Predicting reservoir-scale faults with area balance: Application to growth stratigraphy
Journal of Structural Geology
By: R.H. Groshong Jr., J.C. Pashin, B. Chai, and R.D. Schneeflock
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Abstract
A reservoir that appears to lack faults at one scale of resolution or at one sampling density may nevertheless contain faults that are below the resolution of the observations. The area-depth relationship from a balanced cross-section is shown to contain the necessary information for predicting the sub-resolution fault heave. Existing area-depth theory is extended to include growth units, allowing structural length and thickness changes to be separated from the depositional changes. The technique is validated with a numerical model of a growth full graben and a sand-box model of a half graben; then field tested in the Gilbertown graben, a growth structure within the regional peripheral fault trend along the northern margin of the Gulf of Mexico. A cross-section developed from wells alone is used to infer the abundance of sub-resolution faults by the area-balance technique. A small but significant amount of sub-resolution extension is predicted and then confirmed with a high-resolution seismic line. ?? 2003 Elsevier Science Ltd. All rights reserved.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Predicting reservoir-scale faults with area balance: Application to growth stratigraphy |
| Series title | Journal of Structural Geology |
| DOI | 10.1016/S0191-8141(03)00002-6 |
| Volume | 25 |
| Issue | 10 |
| Year Published | 2003 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Structural Geology |
| First page | 1645 |
| Last page | 1658 |
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