SPE International Oilfield Scale Conference and Exhibition 20 - 21 Jun 2018 Aberdeen Exhibition and Conference Centre (AECC) Aberdeen, Scotland, UK


Monday, June 18

09:00 - 17:00
Understanding Inorganic Scaling - Mechanisms, Control and Management
Ticketed Event 2-day Session
Instructor(s) Gordon M. Graham

This two-day training course is an introduction to inorganic scaling. It includes an overview of the different types of inorganic oilfield scales encountered during production, and the various methods used to control them. Field examples will illustrate the importance of an effective scale management strategy.

Wednesday, June 20

08:30 - 09:00
01K  Keynote Session 1
Predicting the formation of pH-dependant scales such as carbonates and sulphides requires a full study of all hydrocarbon and aqueous phases present to determine the distribution and speciation of CO2 and H2S in the system. Several commercially available software packages combine PVT calculations with scale predictions but packages more targeted to aqueous systems have limited hydrocarbon capabilities. Likewise, PVT modelling software focusing on the hydrocarbon phase does not always fully model the aqueous phase or can only predict a limited number of scales/complexes. Moreover, within each software a large number of different Equations of State (EOS), activity models, parameters etc. which ultimately impact the final carbonate and sulphide scale prediction profile can be selected by the user. The results to be presented will show that despite the large number of modelling options available, there are two parameters that play a key role in pH-dependant scale predictions: partition coefficients of CO2 and H2S between gas, oil and water and the relative mole (and volume) distribution between each phase at selected temperature and pressure. The final scale prediction results can be accurate only when these values are accurate, irrespective of how they are obtained.
Time Paper # Presentation
0830-0900 190726 Rigorous Carbonate and Sulphide Scale Predictions: What Really Matters? G. Verri Ness, K.S. Sorbie, Heriot-Watt University
09:00 - 10:30
01T  Sulphide Scale Formation and Control
Session Chairpersons Caroline Simpson - Scaled Solutions Limited, Helen Williams - Nalco Champion, An Ecolab Company
Sulphide scales are an ever increasing challenge in the oil and gas production, with some more challenging than others to mitigate with chemicals. In addition, removal of sulphide scales can be extremely difficult, and as such there is a real need for industry focus for new understanding and technologies in this area. It is recognised that there is a knowledge gap in comparison to the more conventional scales, in the understanding of the scale formation, deposition and mitigation aspects. This session explores advancements made in the understanding of sulphide scale precipitation, deposition and mitigation, as well as chemical development methods, and the effect of testing in multiphase conditions and the potential of surface coatings in combating adhesion of scale.
Time Paper # Presentation
0900-0930 190731 Insights Into the Mechanism of Lead Sulfide (pbs) Fouling and The Influence of Light Distillate Fraction T.V. Charpentier, A. Neville, University of Leeds; V. Eroini, Statoil; J.H. Olsen, StatoilHydro; F. Moeller Nielsen, Statoil Norway; S. Baraka-Lokmane, Total E&P; E. Bourdelet, Total E&P Algerie; J. Ellingsen, O. Bache, ConocoPhillips Norge; W.A. Keogh, University of Leeds
0930-1000 190709 New Generation Squeezable Sulfide Inhibitor Successfully Averts Challenging Sulfide Scale Deposition in Permian Basin and Williston Basin C. Okocha, Clariant Oilfield Services; A. Kaiser, S. Underwood, J.J. Wylde, Clariant Oil Services
1000-1030 190743 Iron Sulphide Inhibition and Interaction with Zinc and Lead Sulphide B.G. Al-harbi, A.J. Graham, K.S. Sorbie, Heriot-Watt University
Alternate 190711 A New Approach to Modelling Carbonate and Sulphide Scale Precipitation Profiles in Auto-Scaling Processes D. Silva, K.S. Sorbie, G. Verri Ness, E.J. Mackay, Heriot-Watt University
Alternate 190755 Development of Novel FeS Scale Control Chemicals W. Li, G. Ruan, X. Wang, Y. Liu, Rice University; N. Bhandari, Rice University Executive Education; H.M. Sriyarathne, K. Harouaka, A. Lu, G. Deng, Y. Zhao, A.T. Kan, M.B. Tomson, Rice University
09:00 - 17:00
09P  Knowledge Sharing Poster Session
2-day Session
Session Chairpersons Hamad Amer Alsaiari - Saudi Aramco, Stuart Brice - Maersk Oil North Sea UK Ltd, Haiping Lu - Baker Hughes, Gillian Ross - Chrysaor, Jonathan James Wylde - Clariant Oil Services
In addition to the papers which are presented at the conference, a number of additional papers are available and will be presented in poster format. These technical poster cover a wide range of topics and represent multiple demographic areas. Poster presenters will be available for questions and discussion at their designated session, spread over the coffee breaks. We hope you enjoy this additional opportunity for learning.
