发明公开
EP2484857A3 Method and apparatus for performing wireline logging operations in an under-balanced well
审中-公开
基本信息:
- 专利标题： Method and apparatus for performing wireline logging operations in an under-balanced well
- 专利标题（中）：一种用于在非均衡的井筒执行有线协议操作的方法和装置
- 申请号：EP12165965.0 申请日：2008-03-19
- 公开(公告)号：EP2484857A3 公开(公告)日：2016-08-10
- 发明人： Khan, Waqar
- 申请人： Services Pétroliers Schlumberger
- 申请人地址： 42, rue Saint Dominique 75007 Paris FR
- 专利权人： Services Pétroliers Schlumberger
- 当前专利权人： Services Pétroliers Schlumberger
- 当前专利权人地址： 42, rue Saint Dominique 75007 Paris FR
- 代理机构： Ljungberg, Robert
- 主分类号： E21B17/02
- IPC分类号： E21B17/02 ; E21B33/072 ; E21B33/08
摘要：
A method for performing logging operations in an underbalanced horizontal well without killing the well comprising: installing a downhole wet connector head (110) in a logging tool string (100); inserting the downhole wet connector head (110) and tool string (100) into a casing string deployed to a position adjacent a closed downhole deployment valve; installing a cable side door entry sub (16); inserting a wireline (13) to a pump-down wireline connector through the cable side door entry sub (13) and connecting the wire line (13); pumping the pump-down wireline connector to engage the downhole wet connector head (110); adjusting pressure between the underbalanced portion of the previously drilled well and the proximal portion of the drill string (25) above the pressure isolation valve (90); and, opening the closed pressure isolation valve (90) and moving the logging tool string (100) to the total depth to log the well without killing the well.
公开/授权文献:
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 |
| ------E21B17/00 | 钻杆或钻管；柔性钻杆柱；方钻杆；钻铤；抽油杆；套管；管子 |
| --------E21B17/02 | .接箍；接头 |