System for the measurement of electrical characteristics of geological formations from within steel cased wells using magnetic circuits
OwnerJerry R. Montgomery, Sarah Elle Montgomery +1inventors
InventorsJerry R. Montgomery, Sarah Elle Montgomery, Nathan Rich Montgomery
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Abstract
A system for measuring magnetic fields outside a ferromagnetic container from inside the same container is described. The invention uses magneti circuits to direct the flow of magnetic flux to a magnetic field detector. By using magnetic fields for detection, this invention is able to measure the properties of magnetic materials outside the ferromagnetic container, such as a geologic formation, electric or magnetic parameters, or log well and drill holes that have been cased.
Claims3
A system for measuring a magnetic field, comprising:
- (A) a ferromagnetic container;
- (B) a magnetic circuit within said ferromagnetic container, said magnetic circuit further comprising a high permeability shunt and a magnetic flux detector;
- and
- (C) an electric circuit within said ferromagnetic container, wherein said electric circuit is in parallel with said magnetic circuit.
A system for measuring a magnetic field, comprising:
- (A) a ferromagnetic container;
- (B) a magnetic circuit within said ferromagnetic container, said magnetic circuit further comprising a high permeability shunt and a magnetic flux detector;
- and
- (C) an electric circuit within said ferromagnetic container, wherein said electric circuit is in series with said magnetic circuit.
A system for measuring a magnetic field, comprising:
- (A) a ferromagnetic container;
- and
- (B) a magnetic circuit within said ferromagnetic container, said magnetic circuit further comprising a high permeability shunt and a magnetic flux detector and wherein said high permeability shunt is composed of a material selected from the group consisting of mu metal, high silicon transformer steel, permalloy, and supermalloy.
Dependencies are inferred from the claim text.