G:	PHYSICS
G01:	MEASURING (counting G06M); TESTING
G01V:	GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS
G01V1/00:	Seismology; Seismic or acoustic prospecting or detecting
G01V1/00A:	. Acoustic presence detection (measurement of sonic vibrations G01H; alarm systems G08B)
G01V1/00B:	. Seismic data acquisition in general, e.g. survey design G01V1/38B, G01V1/42 takes precedence
G01V1/00B2:	. . with exploration systems emitting special signals, e.g. frequency swept signals, pulse sequences or slip sweep arrangements [M1207]
G01V1/00B3:	. . [N: generating single signals by using more than one generator, e.g. beam steering or focussing arrays (G01V1/13, G01V1/38E takes precedence)]
G01V1/00E:	. Earthquake measurement or prediction event detection for microseismic events G01V1/28D
G01V1/02:	. Generating seismic energy
G01V1/02A:	. . by using more than one generator, other than explosive charge
G01V1/04:	. . Details
G01V1/047:	. . . Arrangements for coupling the generator to the ground
G01V1/047A:	. . . . [N: for controlling "Ground Force"]
G01V1/053:	. . . . for generating transverse waves
G01V1/06:	. . . Ignition devices
G01V1/08:	. . . . involving time-delay devices
G01V1/09:	. . . Transporting arrangements, e.g. on vehicles
G01V1/104:	. . using explosive charges
G01V1/108:	. . . by deforming or displacing surfaces of enclosures
G01V1/112:	. . . . for use on the surface of the earth
G01V1/116:	. . . where pressurised combustion gases escape from the generator in a pulsating manner, e.g. for generating bursts
G01V1/13:	. . . Arrangements or disposition of charges to produce a desired pattern in space or time
G01V1/133:	. . using fluidic driving means, e.g. highly pressurised fluids; using implosion
G01V1/135:	. . . by deforming or displacing surfaces of enclosures , e.g. by hydraulically driven vibroseis™
G01V1/137:	. . . which fluid escapes from the generator in a pulsating manner, e.g. for generating bursts , airguns
G01V1/143:	. . using mechanical driving means e.g. motor driven shaft
G01V1/145:	. . . by deforming or displacing surfaces , e.g. by mechanically driven vibroseis™ [M1207]
G01V1/147:	. . . using impact of dropping masses
G01V1/153:	. . . using rotary unbalanced masses
G01V1/155:	. . . using reciprocating masses
G01V1/157:	. . using spark discharges; using exploding wires
G01V1/159:	. . [N: using piezoelectric or magnetostrictive driving means (generating mechanical vibrations by using piezoelectric or magnetostrictive effect in general, B06B1/06, B06B1/08)]
G01V1/16:	. Receiving elements for seismic signals (electromechanical transducers H04R); Arrangements or adaptations of receiving elements
G01V1/16A:	. . [N: Details]
G01V1/16A1:	. . . [N: Circuits therefore]
G01V1/16A2:	. . . Arrangements for coupling receivers to the ground
G01V1/16D:	. . Deployment of receiver elements G01V1/38D takes precedence
G01V1/18:	. . Receiving elements, e.g. seismometer, geophone or torque detectors, for localised single point measurements
G01V1/18A:	. . . [N: Geophones]
G01V1/18A1:	. . . . [N: with moving coil]
G01V1/18A2:	. . . . [N: with moving magnet]
G01V1/18A3:	. . . . [N: Multi-component geophones]
G01V1/18A4:	. . . . [N: with adaptable orientation, e.g. gimballed]
G01V1/18B:	. . . [N: Hydrophones]
G01V1/18B1:	. . . . [N: Direction-sensitive hydrophones]
G01V1/18B2:	. . . . [N: with pressure compensating means]
G01V1/18C:	. . . [N: Combinations of different types of receiving elements]
G01V1/20:	. . Arrangements of receiving elements, e.g. geophone pattern
G01V1/20B:	. . . Constructional details of seismic cables, e.g. streamers integrated optoseismic systems G01V1/22C; line connectors in general H01R, transducer mountings in general G10K11/00G
G01V1/20B2:	. . . . 42S, G10K)
G01V1/20B3:	. . . . [N: Connectors, e.g. for force, signal or power]
G01V1/20B9:	. . . . [N: having a continuous structure (detecting traffic G08G, transducers in general G10K)]
G01V1/22:	. Transmitting seismic signals to recording or processing apparatus (signal transmitting systems in general G08C; transmission systems in general H04B)
G01V1/22B:	. . Radioseismic systems
