PDC钻头体非光滑表面防黏附性能实验研究  

Experimental Study on Anti-adhesion Property of PDC Bit Body with Non-smooth Surface

作　　者：朱丽红[1] 陈泽鹏 黄勇[1] 强伟 王京印[1] ZHU Lihong;CHEN Zepeng;HUANG Yong;QIANG Wei;WANG Jingyin(School of Petroleum Engineering,China University of Petroleum,Qingdao 266580,Shandong,China)

机构地区：[1]中国石油大学(华东)石油工程学院,山东青岛266580

出　　处：《实验室研究与探索》2018年第10期27-30,共4页Research and Exploration In Laboratory

基　　金：国家自然科学基金项目(51274235);山东省英才基金项目(ZR2015EM027);中央高校基本科研业务经费资助(15CX05039A;18CX02102A);中国石油大学(华东)校级教改项目(JY-A201602)

摘　　要：针对PDC钻头与泥质岩屑黏附问题,将仿生非光滑表面技术应用于钻头泥包防治,通过对自然生物体表非光滑表面形态特征分析,建立非光滑表面模型。通过非光滑表面防黏附性能试验台架,开展室内实验,测试不同形态下的非光滑表面试件防黏附性能,总结出非光滑表面单元体的形态、尺寸及接触时间的最佳值域,为PDC钻头泥包防治提供了新的思路和方法。In recent decades,polycrystalline diamond composite(PDC)bit has been rapidly developed,and becomes the main drill bit in oil drilling.However,the PDC bit is easy to be adhered by the debris in the mud layer,which leads to the failure of the drill and the accident of the well.In this paper,for PDC bit and mud lithic adhesion problems,biological non smooth surface technology is used to drill mud package control,through of natural organisms surface non-smooth surface morphology analysis.A non-smooth surface model is established;non-smooth surface anti adhesion performance is tested,indoor experiment is carried out under the different forms of non-smooth surface specimen anti-adhesion properties.This research provided new ideas and methods for the prevention and treatment of PDC bit balling.

关 键 词：PDC钻头 泥包 仿生学 非光滑表面 防黏附 

分 类 号：TE242[石油与天然气工程—油气井工程]