SOCAR Proceedings

SOCAR Proceedings

Published by "OilGasScientificResearchProject" Institute of State Oil Company of Azerbaijan Republic (SOCAR).

SOCAR Proceedings is published from 1930 and is intended for oil and gas industry specialists, post-graduate (students) and scientific workers.

Journal is indexed in Web of Science (Emerging Sources Citation Index), SCOPUS and Russian Scientific Citation Index, and abstracted in EI’s Compendex, Petroleum Abstracts (Tulsa), Inspec, Chemical Abstracts database.

M.A.Jamalbayov (Institute Applied Mathematics)

Mathematic modeling of the development of gas condensate reservoir in relax-compressible formations

The filtration of double-phase and two-component mixtures in relax-compressible formations is considered. The mathematical model and algorithm for the solution of a problem of a filtration of double-phase and two-component hydrocarbon liquids in relax-compressible environments is offered. It is thus considered real properties of components and an interphase exchange. The influence of a relaxation time to the process under consideration is investigated. The solution obtained can be applied to planning and designing of the development of gas-condensate and light oil deposits.

DOI: 10.5510/OG20120400131


H.M.Ibragimov, A.A.Gadzhiev ("OilGasScientificResearchProject" Institute)

Concerning the application of modelling programs for defining optimum operation of gaslift wells

In this article we present results of program calculations and their application for improving the operation of gas-lift wells for the Gjuneshli field. The definition of optimum operational parameters for gas-lift oil wells was one of the primary goals. Application of these special modelling programs to operating oil-wells enables a check on the accuracy of the proposed operating parameters and permits (without significant material and time expenditures) to perform studies to design optimum construction of oil and gas production. Further, by use of the program the most applicable correlation for a gas liquid mixture in tubing has been determined to be that of Hagedorn Brown which has been instituted in the form of a table. Some sensitivities of the fluid rate are introduced to various arguments. On the basis of program calculations it was recommended to modify some parameters of wells in operation (to elongate the tubing and to increase the diameter of a surface choke).

DOI: 10.5510/OG20120400132


F.Gumrah, A.Aliyev, C.Guliyeva, O.Ozavci ("Bahar Energy" Operating Company)

Determining reservoir characteristics and drive mechanisms for an oil reservoir

This study presents the application of practical methods that can be used to determine the performance and the drive mechanisms of a selected oil reservoir (Block 7, SP Reservoir) in the Gum Deniz Oil Field, Azerbaijan. It demonstrates the importance of monitoring field performance on a regular basis and gathering all relevant rock and fluid data. The oil in place, average reservoir pressure, amount of water encroachment, fluid saturations, recovery factor and the type of reservoir drive mechanisms were estimated based on field production data. The estimated oil in place was 38.5 MMstb by volumetric method and 35.39 MMstb by material balance analysis. It was verified that the fluids were mainly produced from the SP reservoir within the well-defined boundaries of Block 7. Initially, the dominant reservoir drive mechanism was depletion drive together with compaction drive and fluid expansion mechanisms. After water encroachment, both water drive and depletion drive mechanisms played important roles in fluid production. The current recovery factor was obtained as 25.0% of OOIP. The ultimate recovery was predicted as 37.0% of OOIP. Knowledge of reservoir characteristics, which include drainage area, permeability, porosity, pore compressibility, change in pore volume, amount of water influx and type of reservoir drive mechanisms, gives insight into recovery efficiency and the need for reservoir development strategies that lead to possible improved oil recovery activities.
Keyword: Gum Deniz Oil Field, material balance analysis, pore compressibility, reservoir drive mechanisms, loose sand

DOI: 10.5510/OGP20120400129


D.Fucheng, D.Jingen, Y.Ying, W.Lihua, Y.Wei (China University of Petroleum, Changjiang University)

