PRESSURE САLCULATION OF THE FIRST DIFFERENTIAL SEPARATION STAGE OF GAS FROM RESERVOIR OIL

Problems of Gathering Treatment and Transportation of Oil and Oil Products Pub Date : 2024-07-03 DOI:10.17122/ntj-oil-2024-3-54-62

I. Z. Denislamov, A.I. Bakhtegareev, B.R. Fayzullin

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Abstract

The multistage separation of associated gas from reservoir oil is based on a gradual decrease in pressure and sequential selection of light components into the gas pipeline. The final tasks of the separation process are: the pressure at the first stage and the quality of commercial oil according to the pressure of saturated oil vapor. The separation of phases of borehole products is performed by material balance method, first in molar terms, then in mass terms. The thermobaric conditions for the oil and gas separation stages are selected based on the production need for heating the oil-water emulsion and stabilizing the oil at the final stage of the technological process of the final product treatment.The article considers the features of differential separation, proposes a method for express pressure evaluation at the first separation stage and reveals a linear relationship between this parameter and the methane content in reservoir oil for a sample of 41 oil production facilities. The issues of assessing of degassed oil stability after multistage separation are considered.

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储层油气第一差分分离阶段的压力计算

从储层油中多级分离伴生气的基础是逐渐降低压力，并按顺序选择轻组分进入天然气管道。分离过程的最终任务是：根据饱和油蒸汽的压力确定第一阶段的压力和商品油的质量。井孔产品的相分离是通过物料平衡法进行的，首先是摩尔分离，然后是质量分离。油气分离阶段的热压条件是根据在最终产品处理技术过程的最后阶段加热油水乳状液和稳定油品的生产需要来选择的。文章考虑了差分分离的特点，提出了第一分离阶段的明示压力评估方法，并以 41 个石油生产设施为样本，揭示了该参数与储层油中甲烷含量之间的线性关系。文章还考虑了评估多级分离后脱气石油稳定性的问题。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Problems of Gathering Treatment and Transportation of Oil and Oil Products

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