发明名称 |
METHOD FOR TREATING SUBTERRANEAN FORMATION |
摘要 |
It has been found that a large variety of solid chemicals available in a bul k powder form could be added to subterranean treatment fluids with delayed release when said chemicals are delivered as capsules consisting of encapsulated granulates obtained by aggregating the bulk powder under pressu re to form a densified material and optionally, dry comminuting said densified material to produce granulates at the desired size. The invention is particularly useful for delivering new types of breaking agents for stimulation fluids or additives for wellbore cementing. |
申请公布号 |
CA2490077(C) |
申请公布日期 |
2007.12.04 |
申请号 |
CA20032490077 |
申请日期 |
2003.06.12 |
申请人 |
SCHLUMBERGER CANADA LIMITED |
发明人 |
LEE, JESSE;NELSON, ERIK |
分类号 |
C09K8/70;C09K8/516;C09K8/62;C09K8/68;C09K8/92;E21B33/13;E21B43/25;E21B43/26 |
主分类号 |
C09K8/70 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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