RU2007147421A - METHOD OF ELECTROMAGNETIC LOGGING ISOPARAMETRIC PROBING - Google Patents
METHOD OF ELECTROMAGNETIC LOGGING ISOPARAMETRIC PROBING Download PDFInfo
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- RU2007147421A RU2007147421A RU2007147421/28A RU2007147421A RU2007147421A RU 2007147421 A RU2007147421 A RU 2007147421A RU 2007147421/28 A RU2007147421/28 A RU 2007147421/28A RU 2007147421 A RU2007147421 A RU 2007147421A RU 2007147421 A RU2007147421 A RU 2007147421A
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Abstract
1. Способ электромагнитного изопараметрического каротажного зондирования, в котором измерения проводят набором зондов, состоящих из генераторных и измерительных катушек, отличающийся тем, что зондирование выполняют набором из N-го количества 2-х катушечных зондов различной длины: Z1<Z2<Z3<…<ZN-1<ZN, состоящих их одной генераторной и одной измерительной катушки, генераторные катушки зондов питают током различных гармонических частот: ω1>ω2>ω3>…>ωN-1>ωN при равных величинах произведений длины зонда в квадрате на частоту: и измеряют каждой смежной парой зондов Z1 и Z2, Z2 и Z3, …, ZN-1 и ZN пары фаз φ1 и φ2, φ2 и φ3, …, φN-1 и φN несинхронных колебаний ЭДС гармонических частот, по которым вычисляют для каждой пары смежных зондов приведенную разность фаз путем умножения вычитаемой фазы на величину отношения частот большую единицы …; и (или) путем умножения уменьшаемой фазы на величину отношения частот меньшую единицы …; по которым определяют удельную электропроводность среды с большей и (или) меньшей разрешающей способностью. ! 2. Способ по п.1, отличающийся тем, что величины отношения частот для вычитаемой фазы определяют в пределах ! 3. Способ по п.1 и 2, отличающийся тем, что величину отношения частот для уменьшаемой фазы определяют в пределах1. The method of electromagnetic isoparametric well logging, in which the measurements are carried out by a set of probes, consisting of generator and measuring coils, characterized in that the sounding is performed by a set of N-th number of 2 coil probes of different lengths: Z1 <Z2 <Z3 <... < ZN-1 <ZN, consisting of one generator and one measuring coil, the generator coils of the probes supply current with different harmonic frequencies: ω1> ω2> ω3> ...> ωN-1> ωN for equal products of the probe length squared by frequency: and measure each adjacent n a swarm of probes Z1 and Z2, Z2 and Z3, ..., ZN-1 and ZN, the pairs of phases φ1 and φ2, φ2 and φ3, ..., φN-1 and φN of non-synchronous oscillations of the emf of harmonic frequencies, from which the reduced difference is calculated for each pair of adjacent probes phases by multiplying the subtracted phase by a ratio of frequencies greater than one ...; and (or) by multiplying the phase to be reduced by a frequency ratio less than one ...; which determine the electrical conductivity of the medium with a higher and (or) lower resolution. ! 2. The method according to claim 1, characterized in that the magnitude of the frequency ratio for the subtracted phase is determined within! 3. The method according to claim 1 and 2, characterized in that the magnitude of the frequency ratio for the reduced phase is determined within
Claims (3)
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RU2007147421/28A RU2365946C1 (en) | 2007-12-19 | 2007-12-19 | Electromagnetic isoparametric logging method |
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RU2007147421/28A RU2365946C1 (en) | 2007-12-19 | 2007-12-19 | Electromagnetic isoparametric logging method |
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RU2007147421A true RU2007147421A (en) | 2009-06-27 |
RU2365946C1 RU2365946C1 (en) | 2009-08-27 |
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RU2007147421/28A RU2365946C1 (en) | 2007-12-19 | 2007-12-19 | Electromagnetic isoparametric logging method |
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Families Citing this family (1)
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RU2525314C2 (en) * | 2012-06-27 | 2014-08-10 | Федеральное государственное бюджетное учреждение Института нефтегазовой геологии и геофизики им. А.А. Трофимука Сибирского отделения Российской академии наук (ИНГГ СО РАН) | Electromagnetic isoparametric logging method |
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Effective date: 20091220 |
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NF4A | Reinstatement of patent |
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MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20111220 |