四川须家河组地层特性及其与牙齿接触的仿真分析  

Study on the Characteristic of Sichuan Xujiahe Formation and Contact Analysis with Three Different Tooth Type

作　　者：邓猛[1] 樊新胜 孟军[1] 陈丽霞[1] 单代伟[1] 徐彤[1] 

机构地区：[1]西南石油大学 [2]四川石油管理局川西钻探公司,成都610051

出　　处：《石油矿场机械》2007年第12期6-10,共5页Oil Field Equipment

基　　金：中国石油天然气集团公司重点技术开发项目"四川须家河组地层新型钻头研究"(05B2040200);博士学科点专项科研基金项目"高速牙轮钻头轴承设计理论及方法研究"(20050615003)

摘　　要：为了解决四川须家河组复杂地质条件下机械钻速慢、进尺少、井塌等事故发生率高等问题,在分析该地层岩层特性的基础上,针对龙17井岩样进行了岩石力学性能分析,并在此基础上开展了3种不同齿形与须家河组地层特性岩石接触的有限元仿真研究,得到了各齿形压入速度、压入深度和破碎体积随时间的变化曲线,为须家河地层钻头的设计提供了理论依据。研究成果有利于提高该层位的机械钻速,降低事故发生率,以加快该地区石油天然气勘探开发的速度。There are many problems when drilling in the complex stratum formation in Xujiahe, Sichuan province, such as low rate of penetration, borehole collapse, high accident frequency, short bit life, and so on. To solve the problems, the characteristic of the said formation has been thoroughly studied in this paper. With some rock samples of well Long No. 17, the mechanical parameter of the rock has been tested. Based on the mechanical parameters, the contact analysis between the rock and three different tooth types has been taken out by computer simulation method. The result will be favorable to increase the exploration speed in the formation area.

关 键 词：须家河组 地层特性 机械钻速 岩石 牙齿 

分 类 号：TE921.102[石油与天然气工程—石油机械设备]