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发明名称
旋转式空心抽油杆灌液管柱
摘要
旋转式空心抽油杆灌液管柱属采油技术领域的实用新型专利,它由卡瓦式旋转密封头、空心杆柱及单向喷头组成,与螺杆抽油泵配套使用能实现不停机热清洗,渗稀清蜡新工艺。
申请公布号
CN2156277Y
申请公布日期
1994.02.16
申请号
CN92242624.4
申请日期
1992.12.02
申请人
周小云
发明人
周小云;蔡星萍;张克昌
分类号
E21B17/00
主分类号
E21B17/00
代理机构
代理人
主权项
1、一种旋转式空心抽油杆灌液管柱,包括卡瓦式密封头、可配长度的空心传动杆柱和浮球式单向喷头,其特征在于所述卡瓦式密封头的本体4上部设有提升台肩,下部有内螺纹,座6旋装于本体4下部的内螺纹,座6的内侧斜面与卡瓦外侧的斜面相楔,所述浮球式单向喷头的上端与空心传动杆柱连接,喷头底部开有防砂孔11,中部开有喷液孔10,浮球9置于喷头体12内部密封座8的下面。
地址
200020上海市永加路1弄5号
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