发明名称 |
Composition and Method for Treating a Subterranean Formation |
摘要 |
An aqueous oilfield treatment fluid containing a chelating agent and an HF source is described. This fluid is effective at dissolving siliceous materials such as clays and keeping the dissolved materials in solution. In particular it is effective at preventing re-precipitation of initially-dissolved silicon as silica and therefore reduces damage to sandstones with which it is contacted. Methods are given for using this fluid for sandstone matrix stimulation, removal of clay-containing drilling fluid components and filter cakes from wellbores, sandstone acid fracturing, and gravel pack and proppant pack cleaning.
|
申请公布号 |
US2007135314(A1) |
申请公布日期 |
2007.06.14 |
申请号 |
US20070673008 |
申请日期 |
2007.02.09 |
申请人 |
FRENIER WAYNE;ZIAUDDIN MURTAZA;DAVIES STEPHEN;CHANG FRANK |
发明人 |
FRENIER WAYNE;ZIAUDDIN MURTAZA;DAVIES STEPHEN;CHANG FRANK |
分类号 |
C09K8/60;E21B43/00;E21B43/22;E21B43/25;E21B43/26;E21B43/267;E21B43/27 |
主分类号 |
C09K8/60 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|