About This Item
- Full TextFull Text(subscription required)
- Pay-Per-View PurchasePay-Per-View
Purchase Options Explain
Share This Item
The AAPG/Datapages Combined Publications Database
AAPG Special Volumes
Abstract
Chapter from:
(Publication Subject: 
Fault
Leak Controlled Trap Fill: Rift Basin Examples
Chapter 9
Fault Leak Controlled Trap Fill: Rift Basin
Examples
D.M. Allard
Exxon Ventures (CIS) Inc. Houston, Texas, U.S.A.
ABSTRACT
Interpretation of fault leak and seal enhances the
understanding of hydrocarbon reservoir systems. Useful applications exist for both field
development and seal risk evaluation for undrilled exploration prospects.
Basic fault seal data (e.g., logs, lithology from wells, stratigraphic models of
lithology variation away from well control, interpretations of bed juxtapositions across
the fault plane, and basic well test results) are needed for the interpreter to resolve
the puzzle of trap fill limits and possible different reservoir systems within the same
faulted field. Interpretation of both productive and tested wet structures allows for the
development of conclusions that may be applicable to different proven or potential traps
across the basin.
A refined understanding of trap fill limits and hydrocarbon distribution within a field
may be gained by interpretation and calibration of fault gouge as a seal on a basinwide
basis. Evaluation of fault gouge as a seal with the displaced section analysis methodology
is labor intensive and may not always be an effective exploration tool, considering the
data control needed to develop reliable results.
In exploration, the quality of fault seal interpretation for an undrilled structure is
dependent on map quality, well control, and the ability to predict stratigraphic facies
changes away from wells. The minimum calibration requirement for exploration applications
of a fault seal interpretation of an undrilled structure is to have completed
interpretations of bed juxtapositions across the fault
plane(s) for both productive and
nonproductive structures elsewhere in the basin.
Pay-Per-View Purchase Options
The article is available through a document delivery service. Explain these Purchase Options.
| Watermarked PDF Document: $14 | |
| Open PDF Document: $24 |