Real-Time Seismic Surveillance of Thermal EOR at Peace River

López, Jorge L.; Wills, P.; Follett, Jon R. La; Barker, Timothy; Yang, Xue; Przybysz-Jarnut, J. K.; Potters, J. H. H. M.; Lokven, M. van; Brouwer, D.R.; Berron, Cécile

doi:10.2118/174459-ms

Cited by 19 publications

(12 citation statements)

References 10 publications

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“…An excellent learning opportunity is provided by the on-going continuous monitoring trial (Lopez et al, 2015b) at Peace River Pad 31, Canada, where bitumen production has been stimulated by assorted steam injection schemes for over a decade (pictorial inserts in Figure 1 show the current situation at Pad 31). The SeisMovie ® system installed there is the world's largest permanent reservoir monitoring system onshore, in operation since April 2014.…”

Section: Deriving Value From Frequent 4d: Ability To Influence Operatmentioning

confidence: 99%

“…Onshore, Shell pioneered continuous seismic monitoring with permanent sources and receivers (with the SeisMovie® system of CGG) through a staircase of field trials (Lopez et al, 2015a) culminating in the ongoing steam injection monitoring at Peace River, Canada -the world's largest Permanent Reservoir Monitoring (PRM) operation onshore (Lopez et al, 2015b).…”

Section: Introductionmentioning

confidence: 99%

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Frequent Seismic Monitoring for Pro-Active Reservoir Management

Mateeva

Hornman

Hatchell

et al. 2015

SEG Technical Program Expanded Abstracts 2015

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Beyond exploration, the most important role for geophysics in the oil and gas industry is to influence field operations, so that the value of existing assets is fully realized. The recent trend in time-lapse seismic has been toward very frequent reservoir monitoring, with the aspiration to optimize both near-and long-term field management. In this paper we describe steps taken by Shell to tackle the main challenges of frequent seismic monitoring -cost, intrusiveness, and value realization. Offshore, cost reductions can be achieved through novel types of receivers and more efficient vessel utilization. Onshore, cost and footprint reductions are sought through novel survey designs, including fiber-optic DAS cables, sparse geometries, and movable subsurface sources. A demonstration of value is currently pursued through a large onshore trial of continuous monitoring of steam injection at Peace River, Canada, active since 2014. Initial results indicate that steam non-conformance can be diagnosed, remediation actions taken, and their effectiveness evaluated. Inter-disciplinary collaboration is a must. The associated workflow for assimilating frequent seismic data continues to develop and should benefit future monitoring projects both onshore and offshore. Offshore SEG New Orleans Annual Meeting

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Section: Deriving Value From Frequent 4d: Ability To Influence Operatmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Frequent Seismic Monitoring for Pro-Active Reservoir Management

Mateeva

Hornman

Hatchell

et al. 2015

SEG Technical Program Expanded Abstracts 2015

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“…It is the smallest of the four large deposits of oil sands of the Western Canadian Sedimentary Basin formation. It contains large amount of bitumen deposit of 7~10 API degrees with in-place reserve of 155 billion barrels (Zhou, et al, 2007;Lopez, et al, 2015). The oil mainly located in the lower Cretaceous Bluesky formation with siliciclastic sediments deposited in a marginal marine setting.…”

Section: Introduction Of the Peace River Reservoirmentioning

confidence: 99%

“…The Pad 31 is the focus of this study. and sensors were used to monitor the reservoir on a daily basis (Hetz et al, 2017;Lopez et al, 2015). The recorded seismic data is translated into time shift maps, expressing the travel time changes in the seismic wave propagation across the entire reservoir between a chosen baseline survey (i.e.…”

Section: Introduction Of the Peace River Reservoirmentioning

confidence: 99%

“…The red color in the Figure 3.4 represents the velocity "slow down" while the blue color indicates the velocity "speed up". Previous studies (Lopez et al, 2015 interpreted the velocity "slow down" as a result of the increases in the reservoir pressure (pulling sand grains apart) or the increases in the temperature (softening the cold bitumen) or replacement of "harder" for "softer" reservoir fluids (e.g. water or oil being displaced by gas coming out of solution).…”

Section: Introduction Of the Peace River Reservoirmentioning

confidence: 99%

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Integration of time-lapse seismic data using the onset time approach: The impact of seismic survey frequency

Liu

Chen

Hetz

et al. 2020

Journal of Petroleum Science and Engineering

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The seismic inversion method using the seismic onset times has shown great promise for integrating frequent seismic surveys for updating geologic models. However, due to the high cost of seismic surveys, frequent seismic surveys are not commonly available. In this study, we focus on analyzing the impact of seismic survey frequency on Also, I would like to thank my co-chair, Dr. Michael J. King and my committee member Dr. Debjyoti Banerjee, for their guidance and support throughout the course of this research. Thanks also go to my MCERI colleagues, especially Gill Hetz, Hongquan Chen, Xu Xue, Rongqiang Chen, Atsushi Iino, Hyunmin Kim etc. I would like to thank them for their patient teaching and guidance throughout my research work. Moreover, I would like to thank Ms. Phaedra Hopcus for her generous help with all my life and study. Additionally, I would like to thank my friends at TAMU for their friendship and help during my stay in the United States.

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Using onset times from frequent seismic surveys to understand fluid flow at the Peace River Field, Canada

Hetz¹,

Datta‐Gupta

Przybysz-Jarnut

et al. 2020

Geophysical Journal International

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Summary Our limited knowledge of the relationship between changes in the state of an aquifer or reservoir and the corresponding changes in the elastic moduli, that is the rock physics model, hampers the effective use of time-lapse seismic observations for estimating flow properties within the Earth. A central problem is the complicated dependence of the magnitude of time-lapse changes on the saturation, pressure, and temperature changes within an aquifer or reservoir. We describe an inversion methodology for reservoir characterization that uses onset times, the calendar time of the change in seismic attributes, rather than the magnitude of the changes. We find that onset times are much less sensitive than magnitudes to the rock physics model used to relate time-lapse observations to changes in saturation, temperature and fluid pressure. We apply the inversion scheme to observations from daily monitoring of enhanced oil recovery at the Peace River field in Canada. An array of 1492 buried hydrophones record seismic signals from 49 buried sources. Time shifts for elastic waves traversing the reservoir are extracted from the daily time-lapse cubes. In our analysis 175 images of time shifts are transformed into a single map of onset times, leading to a substantial reduction in the volume of data. These observations are used in conjunction with bottom hole pressure data to infer the initial conditions prior to the injection, and to update the reservoir permeability model. The combination of a global and local inversion scheme produces a collection of reservoir models that are best described by 3 clusters. The updated model leads to a nearly 70 per cent reduction in seismic data misfit. The final set of solutions successfully predict the observed normalized pressure history during the soak and flow-back into the wells between 82 and 175 days into the cyclic steaming operation.

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Real-Time Seismic Surveillance of Thermal EOR at Peace River

Cited by 19 publications

References 10 publications

Frequent Seismic Monitoring for Pro-Active Reservoir Management

Frequent Seismic Monitoring for Pro-Active Reservoir Management

Integration of time-lapse seismic data using the onset time approach: The impact of seismic survey frequency

Using onset times from frequent seismic surveys to understand fluid flow at the Peace River Field, Canada

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