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Abstract

The identification of potential hazards for any drilling programme has traditionally ben carried out using 2D High Resolution (or Ultra-High Resolution) Seismic Site Surveys, with lines acquired as a grid over the proposed drilling location. Recently this is changing and it is becoming apparent that many potential drilling hazards, primarily shallow gas, can be identified on 3D exploration seismic data (Gallagher 1991 ; Newman 1990). However, there are some limitations to the use of the low frequency seismic data for the study of the shallow sequence, as it is acquired principally with the aim of resolving deeper reservoir related structures. These will be discussed using examples of both 2D Site survey data and 3D Exploration seismic data which has been collected at the Heidrun Field.

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/content/papers/10.3997/2214-4609.201411359
1993-06-08
2024-03-29
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