CN102261237B - 一种错动环缝自清洁防砂筛管 - Google Patents
一种错动环缝自清洁防砂筛管 Download PDFInfo
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- CN102261237B CN102261237B CN201110231096.9A CN201110231096A CN102261237B CN 102261237 B CN102261237 B CN 102261237B CN 201110231096 A CN201110231096 A CN 201110231096A CN 102261237 B CN102261237 B CN 102261237B
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CN201110231096.9A CN102261237B (zh) | 2011-08-12 | 2011-08-12 | 一种错动环缝自清洁防砂筛管 |
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CN201110231096.9A CN102261237B (zh) | 2011-08-12 | 2011-08-12 | 一种错动环缝自清洁防砂筛管 |
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CN102261237A CN102261237A (zh) | 2011-11-30 |
CN102261237B true CN102261237B (zh) | 2016-05-04 |
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CN201110231096.9A Active CN102261237B (zh) | 2011-08-12 | 2011-08-12 | 一种错动环缝自清洁防砂筛管 |
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Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111101906B (zh) * | 2020-01-08 | 2020-09-18 | 王成军 | 一种采油用防砂筛管 |
CN113565473B (zh) * | 2020-04-29 | 2024-07-30 | 中国石油天然气股份有限公司 | 一种自洁型环缝防砂过滤单元及单体式防砂筛管 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US4180463A (en) * | 1978-09-22 | 1979-12-25 | Reynaldo Calderon | Self-cleaning helical spring filter and methods |
CN2584823Y (zh) * | 2002-11-22 | 2003-11-05 | 中国石化胜利油田有限公司采油工艺研究院 | 高精度滤砂管 |
CN201344026Y (zh) * | 2009-01-20 | 2009-11-11 | 浙江省星炬电力电子有限公司 | 双滤层曲流环缝自洁筛管 |
CN201851097U (zh) * | 2010-11-16 | 2011-06-01 | 檀志远 | 自洁洗防沙筛管 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4180463A (en) * | 1978-09-22 | 1979-12-25 | Reynaldo Calderon | Self-cleaning helical spring filter and methods |
CN2584823Y (zh) * | 2002-11-22 | 2003-11-05 | 中国石化胜利油田有限公司采油工艺研究院 | 高精度滤砂管 |
CN201344026Y (zh) * | 2009-01-20 | 2009-11-11 | 浙江省星炬电力电子有限公司 | 双滤层曲流环缝自洁筛管 |
CN201851097U (zh) * | 2010-11-16 | 2011-06-01 | 檀志远 | 自洁洗防沙筛管 |
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Effective date of registration: 20190522 Address after: 161005 No. 5, 1-2 floors, 1 # Building, Zhaoyuan District, Longsha District, Qiqihar City, Heilongjiang Province Patentee after: QIQIHAR YASHENG MACHINERY MANUFACTURING Co.,Ltd. Address before: 211100 Yingxia Garden, Rhine East County Garden, Jiangning District, Nanjing City, Jiangsu Province, 9-102 Patentee before: Jiangsu Ruitou Intellectual Property Operations Co.,Ltd. Effective date of registration: 20190522 Address after: 211100 Yingxia Garden, Rhine East County Garden, Jiangning District, Nanjing City, Jiangsu Province, 9-102 Patentee after: Jiangsu Ruitou Intellectual Property Operations Co.,Ltd. Address before: 610059 No. 1 East Third Road, Erxianqiao, Chengdu City, Sichuan Province Patentee before: Chengdu University of Technology |
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