发明公开
EP1706582A1 METHODS OF CEMENTING IN SUBTERRANEAN FORMATIONS USING CRACK RESISTANT CEMENT COMPOSITIONS
审中-公开
基本信息:
- 专利标题： METHODS OF CEMENTING IN SUBTERRANEAN FORMATIONS USING CRACK RESISTANT CEMENT COMPOSITIONS
- 专利标题（中）：方法凝成地下岩层用break SAFE黏结剂组合物
- 申请号：EP04806137.8 申请日：2004-12-17
- 公开(公告)号：EP1706582A1 公开(公告)日：2006-10-04
- 发明人： RODDY, Craig, W. , TODD, Bradley, L.
- 申请人： HALLIBURTON ENERGY SERVICES, INC.
- 申请人地址： P.O. Box 1431 Duncan, Oklahoma 73533 US
- 专利权人： HALLIBURTON ENERGY SERVICES, INC.
- 当前专利权人： HALLIBURTON ENERGY SERVICES, INC.
- 当前专利权人地址： P.O. Box 1431 Duncan, Oklahoma 73533 US
- 代理机构： Curtis, Philip Anthony
- 优先权： US769490 20040130
- 国际公布： WO2005073504 20050811
- 主分类号： E21B33/13
- IPC分类号： E21B33/13 ; C04B28/04
摘要：
The present invention relates to subterranean cementing operations, and more particularly, to methods of cementing in subterranean formations using cement compositions that autogenously cure voids that may form in such cement compositions. In one embodiment, the present invention provides a method of cementing in a subterranean formation penetrated by a well bore comprising the steps of: placing a cement composition into the well bore, wherein the cement composition comprises a first cementitious component having a first set time and a second cementitious component having a second set time that is delayed relative to the first set time of the first cementitious component; allowing the first cementïtious component to at least partially set; and allowing the second cementitious component to set after a delay period.
IPC结构图谱:
| E | 固定建筑物 |
| --E21 | 土层或岩石的钻进；采矿 |
| ----E21B | 土层或岩石的钻进；从井中开采油、气、水、可溶解或可熔化物质或矿物泥浆 |
| ------E21B33/00 | 井眼或井的密封或封隔 |
| --------E21B33/02 | .地面密封或封隔 |
| ----------E21B33/13 | ..用于封堵井眼、裂隙或类似情况的注水泥方法或装置 |