Time Paper # Presentation
190730 Scale Risk Assessment and Novel Coating for Smart Completion: Scale Simulation and CFD Modelling Approach H. Guan, OneSubsea LLC; R. Bouamra, Schlumberger; T. Lindvig, University of Tulsa; J. Vernus, Schlumberger
190721 Effect of Magnesium and Ferrous Ions on CaCO3 Scaling in MEG Regeneration Pre-treatment X. Ma, M. Neteland, M. Broby, Norwegian University of Science & Technology; M.E. Seiersten, Institute for Energy Technology; J. Andreassen, Norwegian University of Science & Technology
190748 Mechanisms and Mitigation Strategies of Iron Sulfide Deposition in Sour Gas Wells T. Chen, Q. Wang, Saudi Aramco; F.F. Chang, Saudi Aramco PE&D; A.E. Mukhliss, Saudi Aramco SAOO; G.A. Al-Muntasheri, Saudi Aramco PE&D EXPEC ARC
190742 Optimization of Scale Treatment Program for Offshore Field Operations With Presence of Iron D.J. Lee, P. Srivastava, P. Stead, J.L. Brooks, Baker Hughes, a GE company
190697 Study of Halite Scale Formation and Inhibition by Novel Static Bottle and Dynamic Loop Testing Methods G. Ruan, A.T. Kan, W. Li, K. Harouaka, H.M. Sriyarathne, A. Lu, G. Deng, X. Wang, Y. Zhao, M.B. Tomson, Rice University
190720 Unconventional Horizontal Scale Squeezes: Lessons Learned Drive Continued Development and Improved Cost Savings L.M. Holding Eagle, K. Spicka, J. Fidoe, I.J. Littlehales, B. Wibel, M.M. Jordan, Nalco Champion, An Ecolab Company
190702 Development of an UV-Vis Spectrophotometric Method for Accurate Determination of Aqueous Sulphides in Exotic Scale Studies Y. Alduailej, L.S. Boak, A.J. Graham, B. Alharbi, K.S. Sorbie, Heriot-Watt University; H. Oduro, M. Alkhaldi, S. Al-Qathami, Saudi Aramco
190718 A Novel Approach to Scale Prediction Modelling of Carbon Dioxide Flooded Fields B. Wibel, J. Fidoe, H. Goodman, J. Gibson, Nalco Champion, An Ecolab Company
190723 A Novel Evaluation of Scale Inhibitor Performance Against Calcium Sulfate Scaling in the Presence of Iron Sulfide Solids J. Russek, N. Flores, Baker Hughes, a GE company
190745 Scaling Potential and Monitoring for the First CO2-EOR Demonstration Project in Saudi Arabia A.A. Alhashboul, Saudi Aramco; M.L. Sanni, Saudi Aramco PE&D; I.M. Zefzafy, Saudi Aramco SAOO; Q. Wang, Saudi Aramco; S.L. Kokal, Saudi Aramco PE&D EXPEC ARC
190747 The Importance of Diffusion Controlled Chemical Retention in Fractured Carbonates: A Case Study Utilising Core Flood Testing and Field Computer Modelling S. Ewing, Scaled Solutions Limited
190708 Scale Challenges Associated with Chemical EOR G.M. Graham, Scaled Solutions Limited; D. Frigo, Scaled Solutions Ltd.
