不同压力源在封井器试压中风险对比分析  

COMPARATIVE ANALYSIS ON THE RISK OF DIFFERENT PRESSURE SOURCES IN BOP PRESSURE TEST

作　　者：孙增生 范玉光 姚利祥 张子桥 Sun Zengsheng;Fan Yuguang;Yao Lixiang;Zhang Ziqiao(CNPC Greatwall Drilling Company,Beijing,100101)

机构地区：[1]中国石油长城钻探工程有限公司,北京100101

出　　处：《石油化工安全环保技术》2021年第2期39-42,I0003,共5页Petrochemical Safety and Environmental Protection Technology

摘　　要：为研究封井器在试压过程中一旦发生物理爆炸,3种常见压力源(试压泵、固井车、泥浆泵)对事故后果大小的影响,以某一事故为例,定量计算不同压力源所产生的爆炸能量,包括释放总能量、爆炸当量、碎片飞行初速度及危害半径、液体喷射初速度、喷射危害半径等。结果显示:试压过程中一旦出现爆炸,使用泥浆泵试压作业释放的能量最大,固井车次之,试压泵最小。其原因主要与接入系统的容积有关。故在现场进行试压作业时,应当选择系统容积最小的方式进行,试压泵为首选,其次为固井车,不主张使用泥浆泵。In order to study the effects of three common pressure sources(test pump,cementing unit,mud pump)on the accident consequences in case of physical explosion during pressure test of blowout preventer,this paper takes a certain accident as an example and carries out quantitative calculation of the explosion energy produced by different pressure sources including the released total energy,the explosion equivalent,the initial flying velocity and hazard radius of the debris,the initial velocity of liquid jet,the jet hazard radius and so on.The results indicate that once an explosion occurs during the pressure test,the energy released by the mud pump during the pressure test is the largest;that by the pressure test pump is the smallest and that by the cementing unit is in between.The reason is mainly related to the volume of the access system.Therefore,when performing pressure test operations on site,the method with the smallest system volume should be selected.The pressure test pump is the first choice,followed by the cementing truck and the use of mud pumps is not recommended.

关 键 词：压力源 封井器试压 事故后果 风险对比 

分 类 号：TE921.5[石油与天然气工程—石油机械设备]