Steam Injection Seismic Monitoring Experiment

Forgues, Éric; Meunier, J.; Hubans, C.

doi:10.3997/2214-4609.201403930

Cited by 4 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These features enable the system to provide unparalleled sensitivity and capture subtle and rapid reservoir variations which conventional 4D techniques fail to resolve. For example, our monitoring system is able to follow (Forgues et al 2006) the small and rapid reservoir changes that the SAGD process (Steam Assisted by Gravity Drainage) often induces during heavy oil production.…”

Section: Introductionmentioning

confidence: 99%

Seismic Repeatability – Is There a Limit?

Schisselé¹,

Forgues²,

Echappé³

et al. 2009

71st EAGE Conference and Exhibition Incorporating SPE EUROPEC 2009

Self Cite

View full text Add to dashboard Cite

The results of a 13-day seismic monitoring experiment are presented. It consists in 2 permanent piezoelectric sources, one cemented in depth and the other attached to a surface concrete pad and 28 sensors, 14 at the surface and 14 cemented below the weathering zone. To enhance the signal-to-noise ratio, continuous averaging of the individual SP records is performed providing an average daily SP. 4D attributes are measured on these daily averages. The best repeatability is obtained when both sources and sensors are buried with time and amplitude variations of 6 μs and 0.5% respectively. This extremely high precision level is far above what can be expected from the most accurate surface acquisition methods currently available.

show abstract

Section: Introductionmentioning

confidence: 99%

Seismic Repeatability – Is There a Limit?

Schisselé¹,

Forgues²,

Echappé³

et al. 2009

71st EAGE Conference and Exhibition Incorporating SPE EUROPEC 2009

Self Cite

View full text Add to dashboard Cite

show abstract

Tools and Techniques: Marine Seismic Methods

Robertsson

Laws²,

Kragh³

2015

Treatise on Geophysics

View full text Add to dashboard Cite

Time-lapse velocity analysis — Application to onshore continuous reservoir monitoring

et al. 2018

View full text Add to dashboard Cite

In 4D seismic, the velocity model used for imaging and reservoir characterization can change as production from the reservoir progresses. This is particularly true for heavy oil reservoirs stimulated by steam injection. In the context of sparse and low-fold seismic acquisitions, conventional migration velocity analyses can be inadequate because of a poorly and irregularly sampled offset dimension. We update the velocity model in the context of daily acquisitions with buried sources and receivers. The main objective is to demonstrate that subtle time-lapse effects can be detected over the calendar time on onshore sparse acquisitions. We develop a modified version of the conventional prestack time migration to detect velocity changes obtained after crosscorrelation of the base and monitor surveys. This technique is applied on a heavy oil real data set from the Netherlands and reveals how the steam diffuses over time within the reservoir.

show abstract

Steam Injection Seismic Monitoring Experiment

Cited by 4 publications

References 2 publications

Seismic Repeatability – Is There a Limit?

Seismic Repeatability – Is There a Limit?

Tools and Techniques: Marine Seismic Methods

Time-lapse velocity analysis — Application to onshore continuous reservoir monitoring

Contact Info

Product

Resources

About