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2024 Conference

Agenda

 

Day(s)

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Hour(s)

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Minute(s)

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Second(s)

Conference Schedule

Pipeline Simulation Short Course

Monday

May

6

Introductions

7:30 a.m.- 8:00 a.m.

PSSC I – Fluid Properties

8:00 a.m. – 10:30 a.m.

Jon Barley (Emerson)

PSSC II – Pipeline Flow Equations

10:30 a.m. – 11:45 a.m.

Jason Modisette (Atmos International)

Lunch

11:45 a.m. – 12:45 p.m.

PSSC II – Pipeline Flow Equations

12:45 p.m. – 14:00 p.m.

Jason Modisette (Atmos International)

PSSC III – Multiphase Flow in Pipelines

14:00 p.m. – 16:30 p.m.

Ivor Ellul (CiSK Ventures)

Tuesday

May

7

PSSC IV – Real Time Systems & Leak Detection

8:00 a.m. – 10:30 a.m.
 

Ed Nicholas (Nicholas Simulation Services)

PSSC V – Pipeline Operations & Planning

10:30 a.m. – 11:45 a.m.

Jonathan Fasullo (Kinder Morgan)

Melissa Debevc (Enbridge)

Lunch

11:45 a.m. – 12:45 pm

PSSC V – Pipeline Operations & Planning

12:45 p.m. – 14:00 p.m.

Jonathan Fasullo (Kinder Morgan)

Melissa Debevc (Enbridge)

PSSC VI – Compressor Station Modeling

14:00 p.m. – 16:30 p.m.

Cody Allen (Solar Turbines)

Ice Breaker & Registration Opens

18:00 p.m. – 19:30 p.m.

Wednesday

May

8

8:00 – 8:40

PSIG 2401 – A Computational Fluid Dynamics Prediction of Pipeline Capacity Enhancement from the Synergetic Use of a Drag Reducing Agent and Pipeline Internal Coating

Mavis Sika Okyere, Lucas Nana Wiredu Damoah, Emmanuel Nyankson, David Sasu Konadu (Department of Material Science and Engineering, University of Ghana)

Blending fossil fuels such as natural gas (methane) with alternative fuels like ammonia or hydrogen (drag-reducing agent) is a significant step towards decreasing carbon emissions. A computational fluid dynamic model is developed to estimate pipeline capacity increase from the transmission of either a 70/30 (vol%) methane-ammonia blend or a 70/30 (vol%) methane-hydrogen blend through a straight pipeline internally coated with epoxy resin. Synergistically, a pipeline capacity increase of 100.94% was observed for methane-ammonia blend transmission whereas methane-hydrogen blend transmission resulted in a pipeline capacity increase of 76.67%. The CFD simulation results compare well with theoretical or analytical solutions.
8:40 – 9:20

PSIG 2402 – A Hydraulic Simulation Methodology for the Thermal Management of Oil Pipelines

Sina Jomeh, Seema Dhanda (Enbridge)

This paper discusses how standard hydraulic modeling software is used to simulate the thermal hydraulics of a liquid pipeline. The approach used for thermal modelling and all the inputs and assumptions made during the modelling process are explained and applied to an Enbridge pipeline system. A tuning procedure is introduced, and the key contributors to developing an accurate thermal model are reviewed. The paper will discuss the methodology, the limitations of the approach and recommendations on how to improve the modeling accuracy.
9:20 – 10:00

PSIG 2403 – Estimating Maximum Transient Forces in a Liquid Piping System

Guohua Li, Deepthi Chandromouli (DNV)

This paper estimates the axial forces in liquid piping systems during transients. Based on transient simulation results for three typical liquid piping systems, the paper demonstrates that the worst force case could be different from the worst overpressure case, both upsurge and down-surge are equally important in estimating the maximum forces, and the magnitude of forces could vary significantly from pipe to pipe.