190700 The Effect of Surface Material on the Mechanics of Calcium Carbonate Scale Deposition K. Harouaka, A. Lu, G. Ruan, H.M. Sriyarathne, W. Li, Rice University; G. Deng, Rice Univeristy; Y. Zhao, X. Wang, A.T. Kan, M.B. Tomson, Rice University
09:00 - 17:00
10P  Regional Knowledge Sharing Poster Session
2-day Session
Session Chairpersons Hamad Amer Alsaiari - Saudi Aramco, Stuart Brice - Maersk Oil North Sea UK Ltd, Haiping Lu - Baker Hughes, Gillian Ross - Chrysaor, Jonathan James Wylde - Clariant Oil Services
In addition to the papers which are presented at the conference, a number of additional papers are available and will be presented in poster format. These technical poster cover a wide range of topics and represent multiple demographic areas. Poster presenters will be available for questions and discussion at their designated session, spread over the coffee breaks. We hope you enjoy this additional opportunity for learning.
Time Paper # Presentation
190749 Application of Electroless Nickel Coating as a Scaling Resistant Alloy in Thermal Production D. Zhu, RGL Reservoir Management Inc; L. Gong, X. Qiu, W. Hu, J. Huang, L. Zhang, University of Alberta; V. Fattahpour, M. Mahmoudi, RGL Reservoir Management Inc; J. Luo, H. Zeng, University of Alberta
190703 Study of Carbonatic Scale in Completion Tools Through Modeling and Simulation Techniques A.L. Martins, Petrobras; F.R. Pereira, Universidade Federal Do Espirito Santo; S. Freire Rigatto, R.S. Maciel, D. Ribeiro, O. romero, UFES; M. Bloch, M.V. Ferreira, Petrobras
190725 A Novel Solution to Remove Carbonate and Sulphate Scales in Electric Submersible Pumps; Offshore Oil Wells in the Gulf of Mexico E. Miquilena , Schlumberger; G. Garcia Olvera, PEMEX
190729 Evaluation of Formation Damage due to Sulfur Scale Formation in the Iranian Sour Gas Reservoir J. Moghadasi , Petroleum University of Technology Iran
190710 Scale Analyze and Mitigation of Jiyuan Oilfield Q. Li, PetroChina Changqing Oilfield Co; Z. Zhou, A. Liu, Y.H. Ying, L. Yang, National Engineering Laboratory for Exploration and Development of Low Permeability Oil and Gas Fiel
10:30 - 11:00
11:00 - 12:30
02T  New Inhibitor Test Methods and Molecules
Session Chairpersons Stephanie Edmunds - Solvay UK Ltd, Eric James Mackay - Heriot-Watt University
This session recognises the ongoing scale inhibition challenges faced by production chemists and a desire to investigate new solutions to existing scale problems. Papers presented relate to a new test method and its applicability to specific field applications, performance of a new molecule to prevent calcium carbonate/sulphate scale whilst meeting environmental compliance (OECD306) and the evaluation, including field trial, of iron tolerance for a scale inhibitor used in conventional production and also fracturing completions.
Time Paper # Presentation
1100-1130 190741 New Test Method for Scale Inhibitor Qualification Verified by Feld Testing A.K. Halvorsen, Statoil ASA; K. Reiersolmoen, Statoil Norway; A. Brurås, K.S. Andersen, Statoil ASA; Ø. Birketveit, E. Rune, M.H. Du Plessis, Schlumberger
1130-1200 190733 Development of the First Readily Biodegradable (OECD306) Phosphonated Amino Acid Chemistry for the Control of Calcium Carbonate and Calcium Sulphate in HTHP & UHT Unconventional Productions R. Di Toto, Italmatch Chemicals; M.B. Tomson, A.T. Kan, Rice University; F. Bruyneel, D. Parravicini, Italmatch Chemicals; F. Yan, CETCO Energy Services
1200-1230 190728 Development and Field Application of an Iron Tolerant Scale Inhibitor for use in Fracturing Completions and Production H. Davies, M. Toole, R. Higgins, S. Margan, BWA Water Additives
Alternate 190712 Evaluating Evaporative Processes - Gas Lift Chemical Applications, Halites and Gunking S. Ewing, Scaled Solutions Limited
Alternate 190735 Evaluation of Fe(II)/Fe(III) Effect on Barite Scale Inhibitors Under Different Temperatures H.M. Sriyarathne, Z. Zhang, G. Ruan, K. Harouaka, W. Li, A. Lu, G. Deng, X. Wang, Y. Zhao, A.T. Kan, M.B. Tomson, Rice University
12:30 - 13:30
13:30 - 15:00
03T  Developments in Scale Predictions
Session Chairpersons Hua Guan - OneSubsea LLC, Marija Kilibarda - Aker BP
This session gives an insight into the recent developments within scale predictions. Scale predictions are important tools to more accurately evaluate the scaling risk, design scale inhibitor treatments, and predict fresh water breakthrough. It is an essential tool to handle scale issues in increasingly harsher environments, such as ultra-high temperature, pressure and complex ion conditions. Challenges associated with the impact of very high calcium concentrations on sulphate scale predictions at high temperature is one of the focuses of this session; in addition, there will be an interesting presentation regarding the kinetic effects into the thermodynamic modelling of CaCO3 scale.
