Mapping the fluid front and pressure buildup using 4D data on Norne Field

Osdal, B.; Husby, Oddvar; Aronsen, Hans; Chen, Nan; Alsos, T.

doi:10.1190/1.2349818

Cited by 48 publications

(28 citation statements)

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“…Osdal et al . () and Aarre () provide detailed descriptions of the field geology, its production history, seismic data acquisition, and processing and some preliminary interpretation of the observed time‐lapse seismic amplitudes.…”

Section: Methodology and Datasetsmentioning

confidence: 99%

Sub‐sample time shift and horizontal displacement measurements using phase‐correlation method in time‐lapse seismic

Tomar

Singh

Montagner

2016

Geophysical Prospecting

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Hydrocarbon production and fluid injection affect the level of subsurface stress and physical properties of the subsurface, and can cause reservoir‐related issues, such as compaction and subsidence. Monitoring of oil and gas reservoirs is therefore crucial. Time‐lapse seismic is used to monitor reservoirs and provide evidence of saturation and pressure changes within the reservoir. However, relative to background velocities and reflector depths, the time‐lapse changes in velocity and geomechanical properties are typically small between consecutive surveys. These changes can be measured by using apparent displacement between migrated images obtained from recorded data of multiple time‐lapse surveys. Apparent displacement measurements by using the classical cross‐correlation method are poorly resolved. Here, we propose the use of a phase‐correlation method, which has been developed in satellite imaging for sub‐pixel registration of the images, to overcome the limitations of cross‐correlation. Phase correlation provides both vertical and horizontal displacements with a much better resolution. After testing the method on synthetic data, we apply it to a real dataset from the Norne oil field and show that the phase‐correlation method can indeed provide better resolution.

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Section: Methodology and Datasetsmentioning

confidence: 99%

Sub‐sample time shift and horizontal displacement measurements using phase‐correlation method in time‐lapse seismic

Tomar

Singh

Montagner

2016

Geophysical Prospecting

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“…In the meantime time-lapse or 4-D seismic has begun to emerge as a value-added proposition for managing efficient production and recovery processes [36]. Seismic reflectivity is a function of both static and dynamic reservoir properties.…”

Section: Evolution To 4-d (Time Lapse) Seismic and Reservoir Simulationsmentioning

confidence: 99%

Computational challenges in the search for and production of hydrocarbons

Ullo

2008

Sci Model Simul

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The exploration and production of oil and natural gas facing unprecedented demands for a secure energy supply worldwide is continuing a long trend to develop and adopt new technologies to help meet this challenge. For many oilfield technologies mathematical modeling and simulation have played a truly enabling role throughout their development and eventually their commercial adoption. Looking ahead, the vision of data-driven "intelligent" oilfields designed and operated using simulations to reach higher recovery factors is becoming a reality. Very little of this vision would be possible let alone make sense without the capability to move information across several simulation domains. We will examine several successes of modeling and simulation as well as current limitations which need to be addressed by new developments in theory, modeling, algorithms and computer hardware. Finally, we will mention several fundamental issues affecting oil recovery for which increased understanding is needed from new experimental methods coupled to simulation.

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“…Oil is mainly found in the Ile and Tofte Formations, and gas in the Garn formation. The sandstones are buried at the depth of 2500-2700 m. The porosity is in the range of 25-30% while permeability varies from 20 to 2500mD (Steffensen and Karstad, 1995;Osdal et al, 2006).…”

Section: The Norne Field Casementioning

confidence: 99%

Streamline-Based Time Lapse Seismic Data Integration Incorporating Pressure and Saturation Effects

Watanabe

Han

Datta‐Gupta

et al. 2013

SPE Annual Technical Conference and Exhibition

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We present an efficient history matching approach that simultaneously integrates 4-D repeat seismic surveys with well production data. This approach is particularly well-suited for the calibration of the reservoir properties of high-resolution geologic models because the seismic data is areally dense but sparse in time, while the production data is continuous in time but averaged over interwell spacing. The joint history matching is performed using streamline-based sensitivities derived from either finite-difference or streamline-based flow simulation. Previous approaches to seismic data integration have mostly incorporated saturation effects but the pressure effects have largely been ignored. We propose, for the first time, streamline-based analytic approaches to compute parameter sensitivities that relate the seismic data to reservoir properties while accounting for both pressure and saturation effects via appropriate rock physics models. The inverted seismic data (e.g., changes in acoustic impedance or fluid saturations), is distributed as a 3-D high-resolution grid cell property or as a vertically integrated two-dimensional map. We derive pressure drop sensitivities along streamlines in addition to our previous work of water saturation sensitivity computation. The novelty of the method lies in the analytic sensitivity computations which make it computationally efficient for high resolution geologic models. We demonstrate the versatility of our approach by implementing it in a finite difference simulator which incorporates detailed physical processes, while the streamline trajectories provide for rapid evaluation of the sensitivities. The efficacy of our proposed approach is demonstrated with both synthetic and field applications. The synthetic example is the SPE benchmark Brugge field case. The field example involves waterflooding of a North Sea reservoir with multiple seismic surveys. For both the synthetic and the field cases, the advantages of incorporating the time-lapse variations are clearly demonstrated through improved estimation of the permeability distribution, pressure profile, and fluid saturation evolution and swept volumes.

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Mapping the fluid front and pressure buildup using 4D data on Norne Field

Cited by 48 publications

References 0 publications

Sub‐sample time shift and horizontal displacement measurements using phase‐correlation method in time‐lapse seismic

Sub‐sample time shift and horizontal displacement measurements using phase‐correlation method in time‐lapse seismic

Computational challenges in the search for and production of hydrocarbons

Streamline-Based Time Lapse Seismic Data Integration Incorporating Pressure and Saturation Effects

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