新型加压式取心工具研究及现场应用  

RESEARCH AND APPLICATION OF NEW PRESSURE TYPE CORING TOOL

作　　者：何超[1] 胡畔[1] 唐聪[1] 刘彬[1] 姚建林[1] 陈文才[1] 向贵川 

机构地区：[1]川庆钻探工程有限公司钻采工程技术研究院

出　　处：《钻采工艺》2015年第5期62-65,10,共4页Drilling & Production Technology

摘　　要：国内外现役松软地层取心工具存在着岩心收获率低、残余销钉无法回收、承压接头受力不均匀、装配效率低以及通用性差等问题,且只适用于软地层取心,无法同时满足中、硬地层的取心需要。为此,川庆钻采院研制了一种新型加压式取心工具,解决了上述问题,提高了岩心收获率,实现了此类取心工具在软中硬及破碎地层的全覆盖。其结构合理、效果显著,具有良好的推广价值。The existing soft formation coring tools both at home and abroad have some defects,such as lower core recovery,unable to recycle the used pin,nonuniform stress on the bearing pressure joint,lower assembling efficiency and poor versatility.The tools above only apply to coring of soft formation and can't be used in medium or hard formations.For this,a new pressure type coring tool has been studied and designed by CCDC Drilling & Production Technology Research Institute,the new coring tool has solved the problems above,improved the core recovery,and was suited for all kinds of formation coring tool.What's more,the new pressure type coring tool has rational structure,significant application effect and also a well promotional value.

关 键 词：软地层 加压式 取心工具 

分 类 号：TE92[石油与天然气工程—石油机械设备]