发明名称 |
Flow Induced Electrostatic Power Generator For Tubular Segments |
摘要 |
The present invention is directed to methods for harnessing flow-induced electrostatic energy in a tubular length and using this energy to power electrical devices (e.g., flowmeters, electrically-actuated valves, etc.). The present invention is also directed to corresponding systems through which such methods are implemented. |
申请公布号 |
US2014202705(A1) |
申请公布日期 |
2014.07.24 |
申请号 |
US201414224312 |
申请日期 |
2014.03.25 |
申请人 |
Tosi Luis Phillipe Costa Ferreira;Cornette H. Mitchell;Underdown David R. |
发明人 |
Tosi Luis Phillipe Costa Ferreira;Cornette H. Mitchell;Underdown David R. |
分类号 |
E21B41/00;E21B43/00 |
主分类号 |
E21B41/00 |
代理机构 |
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代理人 |
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主权项 |
1. A method of powering a device in a tubular length through generation of electrostatic energy locally to said device, the tubular length comprising a plurality of tubular segments disposed therewithin and connected in series along so as to form a well, pipeline, or refinery tubing, said method comprising the steps of:
a) flowing a substantially non-conductive hydrocarbon-based fluid, as a flowstream, through a designated tubular segment that is electrically-isolated from adjacent tubular segments to which it is connected, wherein the non-conductive hydrocarbon-based fluid has a relative permittivity of between 2 and 40; b) generating a net, steady-state electrostatic potential between the flowstream and said designated tubular segment; c) harvesting electrical energy from the electrostatic potential via a ground electrode in electrical contact with the flowstream and an electrical lead in electrical contact with the designated tubular segment; and d) using the electrical energy harvested in step (c) to power one or more devices downhole. |
地址 |
Houston TX US |