- Home
- Conferences
- Conference Proceedings
- Conferences
First EAGE International Conference on Fault and Top Seals - What do we know and where do we go?
- Conference date: 08 Sep 2003 - 11 Sep 2003
- Location: Montpellier, France
- ISBN: 978-90-73781-32-0
- Published: 08 September 2003
61 - 66 of 66 results
-
-
Brittleness Index - A Tool to Quantify the Propability of Dilatant Fracturing in Mudrock Topseals
Authors E. Hoogerduijn-Strating and J. L. UraiOne of the characteristics of good top seal lithologies is their ability to undergo deformation without the formation of permeable fracture networks. This property is often loosely called ductility.
-
-
-
Sealing Quality Analysis of Faults and Formations by Means of Seismic Attributes and Neural Networks
More LessA seismic interpretation technique aimed at predicting effective seals and assessing the risk of seal failure is presented. The method integrates seisrnic chimney cubes, fault cubes, pressure information, well data and other relevant information. Chimney cubes reveal subtle vertical disturbances in the seismic response that can often be interpreted in terms of hydrocarbon migration paths. Linking chimneys to seepage-related features such as pockmarks and mud-volcanoes is an established way of calibrating the interpretation. Visually comparing time-slices through the chimney cube with slices thought the fault cube is the way to distinguish between sealing and leaking faults. This paper describes the methodology and shows various interpretation examples.
-
-
-
Fault Gouge Evolution in Layered Sand-Clay Sequences - First Results of Water-Saturated Sandbox Experiments
Authors J. Schmatz, M. Holland, W. van der Zee and J. L. UraiWe present first results of model experiments aimed at better understanding of clay smear processes in layered sand-clay sequences. The apparatus is a version of the conventional 2D sandbox with transparant glass windows, modified to operate under water.
-
-
-
Fault Seal Prediction I - Geological Variables and Uncertainties
Prediction of fault seal involves the evaluation of a mutli-component system where it is unusual for the variables to be defined in detail. Successful workflows require amalgamation of data from a range of sources and careful evaluation of the associated uncertainties. Definition of the uncertainty ranges and distribution types, for the different required inputs is essential for robust and realistic prediction. We will review; a) the need to constrain the geometrical uncertainties associated with mapping structures and predicting sedimentary architectures in geo-models, and b) the importance of defining the geo-settings and geohistories for fault property assessment.
-
-
-
Fault Seal Prediction II - Uncertainities in Petrophysical Properties and Calibration of Methodologies
Authors Q. J. Fisher and R. J. KnipeA substantial amount of research has been conducted to develop methodologies that can be used to predict the fluid flow properties of faults in petroleum reservoirs. Much of this research has been focused in two directions. First, to provide data that engineers can use to model the fluid flow behaviour of faults within reservoirs. Second, to predict the position and size of traps, which have faults as their primary seal.
-
-
-
Calculation of Fault Sealing Risk & Probabilistic Column Hight Prediction in Frontier Exploration
Authors C. Sanders, T. Murray, G. Christie and B. CamacUsing a new probabilistic fault reservoir modeling tool we have conducted studies on a set of 5 African rift basin prospects. The modeling technique is based on a representation of the fault and reservoirs as a set of polynomial equations. Reservoirs & seals are described via thickness & Vshale .The fault geometry is defined by its length, maximum throw (magnitude & position), dip, strike and damage zone width.
-