The current price of crude oil makes it practical to explore for smaller reservoirs using more expensive techniques. Several techniques are discussed in this lecture which would not have been possible ten years ago for both economic and technical reasons.

Three-dimensional seismic methods add new dimensions to the amount of data collected, processed, and interpreted. Examples are given of 3-D field data and interpretations.

Signbit data recording adds a new dimension to the number of seismic traces that can be recorded, with a loss of amplitude information. Examples of field and model data are used to illustrate some of the advantages and disadvantages of this technique.

Color displays add a new dimension to the information content of a seismic cross section. Examples are shown of some conventional and unconventional displays.

Attributes other than amplitude and phase are shown to have promise in locating hydrocarbons.

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