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Fourth EAGE WIPIC Workshop
- Conference date: March 21-23, 2022
- Location: Online
- Published: 21 March 2022
21 - 26 of 26 results
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De-risking Polymer Injectivity in a Carbonate Reservoir to Unlock Incremental Oil Production
Authors C. Fabbri, H. Al Saadi, K. Wang, F. Maire, C. Romero, P. Cordelier, C. Prinet, S. Jouenne, O. Garnier, S. Xu, J.M. Leon, M. Baslaib and S. MasalmehSummaryThis abstract presents the updated results of a polymer injectivity test performed in a highly layered limestone reservoir in the Middle East. The field observations are then compared with model predictions. Considering the importance of injectivity for scaling-up the polymer flood and recent field observations, calibration of the model during a multi-well pilot is discussed.
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4D Seismic impact to support production optimization - Dan and Halfdan chalk examples, Danemark
Authors J. Zaske, N. Bedayse, K. Kostro, A. Singh, L. Vestergaard and B. WangSummaryTime lapse 4D seismic has proven to be a key tool to monitor water flood efficiency in the Danish Underground Consortium (DUC), especially for the mature Dan and Halfdan chalk fields. It is fully integrated within asset teams and used to identify and mature infill drilling and well- and reservoir management (WRM) opportunities.
4D signals clearly correlate with production and water injection effects along the long horizontal wells. This gives important insights about the lateral and vertical water sweep efficiency and areas with gas breaking out of solution due to insufficient pressure support from injectors.
This knowledge is used to constrain reservoir models for more complex development projects but also directly adds value in supporting specific well interventions, such as opening or closing of individual completion zones to drain remaining oil pockets and reduce water cut.
In this presentation we will share how 4D seismic is interpreted, integrated and impacts business decisions. We show a range of examples how 4D is used to identify swept zones and to locate remaining oil, compare drilling results with 4D predictions, and how it is used to identify and mature WRM and infill drilling opportunities to improve production performance
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Multidisciplinary integration leading to production optimization in mature waterflooded chalk fields, Denmark.
Authors T. Wang, A. Singh, M. Pallant, J. Zaske, N. Bedayse, M. Coste, D. Gelderblom, I. Andreeva and K. KostroSummaryTo optimise the production with an acceptable cost, a project known as WROM (Well and Reservoir Optimisation Management) has been initiated. A robust 2G&R (Geology, Geophysics and Reservoir Engineering) synthesis along with opportunity ranking system, which involve multidisciplinary contributions, were taken to assess a wide range of economic opportunities on Dan and Halfdan Fields and these opportunities will be tackled by different types of interventions. These interventions are anticipated to be executed between 2022 to 2024.
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Chasing Business Critical Insights in a Fast and Continuous Manner Using Ensemble-based Modeling Approach
Authors A.S. Khan, A. Phade and T.C. SandøSummaryThe work presented here introduces an uncertainty centric ensemble-based approach for reservoir modelling. The approach, as opposed to traditional step-wise siloed approach, promotes dialogue and collaboration between subsurface professionals to gain a better understanding of the uncertainty associated with the reservoir at each modelling step.
The proposed integrated and automated workflows are described which start by building an initial ensemble using all the known uncertainty in the available data. The initial ensemble is then history-matched using an ensemble-based algorithm that makes use of multiple machine-learning techniques. Subsequently, the history-matched ensemble is used to then perform forecasting for the reservoir under all the inherent uncertainty, enabling subsurface teams to truly analyse risks and opportunities associated with crucial business decisions.
The methodology is demonstrated on a carbonate reservoir and the resulting value gained is highlighted. The approach enables teams to perform reservoir modelling in a fraction of time, compared to traditional deterministic approach, and facilitates assimilation of field data as it becomes available, in a robust and seamless manner.
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Polymer Gel Systems for Wellbore Strengthening of Oil and Gas Wells
Authors A. Hamza, M. Shamlooh, I. Hussein, M. Nasser, M. Magzoub and S. SalehiSummaryWellbore strengthening has been recently introduced as a technique to prevent and treat lost circulation of the drilling fluids. This work overviews different polymeric formulations crosslinked with organic and in-organic crosslinkers as lost circulation materials (LCM) to seal fractures for wellbore strengthening applications. Functionalized silica showed a potential to replace the conventional use of polyethyleneimine (PEI). Moreover, nanosilica with various sizes can reinforce the developed gels and improve the stability of the formulations. On the other hand, environmentally friendly in-organic crosslinkers such as cobalt acetate and aluminum acetate were implemented for high and low-temperature applications as alternatives to the toxic chromium acetate.
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Interwell and inflow gas tracers – overview and applications
More LessSummaryGas chemical tracer technologies for inter-well and inflow applications are used to develop reservoir understanding as well as gas flow patterns. Inter-well gas tracers have been adapted to support WAG and CO2-WAG applications in the recent years and are proven a legitimate source of reservoir information. Inflow tracers increase granularity within a well and in collaboration with inter-well are able to provide information and solution on gas production and efficiency of EOR strategies.
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