发明公开
EP3274550A1 SURFACE EXCITATION RANGING METHODS AND SYSTEMS EMPLOYING A GROUND WELL AND A SUPPLEMENTAL GROUNDING ARRANGEMENT
审中-公开
基本信息:
- 专利标题： SURFACE EXCITATION RANGING METHODS AND SYSTEMS EMPLOYING A GROUND WELL AND A SUPPLEMENTAL GROUNDING ARRANGEMENT
- 专利标题（中）：采用地面井和补充地面布置的地面激励测距方法和系统
- 申请号：EP15886659.0 申请日：2015-03-25
- 公开(公告)号：EP3274550A1 公开(公告)日：2018-01-31
- 发明人： WU, Hsu-Hsiang , AHMADI KALATEH AHMAD, Akram
- 申请人： Halliburton Energy Services, Inc.
- 申请人地址： 3000 N. Sam Houston Parkway E. Houston, TX 77032-3219 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： 3000 N. Sam Houston Parkway E. Houston, TX 77032-3219 US
- 代理机构： McWilliams, David John
- 国际公布： WO2016153504 20160929
- 主分类号： E21B47/02
- IPC分类号： E21B47/02 ; E21B47/09 ; G01V3/18
摘要：
A surface excitation ranging method includes selecting a first well with a metal casing as a target well and selecting a second well with a metal casing as a ground well. The method also includes installing a supplemental grounding arrangement for a power supply located at earth's surface, wherein the ground well and the supplemental grounding arrangement fulfill an impedance criteria or ranging performance criteria. The method also includes conveying an electrical current output from the power supply along the target well. The method also includes sensing electromagnetic (EM) fields emitted from the target well due to the electrical current. The method also includes using distance or direction information obtained from the sensed EM fields to guide drilling of a new well relative to the target well.
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 |
| ------E21B47/00 | 测量钻孔或井 |
| --------E21B47/02 | .斜度或方向的确定 |