Natural Gas Storage Seismic Monitoring - Archive ouverte HAL Access content directly
Journal Articles Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles Year : 2011

Natural Gas Storage Seismic Monitoring

(1) , (2) , (3) , (1)
1
2
3

Abstract

IFP Energies nouvelles, CGGVeritas and GDF Suez have conducted together, since 1980, a series of seismic monitoring experiments in order to detect and follow the movements of the gas plume in natural gas geologic storages. Surface and well seismic surveys were carried out at different stages of the storage life. Permanent receiver arrays have been set down in wells. Permanent sources have been designed. Sources and receivers have been used to follow continuously the storage cycle during several years, providing time measurement accuracy within a tenth of a millisecond. Gas intrusion into an aquifer leads to an increase in the arrival times of reflections beneath the storage reservoir and to a variation of the reflection amplitudes at top and bottom of the reservoirs. Progressive variations of the seismic parameters may be followed during the initial infill period. Further movements of the gas plume with the annual in/out cycles are more difficult to follow, because of the simultaneous presence of gas and water in the pores. Arrival time variations of some tenths of a millisecond may be detected and measured. Saturations, using accurate picking of the arrival times, can be estimated in favourable cases. Because of the higher density of carbon dioxide, when stored in a supercritical phase, sensitivity of the seismic parameters, velocity, density and acoustic impedance to saturation variations will be about twice smaller for CO2 storages than it is for methane.
Fichier principal
Vignette du fichier
ogst09102.pdf (1.63 Mo) Télécharger le fichier
Origin : Publication funded by an institution
Loading...

Dates and versions

hal-01937341 , version 1 (28-11-2018)

Identifiers

Cite

J.L. Mari, F. Huguet, J. Meunier, Marc Becquey. Natural Gas Storage Seismic Monitoring. Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, 2011, 66 (1), pp.9-20. ⟨10.2516/ogst/2009080⟩. ⟨hal-01937341⟩

Collections

IFP OGST
56 View
54 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More