Time Paper # Presentation
1330-1400 190737 Introduction of Kinetic Effects into the Thermodynamic Modelling of CaCO3 Scale Precipitation D. Silva, K.S. Sorbie, E.J. Mackay, Heriot-Watt University
1400-1430 190744 Impact of Very High Calcium Concentration on Sulfate Scale Prediction at High Temperature from 120oC to 230oC G. Deng, Rice University
1430-1500 190754 Recent Advances In Scale Prediction, The Approach And Limitations A.T. Kan, Rice University; Z. Dai, Apache Corporation; G. Ruan, G. Deng, Y. Lu, H. Sriyarathne, W. Li, K. Harouaka, Y. Zhao, X. Wang, M.B. Tomson, Rice University
Alternate 190696 A Novel View of Barium Sulfate Deposition in Stainless Steel Tubing A. Lu, A.T. Kan, M.B. Tomson, Rice University
15:00 - 15:30
15:30 - 17:00
04T  Produced Water Sample Handling and Analysis Methods
Session Chairpersons Stephen Mark Heath - Baker Hughes, a GE company, Eyvind Sørhaug - Repsol Exploration Norge AS
To prevent scale formation and deposition in oil fields reliably and cost efficiently, it is imperative to know the correct water chemistry throughout the production system and the level of protection provided by scale inhibitors used in scale inhibitor squeeze treatments. This session addresses these issues by presenting improved as well as new methods for analysing scale inhibitors returning from scale inhibitor treatments more accurately, a new methodology for determining formation water compositions contaminated with drilling mud filtrate and a review of sample preservation techniques.
Time Paper # Presentation
1530-1600 190727 Double Quantification of Scale Inhibitors using Time-Resolved Fluorescence (TRF) O. Vazquez, Heriot-Watt University; A. Marais, Glincs S.A.S.; k. McIver, l. Boak, Heriot Watt University; T. Lai, Glincs S.A.S.; M. Martini, University of Lyon; T. Brichart, Glincs S.A.S.; L. Sutherland, M. Blair, Nalco Champion
1600-1630 190734 The Procedures That Time Forgot: Sample Preservation, Back To Basics C.J. Johnston, M.M. Jordan, Nalco Champion, An Ecolab Company
1630-1700 190746 Correcting for Mud Filtrate Contamination of Formation Water Samples for Scale Management Planning: A Case Study From the Skarfjell Field, Norwegian North Sea R.A. McCartney, Oilfield Water Services Limited; S. Hatscher, Wintershall Holding GmbH; V.S. Droppert, Wintershall Noordzee B.V.
Alternate 190698 Phosphonate Speciation - Challenges and Solutions S. Ewing, Scaled Solutions Limited
Alternate 190719 Development and Improvement of A Novel IC-MS Technique for Phosphonate Scale Inhibitors L. Cheng, Nalco Champion, An Ecolab Company

Thursday, June 21

08:30 - 09:00
02K  Keynote Session 2
Produced water from the Bakken and Three Forks formation in the Williston Basin is notably high in total dissolved solids, which leads to many well maintenance issues related to halite scaling. Freshwater is widely used to prevent halite scaling; however, an efficient and practical halite scale management program is highly desirable to manage operation and maintenance costs. The programme includes identification of wells that need freshwater injection; optimisation of the fresh water volumes; minimising deferred oil production; and preventing other scales associated with the presence of fresh water in the wellbore. Developing a reliable scaling prediction model was challenging due to inconsistency of produced water composition of individual wells, limited reservoir fluid composition data and high sensitivity of halite scaling risk to slight changes of halite saturation index. The output of this study resulted in optimising both freshwater and chemical treatment programs to minimise halite scaling. Significant cost savings have been achieved from reduced freshwater usage, thereby resulting in lowered produced water disposal. Continuous freshwater injection systems were proven to actively control the ratio of freshwater to production water and achieve additional cost reductions.