G01V1/22C:	. . [N: Optoseismic systems]
G01V1/24:	. Recording seismic data
G01V1/24B:	. . Seismographs
G01V1/24C:	. . Amplitude control for seismic recording control of amplification in general H03G
G01V1/24D:	. . Digital recording of seismic data, e.g. in acquisition units or nodes
G01V1/26:	. . Reference-signal-transmitting devices, e.g. indicating moment of firing of shot
G01V1/28:	. Processing seismic data, e.g. analysis, for interpretation, for correction
G01V1/28B:	. . Application of seismic models, synthetic seismograms
G01V1/28C:	. . Application of the shear wave component and/or several components of the seismic signal
G01V1/28C1:	. . . [N: Mode conversion]
G01V1/28D:	. . [N: Event detection in seismic signals, e.g. microseismics
G01V1/30:	. . Analysis
G01V1/30B:	. . . for determining seismic cross-sections or geostructures
G01V1/30B1:	. . . . [N: in 3D data cubes]
G01V1/30C:	. . . for determining velocity profiles or travel times
G01V1/30C1:	. . . . [N: Travel times]
G01V1/30D:	. . . for determining physical properties of the subsurface, e.g. impedance, porosity or attenuation profiles
G01V1/30E:	. . . [N: for determining seismic attributes, e.g. amplitude, instantaneous phase or frequency, reflection strength or polarity]
G01V1/30F:	. . . [N: Time lapse or 4D effects, e.g. production related effects to the formation (fluid flow per se E21B47)]
G01V1/32:	. . Transforming one recording into another or one representation into another
G01V1/32B:	. . . [N: Transforming one representation into another]
G01V1/34:	. . Displaying seismic recordings or visualisation of seismic data or attributes
G01V1/34B:	. . . [N: Visualisation of seismic data or attributes, e.g. in 3D cubes]
G01V1/36:	. . Effecting static or dynamic corrections on records, e.g. correcting spread; Correlating seismic signals; Eliminating effects of unwanted energy
G01V1/36B:	. . . Effecting static or dynamic corrections; Stacking
G01V1/36B2:	. . . . by numerical procedures
G01V1/36C:	. . . Seismic filtering G01V1/37 takes precedence
G01V1/36C2:	. . . . by correlation of seismic signals
G01V1/36C3:	. . . . Inverse filtering
G01V1/37:	. . . specially adapted for seismic systems using continuous agitation of the ground, e.g. using pulse compression of frequency swept signals for enhancement of received signals
G01V1/37B:	. . . . Correlating received seismic signals with the emitted source signal
G01V1/38:	. specially adapted for water-covered areas ]
G01V1/387:	. . Reducing secondary bubble pulse, i.e. reducing the detected signals resulting from the generation and release of gas bubbles after the primary explosion
G01V1/38B:	. . Seismic data acquisition, e.g. survey design in general G01V1/00B
G01V1/38C:	. . Positioning of seismic devices
G01V1/38C1:	. . . [N: dynamic steering, e.g. by paravanes or birds]
G01V1/38C2:	. . . [N: measuring position, e.g. by GPS or acoustically]
G01V1/38D:	. . [N: Deployment of seismic devices, e.g. of streamers (equipment for marine deployment in general B63B)]
G01V1/38D1:	. . . [N: to the seabed]
G01V1/38E:	. . [N: control of source arrays, e.g. for far field control]
G01V1/393:	. . Means for loading explosive underwater charges, e.g. combined with ignition devices
G01V1/40:	. specially adapted for well-logging
G01V1/42:	. . using generators in one well and receivers elsewhere or vice-versa
G01V1/44:	. . using generators and receivers in the same well
G01V1/46:	. . . Data acquisition
G01V1/48:	. . . Processing data
G01V1/50:	. . . Analysing data
G01V1/52:	. . Structural details
G01V1/52A:	. . . [N: Damping devices]
G01V3/00:	Electric or magnetic prospecting or detecting ; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
G01V3/02:	. operating with propagation of electric current
G01V3/04:	. . using dc
G01V3/06:	. . using ac
G01V3/08:	. operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
G01V3/08B:	. . the magnetic field is produced by the objects or geological structures characterised by the method of magnetic field measurement G01R33/00
G01V3/08C:	. . operating with fields produced by spontaneous potentials, e.g. electrochemical or produced by telluric currents G01V3/26 takes precedence
