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Estimating Compaction and Velocity Changes from Time-Lapse near and far Offset StacksNormal access

Authors: M. Landro and R. Janssen
Event name: 64th EAGE Conference & Exhibition
Session: 4D Time Lapse Analysis
Publication date: 27 May 2002
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 159.31Kb )
Price: € 20

Summary:
P036 ESTIMATING COMPACTION AND VELOCITY CHANGES FROM TIME-LAPSE NEAR AND FAR OFFSET STACKS Abstract 1 For some hydrocarbon reservoirs severe compaction of the reservoir rocks are observed. This compaction is caused by the production and is often associated with changes also for the overburden. Time-lapse seismic data can be used to monitor this compaction process. Since the compaction causes both changes in layer thickness as well as changes in the P-wave velocities it is crucial to obtain methods to distinguish between the to effects. A simple method using travel time changes at near and far offsets is presented. Reliable estimation


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