Background and challenges:

With the completion and commissioning of the West-East Gas Pipeline Project, the current level of safety management of oil and gas pipelines is improved, accidents and their consequences are reduced, so as to ensure the safety of life and property of the public, and to protect the environment. It has become a petroleum company that has improved its comprehensive benefits and competitiveness and entered the international market Important means.

The main problems facing the system at this stage:

1) Manual inspection is time-consuming and labor-intensive-this method will cost a lot of manpower, material resources and time, and later data query is also time-consuming and laborious;

2) Lack of an intuitive data display platform-administrators are required to use multiple professional software to view the data separately during use. When there are errors in the data, there is a lack of comparison;

3) Slow response to emergencies-when the oil and gas pipeline leaks, managers first need to check the pipeline design drawing, use experience to judge, analyze the cause of the accident, find out the treatment plan, and then arrange for personnel to carry out emergency repairs, from leakage to valve closing The longer the time, the greater the leakage, the greater the risk and the more economic losses;

4) Single inspection method-security inspections and the handling of security incidents are extremely blind and uncertain. Not only will there be situations that cannot be inspected, but even if inspections are made, there will still be errors in the judgment of security response strategies, Issues such as insufficient execution in time. This will not only cause irreversible economic losses, but also serious casualties.

The goal of building:

When the optical fiber is touched, vibrated, or squeezed from outside, it will cause morphological interference and change the phase of the optical signal. The system software receiver detects the phase change, can detect the intensity and type of interference, and process the detected signal to determine whether the interference meets the "event" condition, and accurately locate the interference condition, which may cause the pipeline Early warning of external threats of destruction. Realize full-time monitoring of oil and gas pipeline networks, and finally realize pipeline leakage, pipeline buried depth, exposure, and geological deformation prediction through optical fiber temperature and vibration measurement; conveying medium leakage, endangering external intrusion warning; emergency interception of medium source when major leakage accidents occur .

solution:

The oil and gas pipeline network full-time intelligent management system solution is mainly used in the construction and transformation of the oilfield branch/administration level digital oilfield pipeline network security. The system composition is as follows:

The full-time intelligent management system of oil and gas pipeline network adopts optical fiber temperature measurement and vibration measurement technology, Internet of Things, and 5G application technology. Under the guidance of the design principle of "standardization, integration, and intelligence", it adopts standardized industry products to achieve the following functions :

(1) Establish an optical fiber security detection system to realize the real-time monitoring of the entire line of transportation pipelines and realize the centralized control of security automation and intelligence;

(2) Establish a data center with traceable historical information and generate a basic data group of equipment data, process, process and other information, so as to achieve the digital control of the all-round status data and equipment information of the optical fiber security detection system;

(3) Establish a comprehensive management platform for the optical fiber security detection system to achieve one-stop management, data display, predictive maintenance of equipment failures, and portable smart mobile terminal APP for all transportation pipelines;

(4) Establish comprehensive and multi-level defense-in-depth measures, build a defense-in-depth integrated industrial control system security defense system, comprehensively improve the self-immunity and anti-attack capabilities of the integrated management platform of the optical fiber security detection system, and ensure the country's key information foundation Safe operation of facilities.

Program highlights:

1) The data platform function includes the storage and classification of data such as safe operating status data, equipment information, and process parameters of major systems, and can query and trace historical data;

2) Establish a standardized data sharing system to provide timely, accurate and reliable information basis for coordination and scheduling between systems;

3) Establish a data security management mechanism, use security measures such as firewalls, data encryption systems, and token authentication systems to ensure data security and prevent sensitive data leakage and abuse;

4) The knowledge base information can be viewed in real time, so as to efficiently deal with on-site faults;

5) Use distributed optical fiber temperature sensing equipment to sense the temperature and location information of oil and gas pipelines for signal detection and signal transmission, to achieve non-electric detection, intrinsically safe and explosion-proof;

6) The single-loop measurement method of the detector is adopted, which is simple to install and low in cost; redundant spare cores can be reserved, and the measurement accuracy is high;

7) Through the software, different early warning values and alarm values can be set according to the actual situation; the alarm methods are diversified, including vibration amplitude alarm, interference mode alarm, constant temperature alarm, temperature rise rate alarm, and temperature difference alarm. Through the software, data query can be performed: point-by-point query, alarm record query, interval query, historical data query, accounting report printing.