摘要
某钻井平台计量泵使用10寸的叶轮,并改造使用双机械密封,在正常泥浆比重作业情况下,离心泵的排量正常,工作平稳。但是当泥浆比重提升至12PPG以上时,经常出现计量泵运转一段时间后,排量逐渐下降,直至没有排量的情况,严重影响了正常的灌浆作业。考虑到泥浆比重和计量泵本身性能的问题,需要重新对计量泵的作业能力进行校核,并进行适当的改造,以满足高泥浆比重的作业要求。
The tripping pump of a drilling rig uses a 10-inch impeller and a double mechanical seal.Under normal mud gravity operation,the centrifugal pump has a normal discharge and works smoothly.However,when the specific gravity of the mud increases to more than 12PPG,the discharge of the tripping pump often decreases gradually after running for a period of time until there is no discharge,which seriously affects the normal grouting operation.Taking into account the mud weight and the performance of the tripping pump,it is necessary to re-check the operating capacity of the tripping pump and carry out appropriate modification to meet the requirements of high mud weight operation.
作者
吴蕾
WU Lei(CNO0C Oilfield Services Co.,Ltd.,Tianjin 300450,China)
关键词
计量泵
泥浆比重
排量
扬程
tripping pump
mud weight
displacement
pump head
