Gas Field Deliverability Forecasting: A Coupled Reservoir Simulator And Surface Facilities Model

Trick, Mona D.; Agarwal, Rajeev; Ammer, J.R.; Mercer, J.C.; Harris, Ramon P.

doi:10.2118/94-62

Cited by 6 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…A general overview of the relationship between the number ratio of gas and water molecules and the diameters of micro pores is shown in Figure 2. From Figure 2, the observed result would be substituted in equation (12), to find the number of gaseous molecules, when diameter of micro pore and number of water molecules are known.…”

Section: Relationship Between Methane and Water In Various Matrix Poresmentioning

confidence: 99%

“…From the Figure (2), it can be said that when the diameter of pore is taken at 50 nm, then the measured number of gas molecule is counted about 1/50 of the number of water molecule. Within the small matrix pore, the methane gas must be congealed more to form gaseous bubbles [12,13]. Though, the small amount of expansion force is not adequate to be generated within the small pores, yet the bubbles are tried to force them for filtrating within the pores.…”

Section: Production Of Gas From Small Matrix Poresmentioning

confidence: 99%

See 1 more Smart Citation

A smart review on the gas transportation model of coalbed methane gas based on the optimized pipeline network

Talapatra

Chowdhury

Ujjaman

2019

Journal of Mechanical and Energy Engineering

View full text Add to dashboard Cite

Coalbed methane is extracted from the adsorbed state in coal seams with lower pressure and production rate. In previous studies, researchers only focused on the methods that were developed for making a relationship between the underground production rate and surface flow rate without any type of optimization procedure. In this study, the main purpose is to do a review on finding out of surface layout plan to optimize the maximum gas flow rate by developing an improved pipeline network. The more the optimization of the layout plan for designing pipeline network, the lower the amount of investment need to provide. Here, a mathematical model is proposed for the gas transportation based on the hydraulic and thermodynamic calculations of the pipeline network. Not only that, but also the filtration mechanism of depressurization and desorption for the gas flow through pipe section are evaluated here. After that, the pressure drop and pipeline efficiency are explored to find out the best design of pipeline network from the observed results. Finally, based on this study, many uncertainties can be reduced associated with the installation of pipeline network for gas transportation.

show abstract

Section: Relationship Between Methane and Water In Various Matrix Poresmentioning

confidence: 99%

Section: Production Of Gas From Small Matrix Poresmentioning

confidence: 99%

A smart review on the gas transportation model of coalbed methane gas based on the optimized pipeline network

Talapatra

Chowdhury

Ujjaman

2019

Journal of Mechanical and Energy Engineering

View full text Add to dashboard Cite

show abstract

“…Several studies have proposed various methods that can be used to calculate BHFP. [9][10][11][12][13][14][15][16] Single-phase flow model. Cullender and Smith 21 proposed the Cullender-Smith method, which is used to derive the calculation equation for pure gas well bottomhole pressure through an analysis of the energy equation for gas steady flow.…”

Section: Wellbore Modelmentioning

confidence: 99%

Optimization design of coalbed methane pipeline network–coupled wellbore/reservoir simulation

Zhou

Liang

Deng

et al. 2017

Advances in Mechanical Engineering

View full text Add to dashboard Cite

The extraction of coalbed methane, unlike that of conventional gas resources, is characterized by low gas production and low pressure. The traditional optimization methods only focus on the surface system, ignoring the relationship between the surface system and coalbed methane production. Furthermore, the pipeline network suggested by these methods is based on the given productivity of a single well. This article proposes a surface system layout optimization architecture coupled with a production system simulation that considers the profit made in the production cycle as the objective function. Using case studies, we show that the proposed optimization method improves the gas production rate by about 10.9% and increases the profit by 2 million dollars. When the results are analyzed under different network topologies, the tree network emerges as the cheapest and the star network emerges as the most expensive in terms of ground investment. However, when considering productivity and profit, the star network is the best and the tree network is the worst, while the concatenated network is intermediate. The results show that the structure of the surface network has a considerable influence on the coalbed methane reservoirs. Therefore, this article recommends the star structure arrangement for the coalbed methane surface system.

show abstract

“…Dempsey et al [2] first studied the coupling of gas reservoir flow simulation and surface system simulation, which built the foundation of other relative research on the production system integration. Startzman et al [3], Trick et al [4], Litvak and Darlow [5], Coats et al [6], Al-Mutairi et al [7], and Guyaguler et al [8] also put forward their models of the reservoir/wellbore/surface system integration afterwards. Startzman et al [3] proposed a model of reservoirto-surface system coupled simulation, but this model only applied to the development of large offshore oil fields and the scope of application was narrow.…”

Section: Introductionmentioning

confidence: 99%

“…Startzman et al [3] proposed a model of reservoirto-surface system coupled simulation, but this model only applied to the development of large offshore oil fields and the scope of application was narrow. Trick et al [4] combined the black oil reservoir simulation software IMEX and the ground system simulation software FORGAS for forecasting the production of gas field. The coupling process of these two models is applicable to the coupling of any reservoir simulator with the ground system model which includes bottom-hole inflow dynamic curve and bottom-hole pressure loss calculation module.…”

Section: Introductionmentioning

confidence: 99%

Coalbed Methane Production System Simulation and Deliverability Forecasting: Coupled Surface Network/Wellbore/Reservoir Calculation

Zhou

Liang

Deng

et al. 2017

International Journal of Chemical Engineering

View full text Add to dashboard Cite

As an unconventional energy, coalbed methane (CBM) mainly exists in coal bed with adsorption, whose productivity is different from conventional gas reservoir. This paper explains the wellbore pressure drop, surface pipeline network simulation, and reservoir calculation model of CBM. A coupled surface/wellbore/reservoir calculation architecture was presented, to coordinate the gas production in each calculation period until the balance of surface/wellbore/reservoir. This coupled calculation method was applied to a CBM field for predicting production. The daily gas production increased year by year at the first time and then decreased gradually after several years, while the daily water production was reduced all the time with the successive decline of the formation pressure. The production of gas and water in each well is almost the same when the structure is a star. When system structure is a dendritic surface system, the daily gas production ranked highest at the well which is the nearest to the surface system collection point and lowest at the well which is the farthest to the surface system collection point. This coupled calculation method could be used to predict the water production, gas production, and formation pressure of a CBM field during a period of time.

show abstract

Gas Field Deliverability Forecasting: A Coupled Reservoir Simulator And Surface Facilities Model

Abstract: This report was prepared as an account of work sponsored by an agency of the United States Government.

Cited by 6 publications

References 0 publications

A smart review on the gas transportation model of coalbed methane gas based on the optimized pipeline network

A smart review on the gas transportation model of coalbed methane gas based on the optimized pipeline network

Optimization design of coalbed methane pipeline network–coupled wellbore/reservoir simulation

Coalbed Methane Production System Simulation and Deliverability Forecasting: Coupled Surface Network/Wellbore/Reservoir Calculation

Contact Info

Product

Resources

About