发明名称 |
DUAL PURPOSE VISCOSIFIER-SCALE INHIBITORS FOR USE IN SUBTERRANEAN FORMATION OPERATIONS |
摘要 |
Embodiments described herein include a method comprising: providing a treatment fluid comprising an aqueous base fluid, a viscosifier-scale inhibitor agent, and a breaker, wherein the viscosifier-scale inhibitor agent comprises a polysaccharide gelling agent grafted with a chelating moiety; introducing the treatment fluid into a subterranean formation, wherein the polysaccharide gelling agent increases the viscosity of the treatment fluid and the chelating moiety remains inert; breaking treatment fluid with the breaker so as to reduce the viscosity of the treatment fluid and chemically release the chelating moiety from the polysaccharide gelling agent; and inhibiting scale within the subterranean formation using the chelating moiety. |
申请公布号 |
US2016168456(A1) |
申请公布日期 |
2016.06.16 |
申请号 |
US201314907348 |
申请日期 |
2013.11.22 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
Weaver Jim D.;McCabe Mike |
分类号 |
C09K8/90;E21B43/26;E21B37/06;C09K8/68;C09K8/528 |
主分类号 |
C09K8/90 |
代理机构 |
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代理人 |
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主权项 |
1. A method comprising:
providing a treatment fluid comprising an aqueous base fluid, a viscosifier-scale inhibitor agent, and a breaker, wherein the viscosifier-scale inhibitor agent comprises a polysaccharide gelling agent grafted with a chelating moiety; introducing the treatment fluid into a subterranean formation, wherein the polysaccharide gelling agent increases the viscosity of the treatment fluid and the chelating moiety remains inert; breaking treatment fluid with the breaker so as to reduce the viscosity of the treatment fluid and chemically release the chelating moiety from the polysaccharide gelling agent; and inhibiting scale within the subterranean formation using the chelating moiety. |
地址 |
Houston TX US |