CNR-2型岩屑自然伽马录井仪的研制与应用  

Development and application of CNR-2 natural gamma logging unit.

作　　者：佘明军[1] 邵国军[2] 郝家燕[2] 将建军[3] 徐国良[4] 

机构地区：[1]中原石油勘探局地质录井处 [2]中原石油勘探局测井公司 [3]中原油田销售分公司 [4]中原油田石油化工总厂

出　　处：《录井工程》2005年第1期41-43,共3页Mud Logging Engineering

摘　　要：岩屑自然伽马随钻录井技术是应对PDC钻头岩屑细碎、甚至呈粉末状,岩性难以识别的重要手段之一。该文从岩屑自然伽马录井原理、仪器组成、功能与特点、数据采集与处理方式等方面阐述了CNR-2型岩屑自然伽马录井仪的可行性;通过应用实例表明,岩屑自然伽马录井曲线与测井曲线对应性基本一致。这对今后岩屑自然伽马录井技术研究与逐步推广应用具有重要的指导意义。In view of the situation that the cuttings for PDC drilling bit was fine, even in the state of powder, and the lithology was difficult to identify, cutting natural gamma logging technique while drilling is one of important processing ways. From the aspects of the cutting natural gamma logging principles, logging unit′s composition, function, characteristics, data acquisition and processing mode etc., the paper expounded the feasibility of CNR-2 cutting natural gamma logging unit, the applied examples demonstrated that cutting natural gamma logging curves were basically identical with the well logging logs, this kind of mud logging unit will have an important guiding significance for researching, progressively spreading and applying cutting natural gamma logging technique from now on.

关 键 词：自然伽马 录井仪 岩屑 2型 数据采集与处理 研制 录井技术 PDC钻头 应用实例 测井曲线 录井曲线 粉末状 对应性 随钻 

分 类 号：TE321[石油与天然气工程—油气田开发工程] TE927