针对须家河组岩性特征选择仿生金刚石钻头参数  

Parameter Selection of Bionics Diamond Bit for Lithology of Xujiahe Formation

作　　者：徐良[1] 孙友宏[1] 高科[2] 安娜[3] 

机构地区：[1]吉林大学建设工程学院,吉林长春130026 [2]中原石油勘探局钻井工程技术研究院,河南濮阳457001 [3]河北科技师范学院土木建筑系,河北秦皇岛066004

出　　处：《石油钻探技术》2008年第5期43-46,共4页Petroleum Drilling Techniques

基　　金：国家高技术研究发展计划(“863”计划)“硬岩钻进用仿生金刚石复合钻头及钻进技术研究”(编号:2006AA06Z221)资助

摘　　要：通过对四川须家河组岩石做切片分析、硬度和研磨性测试可知,该岩层石英含量高,硬度大,研磨性非常强,钻进中对钻头提出了非常高的要求。根据岩性分析,对金刚石钻头参数(如钻头胎体硬度、金刚石体积分数和粒度、仿生钻头的非光滑度等)进行了优选。介绍了仿生学的非光滑原理,并将其应用到孕镶金刚石石油钻头的设计中,以此来提高钻头的寿命和钻进效率。Base on the slice analysis, hardness and abrasiveness measurement of rocks of Xujiahe formation, it is concluded that the rock stratum of this formation has high quartz content, high hardness and strong abrasiveness, which presents a great challenge for bit selection. Based on analysis of lithology, structure parameters of diamond bit are optimized, including bit matrix hardness, concentration and particle size of diamond, non-smooth degree of bionic bits. In addition, this paper introduces the theory of bionics no-smooth and its application on impregnated diamond bit design to prolong bit life and to speed up the rate of penetration.

关 键 词：岩石分析 岩性解释 金刚石钻头 钻头设计 

分 类 号：TE921.1[石油与天然气工程—石油机械设备]