螺栓损伤对环形防喷器密封的影响及维修建议  

Influence of Bolt Damage on Sealing of Annular BOP and Maintenance Suggestions

作　　者：李中华[1,2] 严金林 孙娟 曾乔 万春燕 杨超 LI Zhonghua;YAN Jinlin;SUN Juan;ZENG Qiao;WAN Chunyan;YANG Chao(CNPC Baoji Oilfield Machinery Co.,Ltd.,Baoji 721002,China;CNPC National Engineering Research Center for Oil and Gas Drilling Equipment Co.,Ltd.,Baoji 721002,China)

机构地区：[1]宝鸡石油机械有限责任公司,陕西宝鸡721002 [2]中油国家油气钻井装备工程技术研究中心有限公司,陕西宝鸡721002

出　　处：《机械工程师》2022年第11期33-36,39,共5页Mechanical Engineer

基　　金：中国石油天然气集团公司项目“井控装备关键指标与标准研究”(2020D-5005-46)。

摘　　要：防喷器是钻井工程重要的安全装备,系二级井口设备中的重要设备。防喷器的安全性不仅影响钻井作业的安全进行,而且影响着钻井作业人员的安全。目前针对防喷器的管理依据是SY/T 6160《防喷器检查和维修》,该标准规定了由螺栓损伤数量导致的防喷器判废指标。目前这一判废指标主要基于工程经验,关于具体数值的计算还未见相关研究,文中利用有限元方法开展螺栓损伤数量对环形防喷器密封性能的影响分析,从数值分析角度来验证《防喷器检查和维修》中有关螺栓损伤判废条款的合理性。The blowout preventer is an important safety equipment for drilling engineering which is a secondary well controlling equipment.The reliability of BOP not only relates to the smooth and safe drilling operation,but also to ensuring the safety of operator.At present,the management of the blowout preventer is based on SY/T6160"Blowout Preventer Inspection and Maintenance",which stipulates the rules for the failure of the blowout preventer about the bolt’s damage.The rules for elimination mainly come from engineering experience,still there is no resent research about how the bolts’number is calculated,so this paper uses the finite element method to analyze the influence of the number of bolt damage on the seal of the annular blowout preventer.From the perspective of numerical analysis,the rationality of the clauses about bolt damage judgment in"Blowout Preventer Inspection and Maintenance"is verified.

关 键 词：防喷器 螺栓损伤 判废 有限元 

分 类 号：TE92[石油与天然气工程—石油机械设备]