发明名称 |
TRIGGERED POLYMER VISCOUS PILL AND METHODS OF USING THE SAME |
摘要 |
<p>The invention provides a method comprising providing a composition comprising a pH trigger and a polymer able to be hydrated in a defined pH zone; injecting the composition with a pH outside the defined pH zone; triggering the pH trigger to adjust the pH of the composition within the defined pH zone; and allowing viscosity of the composition to increase and form a plug.</p> |
申请公布号 |
CA2822208(C) |
申请公布日期 |
2015.10.20 |
申请号 |
CA20112822208 |
申请日期 |
2011.12.20 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
MIRAKYAN, ANDREY |
分类号 |
E21B43/22;C08J3/075;C09K8/44;C09K8/508 |
主分类号 |
E21B43/22 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|