and gas engineering[J].Journal of Daqing Petroleum Institute,2010,34(5):60-64.

• [13]齐林,周大千,刘修善.钻头—岩石相互作用模式的理论统一性和表示形式的多样性[J].大庆石油学院学报,1993,17(3):26-31.Qi Lin,Zhou Daqian,Liu Xiushan.The theoretical consistence and variety of expression about the interaction of bit force[J].Jour-nal of Daqing Petroleum Institute,1993,17(3):26-31.

• [14]初迎利,刘修善,周大千.钻头瞬时三维力方向岩石可钻性的确定[J].大庆石油学院学报,1995,19(2):10-14.Chu Yingli,Liu Xiushan,Zhou Daqian.Determination of the rock drillability at instantaneous 3-D component direction of bit force[J].Journal of Daqing Petroleum Institute,1995,19(2):10-14.

• [15]闫铁,李玮,毕雪亮,等.一种基于破碎比功的岩石破碎效率评价新方法[J].石油学报,2009,30(2):291-293.Yan Tie,Li Wei,Bi Xueliang,et al.A new evaluation method of rock crushing efficiency base on the crushing work ratio fractal rep-resentation of rock drillability.Acta Petrolei Sinica,2009,30(2):291-293.

• [16]刘清友,马德坤.牙轮钻头动力学模型的建立与仿真分析[J].石油机械,1998,26(11):1-4.Liu Qingyou,Ma Dekun.Dynamic model establishing and simulation analysis of roller cone bit[J].China Petroleum Machinery,1998,26(11):1-4.