G01V3/08D:	. . the earth magnetic field being modified by the objects or geological structures
G01V3/08E:	. . operating with electric fields (G01V3/08C takes precedence)
G01V3/08F:	. . [N: Controlled source electromagnetic [CSEM] surveying ]
G01V3/08G:	. . [N: the earth magnetic field being modified by the objects or geological structures]
G01V3/08H:	. . [N: operating with electric fields (G01V3/08C takes precedence)]
G01V3/10:	. . using induction coils
G01V3/10B:	. . . by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil measuring impedance or characteristics derived therefrom G01R27/00, e.g. quality factor G01R27/26
G01V3/10B2:	. . . . by measuring amplitude
G01V3/10C:	. . . using several coupled or uncoupled coils G01V3/10B takes precedence
G01V3/10C2:	. . . . forming directly coupled primary and secondary coils or loops
G01V3/10C2B:	. . . . . using compensating coil or loop arrangements
G01V3/10C3:	. . . . the emitter and the receiver coils or loops being uncoupled by positioning them perpendicularly to each other
G01V3/12:	. operating with electromagnetic waves operating with millimetre waves G01V8/00M
G01V3/14:	. operating with electron or nuclear magnetic resonance
G01V3/15:	. specially adapted for use during transport, e.g. by a person, vehicle or boat
G01V3/16:	. . specially adapted for use from aircraft
G01V3/165:	. . operating with magnetic or electric fields produced or modified by the object or by the detecting device
G01V3/17:	. . operating with electromagnetic waves operating with millimetre waves G01V8/00M
G01V3/175:	. . operating with electron or nuclear magnetic resonance
G01V3/18:	. specially adapted for well-logging
G01V3/20:	. . operating with propagation of electric current
G01V3/22:	. . . using dc
G01V3/24:	. . . using ac
G01V3/26:	. . operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device
G01V3/26B:	. . . Operating with fields produced by spontaneous potentials, e.g. electrochemicals or produced by telluric currents
G01V3/28:	. . . using induction coils
G01V3/30:	. . operating with electromagnetic waves
G01V3/32:	. . operating with electron or nuclear magnetic resonance
G01V3/34:	. . Transmitting data to recording or processing apparatus; Recording data
G01V3/36:	. Recording data
G01V3/38:	. Processing data, e.g. for analysis, for interpretation, for correction
G01V3/40:	. specially adapted for measuring magnetic field characteristics of the earth
G01V5/00:	Prospecting or detecting by the use of nuclear radiation, e.g. of natural or induced radioactivity (determining the properties of materials G01N; measuring nuclear radiation G01T)
G01V5/00D:	. Detecting hidden objects, e.g. weapons, explosives sorting of materials or articles according to radioactive properties B07C5/342; investigating or analysing materials by the use of wave or particle radiation G01N23/00
G01V5/00D2:	. . Active interrogation, i.e. using an external radiation source, e.g. using pulsed, continuous or cosmic rays
G01V5/00D2A:	. . . Measuring scattered radiation
G01V5/00D2B:	. . . Mixed interrogation beams, e.g. using more than one type of radiation beam
G01V5/00D2C:	. . . Multiple energy techniques using one type of radiation, e.g. X-rays of different energies multi-beam applications, e.g. X-rays and neutrons G01V5/00D2B; spectroscopic applications G01V5/00D2
G01V5/00D2D:	. . . using Tomography, e.g. CT or SPECT detector details in CT applications G01T1/29D4
G01V5/00D2E:	. . . using stereoscopic means
G01V5/00D2F:	. . . having relative motion between the source, detector and object other than by conveyor G01V5/00D2D takes precedence
G01V5/00D4:	. . Passive interrogation for hand, feet or portals G01T1/167; for contaminated surface areas G01T1/169
G01V5/00D6:	. . [N: utilizing a network, e.g. a remote expert, accessing remote data or the like]
G01V5/00D8:	. . [N: detecting special nuclear material [SNM], e.g. Uranium-235, Uranium-233 or Plutonium-239 ]
G01V5/02:	. specially adapted for surface logging, e.g. from aircraft
G01V5/02B:	. . specially adapted for use from aircraft
G01V5/04:	. specially adapted for well-logging