10:00 – 10:15

Break
10:15 – 10:55

PSIG 2404 – Study of Multiproduct Transport in Large Size Hilly Terrain Pipeline

Alessandro Terenzi1, Enrico Bonato1, Antonino Ingoglia2, Lucia Francesca Innocenti 2 (1. Saipem S.p.A, 2. Eni S.p.A.)

This paper reports on a study of predicted interface mixing volumes for an existing hilly terrain large size multi-product pipeline, previously operated for crude oil transmission. Pipeline flow modelling has been developed with and without separation pigs. Field measurements of contamination volumes collected during operation with multiple sealing discs separation pigs confirm the model predictions, supporting the envisaged operational strategy for this transport system.
10:55 – 11:35

PSIG 2405 – Running Surge Studies for Batched Pipelines

Howard Xiang, Dennis Arensman (Enterprise Products)

This paper investigates various approaches for evaluating surges on batched systems. The presentation expands on the workflow, limitations, and results from each method. Furthermore, a pipeline example shows how each method affects the surge results.

11:35 – 12:00

Break
12:00 – 13:30

Lunch
13:30 – 14:10

PSIG 2406 – Offline Calculation of Liquid Properties in Light Hydrocarbon Pipeline Using EOS Equations

Galen Stanley, Alexander Chamorro (Aveva)

Equations of state do an excellent job on accurately calculating fluid properties but with a tremendous computational time impact. This presents a challenge for online modeling, where one second of model time must be computed in under one second – with no exceptions. This paper will explore using high-fidelity EOS offline to produce tables for the properties based on temperature and pressure. The online model could then use those tables to accurately calculate the properties, but in a fraction of the time. This technique has its limitations and is not suitable for all cases, but for most oil pipelines/products, this technique can have a significant impact on lowering computational time with minimal impact on fidelity.
14:10 – 15:00

PSIG 2407 – Process for Pipline Stand-Up Pressure Test: A Reliable Method for Integrity Verification

Noorallah Rostamy, Prabhas Bhat, Vladimir Grinfelds, Jon D Van Reet, Randy L Rhoades (Plains Pipeline)

This paper shows the process of conducting stand-up pressure tests as a reliable technique to verify the pipeline integrity. The test process including preparation, monitoring, data analyzing, documentation, etc. is discussed here. Also, the methodology of calculating the expected cooling rate from a shut-in pipeline using an in-house tool is discussed.
15:00 – 15:15

Break
15:15 – 15:55

PSIG 2408 – Dynamic Programming Applied to DRA Optimization and Power Contract Optimization

Jason Modisette (Atmos International)

Dynamic programming (DP) has a fifty-year history of optimizing pipeline operations. With the increasing power of modern computers it’s now possible to use this technique on even more aspects of liquid pipeline performance. This paper builds on the widespread use of DP to determine pump lineups, pressure setpoints, and flow rates, and expands the problem to optimizing for complex power contracts including demand terms, as well as introducing nearly-exact DRA optimization.

 
15:55 – 16:35

PSIG 2409 – Leak Detection for Type A Liquid Hydrocarbon Gathering Lines (Short Lines)

Michael Roxas 1, James Yezik 2, Stephen Guenther 2, Satya Mokamati 1 (1. Vanmok Leak Detection Technologies Inc., 2. Buckeye Partners L.P.)

PHMSA’s Oct 5, 2022 rule mandates rapid leak notification (15 min) and response (30 min) for “Type A” gathering pipelines with diameters ≥6 inches. This paper explores compliance challenges, infrastructure issues, proposing a pressure-based leak detection system using unsupervised machine learning for timely alerts, backed by experimental data and continuous learning for enhanced reliability.
8:00 – 8:40

PSIG 2410 – A Novel Transfer Function Approximation Using Pade Approximants For Gas Pipeline Transient Simulation

Cody Allen1, Mauricio de Oliveira2, Roman Zamotorin1, Matt Lubomirsky1 (1. Solar Turbines, 2. University of California, San Diego)

