DGI Blog

Analysis of the latest news, trends, and technology from the oil and gas industry

Minimizing the Uncertainty of Well Trajectory Calculations

The greater the wellbore length the greater the degree of uncertainty in determining the actual trajectory location. A well-understood fact: Absolute accuracy is nearly impossible because of the inherent errors in measurements (sensors, measured depth, axial or cross-axial interference, geomagnetic field uncertainty). In extended reach wells using conventional MWD techniques, poor tool error models can create positional uncertainty that can be tens of feet larger than a high quality tool.

Visualizing Well Log Data to Understand Reservoir Performance

To ensure accurate characterization of reservoir conditions and to maximize efficient and cost-effective decision-making, the integration of many sources of data, including well log data, fluid production data, and geologic models is required.

A Statistical Approach to Depth Uncertainty Analysis for Model Integrity

Dealing with the fundamental uncertainty of subsurface environments and their hydrocarbon resources is one of the major industry challenges. Seismic and borehole technologies improve our ability to acquire greater volumes of geologic information. Ever-increasing processor power crunches these data more efficiently to create models to help geoscientists and reservoir engineers understand the interaction between geology and hydrocarbon resources.

Understanding the Importance of Data Visualization in the Oil and Gas Industry

Data-gathering and processing can be a laborious task that requires extensive expertise. But the best software offers easy-to-read data to personnel, irrespective of their discipline or specialty. Analysts need data visualization tools that merge data across multiple disciplines in the oil and gas industry, helping users make sound decisions that enhance upstream or downstream campaigns.

Enhancing Structural Interpretation of Seismic Data With Velocity Modeling

While there are traditional approaches to the structural interpretation of seismic data for oil exploration and velocity modeling in the industry, these approaches can be enhanced through advancements in technology. Without the ability to integrate and visualize all relevant data in a comprehensive environment, professionals may overlook valuable pays.

An Integrated Approach to Seismic Forward Modeling

Seismic forward modeling is an important step to better understand complex subsurface conditions when using 3D, and especially 4D, seismic data. However, to fully appreciate the impact of the modeling results, data integration is required to set the findings in their full and correct context. Analysts are well aware of the challenges of sifting through multiple applications to manage datasets—which often leads to confusion and wasted time along the way.

Seismic Reservoir Monitoring Through Visualization

Seismic Reservoir Monitoring Through Visualization

A 3D view of a reservoir with seismic integrated with geologic models, well logs, and a planned wellpath. Data courtesy Rocky Mountain Oilfield Testing Center and U.S. Department of Energy.An ideal design, development, and management plan for hydrocarbon asset...

Visualizing Spatio-Temporal Data

Visualizing Spatio-Temporal Data

Many different 3D and 4D data types in the same view. Well paths, logs, and tops shown in context with 4D seismic and a reservoir simulation model. Production data also shown. Data used with permission of owner.Visualizing spatio-temporal data on evolving entities or...

4D Visualization As a Geothermal Exploration Method

4D Visualization As a Geothermal Exploration Method

3D Model of a geothermal area with cross sections of 3D seismic and density profile along a proposed EGS well pair. The EGS wells were planned going through microseismic from a previous stimulation study. Surface microgravity data and temperature logs from offset...

Visualizing Open Hole Data for Multi-Disciplinary Teams

Visualizing Open Hole Data for Multi-Disciplinary Teams

Understanding formation integrity and reservoir conditions are critical for success with open hole completions. CoViz 4D visualizations such as this can help.Open hole data is a primary dataset used by all geoscience and engineering disciplines in the O&G...

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