牙轮钻头的选型分析  

Optimization Choice Analysis of Roller Cone Bits

作　　者：杨全 张智[2] 李海洋[2] 

机构地区：[1]威锐国际公司中国区(北京),北京100025 [2]西南石油大学,成都610500

出　　处：《重庆科技学院学报（自然科学版）》2012年第5期122-125,共4页Journal of Chongqing University of Science and Technology：Natural Sciences Edition

基　　金：国家自然科学基金项目(50904050);四川省科技厅应用基础计划项目(2011JY0106);博士后科学基金项目(20110490810)

摘　　要：钻头选型的正确与否直接关系到钻井进度和成本的控制,所以选择与地层和工具相匹配的钻头型号非常关键。结合地层抗压强度的资料,临井钻井的钻头使用情况及磨损分析提出牙轮钻头的选型方案。提出初次选型要考虑地层物性参数和临井使用钻头资料,根据这两个途径来进行钻头合理化选择;二次选型方案中重点分析钻头磨损,找出原因,为后续作业中钻头选择提供有力支持。Right bits option affects drilling effective and drilling cost directly.So it is very important to select correct bit types based on the formation and tools.This article introduces some schemes for Roller Cone Bits selection through some comprehensive analysis including formation compressive stress,offset bit run information and dull conditions.It mentions main points for first selection including formation property parameters,offset used bits information,based on above two ways to do the suitable bits option.For the second step,it is more focus on bit dull condition,and tries to find the reason for the dull,so that it can supply better and useful advises for future drilling operations.

关 键 词：牙轮钻头 地层硬度 磨损分析 

分 类 号：TE921.1[石油与天然气工程—石油机械设备]