发明名称 |
SURFACE EXCITATION RANGING SYSTEM FOR SAGD APPLICATION |
摘要 |
A system for ranging between two wellbores where an emitter electrode and return electrode of a current injection system are disposed to drive a current to a conductive member within a target wellbore to create an electromagnetic field about the conductive member. The electromagnetic field is measured utilizing a sensor disposed in an investigative wellbore, which may be in the process of being drilled. In some embodiments, the emitter electrode and return electrode are positioned on the surface of a formation, spaced apart from one another with locations on the surface selected to optimize current, and therefore, the electromagnetic field, at a desired point along the conductive member. In some embodiments, one or both of the emitter electrode and return electrode are positioned in the target wellbore. |
申请公布号 |
EP2929139(A2) |
申请公布日期 |
2015.10.14 |
申请号 |
EP20130861395 |
申请日期 |
2013.12.06 |
申请人 |
HALLIBURTON ENERGY SERVICES, INC. |
发明人 |
DONDERICI, BURKAY;MOSS, CLINTON |
分类号 |
E21B47/01;E21B47/02;E21B47/022;E21B47/0228 |
主分类号 |
E21B47/01 |
代理机构 |
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