Performance of a gas-lifted oil production well at steady state

Yadua, Asekhame U.; Lawal, Kazeem A.; Eyitayo, Stella I.; Okoh, Oluchukwu M.; Chinyere, C.; Matemilola, Saka

doi:10.1007/s13202-021-01188-0

Cited by 11 publications

(3 citation statements)

References 21 publications

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“…It analyzes well characteristics like reservoir pressure, temperature, fluid properties, and completion design. Conventional gas lift design is based on descended liquid column depth and maximum working gas pressure [6] . Fig.…”

Section: Gas Lift Designmentioning

confidence: 99%

Analysis of Well Performance Based on Bottom Hole Pressure Calculations for Gas Lift Application

Mohamed,

Abdallah,

Almahdawi

et al. 2023

J. Phys.: Conf. Ser.

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This paper focuses on optimizing gas lift techniques in four wells located in the North Sea to overcome the common issue of low reservoir pressure. Gas lift is a common artificial lift technique used in wells with low reservoir pressure where the natural pressure of the reservoir is insufficient to bring the oil to the surface. The success of gas lift optimization depends on identifying the deepest injection point, gas injection rate, and pressure of the gas injected. The paper proposes the deepest injection points for wells A-03, A-09A, A-10T2, and A-12BT2 as 3809.38 ft, 6649.7 ft, 3559.88 ft, and 3979.04 ft, respectively. The injection rates analyzed in this paper range from 1-10 mmscf/day, and injection pressures of 500 psia, 1000 psia, and 1500 psia were used. The response of each well to gas lift was analyzed, and increasing injection rate and pressure were found to increase oil production rate. The optimal gas injection rate and pressure for wells A-03, A-09A, and A-12BT2 were found to be 10 mmscf/day and 1500 psia, while for well A-12BT2, the best oil recovery was obtained at an injection rate of 3 mmcsf/day and injection pressure of 1500 psia. Tubing size within the range of 1-5.5 inch was examined, and it was found that increasing tubing size enhances oil flow rate. The optimal tubing size for the wells was found to be 5.5 inch, taking into consideration factors such as flow rate, pressure, temperature requirements, and fluid type.

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Section: Gas Lift Designmentioning

confidence: 99%

Analysis of Well Performance Based on Bottom Hole Pressure Calculations for Gas Lift Application

Mohamed,

Abdallah,

Almahdawi

et al. 2023

J. Phys.: Conf. Ser.

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“…Gas lift systems are used to increase oil production rates by injecting compressed gas into the lower section of tubing. The optimization of gas lift allocation is crucial in order to maximize oil production rates; as excessive gas injection can reduce oil production [23][24][25]. In this study, the gas lift allocation was optimized using a genetic algorithm under the constraints of the gas lift system.…”

Section: Fig 1 Gas Lifting Componentsmentioning

confidence: 99%

Optimization of Gas Lifting Design in Mishrif Formation of Halfaya Oil Field

Ahmed,

Sadeq,

Ben Mahmud

2023

IJCPE

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The optimization of artificial gas lift techniques plays a crucial role in the advancement of oil field development. This study focuses on investigating the impact of gas lift design and optimization on production outcomes within the Mishrif formation of the Halfaya oil field. A comprehensive production network nodal analysis model was formulated using a PIPESIM Optimizer-based Genetic Algorithm and meticulously calibrated utilizing field-collected data from a network comprising seven wells. This well group encompasses three directional wells currently employing gas lift and four naturally producing vertical wells. To augment productivity and optimize network performance, a novel gas lift design strategy was proposed. The optimization of gas allocation was executed to maximize oil production rates while minimizing the injected gas volume, thus achieving optimal oil production levels at the most effective gas injection volume for the designated network. The utilization of the PIPESIM Optimizer, founded on genetic algorithm principles, facilitated the attainment of these optimal parameters. The culmination of this study yielded an optimal oil production rate of 18,814 STB/d, accompanied by a gas lift injection rate of 7.56 MMscf/d. This research underscores the significance of strategic gas lift design and optimization in enhancing oil recovery and operational efficiency in complex reservoir systems like the Mishrif formation within the Halfaya oil field.

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“…The second method is based on the assessment of the available injection gas volume and then calculating the gas injection rate that has the highest amount of oil produced across many wells [5]. Gas lift operations can be affected by various factors including the rate of injected gas, injection pressure, the specification of gas compressor, and other facilities [6]. These factors represent a constraint that should be considered during the gas lift optimization process which is a challenging task.…”

Section: -Introductionmentioning

confidence: 99%

Maximizing Production Profits: Optimizing Gas Lift Design in the Halfaya Oil Field

Ahmed,

Sadeq

2024

IJCPE

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Gas lift is one of the most common artificial lift methods which is effectively utilized in the oil industry for enhancing production. However, proper gas allocation into wells can be challenging due to various limitations such as shortage in injected gas and economic considerations. Therefore, the current research is conducted to address the critical requirement to effectively distribute gas to maximize profits in the Halfaya Oil Field- Mishrif formation. Continuous gas lift is one of the most commonly used artificial lift methods. To enhance production rate, a sufficient amount of gas is injected into the production tubing at specific depths to reduce the liquid column pressure as each well has an optimal point for production in an oil reservoir. On the other hand, constraints of gas availability restrict achieving the optimal state of production. Such restrictions combined with economic limitations including high gas prices and compression costs, emphasized the necessity for optimal methodology to enhance oil production. Aside from the importance of the Halfaya oil field, there are limited relevant studies on artificial lifting methods specifically associated with the gas-lifting method used in this paper. Thus, the purpose of the current investigation is to propose a well-tested gas lifting design for oil production improvement. The approach combines the skill of the fmincon function built in MATLAB as an optimizer and the PIPESIM network model to create gas lift performance curves. This resulted in an oil production rate of 18860 STB/d, with a gas lift rate of 9.42 mmscf/d. Establishing such a systematic optimization process can manage the challenges of gas allocation in the Halfaya Oil Field towards maximizing production rates and ultimately increasing net profits.

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Performance of a gas-lifted oil production well at steady state

Cited by 11 publications

References 21 publications

Analysis of Well Performance Based on Bottom Hole Pressure Calculations for Gas Lift Application

Analysis of Well Performance Based on Bottom Hole Pressure Calculations for Gas Lift Application

Optimization of Gas Lifting Design in Mishrif Formation of Halfaya Oil Field

Maximizing Production Profits: Optimizing Gas Lift Design in the Halfaya Oil Field

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