Steering your wells successfully with StarSteer!

Introduction to Roger and Its Applications

Overview of the Company

• Roger was established in 2013 in Houston, employing over 100 professionals including software engineers, geoscientists, mathematicians, and geologists.

• The company operates in more than 10 countries including Canada, Mexico, Argentina, Norway, Germany, and China.

• The primary goal is to simplify workflow processes through various applications.

Introduction to Geo Steering

• The presentation focuses on their main application related to geo steering (GST). A poll was conducted to gauge participants' experience with geo steering.

• Participants were asked to indicate their familiarity with the concept by typing specific responses in the chat.

Understanding Geo Steering

Concept Explanation

• Geo steering involves drilling horizontal wells based on geological data and real-time formation behavior analysis.

• Initial plans may deviate due to unexpected geological changes; GST helps maintain trajectory within target zones.

Benefits of Geo Steering

• By using GST tools like GST Link, operators can react quickly to geological changes and improve production efficiency. This leads to increased reservoir coverage and profitability.

Methods of Geo Steering

Levels of Geo Steering Techniques

1. Level One: Simple Model Comparison

• Involves correlation between logs using model-based or stratigraphical approaches for data interpretation.

2. Level Two: Image Log Interpretation

• Utilizes signals from rotating BHA during drilling for creating interpretable images that provide insights into formation behavior. Requires real-time isotopic tools for data collection.

3. Level Three: Resistivity Inversions

• Allows detection of boundaries before crossing them using resistivity measurements; this method provides deeper insights into formations compared to other techniques.

Star Steer Implementation

Data Utilization in Star Steer

• Various types of data can be integrated into Star Steer including LWD/MWD logs, seismic data, and well tops which enhance project setup efficiency through bulk uploads or plugins like Petrel integration for seamless data transfer.

Level One Methodology Explained

• The model-based method propagates gamma ray log values along the drilling trajectory based on existing type well logs leading to immediate feedback during drilling operations about formation characteristics as they are encountered.

Strat-Based Method Insights

Advantages Over Traditional Methods

• Strat-based methods allow for better correlation by utilizing vertical track data from type wells against actual readings from current wells; this increases resolution when crossing formations at angles rather than vertically only.

Correlation Process

• As drilling progresses back up through previously crossed formations, strat-based methods enable correlation without relying solely on type well logs but instead use current logging information for enhanced accuracy.

Artificial Intelligence Integration

AI-Assisted Interpretation

• Star Steer incorporates artificial intelligence that assists in generating interpretations based on multiple log inputs providing a second opinion that can help avoid mistakes during real-time operations.

Real-Time Adjustments

• Users can compare AI-generated interpretations with manual correlations allowing adjustments based on discrepancies noted between human input and algorithmic suggestions.

Conclusion & Future Directions

Licensing Structure

• Different licensing options exist for Star Steer depending on required features such as inversion capabilities or cloud collaboration tools which enhance project management across teams.

Success Rate Discussion

• While exact success rates are hard to quantify due to various influencing factors like engineering experience and collaboration among teams, users report high satisfaction levels with the software's ability to maintain desired reservoir coverage effectively.

Visualization and Interpretation of Geological Data

Understanding Image Interpretation

• The visualization process allows for interpreting geological images, highlighting the apparent depth of sinusoidal patterns through sticks representing boundary positions.

• A heat map is utilized to show boundary positions with red and blue colors indicating different behaviors of these boundaries.

Resistivity Methods for Boundary Detection

• Level three methods enable detection of boundaries at a distance using deterministic conversion, which can be performed without expensive tools by utilizing bulk resistivity data.

• An example from Australia illustrates drilling along a sandstone formation's top, successfully predicting boundary positions using bulk resistivity.

Challenges in Boundary Separation

• The method requires only one boundary within the distance; multiple boundaries complicate signal separation, making it less effective in complex formations.

• Accurate modeling is crucial when dealing with oil-water contacts; sharp contrasts are necessary to avoid incorrect parameter settings during inversion.

Advanced Techniques for Fluid Contact Detection

• Stochastic conversion techniques allow simultaneous detection of fluid contacts and pinch-outs, enhancing mapping capabilities in complex geological scenarios.

• Implementation of various tools into the Stars Here software facilitates comprehensive resistivity modeling across different platforms.

Reporting and Data Management Solutions

• Customizable PDF reports can be generated directly from Stars Here, allowing integration with third-party applications for enhanced data presentation.

• A cloud system connects various software solutions for real-time data aggregation and analytics, streamlining workflows across teams.

Real-Time Visualization Tools

• Mobile applications enable operational geologists to visualize interpretations on-the-go, ensuring immediate access to updated geological data without needing constant file exchanges.

• The session concludes with an emphasis on integrating AI technologies like ChatGPT into workflows to enhance efficiency and collaboration in geological studies.