Jet Pump Wellbore Thermal Stress Analysis Model
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Solution Overview
Problem
Current methods for analyzing and simulating well systems with jet pumps in the oil and gas industry face challenges in accurately predicting and modeling the performance of hydrocarbon-producing wells, particularly in high-pressure, high-temperature environments, due to the complex interactions of temperature and pressure changes caused by jet pump operations.
Innovation Solution
A computer-implemented system and method for analyzing well systems with jet pumps, which includes providing a well system model, integrating a jet pump model, and using calculation engines to determine production conditions, allowing for the simulation of thermal and mechanical effects on well components, such as pressure and temperature changes, and predicting the performance of hydrocarbon production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If computer modeling is used to simulate temperature and pressure characteristics in wellbores, then design accuracy of casing and tubing is improved, but computational complexity and analysis time increase
Solution Approach 1:
The wellbore is divided into multiple discrete segments or zones along its length, with each segment having its own thermal and mechanical properties. This segmentation allows the complex continuous problem to be broken into manageable discrete units that can be solved iteratively, balancing accuracy with computational feasibility.
Solution Approach 2:
The patent replaces complex mechanical analysis methods with computational modeling approaches. By using numerical simulations and computer algorithms to model thermal-flow-stress interactions, the system achieves high prediction accuracy without requiring overly complex analytical mechanics solutions.
2Reliability
If comprehensive thermal-flow-stress analysis is performed during production operations, then wellbore component integrity is improved, but computational resources and time requirements increase
Solution Approach 1:
The system performs preliminary thermal-flow-stress analyses during the design and planning phases to establish baseline conditions and identify potential issues before actual production begins. This preliminary action allows for preventive design adjustments without requiring time-consuming analyses during actual production operations.
Solution Approach 2:
The patent employs parameter changes by adjusting thermal, flow, and stress parameters to represent different production scenarios and time periods. This allows comprehensive analysis of component integrity under various conditions without requiring separate full-scale simulations for each scenario, thereby reducing total analysis time.
3Measurement precision
If jet pump operations are modeled to predict production performance, then production forecasting accuracy is improved, but model integration complexity increases
Solution Approach 1:
The patent merges the jet pump performance model with the wellbore thermal-flow-stress model into an integrated comprehensive model. This combination allows simultaneous prediction of production performance and wellbore component behavior, achieving high accuracy without requiring separate analyses that would increase overall system complexity.
Solution Approach 2:
The integrated model serves multiple functions: it predicts jet pump production performance, calculates thermal effects, determines flow characteristics, and assesses stress conditions on wellbore components. This multi-functionality achieves comprehensive production forecasting accuracy while avoiding the complexity of maintaining separate specialized models for each function.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enables accurate prediction and modeling of well system performance, including pressure and temperature changes, thereby improving the design and operation of wells with jet pumps, enhancing the structural analysis of wellbore components and addressing issues like trap annular pressure and wellhead movement.
Implementation Method 1
Some well systems having artificial lift can include a jet pump for generating jet pump lift
Implementation Method 2
predicting pressure and volume changes due to annular pressure buildup (APB) when the well system heats up as a result of production operations or the injection of hot fluids into the well
Data Source
AI summary
A method for simulating a well system can include providing a well system model, providing a jet pump model, providing at least one calculation engine, inputting an input parameter, defining a mechanical configuration of the well system, integrating a jet pump model into a well system model, computing a solution to a model, and determining at least one production condition of a well system. A computer readable medium can have instructions stored thereon that, when executed by a processor, can cause the processor to perform a method including accessing a well system model, accessing a jet pump model, integrating the jet pump model and the well system model, computing a solution to a combined model, and determining a production condition of a well system.