The Benefits of Leveraging a Reservoir Monitoring System

| |

reservoir monitoring system

Combine geologic data with well information to gain a better understanding of reservoir conditions. Data used with permission of owner.

An accurate understanding of reservoir conditions and activities benefits every member of the reservoir management team throughout the entire lifecycle of a reservoir. That’s an obvious statement to make, but the reality is that achieving that level of understanding to proactively monitor a reservoir requires the ability to integrate, visualize, and analyze a wide range of subsurface data types. These may include geologic, geophysical, simulation models, drilling logs, completions, wells, production, and near-real-time feeds.

These data are acquired with the aid of various monitoring technologies such as life-of-field seismic (LoFS) systems, and discipline-specific software packages. A reservoir monitoring system that integrates these data and allows reservoir engineers to evaluate production data in the context of changing geologic conditions is an essential tool for maximizing hydrocarbon recovery. A detailed earth model provides the foundation for this evaluation.

Begin With a Detailed Geologic Model

A detailed, 3D geologic model reveals subsurface conditions such as faults, major fault gaps, fault-wedge contours, and other complex geologic structures that can be explored by directly examining the 3D model or via extracted contour maps and cross-sections. These digital representations are critical in assessing volumes, fluid migration, and hydrocarbon entrapment in support of reservoir planning and development, and provide the foundation for an effective reservoir monitoring system.
reservoir monitoring system use

Monitor reservoir production in the context of detailed geologic models to discover correlations between varying reservoir conditions and production trends. Data used with permission of owner.

As a reservoir is developed and produced the geologic model is updated using subsequent seismic surveys and combined with information regarding new wells to help reservoir engineers better understand the effects of individual wells, as well as field-wide production, on reservoir conditions.

Benefits of Leveraging a Reservoir Monitoring System

An Integrated View of Reservoir Performance

An efficient reservoir monitoring system provides reservoir engineers with an integrated view of well and reservoir performance. It allows them to assess the performance of an individual well over time and refine the strategy to improve recovery. Daily production data (pressure, flow, water cut) from the wellhead, combined with observation well data and downhole gauges measuring temperature, bottom hole pressure, and the differential between BHP and WHP, provide near-real-time insight.
Visualizing and analyzing these data in the context of the subsurface environment enables faster detection, isolation, and diagnosis of changes (sudden or gradual) that impact well performance.

Sudden changes in production volume: 

  • broken pump identified by a drastic drop in daily volume
  • reduction in injector well pressure
  • collapsed casing brings production to a halt
  • surface valve mistakenly closed during routine maintenance

Gradual changes in production volume:

  • expansion of the fracture network from nearby well into a production zone
  • sand accumulation in strainers, liners, or tubings
  • paraffin buildup around completion components
  • deformation from compaction in shallow wells
  • sucker rod friction abrading casing
A reservoir monitoring system that integrates a wide range of reservoir data helps reservoir management teams with early identification of developing problems, as well as more accurately determine the reasons for sudden production changes.

A Comprehensive Understanding of Changing Reservoir Conditions

A reservoir management system should also allow reservoir teams to evaluate changing conditions as the reservoir is produced and determine effective strategies to improve recovery. By taking advantage of time-lapse seismic data, integrating it with production data, well logs, tracers, horizons, and volumetric data—and animating it over time (4D)—reservoir engineers gain a far better understanding of how well production is impacting subsurface conditions.
reservoir monitoring system benefits

Data used with permission of owner.

With the ability to compare 4D seismic response alongside production data (individual wells, production patterns, and entire fields) engineers can evaluate a wide range of reservoir activities, for example:
  • the impact new wells, infills, or sidetracks are having on nearby well production
  • the location of previously unrecognized areas of unswept oil
  • the migration of gas and water as wells are produced
When a reservoir monitoring system enables reservoir teams to evaluate temporal animations of changing reservoir conditions in response to production, they gain a significantly better understanding of how development decisions impact recovery. This insight, obtained through temporal analysis of reservoir conditions, facilitates better reservoir management and maximized recovery.

When a reservoir monitoring system enables reservoir teams to evaluate temporal animations of changing reservoir conditions in response to production, they gain a significantly better understanding of how development decisions impact recovery.

CoViz 4D: A Critical Component of a Reservoir Monitoring System

An efficient/successful reservoir monitoring system is critical to helping management teams accurately assess opportunities, determine appropriate development strategies, and closely monitor their impact on performance. Data integration, visualization, and analytics software solutions like CoViz 4D enable members of a reservoir team to better understand how the reservoir is evolving and proactively guide its management.

CoViz 4D, a data visualization analytics software from Dynamic Graphics, Inc., gives geologists, geophysicists, and reservoir engineers the ability to easily access and combine all relevant data associated with subsurface environments. Powerful analytic capabilities enable users to explore data relationships, analyze the accuracy of depth conversion of 3D seismic, and visualize seismic well ties and velocity models to facilitate decisions that positively impact profit and reduce operational risk. To learn more about CoViz 4D contact our team.

FURTHER READING

Reducing Extended Reach Drilling Challenges With Data Integration

Paths are easily created from surface to align to multiple targets. Pictured: high-angle wellpath.Extended-reach drilling (ERD), characterized by paths with long horizontal distances, is an approach to cost-effectively recover reserves. With a single wellbore,...

Data Visualization to Guide the Recompletion of Oil and Gas Wells

Covisualization and analysis of fluid migration and depletion via 4D seismic along with production/injection values and geologic structure can enable better decision making when it comes to recompletion considerations.With easily recoverable oil either gone or...

Seismic History Matching: Analyzing and Validating Reservoir Models with 4D Visualization

4D seismic integrated with other discipline-specific data streams in a streamlined workflow fosters collaborative decision making. CoViz 4D offers quantitative and qualitative tools to enable efficiency and accuracy in results.4D seismic surveys play a vital role in...

Understanding the Role of Data Integration in Enhanced Oil Recovery

EOR operations are complex, as depicted in this photo of a steam injection operation. Communication between team members and other teams is critical to understanding and managing EOR activities. CoViz 4D provides a highly integrated environment for data sharing and...

Directional Well Planning Using Comprehensive 3D Visualization

Drilling of directional or horizontal wells has some notable complexities but is an effective way to reach targets that are difficult to access. Effective planning and analysis of the well in its geospatial position facilitate the minimization of risks associated with...

Elevating Frac Hit Mitigation Strategies with Data Visualization and Analysis

Well-to-well communication—often found as frac hits during hydraulic fracturing—is common in unconventional oil and gas development. When the fracture network of a newly drilled well connects to an older well’s fracture network, the older well may fill with sand and...

Seismic Reservoir Monitoring Through Visualization

An ideal design, development, and management plan for hydrocarbon asset development comes from having a better understanding of  all known geological and petrophysical aspects of the subsurface. But given the dynamic nature of the reservoir and its attributes, petroleum professionals can encounter some complexities in the process of in-depth analysis.

Share on Social Media