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Introduction to Digital Oil and Gas Field Systems              5


                                                    SCADA
                  Real-time sensors  Data streaming
                    P-T-Vol
                                                             Automated workflows
                                                                   fm
                        RTU                                      Physical Model
                                                    Control center
                             Control
                             panel
                                                                        Collaboration
                                                         Visualization  …Prediction
                                                Reactive control
                        Subsurface data
                                           Proactive control
                       Gas
                        Oil              Passive control
                       Water
              Fig. 1.3 Main description of a DOF system, showing the value chain process from data
              acquisition, transmission, recollection, data processing, virtual models and workflows,
              collaboration, visualization and model prediction, and ultimately an action plan with
              different control modes.



              data communication, and computation the mid-1990s, which was followed
              by an evolution of data and computation in the 2000s. In the mid-2010s, we
              argue that DOF is in adolescence, with growing “big data” technologies,
              increasing automation and intelligence being applied, introduction of
              collaboration decision centers, and emphasis on work processes.
                 But a golden era of DOF—with sensors on all relevant equipment
              mobility of applications, intelligence in automation, and automated optimi-
              zation of production and field management in real time—is on the horizon
              in the coming years and decades. We can say with confidence that the
              coming decade will introduce exciting new advancements. Let us take a look
              at some of the key technologies that were crucial to getting us this far and
              will be crucial to achieving this golden age of DOF systems.
                 What we now know as the Internet began through a partnership
              between the military, universities, and private corporations known as the
              ARPANET (Isaacson, 2014). Isaacson (2014) provides a history of the full
              development. The government-sponsored ARAPNET of the early 1960s
              eventually enabled multiple computer connections using packet switching
              and distributed network hubs. ARAPNET went from strictly government,
              to a network of academic institutions in late 1960s, to a commercial enter-
              prise and a standard protocol (IP/TCP) in the mid-1970s. By the late 1980s
              the Internet began connecting the world and, with standard Internet proto-
              cols (IP), enabled DOF systems to connect sensors throughout the oil and
              gas value chain to centralized, distributed, and mobile computers.
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