PDC钻头钻进仿真系统数字化方法研究  

RESEARCH ON THE DIGITAL METHOD OF THE PDC BIT DRILLING PROGRESS SIMULATION SYSTEM

作　　者：任海涛[1] 杨迎新[1] 陈炼[1] 闫静 周春晓[1] 

机构地区：[1]西南石油大学机电工程学院,四川成都610500 [2]宝石机械成都装备制造分公司,四川成都610051

出　　处：《西南石油大学学报（自然科学版）》2010年第5期150-154,共5页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家自然科学基金项目(50774066)

摘　　要：PDC钻头和岩石的数字化技术是PDC钻头钻进仿真系统的关键技术之一。介绍了PDC齿、井底和井壁的数字化方法,分析、对比了PDC齿不同数字化方法的优缺点,研究了PDC齿、井底和井壁表面上各离散点坐标的计算模型,并在Matlab环境下实现了钻进仿真系统几何模型的可视化。为利用数字仿真技术研究复杂钻进条件下PDC钻头与岩石的相互作用关系奠定了基础。The digital technology of PDC bit and rock is a key technology to simulate the drilling progess between PDC bit and rock.This paper has introduced the digital methods of the PDC cutter,well bottom and well wall.Through the analysis and comparison of different digitaln methods,the advantages and disadvantages of them are concluded.Different mathematical formula of calculating the ordinate value of discrete point on the PDC cutters,well bottom and well wall are also analyzed.Furthermore,we established the geometric models of the system by MATLAB Software,which laid a foundation for analyzing the interacting relationship between PDC bit and rock under complex drilling conditions by digital method technology.

关 键 词：PDC钻头 数字化 仿真 复杂钻井 PDC齿 岩石 

分 类 号：TE931[石油与天然气工程—石油机械设备] TE319