油井负压冲砂装置研究  

Study on sand cleaning out device by negative pressure for the well

作　　者：李树臻[1] 李光磊 王亚娟[1] 

机构地区：[1]胜利油田职工大学,山东东营257004 [2]胜利监理公司,山东东营257000

出　　处：《石油矿场机械》2004年第3期21-23,共3页Oil Field Equipment

摘　　要：针对正常冲砂过程中存在的洗井液漏入油层和沉砂返回油层的问题 ,设计了一种负压冲砂装置 ,使用该装置能将原来的冲砂变成抽砂 ,使井底压力始终小于油层压力 ,达到在冲砂过程中保护油层的目的。文章对该装置进行了理论分析 ,给出了基本的计算方法。In view of the problems that the washing fluid leaks into the oil layer and the deposit-sand returns in the normal process of sand cleaning out, we have designed a device of sand cleaning out by negative pressure. We can change the sand cleaning out into pumping it and make the pressure of the bottom hole always lower than that of the oil layer by using it, so we can achieve the aim of protecting the oil layer in the process of sand cleaning out. In this article, we have analyzed the theory and given a tentative calculating method for the designing of the device.

关 键 词：冲砂 负压 结构设计 计算方法 

分 类 号：TE931.202[石油与天然气工程—石油机械设备]