Time Paper # Presentation
0830-0900 190739 Halite Challenges And Mitigation In The Bakken- Experience Of Managing High Saline Produced Water From Hydraulically Fractured Wells N. Zhang, D.D. Schmidt, W. Choi, Z. Reisenauer, J. Freeman, E.L. Kristensen, D. Sundararajan, Statoil USA
09:00 - 10:30
05T  Halite and Other Exotic Scale Challenges
Session Chairpersons Stephan Tobias Hatscher - Wintershall Holding GmbH, Myles Martin Jordan - Nalco Champion, An Ecolab Company
Unconventional onshore hydrocarbon wells. Silicates as scaling species have entered our perception through enhanced oil recovery techniques, such as alkaline as well as steam flooding. With our awareness raised, both scale types are identified as flow assurance challenges that require effective control options. This session will contain presentations on practical experiences, and laboratory testing of chemicals as well as some fundamental insights into the formation/control of exotic scales. There will be operational case studies on inhibitor applications, as well as new laboratory methodologies to evaluate scale inhibition and understand the scaling process for those unconventional scales.
Time Paper # Presentation
0900-0930 190736 Establishing Stable Gas Production by Squeezing a Novel Halite Inhibitor into a High Temperature Texas Gas Well C. Okocha, Clariant Oilfield Services; S. Wang, A. Kaiser, N. Turner, J.J. Wylde, Clariant Oil Services
0930-1000 190705 Novel Laboratory Test Method And Field Applications For Silica/Silicate And Other Problematic Scale Control H. Lu, J.L. Brooks, R. Legan, Baker Hughes, a GE company
1000-1030 190707 Impact of Gas Hydrate Inhibitors on Halite Scale Precipitation: An Experimental and Morphological Investigation S. Hosseini, Politecnico di Torino; E. Joonaki, J. Buckman, Institute of Petroleum Engineering, Heriot-Watt University; B. Ruggeri, Politecnico di Torino; B. Tohidi, Institute of Petroleum Engineering, Heriot-Watt University
Alternate 190714 Strategies for Squeezing Co-Mingled Sub-Sea Wells in the Same Flow Line - Guidelines for Scale Inhibitor Selection and Treatment Design in Sub-Sea and Deepwater Environments S.M. Heath, N. Poynton, M. Barber, Baker Hughes, a GE Company; N.S. Gjosund, Baker Hughes Solutions; D. Dugue, B. McCabe, Baker Hughes, a GE Company
Alternate 190756 Scale Deposition and Hydrodynamics - Benchtop to Pilot Rig N. Goodwin, M. May, D. Nichols, G.M. Graham, Scaled Solutions Limited
10:30 - 11:00
11:00 - 12:30
06T  Scale Management Methods
Session Chairpersons Ross Andrew McCartney - Oilfield Water Services Limited, Olav Martin Selle - Statoil ASA
In this session, a broad range of scale management topics will be presented. The first covers the laboratory work undertaken to qualify a scale inhibitor to prevent scale formation when an operator had to change from low sulphate seawater (LSSW) mixed with produced water (PW) for injection source to a blend of LSSW/PW and seawater (SW). The second summarises an operator's successful efforts to produce more water from their sulphate-reduction units, whilst optimising the quantity and type of scale inhibitors used (with a priority given to green chemicals). Finally, a comprehensive review of non-chemical methods for downhole scale control will be presented, including how they can minimise or alleviate the need for downhole chemical treatments.
