An Investigation on Gas Lift Performance Curve in an Oil-Producing Well

Saepudin, Deni; Soewono, Edy; Sidarto, Kuntjoro Adji; Gunawan, Agus Yodi; Siregar, Simon; Sukarno, Pudjo

doi:10.1155/2007/81519

Cited by 15 publications

(7 citation statements)

References 7 publications

(6 reference statements)

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“…They must be accessible and protected against accidental intrusion [13]. The emergency shutdown system should be designed to take into account the possibility of undesirable situations so that it can return the system to a safe state in the event of a power outage or loss of control [14]. The emergency stop system shall activate the stop when any inclination is detected in the equipment or devices.…”

Section: Formulation Of the Problemmentioning

confidence: 99%

Refinery Emergency Shutdown System Based on High Safety Analysis

Mehdiyeva

Bagirzade

2022

JERR

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Safety issues in experimental studies of gas-lift wells are considered, methods of well research are analyzed, and functions of approximation of the main characteristics of a gas-lift well are analyzed. It is shown that in order to ensure safety in experimental well testing in order to obtain the most accurate results, it is advisable to use the probabilistic characteristics of measurements and the cost of resources allocated for research. Requirements have been set for the sequence and by whom the suspension operations should be carried out. The issues of creating a database for system design are considered. The issue of optimization for design in accordance with the practical system is considered.

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Section: Formulation Of the Problemmentioning

confidence: 99%

Refinery Emergency Shutdown System Based on High Safety Analysis

Mehdiyeva

Bagirzade

2022

JERR

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“…Oil production increases typically as gas injection increases. However, too much gas injection will cause undersupply, where the gas phase moves faster than liquid (Saepudin et al, 2007;Sukarno et al, 2009). This condition will ultimately lead to a reduction in oil production.…”

Section: Literature Reviewmentioning

confidence: 99%

Gas lift optimization in the oil and gas production process: a review of production challenges and optimization strategies

Okorocha

Chinwuko

Mgbemena

et al. 2020

Int. J. Ind. Optim.

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Gas Lift operation involves the injection of compressed gas into a low producing or non-performing well to maximize oil production. The oil produced from a gas lift well is a function of the gas injection rate. The optimal gas injection rate is achieved by optimization. However, the gas lift, which is an artificial lift process, has some drawbacks such as the deterioration of the oil well, incorrect production metering, instability of the gas compressor, and over injection of gas. This paper discusses the various optimization techniques for the gas lift in the Oil and Gas production process. A systematic literature search was conducted on four databases, namely Google Scholar, Scopus, IEE Explore and DOAJ, to identify papers that focused on Gas lift optimizations. The materials for this review were collected primarily via database searches. The major challenges associated with gas lift were identified, and the different optimization strategies available in the literature reviewed. The strategies reviewed were found to be based on artificial intelligence (AI) and machine learning (ML). The implementation of any of the optimization strategies for the gas lift will enhance profitability, reduce operational cost, and extend the life of the wells.

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“…For an optimum production, the lift gas has to be injected at the correct rate. Excessive or inadequate injected gas can lead to a suboptimal production and flow instability [13]. So far, the various methods proposed by the researchers do not directly compute the gas lift rates to individual strings for the dual string completion.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Model for Determining Dual String Gas Lift Split Factor in Oil Producers

et al. 2019

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Upstream oil production using dual string completion, i.e., two tubing inside a well casing, is common due to its cost advantage. High pressure gas is employed to lift the oil to the surface when there is insufficient reservoir energy to overcome the liquids static head in the tubing. However, gas lifting for this type of completion can be complicated. This is due to the operating condition where total gas is injected into the common annulus and then allowed to be distributed among the two strings without any surface control. High uncertainties often result from the methods used to determine the split factor—the ratio between the gas lift rate to one string over the total gas injected. A hybrid model which combined three platforms: the Visual Basics for Application programme, PROSPER (a nodal analysis tool) and Excel spreadsheet, is proposed for the estimation of the split factor. The model takes into consideration two important parameters, i.e., the lift gas pressure gradient along the annulus and the multiphase pressure drop inside the tubing to estimate the gas lift rate to the individual string and subsequently the split factor. The proposed model is able to predict the split factor to within 2% to 7% accuracy from the field measured data. Accurate knowledge of the amount of gas injected into each string leads to a more efficient use of lift gas, improving the energy efficiency of the oil productions facilities and contributing toward the sustainability of fossil fuel.

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An Investigation on Gas Lift Performance Curve in an Oil-Producing Well

Cited by 15 publications

References 7 publications

Refinery Emergency Shutdown System Based on High Safety Analysis

Refinery Emergency Shutdown System Based on High Safety Analysis

Gas lift optimization in the oil and gas production process: a review of production challenges and optimization strategies

Hybrid Model for Determining Dual String Gas Lift Split Factor in Oil Producers

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