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...-D data]]. The recipes described on the pages that follow apply to hand or computer work. | Classic || Mapping a surface of interest (from data) using [[Average velocity|average velociti

...[[traveltime]], [[amplitude]], and [[waveform]] information. [[Structure]] mapping involves only the traveltimes, [[stratigraphy]] involves both traveltime an ...cube and find out where it goes—this is [[Seismic structure map|structure mapping]]. We also keep track of how dark the chocolate is as we follow it—this i

| chapter = Mapping with two-dimensional seismic data ==Mapping two-way time==

...m. This includes [[data management]], [[data preparation]], and [[computer mapping]]. ...Predicts how much oil and gas a field is likely to produce, and may use a computer simulation of [[Conducting a reservoir simulation study: an overview#Predic

# Use computer simulations based on empirical data to predict the geology—especially [[p ...of the potentially sand-prone interval. In concert with prospect mapping, mapping of deep penetrating fault and salt patterns as potential migration avenues

| part = Integrated computer methods | chapter = Introduction to contouring geological data with a computer

...]). This verifies the seismic signature of the target, the location of the mapping horizon, and the adequacy of the time-depth functions. Varying the syntheti ...erpretations on paper, however, can always be digitized later for computer mapping or incorporation into a workstation project.

| part = Integrated computer methods ...ny other. Nevertheless, it is worthwhile to summarize the current state of computer applications and identify the key components of a workstation.

...m on interpretation rather than straightforward plotting of precise data. “Mapping” is here limited to projections in plan view. ==Mapping surfaces==

| part = Integrated computer methods | chapter = Using and improving surface models built by computer

* Much better areal mapping of [[fault]] patterns and connections and delineation of [[reservoir]] bloc ...investigate the interior of the cube. This is done almost universally on a computer to process the massive amounts of data involved. A 3-D data set can range

| part = Integrated computer methods ...rerecording for delivery to the client. When digital data are read into a computer by a LAP, they are automatically converted to the LAP's internal data forma

Seismic surveys are not particularly helpful in mapping normal faults because they are [[Fault trap regime|listric]] with about 100 ...as]] surveys—have proven useful in exploring for these types of traps. The computer compares hundreds of soil-gas ratios very quickly. Also, very sensitive [[c

The more control the geoscientist has in mapping the subsurface, the greater the accuracy of the maps. Control can be increa * A computer program computes the acoustic impedance log from the sonic velocities and t

...in computer generation of geological maps. Trend surface analysis, another mapping technique, is also based on the principles of least-squares fitting. Finall

==Use of analogs for lithofacies mapping== ...datapages.com/data/bulletns/1994-96/data/pg/0080/0001/0000/0016.htm Facies mapping from three-dimensional seismic data: Potential and guidelines from a Tertia

...nd-error process. If done manually, it is tedious and very time consuming. Computer programs greatly simplify the measurement and drafting aspects of cross sec ...B. H. Harahap, 1991, Lengguru, Irian Jaya: prospect selection using field mapping, balanced cross sections, and gravity modeling: Proceedings of the Indonesi

One senses the massive scale of the computer intensive two-dimensional mapping involved in the transformation from unmigrated to migrated data in [[:file: All current computer-based approaches to migration involve this backward solution to the wave eq

| part = Integrated computer methods ...mplitude reference<ref name=pt08r10>Howell, G. S., Pepper, R. E. F., 1988, Mapping seismic amplitude and seismic attributes: Reflections, Southeastern Geophys

...nd with four-arm and six-arm tools. In these cases, a stochastic or global mapping approach is more effective in that it uses the redundancy to advantage in m ...ill usually be similar to the deviation of the borehole. A number of other computer generated presentations have been introduced. Many are useful in special si

...can handle structural analysis of 2-D sections and maps. Most recently as computer power increased and algorithms enhanced, commercial software applications a ...aps, quantified analysis of basin extension/compression, and stress/strain mapping and simulation. If the results are not valid, then seismic reinterpretation

The computer can efficiently measure the change in [[amplitude]] across the offsets of a * [[Seismic data - mapping with two-dimensional data]]

...ponses, as they would appear in a horizontal trajectory, can be created by computer modeling. If the geologist thinks that the well is above the target zone, t ...ns/1998/09sep/1627/1627 High-resolution stratigraphy and seismic attribute mapping of a fluvial reservoir: Middle Jurassic Ness Formation, Oseberg field]: AAP

...ponses, as they would appear in a horizontal trajectory, can be created by computer modeling. If the geologist thinks that the well is above the target zone, t ...998/09sep/1627/1627.htm High-resolution stratigraphy and seismic attribute mapping of a fluvial reservoir: Middle Jurassic Ness Formation, Oseberg field]: AAP

==Mapping faults== ...ithm around faults can sometimes be rather untidy. It is not unusual for a computer map to show spurious fault reversal along the length of the fault. Thus, it

...r data files or as data on a computer shared drive. Data files stored on a computer should be labeled with the originator's initials, a date, and some idea of The seismic data are interpreted with the principal objective of mapping out the structure of the reservoir. If the top of the reservoir gives a usa