发明名称 |
Method for determining geological surface and subsurface resistivity |
摘要 |
A method for determining geological subsurface resistivity. The method includes obtaining a set of lightning parameters associated with a lighting strike received by a geological volume of material, the set of lightning parameters including an indicium of the current of the lightning strike at a first initial time and an indicium of the current of the lightning strike at a first decay time subsequent to the first initial time, and inferring the resistance of the volume of geological material, at least in part, from the set of lightning parameters. |
申请公布号 |
US9523785(B2) |
申请公布日期 |
2016.12.20 |
申请号 |
US201414451074 |
申请日期 |
2014.08.04 |
申请人 |
Dynamic Measurement, LLC |
发明人 |
Denham L. R.;Nelson, Jr. H. Roice;Siebert D. James |
分类号 |
G01V3/00;G01V3/02;G01R29/08;G01R31/02;G01R31/26 |
主分类号 |
G01V3/00 |
代理机构 |
Portland Intellectual Property, LLC |
代理人 |
Portland Intellectual Property, LLC |
主权项 |
1. A method for determining the electrical resistance of a geological volume of material that has received a first lightning strike, comprising obtaining a first set of lightning parameters including an indicium of the current of the first lightning strike at a first initial time and an indicium of the current of the first lightning strike at a first decay time subsequent to the first initial time, and making a first inference of the resistance, at least in part, by employing the first set of lightning parameters in a circuit approximation of a natural system in which a cloud develops a negative charge relative to the earth defining a voltage therebetween, the natural system including an atmosphere between the cloud and the earth in which no current flows until the voltage becomes high enough to produce a lightning strike, the circuit comprising first, second, and third nodes representing, respectively, the cloud, a surface of the geological volume of material that receives the lightning strike, and an earth ground, a capacitor coupled between the first and second nodes representing electrical charge storage in the cloud and the earth, and a resistor coupled between the second and third nodes representing said resistance. |
地址 |
Cedar City UT US |