The paper begins with an overview of the transfer function approach starting in the late 1970’s through today. The paper then discusses a new approximation technique and why it tends to yield better results than the previous technique that has been used for so many years. A discussion of the results and increased accuracy ensues. The paper ends with conclusions about when the new approximation technique should be superior to the previous technique.
8:40 – 9:20

PSIG 2411 – Minimizing Ukraine Gas Network Operational Losses in Peace and War Times Using Simulation Software

Mariia Nedaikhlib, Martin Stýblo, Marko Haulis (SIMONE Research Group)

The article will describe the basics for optimization of gas networks in Ukraine (production-technological costs according to the legal framework, calculation of consumption, main aspects of optimization). The experience gained in the calculation of the network in peacetime, the project in the critical conditions of the war period, as well as an example of calculation of losses in case of pipe element damage will be presented. In addition, story of a textbook formula error and the equations for flow/amount of leaked gas will be discussed.
9:20 – 10:00

PSIG 2412 – Enhancing Pipeline Controller Training Through Hydraulic Simulation – Insights From Boardwalk Pipeline

Fred Miller, Josh Ferguson, Kevin Reyes (Boardwalk Pipeline)

This presentation shares our effort with integrating hydraulic simulation with conventional pipeline controller training. We describe the reasons for our approach, the obstacles we faced, and the solutions that have led to our program’s success.
10:00 – 10:15

Break
10:15 – 10:55

PSIG 2413 – Pipeline Throughout Prediction in Quality and Quantity Uncertainty Scenarios

Christian Nelson Reyes Pabon (CENIT Logistica y transporte de hidrocarburos)

This paper discusses throughput prediction in uncertainty scenarios (quality and quantity) by using a novel similarity measure that represents the line fill of a pipe as an ordered set depicted as a vectorial path. This approach identifies days with similar initial line fill and by fetching and by processing throughput of similar days, gives an estimated throughput for the analyzed day.
10:55 – 11:35

PSIG 2414 – Capabilities and Advantages of the GasModels Package

Shriram Srinivasan, Kaarthik Sundar, Sai Krishna Kanth Hari, Anatoly Zlotnik, Anup Pandey, Mary Ewers, David Fobes, Adam Mate, Russell Bent (Los Alamos National Laboratory)

We demonstrate a software package for modeling and analysis of the nation’s energy pipeline systems. It provides energy system planners, operators, and federal agency partners modeling and optimization capabilities to predict the consequences and evaluate mitigations and responses to natural hazards and malicious attacks. The software allows both both steady-state and transient use cases and incorporates several popular optimization formulations for problems of this class.
11:35 – 12:00

Break
12:00 – 13:30

Lunch
13:30 – 14:10

PSIG 2415 – How To Use Pipeline Models To Manage Nominations and System Balancing

Juan Manuel Gonzalez Navarro, Jose Garcia Gilberto de la Paz (Sempra Infraestructura)

This paper discusses the general guidelines program to integrate contract, operational and supply/demand information, and to build thorough hydraulic modeling that allows a natural gas transportation service provider to identify required supply, guarantee delivery pressure conditions, maximize capacity usage, and minimize capacity constraints.
14:10 – 15:00

PSIG 2416 – Building an Accurate Simulation Model for a Complex Gas Pipeline Network

Ying Liu1, Yuanyuan Tian1, Zhixiang Dai1, Qin Bie1, Guangtao Yang2, Jay Zhang2 (1. PetroChina Southwest Oil & Gasfield Company, 2. Emerson)

This paper presents a systematic way of dealing with challenges in a large topologically complex gas network. This approach enables us to build an accurate simulation model for a 6000 km (3728 mi) gas pipeline network, which has over 70 ingress points with different intake pressures and over 400 egress points for different gas delivery requirements, in a short period of time. The model is validated over several actual operational scenarios. This validation includes both steady and transient scenarios. The proposed framework shows its virtue in resilience in dealing with various operations and provides pipeline management precise information needed for daily operation, scheduling, and future expansions.
15:00 – 15:15

Break
15:15 – 15:55

PSIG 2417 – Automatic Tuning of Temperature and Pressure coefficients on Pipeline Simulations

