Abstract
Currently, the main volume of associated petroleum gas production in Azerbaijan is carried out at offshore fields. About 30 % of this volume is used for SOCAR’s own technological needs of the oil company (to maintain the level of oil production). And the rest are transported to onshore facilities and further for processing to a gas processing plant. Subsequently, dry and purified gas is sent through a gas pipeline system for use by the population, or to a network of trunk pipelines for further export. When gas is transferred to the gas lift system and ashore, it is compressed in compressors, as a result of which the temperature of the working agent rises. The latter dramatically reduces the level of operational safety of the entire process. Based on the foregoing, ensuring the required gas quality at the outlet of the compressor unit is an important and urgent task. Currently used in the gas cooling system, shell-and-tube type refrigeration units have several advantages: high heat transfer coefficient, operability in low and high pressure modes, simplicity of design and service. Along with this, these units are distinguished by large dimensions and high metal consumption, noise effect, vibration, etc. A new design of a heat exchanger for cooling associated petroleum gas at the outlet of gas motor compressors is proposed. Based on the modeling of the heat transfer process, mathematical models have been obtained that make it possible to adequately evaluate the cooling process in the proposed refrigeration device.
Highlights
IntroductionThe main volume of oil and gas production in the country is carried out at offshore fields, where the gas lift method is successfully used in parallel with the fountain method of oil production
The oil and gas sector is a determining factor in the fuel and energy complex of Azerbaijan
The main volume of oil and gas production in the country is carried out at offshore fields, where the gas lift method is successfully used in parallel with the fountain method of oil production
Summary
The main volume of oil and gas production in the country is carried out at offshore fields, where the gas lift method is successfully used in parallel with the fountain method of oil production. Gas lift refers to a mechanized method of oil production, the principle of which is based on the ability of a gas to reduce the density of a liquid and to facilitate its ascent through tubing to the surface. In this case, the gas supply can be carried out using compressors. Due to the lack of a sufficient number of appropriate compressor equipment, the degree of APG use in some offshore fields is not more than 80 %
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