.... It is uncertain how the Arctic Ocean circulation will change. The Antarctic is likely to warm and the precipitation is likely to increase over the continent. It is uncertain to what extent the frequency of extreme temperature and precipitation events will change in the Polar Regions. Mediterranean and Europe...

... on petrophysical parameters of real reservoir, the geological models for wedge and thin-bed are designed, the thin-bed tuning effect is simulated, and the relations between thin-bed tuning and gas charged reservoir with frequency are studied. The result of processed marmousi?model indicates that the high amplitude...

...) observed that when at least two octaves of bandwidth are present in a white, zero-phase, noise-free wavelet, the temporal resolution is determined solely by the maximum frequency component in the wavelet. In towed streamer surveys, that maximum frequency value is largely dictated by ghost filters...

... and where it has not quite succeeded. Seismic attribute analysis has also yielded a map of the average instantaneous frequency within the reservoir interval. Seismic traces windowed over the reservoir have been extracted from the 3D cube and classified into four facies classes using unsupervised vector...

... Reservoir Characterization initial production amplitude resolution migration Upstream Oil & Gas subsurface high temporal resolution karst mapping surface consistent deconvolution frequency mapping carbonate drilling location interpretation forum 3 acquisition Visualization...

... occupational injuries, fatal Lost Time Injury Frequency was 1.94 per incidents and significant incidents. million hours worked, which is 20% better than for 1998 and is the lowest that has been For 1999, two-thirds of the reported hours achieved since recording began. were worked by contractors, reflecting...

... AND METRICS FOR 563 TRACKING PROGRESS IN REDUCING COSTS 4 364 B 4 i M 3 193 A B C O E c m m s r e CdEqav Fig. 2. A 5 x 5 risk matrix. - Identification of the type of hazard involved. - Separate calculation of failure consequence frequency. Tddm 134 At least 80% of your total risk exposure is due to at most 20...

... is stronger than the semi-diurnal component. Variations in electrical observations also correlate with the diurnal tidal component, and are particularly pronounced at source frequencies near 1 Hz and 4 Hz. The magnitude of the electrical variations over the known hydrocarbon deposits, however, were...

..., and premature drillstring component and bit failures. To increase drilling efficiency, drillstring vibrations are monitored and analysed, and the optimum drilling parameters and practices are determined as the well is drilled. This results in a reduction in the frequency of drillstring failures and the amount...

... propagation with extremely low frequency. The prototype has been developed by applying such advanced technologies as high temperature downhole electronics, miniaturized high power EM transmitter, realtime digital de-modulator with adaptive noise cancelling that are required for great endurance under drilling...

... Reservoir Characterization interpolation frequency frequency component Upstream Oil & Gas oil field North China phase time dominant frequency depression seismic data acquisition line grid reflection data acquisition China curved surface wavenumber high frequency component...

...- tion is obtained hydroacoustically and structures the shear layer of the jet into discrete, well-defined ring vortices when the excitation frequency, f, matches the jet s preferred value. This can be obtained by feeding the final jet forming nozzle with various types of acoustic chambers (for example...

... Artificial Intelligence relation seismic response Upstream Oil & Gas seismic data correlation Netherlands Unit II frequency deposition information Reservoir Characterization tidal deposit facies INTERPRETATION expression deposit resolution seismic stratigraphical response...

... Upstream Oil & Gas log facies machine learning frequency facies Reservoir Characterization resolution Artificial Intelligence information reference facies interpreter meride limestone interpretation log analysis new technique lithofacies amplitude limestone characteristic...

... the benefits aimed at by using a shock absorber, these resonance frequencies should be established by calculation or measure- ments, and thereafter avoided. A large part of the literature on drill string vibration and shock absorbers 155 156 NEW TOOLS AND METHODS TO OPTIMIZE DRILLING [io14 deals...

... machine learning Upstream Oil & Gas log analysis exchange cation Artificial Intelligence transport number well logging oil-bearing sand frequency concentration clay content oil saturation shaly sand dependence Waxman conductivity model saturation equation salinity...

... the ratio of the layer velocity, which cannot be altered, to the frequency. To achieve improved resolution it is advantageous to have a . seismic reflection signal resembling a spike with as short as possible wave- length and which is not superimposed by noise. This is obtained, as is generally known...

... and exploration of complex reservoir formations. 2. WIDE-BAND ACOUSTIC LOGGING Wide-band acoustic logging based on the gener- ation and reception of elastic waves in a wide frequency band (0.5-30 KHz) is an efficient method to survey open and cased boreholes. Spectral- temporal analysis allows various types...

... frequency Artificial Intelligence radiation enhanced oil recovery process Steam flood Reservoir Characterization detector receiver EOR Upstream Oil & Gas borehole new technique experiment monitoring active source seismology equation RESERVOIR property ENHANCE PRODUCTION...

... Q- is investigated by means of theoretical, experimental and field observations. Theory relates attenuation losses to the imaginary parts of the compressional and shear modulus and thus to the four seismic parameters V, V,, Q, and Q, Relaxation peaks of O- are found at frequencies from inside...