Cementing Unit Startup Self-Test for Pump Sensor Diagnostics
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing methods for determining the operational condition of pumping equipment in oil well cementing operations are time-consuming and inefficient, requiring manual diagnostic tests that can be inconclusive and prone to errors in logging and reporting.
Innovation Solution
An automated diagnostic test system is implemented, where the unit controller performs a pre-job diagnostic test upon startup, logging results and allowing wireless communication to a remote service center for real-time reporting, thereby improving efficiency and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual diagnostic tests are performed on pumping equipment components, then operational status can be determined, but the process is time-consuming and inefficient
Solution Approach 1:
The cementing unit performs self-diagnosis through an automated controller that executes diagnostic routines on pumping equipment components, eliminating the need for manual testing by personnel while maintaining diagnostic accuracy
Solution Approach 2:
Manual diagnostic procedures are replaced with an automated electronic control system that uses sensors, processors, and software algorithms to detect and report equipment status, significantly reducing testing time
2Loss of information
If manual diagnostic testing is performed, then component status data can be obtained, but logging and reporting is time-consuming and prone to errors
Solution Approach 1:
The controller automatically logs diagnostic test results and transmits them via wireless communication to remote service centers, creating a closed-loop feedback system that eliminates manual data recording errors and reduces reporting time
Solution Approach 2:
An automated communication system acts as an intermediary between the diagnostic testing system and service centers, automatically transmitting data without human intervention to eliminate transcription errors and accelerate reporting
3Productivity
If automated diagnostic testing is implemented, then efficiency and reliability are improved, but system complexity increases
Solution Approach 1:
The controller serves multiple functions including operational control of pumping equipment, execution of diagnostic routines, data logging, and wireless communication, consolidating what could be separate systems into a single multi-functional device to minimize added complexity
Data Source
AI summary
A wellbore pumping unit comprising a main pump, a power source, a controller, and a plurality of sensors is provided. A method of performing a diagnostic check of the unit controller and the plurality of sensors when power is applied to the unit controller. A diagnostic application executing in memory writes a status of the plurality of analog inputs of a plurality of valve position sensors, a status of a plurality of frequency inputs of a plurality of flowmeters, and a plurality of calibration data files that correlate to a plurality of sensors to a diagnostic report file. The status of the sensor inputs and calibration data files can be a pass or a fail. The status of the sensor inputs can be displayed on a human machine interface.