Tectonostratigraphic Analysis through to Petroleum Systems Evaluation
This is achieved by synthesising the tectonic, structural, and depositional history of each basin in order to summarise proven plays and identify new play concepts as a predictive tool for the assessment of future prospectivity and the identification of regional play fairway trends.
Integrated with field, well and seismic data, the structure, stratigraphy, and deformational state of each basin are stored in GIS format, providing a powerful means for spatial and temporal relationships associated with petroleum systems to be observed.
This digitally captured and databased information thus provides a “tectonostratigraphic database” for the entire region, that can be used as a fundamental platform for basin-scale play fairways and petroleum system analyses.
We specialise in:
Providing an insight into the mechanistic behaviour of the basin’s development and its tectonostratigraphic history, and what this can tell us about its petroleum systems and hydrocarbon prospectivity.
- Graben and half-graben development
- Strain rate, accommodation space, and strain partitioning of the rift system
- Distribution of its principal source rocks
- Sites of sediment deposition
- Timing and location of clastic influx and its influence on source rock quality
- Controls on source rock maturation history
- Crustal heat flow and the timing of sediment burial
- Temporal and spatial relationships of its essential play elements
Detailed GIS-based geological and structural mapping, in conjunction with tectonic and basin dynamic modelling, as a means of defining the tectonostratigraphic history of a region and its basins
- GIS-based geological and structural mapping and modelling
- Based on outcrop, well and seismic data
- Detailed comprehensive, fully attributed coverages that are referenced sourced
- Structural modelling, including restoration balancing and kinematic analysis
- Tectonic modelling
- Evaluation of proposed alternative models
- Preferential selection of the most attractive elements from each mode
- Integration of the detailed mapping and modelling to create a new tectonic model
- Basin dynamic modelling
- To create a series of maps to illustrate subsidence history that show the distribution and timing of extensional activity and distribution of different crustal types
- Combined with bathymetry and basement depth, these are used to produce β values that can be used in a predictive sense to estimate and map palaeo-heatflow gradients for selected source rocks
- Recognising principal phases of subsidence, with particular focus on the thermal maturation history of key source rock intervals
- Tectonostratigraphic analysis
- Palaeodrainage analysis to identify areas of significant onshore uplift (hinterland evolution), sediment influx patterns and predicted reservoir distribution, and past drainage networks
- Palaeodepositional time-slice work for selected source and reservoir intervals for predicting distribution and quality
|
