The paper presents an approach to development of the system that supports decision-making for tasks aimed to reduce power consumption of oil-and-gas production enterprise and to enhance the environmental safety of oil and natural gas production. The architecture and operating principles of such a system, as well as the classes of tasks to be solved, are discussed. Adjustment of the system to th...

Nigeria is a dominant economic force in sub-Saharan Africa with a strong economy as well as booming oil and agricultural sectors. However, over-dependence on the production and export of oil as well as food imports has rendered the economy vulnerable to global price fluctuations. The increasing spate of fluctuations in the world price of oil affects not only the economic sector but also agricul...

Abstract Stimulation of unconventional tight oil formations via horizontal wells has seen increasing cases fracturing infill in recent years. The effectiveness such a strategy is mainly dependent on the proper characterization stress evolution and an accurate forecast subsequent fracture propagation region neighboring after considering production performance injection schemes parent wells. In t...

Petroleum hydrocarbons are important energy resources. However, petroleum is also a major pollutant of the environment. Contamination by oil and oil products has caused serious harm, and increasing attention has been paid to the development and implementation of innovative technologies for the removal of these contaminants. Biosurfactants have been extensively used in the remediation of water a...

In this work, the dispersion of butane in heavy oil and bitumen is experimentally determined during the Vapex process with varying drainage heights. The experiments were performed at room temperature (22 o C) using butane as solvent at the dew point pressure. We used cylindrical models with different heights varying from 15 to 45 cm, packed with uniform mixture of heavy oil and glass beads. Fro...

In this paper we consider problems of optimization and selection of development systems (technologies) of oil/gas fields, consisting of some disjoint oil/gas pools (in terms of hydrodynamics), tied by resource constraints or general oil/gas production plan. In order to solve these problems, formulated as MILP models, we have developed approximate algorithm using Lagrangian relaxation (see Mikha...

• After palm oil was brought to South East Asia from central Africa in the 20 century the worldwide production has grown by 65 percent over the past decade. Demand is still increasing, especially after the European Union agreed to its 10 percent target for biofuels in their total transport consumption. • As biggest and second biggest producer of palm oil Indonesia and Malaysia account together ...