Statements (19)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
Chinese patent application
|
| gptkbp:allows |
本发明公开了一种用于油气井的防砂管柱及其使用方法，涉及油气井防砂技术领域。
|
| gptkbp:application |
CN201510353355.2
|
| gptkbp:assignee |
gptkb:中国石油化工股份有限公司
|
| gptkbp:countryOfPublication |
gptkb:China
|
| gptkbp:filingDate |
2015-06-23
|
| https://www.w3.org/2000/01/rdf-schema#label |
CN104964138A
|
| gptkbp:inventedBy |
gptkb:王志刚
|
| gptkbp:IPC |
E21B43/08
|
| gptkbp:language |
gptkb:Chinese
|
| gptkbp:priorityDate |
2015-06-23
CN201510353355.2 |
| gptkbp:publicationDate |
2015-10-07
|
| gptkbp:publishedIn |
gptkb:CN104964138A
A |
| gptkbp:status |
published
|
| gptkbp:title |
一种用于油气井的防砂管柱及其使用方法
|
| gptkbp:bfsParent |
gptkb:GeeTest_CAPTCHA
|
| gptkbp:bfsLayer |
6
|