![一种二次交联型水基凝胶交联剂及其制备方法与应用](/CN/2016/1/84/images/201610424588.jpg)
基本信息:
- 专利标题: 一种二次交联型水基凝胶交联剂及其制备方法与应用
- 专利标题(英):Secondarily crosslinked aqueous gel crosslinking agent and preparation method and application thereof
- 申请号:CN201610424588.2 申请日:2016-06-15
- 公开(公告)号:CN106047330A 公开(公告)日:2016-10-26
- 发明人: 吕鑫 , 梁守成 , 李强 , 张健 , 王大威 , 李丽霞 , 陈冠中 , 崔盈贤 , 唐晓旭 , 王玉 , 张岭 , 高建崇 , 张洪 , 王传军 , 黄晓东 , 李军
- 申请人: 中国海洋石油总公司 , 中海油研究总院
- 申请人地址: 北京市东城区朝阳门北大街25号
- 专利权人: 中国海洋石油总公司,中海油研究总院
- 当前专利权人: 中国海洋石油集团有限公司,中海油研究总院有限责任公司
- 当前专利权人地址: 北京市东城区朝阳门北大街25号
- 代理机构: 北京纪凯知识产权代理有限公司
- 代理人: 关畅; 王春霞
- 主分类号: C09K8/588
- IPC分类号: C09K8/588 ; C09K8/68 ; C09K8/72 ; C08J3/24 ; C08J3/075
The invention discloses a secondarily crosslinked aqueous gel crosslinking agent and a preparation method and application thereof. The preparation method of the agent comprises the following steps: mixing and reacting metal chloride and alkali in water, and adding an organic acid into above reaction system for mixing and reacting to obtain the secondarily crosslinked aqueous gel crosslinking agent. The secondarily crosslinked aqueous gel crosslinking agent of the invention is applied to the preparation of oil displacement agents and weak gel for acid fracturing and/or profile control. The method of preparing the secondarily crosslinked aqueous gel crosslinking agent according to the invention is simple in process, high in yield, easy to perform and suitable for large-scale production. The secondarily crosslinked aqueous gel crosslinking agent may be used as both a crosslinking agent for an oil displacement agent and an acidifying liquid and fracturing liquid crosslinking agent, and has important applicable value.