The article is devoted to the researches in porosity parameter variability depending on the facial conditions of sedimentation and the type of clay. The object of the researches is BV1 layer in one of the deposits of Western Siberia.

The analysis has showed the variability of reservoir characteristics in a vertical sense and the bimodal distribution of the porosity. Results that are empirically established in the analysis of the quality of framework was obtained using detailed correlation and separation of facies in reliance on electrometric models byV. S. Muromtsev and core material analysis.

The Central question of this article is to identify the specifics of the hydrogeological conditions of the wastewater, consider the example of Vyngapurovskoye gas field. The concept of the research is determined by the understanding of the disposal of wastewater in an effective and environmentally friendly method of disposal of industrial waste, allowing you to maintain the balance of natural conditions of the northern part of Western Siberia.

A geological model of the structure and accumulation of lower paleozoic sediments in the north-west of the East European platform is overviewed. Prospects of oil and gas potential are estimated and land leases for prospecting wells are marked.

The 21st century witnessed the development of the oil extraction industry in Russia due to the intensifica- tion of its production at the existing traditional fields of Western Siberia, the Volga region and other oil-extracting regions, and due discovering new oil and gas provinces. At that time the path to the development of fields in Eastern Siberia was already paved. The large-scale discoveries of a number of fields made here in the 70s-80s of the 20th century are only being developed now. The process of development itself is rather slow in view of a number of reasons. Create a problem of high cost value of oil extraction in the region. One of the major tasks is obtaining the maximum oil recovery factor while reducing the development costs. The carbonate layer lying within the Katangsky suite is low-permeability, and its inventories are categorised as hard to recover. Now, the object is at a stage of trial development,which foregrounds researches on selecting the effective methods of oil extraction.

The represented method allows to create three-dimensional geological models of collectors of paleozoic basement, which provides a significant economic effect in the subsequent deposit explorations for typical russian companies - subsoil users, having a limited amount of data. In geological modeling of the collectors of paleozoic basement, the application of the method of dual porosity (double medium) is most relevant. The created approach allows to refine the geological model with an increase of geological reserves by 30 % in reservoirs with natural fracturing.

To increase the efficiency of hydrodynamic well testing after the geological and technical measures, it is proposed to record the pressure change at the bottom of the well during the development by means of the GIC. Such a solution will allow to combine the process of well development after the IPF with the study, thereby increasing the control over the success of the repairs carried out without additional downtime in real time.

Some of gas-condensate fields lying at great depths are characterized by abnormally high reservoir temperatures. One of the problems during the operation of wells at depleted fields which are developed without methods to maintain reservoir pressure is fluid accumulation at the bottom. The Yubileinoye gas-condensate field is selected as an example for study. At the field abnormally high reservoir temperature is combined with low molecular weight of formation fluid. Since the change in the content of components produced from the formation to the surface of the gas-condensate mixture changes condensate emission even at the constant volume of gas production. It is important to understand the physical processes occurring in the operation of wells.

A detailed analysis of the applicability of the calculation formulas for the delivery rate was carried out using the example of the well test of a horizontal well 57G in deposit 1.

The well testing of gas-condensate horizontal wells are discussed in the article and the comparative analysis of borehole flow capacity, depending on the mode of it’s operation is presented. Extra attention is focused on the issue of timely identification of the reasons for the reduction of fluid withdrawal from the reservoir. The presence of high skin effect is proved, which confirms the existence of low-permeability of bottomhole formation zone related to condensation in the immediate area of the horizontal wellbore.

Analysis of the Russian and foreign expertisein optimizing the drilling process suggeststhe need to develop new methods for solving the problems associated with the process of drilling directional wells, in order to prevent possible complications and on their basis solvethe optimization problems in the field of drilling, which seems a relevant scientific and practical task.

The authors of the paper observed considerable effect on performance time factor based onthe experience of bottom hole zone treatment with the use of hydrochloric acid solution preventing emulsification. The paper presents models and algorithms allowing planning effectiveness, choice of wells and technologies considering this factor in the real time mode.

Work of a gas well in the conditions of formation of a sandy stopper is considered. On the basis of the dvukhchlenny law of nonlinear filtering gas to a well, the mathematical model of growth of a sandy stopper is shown. The prepositional model will be approved with trade data. The inversion point on a graphics of dependence of an output of gas on the specified height of a sandy stopper is shown.

