Digital Oilfield Market Size By Process (Production Optimization, Reservoir Optimization, Drilling Optimization), By Service (Instrumentation & Automation {Security Systems, Smart Wells, Wireless Systems, Distributed Control System, SCADA}, Information Technology {Software, Computer Equipment & Application Hardware, IT Outsourcing Services}), By Application (Onshore, Offshore), By Technology (IoT, Advance Analytics, Robotics, Cloud Computing, Mobility), Industry Analysis Report, Regional Outlook, Application Potential, Competitive Market Share & Forecast, 2020 – 2026