The article is devoted to improving the representation of the geological structure of Garadagh area on V, VIIa, VIII horizons, Underkirmaky suite Productive strata and II horizon of Miocene deposits. This is achieved using seismic data from 2D and 3D surveys, exploratory drilling and analysis of test results of exploratory and development wells identifying the key areas of exploration. Some additional faults (with throw of 100-150 m) were established on the northern flank and in the eastern part of south wing on the structural maps of these horizons, along with faults defined by 3D seismic  surveys. The central tectonic block of the south wing is lowered stepwise in relation to periclinal parts of the folds. Given that the pools of oil and condensate on the southern flank are shielded by axial and diagonal faults, the most wide area of development are pools of VII and VIIa horizons, and the lowest V horizon Productive strata. In the western part of the southern wing the reservoir properties of VIII, VII and VIIa horizons are poorer. Here, small accumulations of oil and condensate, along with faults with southeastern direction are screened by the faults with northeastern directions. VIII, VIIa and VII horizons are distinguished only in the eastern part of the north wing and in central and western parts of this wing these horizons wedge and shale out. In the western part of the north wing, the number and thickness of the sandy horizons of Diatom deposits increases towards the Chuvaldag trough on the north, but in the eastern part of the north wing in periclinal parts of the North Garadagh uplift these horizons shale and wedge out. Sandy horizons of the Sarmatian stage, Chokrakian, Konkian and Karaganian horizons on the north wing are promising targets for prospects for new oil pools. VIII, VIIa and VII horizons of Productive strata within the southern wing and in the eastern periclinal parts of the northern wing are the subject of explaration to find new pools and delineate existing discoved oil pools.

In spite of the fact that geophysical surveys and exploration in great volume have been carried out in separate separate areas of Azerbaijan in different years for the purpose of studying oil-gas bearing Paleogen-Neogen sediments, at the present time the HC potential of these deposits remains untapped. This is connected on one hand with technical failures with almost half of exploration wells failing to reach the target depth, and on the other hand with structural and geological complexity together with insufficient quality of geophysical work. Because of non-optimum choice of location wells have not succeeded in encountering oil and gas bearing strata. In addition, technical work on opening, testing and development oil-qasbearing objects were poorly carried out, and this has adversely affected the results for the drilling efficiency. In the current article results are presented for the complex analysis and synthesis of all existing material on geophysical serries and the deep drilling, carried out for the purpose of studying of geological structure and oil-gas bearing Paleogen-Neogen reservoirs within separate areas of Azerbaijan. As a result of the work performed, it is recommended to carryi out explorative drilling on the most perspective traps of anticlinal and non anticlinal types in Paleogen-Neogen deposits.

This article discusses particular features of the geologic texture and oil and gas content of the lower chalky productive deposit of "Kalamkas" field. The objective of the project was to perform a detailed study of the lower  chalky section geological structure. Tectonically, the region of interest is confined to the northern part of the NorthBuzachin arch situated at the north–western end of the Turan platform. Administratively, "Kalamkas" field is  situated in the Mangistays region of the Kazakh Republic. The field was discovered in January 1976. Development started in 1979 and continues to the present day by the Industrial Administration "KalamkasMunaygaz".

This article presents advanced algorithms for control of horizontal well drilling depending on the value of the inclination angle. These algorithms have been encoded in software for control of inclined and horizontal wells. It allows the user a choice of operating parameters, to have the constant control over borehole path of wells and a choice of three offered algorithms. Application of the algorithms within the software will allow improved efficiency by a of reduction of time spent for updating, recalculation of a borehole path and on acceptance of operating decisions whilst drilling horizontal wells.

Frontal advance of water-oil displacement have been investigated on basis of regularly metered field data analysis. Parameters that specify front dynamics have been rated, namely: flow and potential functions, fractal grades for time series of values of oil flow rate, rate of produced and injected water, and minimum distance from displacement front up to exploitation well. Monofractal dimensions of Hausdorff-Besikovitsch were obtained by box-method, and generalized fractal dimensions of Renyi - on the basis of multifractal fluctuation analysis method (MFAM). Joint analysis of findings’ dynamics enables to control the regularity of frontal displacement advance, as well as its purposeful correction while identification of lateral coning.

An analytical model is derived, describing the dependence of relative permeability from the parameters defining structural features of pore space, porosity, saturation and effective pressure, which permits an evaluation of relative permeability change of oil reservoirs during development.

This article presents an algorithm for interpretation of reservoir data to determining the original value of  permeability as well as the time dependent change in permeability profile. The flow of two-phase, two-component mixtures in compressible formation is considered. Real properties of phases and mass transfer between them are thus considered. The technique presented in the article requires less data and it may be applied to define initial value and changing characteristics of gas-condensate (oil and light oil) formation permeability.

Oil, gas and condensate fields are being developed and operated in complicated mountain and geological conditions. Most of these fields are in the final stages of development. Many new fields being developed are characterized by complications at the beginning of operation (for example, difficulties of development or existence of inter-zone cross-flow in wells). Apart from geological and climatic causes often sub-optimal drilling and completion of wells is leads to further deterioration of operational reliability and durability work. The use of scientifically based methods of well operation control and the timely diagnosis of complications as they appear, offers the prospect for determination of the required complex repair measures and renewal operations.

The benefits of multi purpose use of inhibitors for late stage oil filed operations is explained in the article. Surfactant-active, wettable, emulsifying and protective properties of naphthenates obtained at Baku (oil) refinery are studied. The possibility of hydro-formation equilibrium temperature depression increase with the addition of naphthenates to alcohol is demonstrated. It is established that in water-cut oil naphthenates show salt and paraffin deposits protective properties and decreased viscosity of the produced oil.

Based upon reoviscosimetric data of oil with water, taken from "Muradkhanly" oilfields, the authors of the authors have studied the influence of degree flooding on the hydraulic characteristics of the wateroil emulsion streams. On the basis of graphical analysis it has been determined that there is a strong influence influence of the degree of flooding on the hydraulic characteristics of water-oil emulsions via the water content, which needs to be taken into account for regulating the transport properties and decrease in power requirement.

In world production of automobile gasolines the constant toughening tendency is observed not only in their operational, but also ecological characteristics. Thus not only the international and domestic standards become tougher, but also their benzene, aromatic and olefin hydrocarbons composition is essentially limited and requirements to detonation firmness raise. In Azerbaijan and other CIS countries the program of transition to autogasolines on European standards and the release termination ethylized gasolines has been accepted and realized. The basic direction of this program is changing the structure of petrol fund in the CIS, connected with increasing of components with high octane level and oxygen-containing additives in it. For maintenance of ecological requirements of European standards it is important to decrease sulphur, benzene and olefin hydrocarbons composition in autogasolines. And that is provided with modernization of reforming and naphtha hydroclearing plants, and also requirement toughenings to their raw materials is necessary. For increase in volumes of autogasolines on European standards it is important to build and input alkylation and manufacture MTBE plants at factories of the CIS. Further, it is necessary to increase involving additives in the manufacture of autogasolines.