
基本信息:
- 专利标题: 一种PVA纤维及其制备方法和在返排压裂液处理中的用途
- 专利标题(英):PVA (polyvinyl alcohol) fiber, preparation method thereof and application of PVA fiber in flowback fracturing fluid treatment
- 申请号:CN201610214113.0 申请日:2016-04-07
- 公开(公告)号:CN107268099A 公开(公告)日:2017-10-20
- 发明人: 王建 , 王华全 , 黎莉 , 刘建华 , 张振宇
- 申请人: 中国石油化工集团公司 , 中国石化集团四川维尼纶厂
- 申请人地址: 北京市朝阳区朝阳门北大街22号
- 专利权人: 中国石油化工集团公司,中国石化集团四川维尼纶厂
- 当前专利权人: 中国石油化工集团公司,中国石化集团四川维尼纶厂
- 当前专利权人地址: 北京市朝阳区朝阳门北大街22号
- 代理机构: 重庆弘旭专利代理有限责任公司
- 代理人: 周韶红
- 主分类号: D01F6/14
- IPC分类号: D01F6/14 ; D01F11/06 ; B01J20/26 ; B01J20/30 ; C02F1/28 ; C02F3/00
A PVA (polyvinyl alcohol) fiber is prepared from PVA with polymerization degree being 1000-2500 and alcoholysis degree being 95(mol)%-99.9(mol)%, hydroformylation degree eta of the PVA fiber is 2%-35% (mol/mol), single-fiber linear density of the prepared PVA fiber is 1-5 dtex, and dry breaking strength is higher than or equal to 4.0 cN/dtex. The PVA fiber is used for treating flowback fracturing fluid and can effectively remove impurities such as hydrophobic components, various floating objects, metal and the like in the flowback fracturing fluid, thereby facilitating purification and reuse of the flowback fracturing fluid of an oil and gas field, saving water resources and reducing environmental damage and pollution caused by a fracturing technology of the oil and gas field; besides, the PVA fiber is a degradable and non-toxic product and cannot cause new environmental pollution when used for treatment of the flowback fracturing fluid of the oil and gas field. A preparation method is simple and suitable for industrial production.
公开/授权文献:
- CN107268099B 一种PVA纤维及其制备方法和在返排压裂液处理中的用途 公开/授权日:2020-06-26
IPC结构图谱:
D | 纺织;造纸 |
--D01 | 天然或人造的线或纤维;纺纱或纺丝 |
----D01F | 制作人造长丝、线、纤维、鬃或带子的化学特征;专用于生产碳纤维的设备 |
------D01F6/00 | 单组分合成聚合物人造长丝及类似物;其制造 |
--------D01F6/02 | .仅包括由碳—碳不饱和键反应得到的均聚物 |
----------D01F6/14 | ..用不饱和醇聚合物,如聚乙烯醇或其缩醛或缩酮 |