Wellsite Power Management for Variable Generator Load Control
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Solution Overview
Problem
Electrical power demand by well construction equipment fluctuates significantly during different stages of operations, leading to inefficient operation of generator units and high emissions, particularly during low and high power demand periods.
Innovation Solution
A well construction system with a power manager that utilizes sensors and a central controller to monitor operational data and control electrical power supply to well construction equipment via an electrical power bus, optimizing power usage based on real-time demand.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If generator units operate to match electrical power demand during low power demand periods, then electrical power supply is maintained, but generator units operate at low efficiency and discharge high emissions
Solution Approach 1:
The control system continuously monitors electrical power demand and generator unit performance, adjusting generator operation in real-time based on feedback signals. This enables the system to optimize generator load and minimize emissions while maintaining adequate power supply during low demand periods.
Solution Approach 2:
The system dynamically changes operational parameters of generator units, including load distribution and operating speed, based on real-time power demand conditions. By adjusting these parameters, the system maintains power supply while operating generators at more efficient points during low demand periods.
2Power
If additional generator units are turned on during high power demand periods, then electrical power supply is increased, but generator units operate at low efficiency and discharge high emissions
Solution Approach 1:
The control system dynamically adjusts the number and load of operating generator units based on real-time power demand. Instead of statically running additional generators during high demand, the system optimizes the dynamic allocation of power generation resources, turning generators on/off and adjusting loads to maintain efficiency while meeting power requirements.
Solution Approach 2:
The system performs preliminary warming up of generator units before they are fully engaged in high power demand periods. This preliminary action ensures generators reach optimal operating temperature and efficiency before bearing full load, reducing energy losses and improving overall system efficiency during high demand periods.
3Speed
If generator units operate without proper warm-up during high power demand, then electrical power is quickly available, but generator units operate at low efficiency
Solution Approach 1:
The control system initiates preliminary warming-up sequences for generator units before they are required to meet high power demand. This advance preparation allows generators to reach optimal operating conditions quickly while maintaining efficiency, resolving the conflict between rapid power availability and energy efficiency.
Solution Approach 2:
The system implements periodic monitoring and adjustment of generator warm-up status and operational parameters. By using periodic control actions, the system ensures generators are properly warmed up and operating efficiently while still responding quickly to changes in power demand.
Data Source
AI summary
A well construction system having well construction equipment operable to perform well construction operations to drill a well, power equipment operable to supply electrical power to the well construction equipment via an electrical power bus, operational data sources operable to output operational data, and a power manager communicatively connected with the operational data sources and the power equipment. The operational data sources may include sensors associated with at least one of the well construction equipment, the power equipment, and the electrical power bus. The power manager receives the operational data and outputs power control data to the power equipment to control the electrical power being supplied by the power equipment to the well construction equipment via the electrical power bus during the well construction operations based on the operational data.