During 50 - 90 years of the last century a large complex geological prospecting operation was conducted in Southern Mangyshlak. This article provides a brief overview of the results of the interpretation of geological and geophysical data and exploration drilling to evaluate the hydrocarbon potential of the pre-jurassic and jurassic-cretaceous complexes of the Zhazgurlinsk depression as well as providing a set of further exploration tasks.

This article focuses on the unsuccessful interpretation of geophysical data from the territory of SD-1. Despite of the fact that the drilling data was received more than a quarter of a century ago, still the geologists and geophysics have debates about the results. Some refute the interpretation that the well drilled into a long-term developing volcano whilst others consider misinterpretation of various geophysical methods. Most attention was given to the geological interpretation of the gravitational field, including area of SD-1, from many scientists and studies over many years. However analysis of the geotectonic regimes based on the gravity anomalies (observed and transformed) together with other geological and geophysical data - remained an elusive goal.

Based on the statistical data of the oil sand control in Bohai Bay area, it is found that sand production in many oil wells is uncontrollable due to the indiscriminate use of high quality screen. This paper develops a gravel pre-packed sand control screen by combining the characteristics of present wire wrapped screen(WWS) and mesh screen(MS). Based on the statistical result of formation characteristics in Bohai Bay Basin,a large amount ofsand control simulation experiments are reported in this paper. Principally we analyse the characteristics of formations and drawdown pressure. The results show that:

• Shale content has the biggest influence on the blockage of screen, when it ranges from 5% to 10%. The fluid productivity index per meter (FPIPM) of the former is 2.5 times higher than the latter with shale content equal to 10% . It is only a temporary solution to adjust the drawdown pressure for improving the production but this does not provide along term solution.

• Sand control design methods of Tiffen, George Gillespie and Johnson have a lot of limitations with reasonable sanding of Bohai Bay. When the uniformity coefficient (UC) is greater than 5, fine grain content >>5%, pre-packed screen can be used effectively in sand control.

• When comparing the pre-packed screen and independent high quality screen commonly used in field, we find the pre-packed screen has a wider adaptability to the formation, so it can better meet the sand control requirements in the field.

Keywords: pre-packed screen, formation adaptability, experimental evaluation, production, reasonable sanding.

History matching task for the fractured granite basement reservoir of Bach Ho field are performed by applying a computer-assisted history-matching methodology developed by the authors. The history-matching methodology including calibration workflow, method and accompanied computer tools was developed specifically for fractured basement reservoirs. The obtained reservoir model is compared with the manual history-matched model of the operator of "Bach Ho" field. The comparison shows that the developed computer-assisted history-matching methodology is very promising in improving the agreement between simulated results and observed field data.

Keywords: foam drilling, numerical simulation; power law, gas-liquid two phase flow, pressure prediction.

The study shows that kerosene - alkaline wastes (KAW), obtained from the refinery named after Heydar Aliyev, dissolve in distilled water leaving no sediment. Therefore, we decided to check the feasibility of this solution as an agent for enhancing oil recovery. The determination of oil-water interfacial tension of kerosene - alkaline waste solution in different concentration distilled water gave positive results. The experiments on linear reservoir models were conducted aimed at verifying the feasibility. In the first two steps, oil was displaced from the porous medium by fresh and distilled waters. During a third experiment under the same conditions, oil was displaced by 5% KAW distilled water solution. The results of the pilot study show that application of 5% kerosene - alkaline waste solution in distilled water for the high-viscosity oil reservoirs will provide enhanced oil production.

The article concerns the development and testing of a multipurpose reagent for natural and associated gas dehydration and their preparation for transport at the offshore oil and gas fields of "Azneft". The paper presents the results of physico-chemical and technological parameters of the newly developed local petrochemicals based complex reagent. The proposed integrated absorbent proved to have synergetic properties. The paper also presents the results of industrial tests of the proposed complex reagent for gas dehydration, prevention of hydrate development and salting during gas recovery and preparation for transmission.

Here, the example of gas and oil reservoir horizon VII of the "Sangachaly-Duva Hara Zyra" is considered where the gas produced in the development consists partly of free gas which is produced along with the gas dissolved in the oil. Thus, in the production of oil wells, oil and dissolved gas is present as well as free gas. Using a modified version of the formula due to M.A.Zhdanov, a method is proposed to estimate the contribution of free gas in these oil wells.

This article clarifies the design and engineering principles of bundle (multichannel) pipelines construction for transporting aggressive environments when glass-reinforced plastic (GRP) pipes are used as inner high pressure ones. The concept of recovery of worn-out oil and gas pipelines based on the principles of channeling developed by the authors is suggested.

In this article the most important features of innovative activity and also the direction of its investment are considered both from the points of view of the state, foreign partners and private investors. The most important vectors of influence of an investment component on innovative activity are defined, and also the role of investments into innovations as one of major factors of economic growth is shown.

In this paper the methodical approach to the formation and identification of clusters is offered. The introduced methodological approach includes following staged analysis and evaluation of cluster creation conditions, development of cluster structure model, methodical maintenance of the effective functioning of clusters and the evaluation of the cluster operation effectiveness.

A new deconvolution method of solving a convolution equation for a square-summed function is proposed. Applying the approximation by spline-function, the approach has used a convolution equation on wavelet-frame. Solution in framelets for the original problem have been based on the algorithms of ‘reduction problem' solving within a multi-resolution analysis. This solution was achieved using a finite set of experimental data with noise having a bounded square norm.