15-Site Controls Migration, P&ID Reverse Engineering & As-Built Development — Delaware Basin As part of Oxy's post-acquisition integration, Freezer Engineering reverse-engineered and documented 15 central tank battery sites across the Delaware Basin with no existing source code and no site-to-site consistency. Our electrical team developed IO schematics compliant with Oxy's Allen Bradley standards, using a mail-merge database approach to maintain consistent tagging from IO list through IO schematic, cause & effect matrix, and control narrative — dramatically improving quality and eliminating rework. For controls, we tracked down the original programmer of the legacy Scadapack systems (now retired) and, combining IO wiring documentation, field evidence, diagnostic HMI screens, and engineering judgment, fully reverse-engineered the control logic into a structured control narrative and cause & effect document suitable for migration to Allen Bradley PLCs and HMIs. P&IDs were produced to Oxy's drawing standards and nomenclature, serving as the engineering foundation for the broader controls migration program.

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DISCIPLINES & ENGINEERING SERVICES Electrical Engineering, Power Engineering, Instrumentation Engineering, Controls Engineering, Process Engineering, Mechanical Engineering, Piping Engineering, Civil Engineering, Structural Engineering, EPCM, Owner's Representative, Multi-Discipline Engineering, Full-Service Engineering, Brownfield Engineering, Greenfield Engineering, Front-End Engineering, Detailed Engineering, Construction Management, Procurement Management, Commissioning, Startup Support ELECTRICAL Single Line Drawings, Power Modeling, Power Calculations, Load Calculations, Power Distribution, Switchgear, Transformers, Arc Flash Studies, Power Simulation, Utility Coordination, Utility Connection Design, High Voltage, 345kV, 138kV, 35kV, 25kV, Solar Power, Battery Storage, Battery Flywheel, Gas Turbine Power Generation, Overhead Power Line, Electrical Load Requirements, IO Schematics, IO Lists, Panel Design, Power Transformers, Cable Tray Design, Electrical Specifications INSTRUMENTATION Pressure Safety Valves (PSV), Relief Valve Sizing, API 520, API 521, Overpressure Protection, Relief Flow Calculations, Instrumentation Design, Instrument Lists, Field Instrumentation, Tag and Nameplate Inspection, P&ID Development, P&ID Walk-Downs, PFD Review, Piping Specifications, Metering Systems, Metering Stations, Flow Metering, Cause & Effect Matrix, Gas Detection, Flame Detection, Field Documentation, As-Built Documentation, Reverse Engineering CONTROLS & AUTOMATION PLC Programming, HMI Development, SCADA, PlantPAx, ControlLogix, FactoryTalk, Allen Bradley, Automation Direct, Scadapack, Controls Migration, Controls Modernization, Legacy System Integration, ESD Systems, Emergency Shutdown, Safety System Design, Alarm Rationalization, Interlock Design, First-Out Diagnostics, Batch Recipe Management, Model Predictive Controls (MPC), Control Narrative, Cause & Effect, Startup​/​Shutdown Automation, Motor Monitoring, Network Architecture, Fiber Optic Network, Device Level Ring (DLR), Remote IO (RIO), HMI Screens, Historian, Trending INDUSTRIES & MARKETS Oil & Gas, Midstream, Upstream, Refining, Petrochemical, Data Centers, Hyperscale AI, Manufacturing, Industrial Facilities, Water Treatment, Produced Water, Mining, Potash, Solution Mining, Private Equity, Due Diligence FACILITY TYPES Data Centers, Compressor Stations, Compression Facilities, Refineries, Oil Terminals, Central Tank Batteries, Gas Plants, Saltwater Disposal (SWD), Meter Stations, Pipelines, Pump Stations, Injection Wells, Water Wells, Desalination Plants, Pilot Plants, Manufacturing Facilities PROJECT DELIVERY & METHODOLOGY Brownfield Projects, Retrofit, Remediation, Acquisition Integration, Due Diligence, Feasibility Studies, Design Basis, Gap Analysis, Checklist Methodology, Field Walk-Downs, Site Assessments, Constructability Review, PHA Facilitation, Safety Reviews, Design Standards, Technical Specifications, Drawing Standards, Scalable Design Platform, Standardization, Templates, 3D Modeling, Laser Scanning, BOM, ISOs TECHNICAL STANDARDS & COMPLIANCE API 520, API 521, ASME, Texas RRC, NFPA, Arc Flash (NFPA 70E), PlantPAx Standards, Tier 3 Uptime, Tier 4 Uptime, Regulatory Compliance, Permitting, AHJ Coordination, Environmental Site Assessment, Process Hazard Analysis (PHA) CLIENTS & END MARKETS Energy Companies, Oil & Gas Operators, Midstream Operators, Refiners, Private Equity, Hyperscalers, Data Center Developers, Mining Companies, Water Treatment Companies, Manufacturing Companies GEOGRAPHIES Texas, Wyoming, Colorado, New Mexico, North Dakota, Indiana, Bakken Basin, DJ Basin, Delaware Basin, Powder River Basin, Permian Basin, West Texas, Rocky Mountains, Continental USA VALUE PROPOSITIONS & DIFFERENTIATORS Zero Field Incidents, Safety Leadership, Scalable Design, Repeatable Execution, Field Decision-Making, Real-Time Engineering Support, Accelerated Delivery, Cost Optimization, NPV Optimization, Supply Chain Management, Vendor Management, Confidentiality, Multi-Discipline Coordination, Integrated Engineering, ROI Identification, Capital Efficiency, Operational Reliability, Single Point of Failure Elimination