G01V5/04B:	. . Transmitting data to recording or processing apparatus; Recording data
G01V5/06:	. . for detecting naturally radioactive minerals
G01V5/08:	. . using primary nuclear radiation sources or X-rays e.g. for inducing radioactivity; investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays, neutrons G01N23/00
G01V5/08B:	. . . using another radioactive source
G01V5/10:	. . . using neutron sources neutron generating tubes H05H5/00; neutron sources using isotopes G21G4/00
G01V5/10B:	. . . . and detecting the secondary Y-rays produced in the surrounding layers of the bore hole
G01V5/10B2:	. . . . . the neutron source being of the pulsed type
G01V5/10C:	. . . . and detecting secondary Y-rays as well as reflected or back-scattered neutrons
G01V5/10C2:	. . . . . the neutron source being of the pulsed type
G01V5/10D:	. . . . and detecting reflected or back-scattered neutrons
G01V5/10D2:	. . . . . the neutron source being of the pulsed type
G01V5/12:	. . . using gamma or X-ray sources gamma sources using isotopes G21G4/00; X-ray tubes H01J35/00
G01V5/12B:	. . . . and detecting the secondary gamma- or X-rays in different places along the bore hole
G01V5/14:	. . . using a combination of several sources, e.g. a neutron and a gamma source
G01V5/14B:	. . . . using a neutron source combined with a gamma- or X-ray source
G01V7/00:	Measuring gravitational fields or waves; Gravimetric prospecting or detecting
G01V7/00B:	. using a resonating body or device, e.g. string G01V7/08 to G01V7/12 take precedence; measuring resonant frequency of mechanical vibrations G01H13/00; measuring frequency per se G01R23/00
G01V7/02:	. Details
G01V7/04:	. . Electric, photoelectric, or magnetic indicating or recording means
G01V7/06:	. . Analysis or interpretation of gravimetric records
G01V7/08:	. using balances
G01V7/10:	. . using torsion balances, e.g. Eötvös balance
G01V7/12:	. using pendulums
G01V7/14:	. using free-fall time
G01V7/16:	. specially adapted for use on moving platforms, e.g. ship, aircraft
G01V8/00:	Prospecting or detecting by optical means
G01V8/00M:	. operating with millimetre waves, e.g. measuring the black losey radiation
G01V8/02:	. Prospecting
G01V8/10:	. Detecting, e.g. by using light barriers
G01V8/12:	. . using one transmitter and one receiver
G01V8/14:	. . . using reflectors
G01V8/16:	. . . using optical fibres
G01V8/18:	. . . using mechanical scanning systems
G01V8/20:	. . using multiple transmitters or receivers
G01V8/22:	. . . using reflectors
G01V8/24:	. . . using optical fibres
G01V8/26:	. . . using mechanical scanning systems
G01V9/00:	Prospecting or detecting by methods not provided for in groups G01V1/00 to G01V8/00
G01V9/00A:	. using fields or radiation detectable only by persons susceptible therefor, e.g. radio-esthesis, dowsing
G01V9/00B:	. by thermal methods, e.g. after generation of heat by chemical reactions
G01V9/00C:	. by detecting gases or particles representative of underground layers at or near the surface analysing earth materials G01N33/24; analysing gases per se G01N
G01V9/02:	. Determining existence or flow of underground water
G01V11/00:	prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 to G01V9/00
G01V11/00B:	. Details, e.g. power supply systems for logging instruments, transmitting or recording data, specially adapted for well logging, also if the prospecting method is irrelevant means for transmitting well survey signals E21B47/12; signal transmission systems in general G08C; transmission in general H04B
G01V11/00B2:	. . Devices for positioning logging sondes with respect to the borehole wall centralising devices for drilling rods or pipes E21B17/10; setting or locking tools in boreholes E21B23/00; Locating objects in boreholes E21B47/09
G01V11/00C:	. using the seismo-electric effect
G01V13/00:	Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by the preceding groups
G01V15/00:	Tags attached to, or associated with, an object, in order to enable detection of the object
G01V99/00:	Subject matter not provided for in other groups of this subclass
G01V99/00B:	. [N: Geomodels or geomodelling, not related to particular measurements]