Time Paper # Presentation
1100-1130 190713 Management of Scale Control in Produced Water Reinjection - The Near Wellbore Scale Challenge Overcome M.M. Jordan, Nalco Champion, An Ecolab Company
1130-1200 190699 Sea Water Desulphation - Optimisation of Scale Treatment and Reduction of OPEX & CAPEX S. Baraka-Lokmane, N. Lesage, A. Fayed, M. Jungas, S. HENG, M. Jacob, P. Pedenaud, TOTAL
1200-1230 190706 Non-Chemical Methods for Downhole Control of Carbonate and Sulphate Scales - An Alternative Approach to Scale Management? S.M. Heath, Baker Hughes, a GE company; E.J. Mackay, Heriot-Watt University; M. Ruslan, Ineos DeNoS
Alternate 190732 Scale Formation and Inhibition Study for Water Injection Well in San Joaquin Valley W. Wang, W. Wei, N. Ferrier, N. Arismendi, Chevron
Alternate 190701 Recent Experience in Squeeze Treating Huff ’n Puff Wells for Control of Steam-flood Aggravated Calcium Carbonate Scale A. Thornton, Clariant Oil Services; E. Belhimer, I.M. Smith, A. Subramaniyan, Clariant (Gulf) FZE
12:30 - 13:30
13:30 - 15:00
07T  Squeeze Simulation and Application of Reservoir Simulation Methods
Session Chairpersons Ping Chen - Halliburton, Wei Wei - Chevron
Numerical simulation approaches have been widely used in various processes of the scale control management. In this session, three papers representing the recent technology development in this area cover three different processes as follows: (i) Effect of Squeeze Treatment Stages Mixing during Injection on Lifetime (ii) Simulating Squeeze Treatments in Wells Completed with Inflow Control Devices (iii) Impact of Polymer EOR and Salinity on Barium Sulphate Scale Risk On two alternate presenting papers, one presents scale inhibitor squeeze treatment simulation with tracer programme design and another shows a simulation study for scale management during shale gas production.
Time Paper # Presentation
1330-1400 190751 Effect of Squeeze Treatment Stages Mixing during Injection on Lifetime O. Vazquez, E.J. Mackay, Heriot-Watt University; M. Raga, Heriot Watt University; G. Ross, Shell
1400-1430 190740 Simulating Squeeze Treatments in Wells Completed with Inflow Control Devices S. Ewing, Scaled Solutions Limited
1430-1500 190724 Impact of Polymer EOR and Salinity on Barium Sulphate Scale Risk M. Al Kalbani, E.J. Mackay, K.S. Sorbie, Heriot-Watt University
Alternate 190752 Simulation of Squeeze Treatment/Tracer program Designs O. Vazquez, Heriot-Watt University; I. Giannakouras, Heriot Watt University; E.J. Mackay, Heriot-Watt University
Alternate 190717 Simulation Study for Scale Management during Shale Gas Production X. Wang, E.J. Mackay, Heriot-Watt University
15:00 - 15:30
15:30 - 17:00
08T  Scale Management in Carbonate Reservoirs and MEG Regeneration Systems
Session Chairpersons Salima Baraka-Lokmane - Total E&P, Amy T. Kan - Rice University
In this session the kinetics of dissolution and precipitation of calcium carbonate in MEG systems are investigated, particularly the determination of crystal growth and agglomeration rates of carbonates in different compositions of the MEG/water mixture. The topic of extending the squeeze life time is presented, the strategy for improvement of adsorption of scale inhibitors onto the carbonate rock is presented. Interactions between scale inhibitors are examined. Water injection is commonly used in oil fields for pressure support and productivity enhancement. The traditional thermodynamics approach for scale prediction only provides precipitation potential at different mixing ratios. In this session a reservoir reactive transport modelling of carbonate reservoir that predicts better the time-dependent mineral scales formation is presented.
Time Paper # Presentation
1530-1600 190715 Enhancing Scale Inhibitor Squeeze Retention in Carbonate Reservoirs M.M. Jordan, Nalco Champion, An Ecolab Company; L. Sutherland, Nalco Ltd; H. Williams, Nalco Champion
1600-1630 190757 Reactive Transport Modelling of a Carbonate Reservoir under Seawater Injection Y. Hu, Southwest Petroleum University; E.J. Mackay, Heriot-Watt University
1630-1700 190738 Scale Management in MEG Systems - A Review M.E. Seiersten, S.S. Kundu, Institute for Energy Technology
Alternate 190753 Extending Reservoir Knowledge From The Produced Data O. Ishkov, E.J. Mackay, Z. Alkalby, V. Demyanov, Heriot-Watt University