Vadim Shapiro, John Hooker, Ilya Markevich (Statistics & Control)

This paper addresses the formidable challenge of accurately simulating pipeline systems in the context of erratic temperature fluctuations. Focusing on the precision required for thermal modeling, a case study in a Montana town reveals a remarkable 103-degree Fahrenheit swing within 24 hours. Even minor shifts can disrupt the entire system, leading to inaccurate simulations. In response, the paper introduces an innovative solution: real-time automatic tuning of model coefficients. This approach ensures continuous model accuracy, adapting dynamically to diverse environmental conditions and eliminating the need for multiple, finely-tuned models.

Thursday

May

9

8:00 – 8:40

PSIG 2418 – Panel Discussion: What role does simulation have in addressing current trends in pipeline transportation?
8:40- 9:20

PSIG 2419 – Computational Heating Value Tracking for Biomethane Injection

Martin Stýblo, Vit Meistr, Luděk Reinštein (SIMONE Research Group)

Theoretical background, field tests and verification process will be presented for two gas computational calorific value tracking projects: high-pressure national scale distribution system and capital city high-, mid- and low-pressure distribution system with biomethane injection into mid-pressure part of the network.
9:20 – 10:00

PSIG 2420 – Equations of State Validation for Hydrogen Pipeline Operation

Richard Merrett, Zhiqiu Pan (Siemens)

This research specifically looks to validate the performance of the GERG-2008, AGA8 and the NIST extended models using hydrogen pipelines and blended operation. In addition it considers the practical limitations and pitfalls of other Equations of State (EoS) and the relative errors that can occur in extreme scenarios.
10:00 – 10:15

Break
10:15 – 10:55

PSIG 2421 – The Dynamic Modeling of Multiphase Flow – How Is It Really Done?

Geir Saether1, Zachary Houston1, Ivor Ellul2 (1. Petroflow, 2. CiSK Ventures)

This presentation will take the audience through a rigorous sequence of how to model dynamic multiphase pipelines from the start to finish. This will include such aspects as the correct data to be gathered, how the data should be prepared, the understanding and pre-analysis of fluid composition, the appreciation of pipeline topography and how it will affect the flow physics, the choice of simulation scenarios, and ultimately the way results are interpreted so appropriate decisions can be made.
10:55 – 11:35

PSIG 2422 – Performances of Centrifugal Compressors on CO2 at High Machine Mach Numbers

Rainer Kurz, Matt Lubomirsky, Roman Zamotorin, Avneet Singh, Anand Srinivasan (Solar Turbines)

In this paper, the aerodynamic performance aspects of centrifugal compressors on CO2 at high machine Mach numbers will be presented. In addition, the influence of the stonewall condition on the axial movement of the rotor will be presented, along with applications for high molecular weight gas compressors.
11:35 – 12:00

Break
12:00 – 13:30

Lunch
13:30 – 14:00

Chairman’s Session
14:00 – 14:15

Scholarship Award Presentation
14:15 – 14:45

Vendor Introductions
14:45 – 15:00

Break
15:00 – 15:40

PSIG 2423 – A Study on Leak Detection in Blended Hydrogen Transportation Through Pipelines

Victoria Parra Trujillo, Hamidreza Karami (The University of Oklahoma)

This study surveys the state of the literature on leak detection simulation, focusing on blended hydrogen transportation pipelines. Transient flow simulations are conducted, examining the relationships between the leaks and mass flow rate changes with time. Also, the changes in pressure and temperature and their impacts on fluid properties will be discussed in the presence of leaks.
15:40 – 16:20

PSIG 2424 – Design of Pigging Operations to Lower Overall Pipeline Transportation Related Costs

Ben Ahiabor (Northwind Midstream), Kamilia Putri, Chun Ka Kwok, Aaron Nazrini (SLB)

