Real-time NPV Wellbore Trajectory Optimization
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Solution Overview
Problem
Current methods for optimizing Net Present Value (NPV) of a well during drilling and estimating production from a reservoir field are inefficient, as they fail to provide real-time reliable interpretations to influence drilling decisions effectively.
Innovation Solution
The NPV Max Software models a reservoir with multiple stations, calculates net present values for each station, and determines the optimum trajectory or drilling method based on maximum NPV values, allowing for real-time adjustments during drilling to maximize production and minimize costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If real-time NPV calculations are performed for multiple stations during drilling, then drilling decision accuracy is improved, but computational complexity and time consumption increase
Solution Approach 1:
The reservoir is divided into multiple discrete stations along the wellbore trajectory. NPV calculations are performed independently for each station by segmenting the reservoir into manageable units, allowing parallel computation and reducing overall computational complexity while maintaining decision accuracy.
Solution Approach 2:
Reservoir modeling and NPV calculations are performed in advance before actual drilling operations. The system pre-calculates NPV for multiple potential well paths and stations, so that when drilling reaches a decision point, the optimal trajectory is already determined, eliminating real-time computational delays.
2Productivity
If multiple drilling scenarios are simulated to optimize NPV, then production maximization is improved, but processing time increases
Solution Approach 1:
NPV calculations and scenario simulations are performed at periodic intervals corresponding to drilling milestones or station points rather than continuously. This periodic updating allows sufficient time for comprehensive scenario analysis while keeping overall processing time manageable through batch processing at key decision points.
Data Source
AI summary
A method is disclosed for modeling a first reservoir while drilling a wellbore into a corresponding second reservoir, the first reservoir having a plurality of stations, comprising: determining a plurality of values of net present value corresponding, respectively, to the plurality of stations of the first reservoir; and drilling the wellbore into the corresponding second reservoir in accordance with the plurality of values of net present value.