Power is an important sector of our state. Electricity is one of the most environmentally friendly. In this regard, in developed countries at the present time the focus was on the development of this region. The article gives a histogram of power generation of the Russian Federation for the last three years. The authors conducted a correlation analysis of statistical data of electricity generation in Russia from January 2013 to January 2016, has vividly rendering a polygon of the frequency distribution electricity generation, derived the equations of lines of regression and compared the empirical and theoretical lines of regression, calculate the correlation coefficient and based on the data to draw conclusions. On the basis of the data of the conducted research made it is established that observed a weak inverse dependence of power generation in the Russian Federation. Observing the empirical regression line of development, it can be concluded that the weak dependence is caused by the change in production for the seasons. But a trend of gradual small decrease of electricity production in Russia.
The largest gas and condensate fields (GM and GCM) of Russia located in the Far North region with hard climatic conditions and the lack of infrastructure, including power supplies. Therefore, the main problem during the development and operation of GM and GCM automation systems is the absence of wired communication channels between the individual gas field facilities, such as wells and treatment plant. This problem is solved by using the wireless data transfer technologies. Today there are a lot of different systems for wireless data transmission, differing transmission distance, its maximum speed, the technology used.
It’s analyzed the existing technologies and systems in this article. The requirements for the operating conditions of wireless channels of communication technology used are formulated too. The best option is the use of wireless sensor networks (WSN). It is a distributed self-organizing network, consisting of a variety of sensors and actuators connected to each other via radio. This network meets the basic requirements for the gas fields, namely, it can be combined to thousands of electronic devices, cover the space of a few kilometers due to the ability of nodes to relay messages and embedded in automation systems in the area between the managed process and the SCADA system. The authors recommend to use the system “Swift”, developed by the Russian telecommunications’ company “Swift Telematics”. The main factors affecting the reliability of operation of the FSU, as well as its individual components, are considered. The ways to improve it are shown.
There is actual problem of safety control through the technological process of oil-well tubing annealing. The oil-well tubing annealing is made with purpose of repair, especially of light and heavy oil’s deposit removal, corrosion and erosion results removal, which occurs while operating. Gas is used as a fuel. It is fed to the gas burner. Real problem while operating gas facilities is gas leaking, which leads dangerously explosive steam-and-gas mixture formation. The one of the reasons of gas leaking is broken-down safety shut-off valve. If the valve doesn’t shut off natural gas feeding, it may seem that the valve is blocked up. To detect such kind of defect it’s necessary to use the system of valve penetration control. Nowadays such systems are used on the productions, and the main element of such system is a pressure switch device. The main problem of such systems is low accuracy of measurements and low operation safety.
In order to provide safety rate for personal, and to exclude gas leaking, to prevent emergency situations and to provide safe operation of the facility, it is offered to use the system of penetration control with analog pressure sensor. The sensor is located between two valves. Pressurized leakage test is carried out in two stages. Depending on test’s results the system gives the alarm of valves malfunction or the permission to flame start-up. The result of such system integration is personal safety improving and equipment reliability improvement.
The article deals with the construction of the borehole cable’s electric model using a serial connection of two-in chain-substitution pattern.
Modeling is necessary in the study of the current measurement systems errors, when the sensor and a measuring device are at a considerable distance from each other and are electrically connected to the borehole cable located down hole. Since the conditions in which there are portions of the cable, are different, the parameters of chain equivalent circuits are unstable, i.e. chained scheme is non-uniform.
In constant current mode it’s proposed an algorithm for calculating the voltage and current at the beginning and end of the borehole cable (so called chain-substitution scheme) based on the recurrence relations obtained on the basis of mixed parameters quadrupole. As a result of the calculation the borehole cable model in the form of a single quadrupole with lumped parameters is obtained.
In non-stationary electric mode the borehole cable is also modeling by chain-modeled equivalent circuit. In this case longitudinal branches of quadrupoles haven’t inductances and in cross branches – active conductions. This is because the energy stored in the distributed capacitance of the cable is much greater than the energy stored in the distributed inductance of the cable, in therefore the latter will not have a noticeable effect on the transition process. Distributed leak active conductions also will not have much impact on the transition process as in case of AC they are much smaller than reactive conductivities due to the distributed capacitance of the cable.
A special feature of the solution is that the vector of initial conditions, is determined independently of the state and the entire load of chain equivalent circuits, and based only on idling and load connection at the output of the first. The solution for the last four-pole equivalent circuit is obtained from the matrix difference equation that describes the chain-substitution pattern.
Modern approaches to feasibility, the safe operation, industrial safety are based on the concept of automation and information guaranteed level of information security. Increasing the level of information security – is the need to implement automated diagnostic procedures of state technical means of verification data circulating in automated systems.
Solving problems diagnostics devices devoted to a sufficiently large number of works which examined approaches to the identification as sudden and gradual (functional) failure. Much less work is devoted to solving the problems of verification and validity (VaV) of data in large distributed production systems, for example, on objects of JSC “Transneft”, PJSC “Gazprom”, petroleum-refining and petrochemical complexes where a number of signals can reach tens and hundreds of thousands. Outstanding tasks are mixing different kinds of balances (energy, process liquids) and sourcing imbalance. When solving the latter problem, due to the inability to identify the sources imbalance, there is a need to substantiate the number and place of installation of measuring equipment to ensure unambiguous identification of the causes of imbalance.
This article discusses ways to improve the level of information safety by automating complex diagnostic tools, verification data. It is necessary for the implementation of the automated technological complexes, which include those subsystems are “advanced” control and safety.
For complex (in terms of criteria such as distribution areas, the number of production units, parameters and indicators) the technique of development models based on cognitive modeling ideas and approach to building diagnostics, and verification (validity).