Productivity Criteria for Complex Reservoirs Based on the Study of Deep-Adsorbed Gases

The work is devoted to the development of geochemical criteria for determining the nature of saturation for deep-adsorbed gases in the core. As the object of investigation used the core material selected in the fields in the Nadym-Pyrskoy oil and gas field. In each sample, 72 components were determined, namely, hydrocarbons of different material groups: normal, branched, polycyclic, and aromatic compounds from butane to dodecane. With respect to the quantitative distribution and correlation among the components, qualitative geochemical indicators of sediment productivity have been developed. The saturation character established by the criteria of deep-adsorbed gases was confirmed by the test results. In this regard, this research method significantly increases the effectiveness of diagnostics of prospective deposits, the application of which is relevant in the territory of the West Siberian oil and gas basin, especially when studying deep-submerged deposits of complex geological structure.

Alternative Lubricants with Increased Biodegradability Based on Safflower Oil

It is of interest to use as alternative lubricants with increased biodegradability, compositions based on vegetable safflower oil, which, along with such obvious advantages as biodegradability and renewability, in its physical and chemical parameters meets the basic requirements for mineral lubricating oils.

Selection of Raw Materials for High-Quality Needle Coke

The aim of the study is to study the possibility of obtaining anisotropic needle coke, using various types of heavy pyrolysis resin, decantoil and a mixture of decantoil and heavy pyrolysis resin as raw materials in laboratory conditions. The coking process was carried out at a temperature of 470°C in a laboratory installation of periodic action in static conditions. A study of the influence of the composition of raw materials on such important indicators of coke as the sulfur content in coke and the assessment of the microstructure according to a special ball technique The production of cokes with a low scoring is due to the fact that under static conditions there is no directed movement of the flow of the raw material mixture, as is realized in industrial plants for delayed coking.

Separation of Oil Emulsion with Dynamic Membrane with Surface Layer of Polystyrene

In this paper, we studied the parameters of the process of separation of oil emulsion using a dynamic membrane of ultrafiltration PTFEg-PSd. A polymer membrane with a dynamic layer of polystyrene particles with sizes from 55 to 72 nm was obtained on a substrate of hydrophilic polytetrafluoroethylene (PTFE). The results of scanning electron microscopy showed the formation of a layer of spherical polystyrene particles on the membrane surface. The properties of a dynamic membrane were studied: porosity, moisture capacity, and wettability. After applying the polystyrene layer, an increase in the hydrophobicity of the surface layer of the membrane was established. For membrane separation, a 1% oil emulsion was prepared by dispersing the carbonaceous oil. The retention capacity of membranes for oil products from 1% oil emulsion was 96.4%, with a specific productivity of 113 dm3/m2·h which is not inferior to the performance of a commercial UPM-100 ultrafiltration membrane. Particle sizes of the dispersed phase in a 1% oil emulsion are distributed in the range from 229 to 1476 nm, after separation of the emulsion by a dynamic membrane, oil particles with sizes from 134 to 236 nm were detected in the filtrate, which indicates the removal of the bulk of the dispersed phase from the emulsion by ultrafiltration membranes.

Generalized Indicator of Efficiency of Use of Pumping Equipment

The article is devoted to assessing the efficiency of operation of trunk oil pipelines. Based on the analysis, a generalized indicator of the efficiency of use of pumping equipment was obtained, which allows us to predict the ef-ficiency of operation of pumping equipment as a whole on the technologi-cal section of the pipeline. The article also presents the main components of the indicators.

Forecasting Efficiency of Acid Impact on the Basis of Construction of Mathematical Models Taking into Account the Technology and Used Composition

Acid treatment is one of the most studied methods of stimulation of inflow in carbonate reservoirs. Nevertheless, enterprises are faced with the problem of reducing the planned production rates of wells after such events, which is due to geological and technological reasons. Taking them into account when planning impact and predicting effectiveness is possible by analyzing actual production materials using mathematical statistics methods. In this paper, using the example of a oil field in the southern part of Perm region, the main factors that influence the efficiency of acid treatments are identified, a number of multidimensional models are obtained that take into account their mutual influence and allow determining the result of a geological and technical measure.

The Research of Thermaland Chemical Treatment Methods Influence on Sorption Properties of Peat Materials

The article is about of the processing of peat material from different Russian regions as an environmental-friendly andan available sorbentsfor the oil spill response. The paper presents the results of peat materials research. Peat materialswere processed by thermal and chemical methods. Oil intensity, adsorption activity and hydrophobicity were investigatedas indicators of the processing efficiency. The dataanalysis obtained with the interpretation of the results and prospects for further work in this wayare given in the article.

Processing of Compounded Oil Feedstock with Pre-Activation of Initial Raw Material Flows

In laboratory conditions, a variant of a systematic approach to the realization of experiments, involving a combination of activation and compounding of oil feedstock before primary processing, was implemented. The influence of pre-activation of raw material flows (one or both of them) in the disintegrator DA-1 and in the vortex layer apparatus on the fractional composition of compounded feedstock with the same ratio of mixed oils was studied. The possibility of priority production of the most popular fractions from various mixtures of raw materials flows has been established. Regularities of changes in the fractional composition were analyzed using a complex characteristic of oil feedstock – fluidity.

Determination of Reservoir Properties of Gas Layers under Conditions of Creep of Rocks with the Kernel of Abel

The problem of determining reservoir properties (porosity, permeability) of gas layers developed in the depletion mode, whose rocks are subjected to creeping deformation with the Abel core, is considered. In order to determine the parameters that characterize reservoir properties of the reservoir, the authors indicate the possibility of using an appropriate numerical solution to the problem of determining the theoretical values of the reservoir volume-weighted average reservoir pressures over time, obtained using the finite difference method.

Physico-Chemical Properties of Deep-Lying Oils

The article is devoted to the urgent problem of studying the features of the properties of poorly studied oils at great depths (more than 4,500 m), the need for development of which is caused by the continuing decline in oil production in traditional oil producing provinces. The analysis of the spatial distribution of reserves across the continents and countries of deep-seated oils and changes in their physico-chemical properties and the occurrence conditions, which made it possible to identify their main features. The studies used information on 21067 oil samples from 167 oil-bearing basins of the world, obtained from the database on the physicochemical properties of oils. The features of the physicochemical properties of deep-seated oils have been established, which are manifested in a decrease in the density and viscosity of oils, in a decrease in the content of sulfur and asphalt-resinous substances, and in an increase in the content of light fractions and oil gas in comparison with oils of small and medium depths.