Gravel pre-packed screen development and filled parameters optimization research

Through the research of current methods of mechanical sand control and gravel packed sand control, we find that the gravel packed sand control method is more effective, with longer period of validity, and less sensitive to the shale content, which make it capable of obtaining relatively high and stable productivity after commission. However the operational cost of this method is also higher than many other common mechanical sand control methods, whose field well completion operations are easer and have lower expenditure. The paper compares the advantages of gravel packed sand control, wire wrapped screen (WWS) and mesh screen (MS), develops gravel pre-packed sand control screen. Appraisal experiments have been conducted to test the effectiveness of the various sand control screens. Based on the experimental results, we find that the greater the gravel size, the more serious the sand invasion phenomenon becomes. When the gravel size is smaller, fluid specific productivity index increases and the bigger the gravel pre-packed thickness, the greater the specific fluid productivity index. When the thickness reaches 30 mm and above, the increase of fluid productivity index per meter is still small. So gravel pre-packed sand control screen is proposed with optimum packing of 30 mm of gravel thickness, 20-40 meshes of gravel size. Compared with commonly used premium screen in the field, productivity is increased by approximatley 3.23 times, moreover, its sand control ability is much better than current screens.

Keyword: pre-packed screen, sand control, experiment appraisal, gravel

DOI: 10.5510/OGP20120400130


E.K.Tolepbergenov (JSC "KazNIPIMunayGas")

New approach for refining of oil pit on "Uzen" and "Karamandybas" fields

The paper proposes introduction of difficult destructible oil processing plant (PDDO) and plants of complex lake oil treatment (CLOT) on the example of fields "Uzen" and "Karamandybas" JSC "Ozenmunaygaz". Plants of PDDO and CLOT put into operation are an effective solution for cleanup of polluted area and processing of raw materials accumulated in the lake oil and provide easy maintenance of these facilities due to technological equipment already available to oil companies. We propose change of technological workflow for preparation of products with the introduction of additional hardware in order to improve the product processing technology’s efficiency on PDDO unit.. Implementation of the proposed technology will reduce the corrosion of tanks at PDDO’s object, thus increasing their service life, and will improve the quality of prepared products..

DOI: 10.5510/OG20120400133


Y.A.Melikov (ASOA)

Investment valuation postponement of the implementation process of oil production

The effectiveness of investment due to postponement of the implementation of oil production is evaluated given the time factor and price trends for the development and exploration of oil fields. More efficient use capital for oil field development can be obtained using a suitable delay for the implementation of investment projects.

DOI: 10.5510/OG20120400134


T.A.Aliyev, G.A.Guluyev, E.R.Aliyev, T.A.Alizade, U.E.Sattarova (ANAS Cybernetics Institute)

ROBUST-NOISE technologies to monitor the latent time of change of seismic stability of offshore fixed platforms and piers

In control systems using conventional technologies for signal analysis, results of monitoring of changes in seismic stability of offshore platforms are obtained only when changes assume an express form. The offered technologies will allow detecting those changes in their initial latent period. This will make it possible to organize timely preventive measures against further serious deformation in the most vulnerable units of the structure, which will allow a considerable reduction in the total volume of repair work and expenses as well as diminishing the probability of sudden destruction.

DOI: 10.5510/OG20120400136


A.G.Rzayev (ANAS Cybernetics Institute)

Automation of processed of oil extraction by means of sucker rod pumps with application of noise technologies

The paper analyzes the state-of-the-art of automation and tele-automation of the most common processes of oil extraction which is oil production by means of sucker rod pumps (SRP) and measuring daily output (flow rate) of wells by means of "Trap" and "Sputnik" type group metering stations (GMS). Algorithmic analysis of dynamometer cards with application of such noise technologies as position-binary technology and robust noise monitoring technology is suggested for more reliable and automated determination of causes of malfunction of underground equipment.

DOI: 10.5510/OG20120400137


S.A.Myrzagaliyeva, V.F.Zaytsev (JSC "KazNIPIMunayGas")

Environmental assessment during drilling operations on oil-gas fields

The purpose of the study is the integral assessment of drilling process impact on environment in the area of Tengiz and Korolev fields on the basis of one appraisal well. The pollution aspect within development of Tengiz and Korolev fields is of high priority as the issues of ecosystem preservation are foreground. The main singularity of this data is the analysis and assessment of typical prospecting drilling event. Meanwhile findings and recommendations are set out so that environmental restrictions formed on the base of the assessment would apply for each specific appraisal well. The article comprises the estimation of pollutant emissions within prospecting drilling in Tengiz field, modelling of atmospheric air pollution as well as wastes investigation.

DOI: 10.5510/OG20120400135