Multi-well Stimulation Flow Control via Fiber-Optic Feedback
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Solution Overview
Problem
Conventional diversion techniques in multi-well hydraulic fracturing fail to accurately monitor and control fracture growth and fluid distribution in real-time, leading to inefficiencies and increased costs due to reliance on predefined treatment schedules that do not account for actual operating conditions.
Innovation Solution
Implementing a system that uses fiber-optic sensors for real-time monitoring and control, allowing for the adjustment of diverter placement and fluid distribution during multi-well stimulation treatments based on current operating conditions, thereby optimizing fracture growth and reducing treatment time and materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional diversion techniques with predefined treatment schedules are used, then operational simplicity is maintained, but real-time monitoring and control accuracy of fracture growth and fluid distribution deteriorates
Solution Approach 1:
The system implements real-time feedback by continuously monitoring downhole flow distribution using fiber-optic sensors and adjusting diverter placement based on actual operating conditions. The control system receives real-time data from sensors and dynamically modifies treatment parameters to optimize fracture growth and fluid distribution throughout the multi-well stimulation process.
Solution Approach 2:
The patent replaces conventional mechanical diversion methods with fiber-optic sensing technology and automated control systems. Fiber-optic sensors substitute for traditional pressure gauges and flow meters, providing real-time distributed measurements without mechanical moving parts. The control system replaces manual operational decisions with automated algorithms that process sensor data and adjust treatment parameters in real-time.
2Productivity
If real-time monitoring and control systems are implemented, then treatment optimization and cost reduction are achieved, but system complexity and initial costs increase
Solution Approach 1:
The fiber-optic sensing system serves multiple functions simultaneously: it monitors downhole flow distribution, tracks fracture growth, measures temperature profiles, and detects pressure changes throughout the wellbore. This multi-functional approach consolidates what would otherwise require separate measurement systems, reducing overall complexity while maintaining high productivity through comprehensive real-time monitoring.
3Adaptability or versatility
If predefined treatment schedules are used, then operational simplicity is maintained, but adaptability to actual operating conditions deteriorates
Solution Approach 1:
The system transitions from static predefined schedules to dynamic real-time control. Treatment parameters such as diverter placement, fluid injection rates, and pumping pressures are continuously adjusted based on real-time sensor feedback. This dynamic approach allows the system to adapt to changing downhole conditions, fracture propagation patterns, and fluid distribution variations throughout the stimulation process.
Data Source
AI summary
System and methods of controlling fracture growth during multi-well stimulation treatments. The flow distribution of treatment fluid injected into first and second well formation entry points along multiple wellbores is monitored during a current stage of a multi-well, multistage stimulation treatment. Upon determining the fracture growth and/or monitored flow distribution meets a threshold, a remainder of the current stage is partitioned into a plurality of treatment cycles and at least one diversion phase. A portion of the fluid to be injected into the first well and/or second well formation entry points is allocated to each of the treatment cycles of the partitioned stage. The treatment cycles are performed for the remainder of the current stage using the treatment fluid allocated to each treatment cycle, wherein the flow distribution is adjusted so as not to meet the threshold.