基本信息:
- 专利标题： CASING FILL-UP FLUID MANAGEMENT TOOL
- 申请号：EP11755602.7 申请日：2011-03-21
- 公开(公告)号：EP2547857B1 公开(公告)日：2018-09-12
- 发明人： SLACK, Maurice William , ALLEN, Matthew
- 申请人： Noetic Technologies Inc.
- 申请人地址： 4110-56 Avenue NW Edmonton, Alberta T6B 3R8 CA
- 专利权人： Noetic Technologies Inc.
- 当前专利权人： Noetic Technologies Inc.
- 当前专利权人地址： 4110-56 Avenue NW Edmonton, Alberta T6B 3R8 CA
- 代理机构： D Young & Co LLP
- 优先权： US315588P 20100319
- 国际公布： WO2011113155 20110922
- 主分类号： E21B21/10
- IPC分类号： E21B21/10 ; E21B34/06 ; E21B33/12 ; E21B33/16
摘要：
A fluid management tool for introducing fluids into a casing string incorporates a mud saver valve configured to open and allow fluid flow in response to fluid flow pressure reaching a predetermined opening pressure, and will automatically close when fluid flow pressure is reduced to or below a predetermined closure pressure, thereby preventing fluid spillage when the tool is withdrawn from the casing. The mud saver valve includes a mud saver spool having a slotted spool cage and being axially movable within a longitudinal bore in the main body of the tool, between an upper or open position in which fluid can flow out of the spool cage and into a discharge bore at the lower end of the main body, and a lower or closed position in which the lower end is seated against the exit bore to prevent flow therethrough. A check valve may be incorporated into the lower end of the mud saver spool. The fluid management tool also may incorporate a main seal and air bleed valve subassembly and a secondary suction seal and check valve subassembly.
公开/授权文献:
- EP2547857A1 CASING FILL-UP FLUID MANAGEMENT TOOL 公开/授权日：2013-01-23
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 |
| ------E21B21/00 | 冲洗井眼的方法或设备，例如，通过利用发动机排出的尾气 |
| --------E21B21/10 | .钻井液循环系统的阀装置 |