Full Article: PDF
Scientific Object Identifier: http://s-o-i.org/1.1/TAS-09-113-3
DOI: https://dx.doi.org/10.15863/TAS.2022.09.113.3
Language: English
Citation: Geldimyradov, A. G. (2022). Development of gas condensate fields by the method of dual completion. ISJ Theoretical & Applied Science, 09 (113), 21-29. Soi: http://s-o-i.org/1.1/TAS-09-113-3 Doi: https://dx.doi.org/10.15863/TAS.2022.09.113.3 |
Pages: 21-29
Published: 30.09.2022
Abstract: The article analyzes in detail the issues of operation of gas wells, analyzes the existing systems of dual completion (hereinafter referred to as DC) for gas wells. The positive effect of the use of DC technology is expressed in the reduction of capital investments for the construction of wells for each of the operational facilities, in the reduction of operating costs and the term of development of a multi-layer field, in the increase in hydrocarbon production and the term of final oil recovery with cost-effective operation of wells. A feasibility study of three development options for a reasonable choice and recommendations for approval was carried out. The volume and technological factors affecting the level and dynamics of economic indicators are: the volume of production drilling, the number of wells put into operation from drilling, the volume of oil, gas and condensate production, the fund of producing wells. The calculation of economic indicators was carried out in accordance with the projected levels and dynamics of technological indicators according to options using economic standards set depending on changes in technological factors. The use of the latest technologies helps to increase the production potential both by extracting hard-to-reach oil from long-exploited fields, and by putting into development previously inaccessible deep-lying oil horizons. Currently, the oil industry of Turkmenistan is facing the issue of involvement in the active development of hard-to-recover oil reserves, the bulk of which is located in low-permeability reservoirs. The importance of solving this problem is determined by the depletion of reserves in long-exploited areas with a sharp decrease in well productivity The technology with multi-packer-sectional layouts makes it possible to refine the basic highly watered, depleted oil formations with good profitability until the planned oil recovery is achieved, together with the connection of new anhydrous oil fields to dual completion under certain conditions. At the same time, through one well elevator, due to regulation by downhole shut-off valves simultaneously-separately or alternately (periodically), selection and injection into several oil formations is carried out, as well as constant accounting and monitoring of fluid production and injection of the working agent is carried out.
Key words: field, flow rate, jamming, concentric suspension, packer, operational column, depression, dual completion.
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