球悬挂取心技术  

BALL HANGING CORING TECHNOLOGY

作　　者：许俊良[1] 薄万顺[1] 蒋庆祥[1] 

机构地区：[1]胜利石油管理局钻井工艺研究院,山东东营257017

出　　处：《石油钻采工艺》2005年第4期85-86,共2页Oil Drilling & Production Technology

基　　金：中石化股份公司项目"疏松及破碎地层取心技术研究"(编号JP04011)部分内容

摘　　要：常规松软地层取心时,取心工具采用销钉悬挂内岩心筒,在工具入井时经常出现失效。研制了取心工具的悬挂新结构———球悬挂。该结构内筒的重量不直接作用在销钉上,而是作用在钢球上。钢球的承载能力大,可以避免提前释放内筒组合,防止取心作业失败。简要阐述了该工具的结构和室内及现场试验情况,通过各项试验证实工具结构可行,并提出工具的今后发展方向。Coring at weak formation usually uses pin hang in g coring barrel, but when put it down to hole, it is constantly lose effective. Developed a new hanging structure of coring-ball hanging, the weight of its inne r barrel act on ball rather than pin. The carry capacity of ball is well and can avoid release inner barrel in advance, enhanced success rat of coring. At the s ame time, the structure and its experiments of this coring tools are also introd uced. The testing of this tool have confirmed it is useful for coring.

关 键 词：胜利油田 球悬挂 结构 取心 新技术 

分 类 号：TE244[石油与天然气工程—油气井工程]