Systems and methods for remote electromagnetic exploration for mineral and energy resources using stationary long-range transmitters
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G01V-003/08
G01V-003/12
G01V-003/15
G01V-003/38
출원번호
US-0828182
(2015-08-17)
등록번호
US-9507044
(2016-11-29)
발명자
/ 주소
Zhdanov, Michael S.
출원인 / 주소
Technolmaging, LLC
대리인 / 주소
Workman Nydegger
인용정보
피인용 횟수 :
0인용 특허 :
25
초록▼
A method for measuring the resistivity of geologic formations is described. An electromagnetic field may be generated using at least one stationary long-range transmitter. The frequency of the electromagnetic field may be between and/or including the ULF/ELF range. At least one component of the elec
A method for measuring the resistivity of geologic formations is described. An electromagnetic field may be generated using at least one stationary long-range transmitter. The frequency of the electromagnetic field may be between and/or including the ULF/ELF range. At least one component of the electromagnetic field may be measured by land, marine, submarine, and/or airborne receiver. A conductivity distribution may be determined based on the at least one measured component. The determined conductivity distribution may be correlated with geological formations and/or hydrocarbon deposits.
대표청구항▼
1. A system for measuring the resistivity of sea-bed, ice, or geologic formations, the system comprising: at least one stationary long-range transmitter formed by a system of grounded electric bipoles of more than three kilometers in length or formed by a loop of wire with the radius of more than th
1. A system for measuring the resistivity of sea-bed, ice, or geologic formations, the system comprising: at least one stationary long-range transmitter formed by a system of grounded electric bipoles of more than three kilometers in length or formed by a loop of wire with the radius of more than three kilometers,at least one receiver that is remotely located form the at least one stationary long-range transmitter; anda computing system, the computing system comprising: a processor; andone or more physical non-transitory computer readable medium having computer executable instructions stored thereon that when executed by the processor, cause the computing system to perform the following:generate an electromagnetic field using the at least one stationary long-range wherein the frequency of the electromagnetic field is between or including the ULF/ELF range;measure at least one component of the electromagnetic field using the at least one receiver;determine a conductivity distribution based on the at least one measured component; andcorrelate the determined conductivity distribution with geological formations or hydrocarbon deposits. 2. The system of claim 1, wherein generating an electromagnetic field further comprises generating the electromagnetic field over a plurality of frequencies or in the time domain. 3. The system of claim 2, wherein generating the electromagnetic field in the time domain further comprises using a magnetohydrodynamic (MHD) generator. 4. The system of claim 2, wherein measuring at least one component of the electromagnetic field with the at least one receiver further comprises using a receiver that measures the electromagnetic field over a plurality of frequencies or in the time domain. 5. The system of claim 1, wherein generating an electromagnetic field further comprises locating a transmitter on land, on the sea ice, or in the sea. 6. The system of claim 1, wherein measuring at least one component of the electromagnetic field further with the at least one receiver comprises using at least one galvanic receiver or at least one induction receiver. 7. The system of claim 6, further comprising recording the voltage detected in at least one of the receivers. 8. The system of claim 1, wherein measuring at least one component of the electromagnetic field further comprises measuring the amplitude or phase of electromagnetic field. 9. The system of claim 1, wherein using the at least one receiver includes using an underwater survey. 10. The system of claim 9, wherein the underwater survey includes using an underwater survey vehicle selected from the group consisting of a submarine, an autonomous underwater vehicle, and a remotely operated underwater vehicle. 11. The system of claim 1, wherein measuring at least one component of the electromagnetic field with the at least one receiver further comprises using a receiver that measures a magnetic component or electric component of the electromagnetic field. 12. The system of claim 1, wherein determining a conductivity distribution is based on a plurality of measured components of the electromagnetic field and wherein the conductivity distribution is determined by determining at least one transfer function using the plurality of measured components of the electromagnetic field. 13. The system of claim 12, wherein determining at least one transfer function further comprises determining at least one of the following transfer functions selected from the group consisting of: an electric transfer function, a magnetic transfer function, an impedance transfer function, and an admittance transfer function. 14. The system of claim 12, wherein determining at least one transfer function further comprises using a linear relationship between a first component of the electromagnetic field and a second component of the electromagnetic field or using a least-squares method. 15. The system of claim 1, wherein correlating the determined conductivity distribution with geological formations or hydrocarbon deposits further comprises characterizing geologic material, remotely detecting hydrocarbon deposits, or imaging the hydrocarbon deposits. 16. The system of claim 1, wherein correlating the determined conductivity distribution with geological formations or hydrocarbon deposits further comprises determining a three-dimensional conductivity distribution. 17. The system of claim 16, wherein determining a three-dimensional conductivity distribution further comprises using a three-dimensional inversion technique. 18. The system of claim 1, wherein correlating the determined conductivity distribution with geological formations or hydrocarbon deposits further comprises comparing observed data with predicted data. 19. A physical non-transitory computer readable medium having stored thereon computer executable instructions that when executed by a processor cause a computing system to perform a method for measuring the resistivity of geologic formations, the method comprising: generating an electromagnetic field using at least one stationary long-range transmitter, wherein the electromagnetic field is generated by a transmitter formed by a system of grounded electric bipoles of more than three kilometers in length or formed by a loop of wire with the radius of more than three kilometers, wherein the frequency of the electromagnetic field is between or including the ULF/ELF range;measuring at least one component of the electromagnetic field using at least one receiver that is remotely located from the at least one stationary long-range transmitter;determining a conductivity distribution based on the at least one measured component; andcorrelating the determined conductivity distribution with geological formations or hydrocarbon deposits. 20. A system for measuring the resistivity of sea-bed, ice, or geologic formations, the system comprising: at least one undersea communication cable;a plurality of magnetic and/or electric receivers that are located at the sea-bottom and remotely from the at least one undersea communication cable; anda computing system, the computing system comprising: a processor; andone or more physical non-transitory computer readable medium having computer executable instructions stored thereon that when executed by the processor, cause the computing system to perform the following:generate an electromagnetic field using the at least one undersea communication cable carrying a frequency domain current, wherein the frequency of the electromagnetic field is within the ELF range;measure a plurality of components of the electromagnetic field using the plurality of magnetic and/or electric receivers that are located at the sea-bottom, wherein the plurality of receivers measure the electromagnetic field over a plurality of frequencies;determine at least one transfer function based on the plurality of measured components, wherein at least one of the following transfer functions is selected from the group consisting of: an electric transfer function, a magnetic transfer function, an impedance transfer function, and an admittance transfer function is determined;correlate the determined at least one transfer function with geological formations and/or hydrocarbon deposits by determining a three-dimensional conductivity distribution using a three-dimensional inversion technique based on a regularized three-dimensional focusing nonlinear inversion of the plurality of measured components of the electromagnetic field;compare observed data with predicted data by minimizing a parametric functional using gradient type methods and/or a misfit functional and a stabilizer; andstack the plurality of measured components of the electromagnetic field with a corresponding plurality of measured components of the electromagnetic field measured at another period.
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