A Novel Approach to Obtaining the Optimum Pressure and Stages of Separators

Publish Year: 1399
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:

JR_IJOGST-9-1_003

تاریخ نمایه سازی: 6 خرداد 1399

Abstract:

Nowadays, the increasing demand for energy in the world is one of the main concerns for energy supply. In fact, the required energy can be obtained by increasing the production rate of fossil fuels such as oil and natural gas. However, improving the efficiency of the equipment and facilities might have a significant impact on production from hydrocarbon resources. With respect to this subject, the optimization of separation facilities will be a simple and economic choice to increase the amount of the liquid obtained from production units all over the world. One of the parameters which have a noticeable effect on the yield of the production units is the separator pressure. Also, there are other factors such as heptane plus fraction properties, well head pressure, and ambient temperature which can change the optimum separator conditions. In this study, the influence of crude oil properties on the number of stages and pressure of each separator is investigated. The result shows that the most important property of the feed which has the greatest influence on the conditions of separators is the percentage of heptane plus fraction in crude oil. Therefore, a method for the estimation of the number of separators based on the percentage of C7+ component is developed. Moreover, the threshold of heptane plus fraction for selecting the optimum number of separator stages was observed to be around 30% in the feed composition. Hence, three separators and a stock tank can separate samples with a C7+ molar fraction lower than 30%, but two separators and a stock tank are needed for samples with a heptane plus fraction higher than 30%. Finally, the results indicate an increase of about 1.3% in the oil production for the new optimization method compared to the constant-ratio method.

Authors

Ali Moazami Goodarzi

Senior Engineer of Oil & Gas Reservoir Engineering Department, Tarh O Palayesh Engineering Company, Tehran, Iran

Arman Darvish Sarvestani

Deputy Head of Oil & Gas Reservoir Engineering Department, Tarh O Palayesh Engineering Company, Tehran, Iran

Ali Hadipour

Process and Mechanical Group Manager, Tarh O Palayesh Engineering Company, Tehran, Iran

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