By simulating the behavior of the pipeline and pigging operations in the multiphase transient simulator under different operating conditions and schedules, our process can help operators predict and prevent potential operational issues, which can improve safety and minimize costly production interruptions. Leveraging this methodology to determine the proper frequency and design of pigging related operations can increase the time between regular maintenance, improve pipeline integrity, and increase the longevity of the pipelines.
16:20 – 17:00

PSIG 2425 – Pipeline Design Options to Transport Hydrogen Produced from Intermittent Renewable Power Supply

Guohua Li, Hamid Bidmus, Randy Dinata (DNV)

Designing a pipeline to deliver stable and large-scale hydrogen from renewable sources is a challenge. Two pipeline design options are proposed to resolve the challenge, an over-sized pipeline for both storage and transmission and a dedicated (smaller-sized) transmission pipeline paired with an on-site hydrogen storage facility. Hydraulic transient models are utilized to demonstrate the feasibility of each pipeline design option based on the hydrogen production profile from wind power source as an example. The feasible and/or infeasible operations in each design option are analyzed for their advantages, applicability, and limitations.
18:00 – 19:30

Reception

Friday

May

10

8:00 – 8:40

PSIG 2426 – Optimizing Pipeline Systems for Greater Precision, Efficiency & Safety Using Emerging Technologies

Paul Dickerson, Jennifer Worthen (Emerson)

Using real-time modeling, advanced scheduling tools, and sophisticated optimization techniques, an automated, software-driven pipeline management system is capable of fully running a pipeline’s operation with appropriate human supervision to maintain operations within an envelope, track batches, pigs, and tools, and improve operational reliability. In this paper we present some of the emerging solutions in this space and discuss the potential benefits and pitfalls.
8:40 – 9:20

PSIG 2427 – Unearthing Classic Field Tests to Benchmark Multiphase Flow Models

Mack Shippen (SLB)

This paper examines eight previously published datasets comprising pressure and holdup measurements for multiphase pipelines in operation. A variety of multiphase flow models, including the latest state-of-the-art, are evaluated against the datasets to assess confidence of predictions.
9:20 – 10:00

PSIG 2428 – Simulating Carbon Dioxide Pipelines: Addressing Challenges and Modelling Approaches

Gary Hanmer (Atmos International)

This paper discusses the simulation of CO2 pipelines and the modelling challenges presented by the distinctive fluid properties. Covering the specialized pumping systems used in CO2 transportation and the special characteristics of leaks in CO2 pipelines compared to traditional gas and liquid pipelines. The paper finally explores the accuracies of different equations of state for modelling CO2 on an operational case study pipeline.
10:00 – 10:15

Break
10:15 – 10:55

PSIG 2429 – Advancing GHG Emissions Analysis: A Comprehensive Application for Streamlined Optimization Within Oil and Gas Operations

Ali Nassereddine1, Haidan Lu2, Chunka Kwok2,  Aaron Nazrini2 (1. Colorado School of Mines, 2. SLB)

This paper presents a novel GHG emissions analysis tool for the oil and gas industry, featuring a web-based application powered by a multiphase flow simulator. It demonstrates notable emissions reductions through case studies on DRA injection and gas lift optimization, indicating a potential 10-23% decrease in emissions. The tool’s effectiveness in promoting sustainable practices within the industry is highlighted, underscoring its role in the sector’s transition towards sustainable energy and combating climate change.
10:55 – 11:35

PSIG 2430 – Real-Time Transient Modeling of CO2 Pipelines and Phase Behavior During the Leak

Hamed Ghasvari Jahromi, Fatemeh Ekram, Satya Mokamati (Vanmok Leak Detection Technologies Inc.)

A clear understanding of the flow characteristics of CO2 pipelines under various operating conditions, including leaks, provides valuable insights for effective monitoring and design of reliable leak detection systems. In this paper we discuss a novel mathematical model of a CO2 pipeline and conduct simulations to replicate the complex phenomenon of CO2 release. The approach and findings of this paper contribute to enhancing leak detection in pipelines, thus mitigating emissions of greenhouse gases.
11:35

Conference Close