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Kurbanbayev M.I.,JSC Kaz NIPI Munay Gas | Dyshin O.A.,Oil Gas Scientific Research Project Institute | Keldibayeva S.S.,JSC Kaz NIPI Munay Gas | Mamedbeyli T.E.,Oil Gas Scientific Research Project Institute
SOCAR Proceedings | Year: 2013

The analysis of a state development of the 13-th horizon, "Uzen" field, on the basis of statistical modelling of life cycle is presented in the article. The developmental stages of the field and the duration of each is defined. Using a non-linear logistic model for the cumulative oil production has given estimates of the recoverable reserves. Based on the values of cumulative oil production in the final stage, oil production was predicted and the design parameters for the current development system were evaluated using an adaptive Kalman filter in discrete time.


Kurbanbayev M.I.,JSC Kaz NIPI Munay Gas | Keldibayeva S.S.,JSC Kaz NIPI Munay Gas
SOCAR Proceedings | Year: 2013

Oil in the "Uzen" field is non-Newtonian with a high paraffin content, asphalt and tar and its positive temperature curing. A long period of cold waterinjection is the possible cause of loss of asphalt and tar and poor permeability of the productive reservoirs. Contamination layer zones (CVC), high skin factor lead to a decrease in the productivity of wells. In order to increase production, at the various treatment methods have been applied at the bottomhole zone of wells. The most effective of these with 75% success rate is a method of hydraulic fracturing of the formation. One of the important factors of success of ongoing fracturing of wells is the correct choice. We present in this paper an analysis that shows a method of selection of wells that is promising from the point of fracturing.


The article briefly describes the current state of oil-field well-stream gathering system on "Uzen" and "Karamandybas" fields of JSC "Ozenmunaygaz". There presents the review of standard and updated group units, their differences, the equipment specifications.


Sisenbayeva M.R.,JSC Kaz NIPI Munay Gas
SOCAR Proceedings | Year: 2013

The main factors which complicate and affect the production of producing wells are considered to be paraffin, deposits of inorganic salts and solids in the produced fluid. The article considers the results of laboratory studies of the most effective inhibitors against paraffin and scaling that were carried-out on the model of Uzen field reservoir water. Based on these test results the most effective inhibitors have been defined for the Uzen field. The inhibitor recommended for pilot testing was in the range of 75% - 90% effective at a inhibitor concentration of between 5 mg/l - 30 mg/l. The laboratory test results allow us to recommend the tested chemical reagents for pilot testing at the Uzen field.

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