Petrochina Tarim Oilfield Branch (hereinafter referred to as “Tarim Oilfield”) is the largest ultra-deep oil and gas field in China, the main gas source of west-east gas transmission and the main gas source in southern Xinjiang, the largest oil and gas field enterprise in Xinjiang and the regional company with the most development potential of petrochina. In the face of the digital wave, Tarim Oilfield has taken Donghe Oil and Gas Production Management Area as one of the leading demonstration areas to accelerate the digital transformation and intelligent upgrading, and strive to create a new benchmark of digital intelligence.

Tarim oilfield

Centering on the needs of intelligent production process, enterprise quality and efficiency improvement and digital transformation in the Donghe oil and gas production management area, Zhongcontrol technology proposed a highly suitable and efficient intelligent upgrading and transformation plan. The scheme takes the “1+2+N” smart factory new architecture as the blueprint, based on the central control intelligent operation management and control system (OMC), realizes the optimization and intelligent management of the production process under all working conditions, and helps customers achieve “cost optimization, manpower reduction, safety and stability, experience accumulation, asset appreciation” and other values.

1783-BMS12T4E2CGNK Donghe oil and gas production management area of Tarim Oilfield

1The OMC system facilitates intelligent autonomous operation

In the East River oil and gas production management Area project, the central control technology has carried out a comprehensive intelligent transformation for three sets of devices, including Harbin Liulian, Donghe and Repu. By playing a number of functions such as OMC system loop monitoring, intelligent setting, alarm management, etc., the automation level and operation efficiency of the device have been significantly improved, and the enterprise has been upgraded from traditional automation to intelligent autonomous operation. It provides a solid support for the production and operation of Donghe oil and gas production management area.

1783-BMS12T4E2CGNK

The OMC system comprehensively monitors, evaluates, diagnoses and optimizes the PID control loop of the three sets of devices of Harbin Liulian, Donghe and Repu, calculates and centrally displays the key data such as the self-control rate and control stability rate in real time, and generates the performance evaluation report of the daily, weekly and monthly dimensions of the control loop, which helps the technician to quickly and accurately locate the performance defects of the control loop. For the control loop with poor operating performance, the identification algorithm is used to accurately obtain the process model of the PID control loop, and the parameters of the PID controller are optimized and calculated through the internal model control algorithm, and the engineers are assisted to optimize the parameters interactively, so as to optimize the control performance of the PID control loop, reduce the threshold of the control loop operation and maintenance, and significantly improve the daily operation and maintenance efficiency.

1783-BMS12T4E2CGNK Aiming at the problem of excessive alarm in factory area, the centralized management and analysis of alarm data are realized through the construction of alarm master database. Based on this, by means of alarm statistical analysis, multi-condition alarm management and other means, combined with the professional knowledge of process personnel, the alarm mechanism is comprehensively optimized, effectively eliminating invalid alarms and nuisance alarms, significantly reducing the number of alarms, and ensuring that operators can respond to key alarms in a more timely and effective manner. In addition, the OMC system establishes an online expert knowledge base, precipitates professional knowledge, effectively reduces the working pressure of operators, and lays a solid foundation for the safe production and efficient operation of enterprises.