Automated Zipper Manifold Valve Control for Leak Detection
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Solution Overview
Problem
Monitoring and maintaining the valves of a zipper manifold is arduous, time-consuming, and dangerous, leading to equipment erosion and safety risks, with difficulties in real-time tracking of valve positions and flow rates.
Innovation Solution
An automated zipper manifold system with locally and remotely controllable valves, equipped with pressure transducers to monitor fluid flow and pressure, allowing for remote operation and maintenance, and an operator computing device for centralized control and data analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual monitoring and operation of valves is performed, then direct control over valve positions is achieved, but operator safety risks increase and equipment erosion accelerates
Solution Approach 1:
The patent introduces an automated control system with remote interface as an intermediary between the operator and the valves. The operator controls valves remotely through a computer interface rather than manually at the valve location, eliminating direct exposure to high-pressure environments while maintaining control capability
Solution Approach 2:
The patent replaces manual mechanical valve operation with an automated electronic control system. Sensors detect valve positions and pressures, while motors actuate valve openings and closings automatically based on control signals, eliminating the need for manual mechanical intervention
2Productivity
If frequent valve openings and closings are performed during zipper frac operations, then treatment fluid can be redirected to multiple outlets, but equipment lifespan decreases due to erosion
Solution Approach 1:
The system performs automatic valve control and monitoring without requiring repeated manual interventions. The automated system manages the frequent opening and closing cycles, allowing the valves to operate within their designed lifespan parameters while maintaining high productivity through efficient fluid redirection
Solution Approach 2:
Pressure sensors and position sensors provide real-time feedback on valve status and system conditions. This feedback enables the control system to optimize valve operation timing and duration, reducing unnecessary wear from excessive or improperly timed valve cycles while maintaining productivity
3Loss of information
If real-time monitoring of valve positions and flow rates is implemented, then operational awareness is improved, but system complexity increases
Solution Approach 1:
The control computer serves multiple functions: it monitors valve positions via sensors, tracks pressure readings, controls valve actuation, and provides user interface for operator interaction. This multi-functionality consolidates what could be separate complex systems into a single integrated unit, reducing overall system complexity while providing comprehensive real-time information
4Object-affected harmful factors
If remote valve control is implemented, then operator safety is improved, but ease of operation decreases due to reduced direct control
Solution Approach 1:
The remote control interface acts as an intermediary that maintains ease of operation while improving safety. The computer interface provides intuitive control mechanisms for remote valve operation, and the system includes automated features that reduce the operational burden on the operator while keeping them safely removed from hazardous environments
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
Enhances safety by reducing manual intervention, extends equipment lifespan, and improves operational efficiency through real-time monitoring and automated maintenance.
Implementation Method 1
multiple pressure transducers that are configured to locally measure a pressure differential across valves
Data Source
AI summary
An automated zipper manifold system for remotely monitoring and controlling valves between a mixing chamber and one or more wells. Each line includes a pair of valves, each with an actuator, position indicator, and pressure transducer. A computing device communicates with the valve modules to receive position and pressure data, determine valve states, and issue commands to open, close, or inject grease through dedicated lines. The system can automatically detect leaks, verify seals, and balance pressure within the manifold. A graphical user interface displays real-time valve and pressure data, allowing remote and simultaneous control of multiple valves. Automated routines may be executed to maintain valve performance, reduce non-productive time, and improve operational safety during fracturing or wireline operations.