Mechanistic Design of Conventional Plunger-Lift Installation

Marcano, L.; Chacin, J.E.

doi:10.2118/23682-pa

Cited by 22 publications

(7 citation statements)

References 3 publications

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“…In 1987, Beeson et al [5] finally obtained a nomogram representing the characteristics of a plunger gas lift by analyzing some data. In 1994, Marcano et al [6] established a dynamic model of plunger gas lift considering the fluid loss during the lifting process. In 1995, Baruzzi et al [7] proposed a dynamic model that simply describes the plunger gas lift based on experiments.…”

Section: Q Gmentioning

confidence: 99%

A Dynamic Plunger Lift Model for Shale Gas Wells

Miao¹,

Liu²,

Feng³

et al. 2023

Fluid Dynamics &Amp; Materials Processing

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At present, the optimization of the plunger mechanism is shale gas wells is mostly based on empirical methods, which lack a relevant rationale and often are not able to deal with the quick variations experienced by the production parameters of shale gas wells in comparison to conventional gas wells. In order to mitigate this issue, in the present work, a model is proposed to loosely couple the dynamics of gas inflow into shale gas wells with the dynamics of the liquid inflow. Starting from the flow law that accounts for the four stages of movement of the plunger, a dynamic model of the plunger lift based on the real wellbore trajectory is introduced. The model is then tested against 5 example wells, and it is shown that the accuracy level is higher than 90%. The well 'switch' , optimized on the basis of simulations based on such a model, is tested through on-site experiments. It is shown that, compared with the original switch configuration, the average production of the sample well can be increased by about 15%.

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Section: Q Gmentioning

confidence: 99%

A Dynamic Plunger Lift Model for Shale Gas Wells

Miao¹,

Liu²,

Feng³

et al. 2023

Fluid Dynamics &Amp; Materials Processing

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“…Efficient operations with plunger-lift systems rely on good control and optimization of the flowing, after-flowing and shut-in cycle, which may be complex (Tang, 2009;Gasbarri and Wiggins, 2001), particularly for multi-well systems producing to shared surface facilities. From the literature, however, it does not seem to be a common understanding of the actual effect of the solid interface provided by a plunger for increasing the volume of lifted liquids, as most models neglect liquid fallback when the plunger rises (Lea, 1982;Marcano, 1994;Gasbarri and Wiggins, 2001). Tang (2009), on the other hand, includes this effect in a high fidelity model, and reports that almost no liquid remains in front of the plunger when hitting the wellhead.…”

Section: Shale Gasmentioning

confidence: 99%

Shut-in based production optimization of shale-gas systems

Knudsen

Foss

2013

Computers & Chemical Engineering

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“…A set of equations obtained through force analysis of the plunger determined the plunger's position, speed, acceleration, constantly changing casing pressure, and other working parameters. Marcano and Marcano (1994) [18] combined the laws of the conservation of momentum and conservation of mass to develop a complete dynamic model of the plunger's up-and-down strokes. In this model, the Vogel's equation describes the fluid inflow, and combining it with the experimental data derives quantitatively the channeling flow of the gas under the plunger and leakage of the upper liquid section of the plunger.…”

Section: Introductionmentioning

confidence: 99%

Research on the Inflow Performance of the Plunger Lift in the Shale Gas Horizontal Well

Ye¹,

Tang²,

Cai³

et al. 2022

Mathematical Problems in Engineering

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Shale gas wells in the Changning block of Weiyuan, Sichuan, China, experience water production problems throughout their life cycles. In actual field production, plunger lift is typically used to discharge liquid from a shale gas well. However, it is difficult to test the formation inflow performance relationship curve (IPR) of a plunger lift well. Hence, data on the formulation and optimization of plunger lift well systems are lacking. Based on actual measured data related to casing pressure changes at the wellhead and the gas-liquid distribution characteristics in a wellbore during the shut-in phase, this paper establishes a method for calculating the formation IPR curve of a shale gas plunger lift well by calculating changes in wellbore gas volume continuously. This method has a fast calculation speed. The gas-water interface distribution can be obtained in 3–5 iterations, and the inflow dynamic curve can be calculated in less than 5 seconds. This method tested the IPR curves of gas wells in the Changning block. The IPR curves of plunger lift wells showed concave characteristics contrary to the conventional upward convex curves. This is because the bottom hole flowing pressure changes caused variations in the water saturation of the near-wellbore zone. Consequently, the productivity equation of the plunger lift well is established by introducing the variation coefficient of water saturation expressed by bottom hole flow pressure. This equation fits with the measured IPR curve with an average R2 of approximately 0.9989.

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Mechanistic Design of Conventional Plunger-Lift Installation

Cited by 22 publications

References 3 publications

A Dynamic Plunger Lift Model for Shale Gas Wells

A Dynamic Plunger Lift Model for Shale Gas Wells

Shut-in based production optimization of shale-gas systems

Research on the Inflow Performance of the Plunger Lift in the Shale Gas Horizontal Well

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