Hydraulic fracturingis the most appropriate technological method of stimulating reservoir fluid inflow into the well bore. The efficiency of this method is determined by the properties of disperse and dispersion media. The article gives analysis of various types of fracturing fluids and shows promising applications of biopolymer dispersion media. The authors proposed a composition of fracturing fluids with a biopolymer and destructor.

In the article studies of oil-filled compositions with the addition of blast-furnace slag for strength at elevated temperatures are presented. The rheological parameters of the slag cement slag cement mortar, as well as the setting time, were studied. Conclusions are drawn about the prospects of further study of slag cementcontaining compositions.

The analysis of well operation at the Yamburgskoye field was carried out. It has been established that the number of self-kill wells depends on the velocity of the gas-liquid flow in the well production tubing. However, in most production wells, the gas-liquid flow rate was below the minimum for fluid production from the wellbore. One of the effective methods to combat self-kill of wells is processing well bottom-holes with compositions of solid and liquid surfactants. The developed surfactant compositions make it possible to remove a condensation liquid with an admixture of formation water from wells, without adversely affecting the gas gathering network and the booster complex.

Based on the analysis of the existing material on pumping liquids with pressure pulses into the borehole we suggest to consider wellhead injection. The processes of the pressure pulse propagation in the pumped liquid by using wellhead pulsers. Based on the mathematical expressions graphs of the pressure values of the borehole depth and radius sweep circuit are constructed. According to the results recommendations are given on the development of optimal wellhead pulser designs.

The effective development of deposits during the period of falling production is largely determined by the ideology of the formation of new approaches to solving the problems of transportation and use of low-pressure gas that will be demand by the market. Creation of flexible schemes for increasing the pressure of gas and its processing into commodity products will provide an opportunity to realize energy efficient uses of produced low-pressure gas.

Calculations of the thermodynamic characteristics of air flows were carried out when several local sources were heated by the underlying surface. The basic mathematical model is the complete system of Navier-Stokes equations with constant coefficients of viscosity and thermal conductivity when gravity and Coriolis are taken into account. Numerical experiments were carried out using an explicit difference scheme with an appropriate choice of the initial and boundary conditions. The varying local pressure differences found during the calculations lead to the corresponding gas flows both in horizontal and vertical planes.

It is shown that it is possible to significantly improve the energy efficiency of compressor stations on gas pipelines in underloading conditions. Significant energy savings can be obtained through the use of optimization calculations of the design characteristics of the real gas pumping units and to implement such an urgent task it is necessary to develop a variety of mathematical models of system analysis with the possibility of their implementation in the design optimization of compressor station complexes.

The analysis of polymer additives under different conditions and concentrations is performed, and the coefficient of hydrodynamic drag force was found to decrease as the temperature decreases. Expediency and economic benefit of using polymeric additives for pumping of hydrocarbon fluids in the аrctic conditions is confirmed.

An instruction for implementing the increase in the capacity of main pipelines to restore operating pressure has been developed. The implementation of these methods in «Transneft» has shown high efficiency.

The paper considers the developed and implemented concept of passing of contact processes and control of the stressed state (dynamic strength) simultaneously from the front and rear surfaces of the cutting parts of tools from STM with the fine turning of heat-resistant alloys.

The paper considers the design and operation of electromechanical drive of sucker rod pumps, which received a patent for utility model. The proposed device allows to significantly reduce weight and size dimensions of the drive mechanism of serial sucker rod pumps.

The accuracy problem of engineering products on the CNC machines processing increase. The authors propose a solution to this problem by providing input of the operational adjustments of trajectory control of the machine executive bodies. The necessity of creation of mathematical models of technological processes diagnostics of the system machine - fixture - tool - workpiece.

The paper shows that high temperature heating (from 1 100 to 1 170 0C) for the subsequent quenching of high-chromium steels of a martensitic-carbide class 95X18 and X12MFL provides structure to the metal base, which consist of high-carbon containing martensite and residual metastable austenite with some carbides. The resulting structure has a high capacity for frictional hardening. Experiments with cold processing treatment of the analyzed steels also showed that after high-temperature quenching with subsequent cooling to -70 0C, sufficient cooling martensite is formed, which in combination with residual metastable austenite, provides an increase of abrasive wear resistance by 25 % compared to high temperature annealing.