SPE International Oilfield Scale Conference and Exhibition

20-21 June 2018, Aberdeen, Scotland, UK

Number of conference papers: 49

Day 1
20 June 2018
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Session 1: Sulphide Scale Formation and Control

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.

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Keogh, William, University of Leeds, Leeds
Charpentier, Thibaut, University of Leeds, Leeds
Eroini, Violette, Statoil ASA
Olsen, John Helge, Statoil ASA
Nielsen, Frank Møller, Statoil ASA
Baraka-Lokmane, Salima, TOTAL
Ellingsen, Jon Arne, Conoco Phillips
Bache, Oeystein, Conoco Phillips
Neville, Anne, University of Leeds, Leeds
190731-MS SPE Conference Paper - 2018
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Okocha, Cyril, Clariant Oil Services
Kaiser, Anton, Clariant Oil Services
Underwood, Shane, Clariant Oil Services
Samaniego, Walter, Clariant Oil Services
Wylde, Jonathan, Clariant Oil Services
190709-MS SPE Conference Paper - 2018
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Al-Harbi, B. G., Heriot Watt University
Graham, A. J., Heriot Watt University
Sorbie, K. S., Heriot Watt University
190743-MS SPE Conference Paper - 2018
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Session 2: New Inhibitor Test Methods and Molecules

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.

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Halvorsen, A. M. K., Statoil
Reiersølmoen, K., Statoil
Andersen, K. S., Statoil
Brurås, A. M., Statoil
Sylte, A., Statoil
Birketveit, Ø, Schlumberger
Evjenth, R., Schlumberger
Du Plessis, M. H., Schlumberger
190741-MS SPE Conference Paper - 2018
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Di Toto, Raul Antonio, Italmatch Chemicals
Bruyneel, Frederic, Italmatch Chemicals
Parravicini, Davide, Italmatch Chemicals
Kan, Amy T., Rice University
Tomson, Mason B., Rice University
Yan, Fei, CETCO Energy Services
190733-MS SPE Conference Paper - 2018
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Davies, H., BWA Water Additives
Toole, M., BWA Water Additives
Higgins, R., BWA Water Additives
190728-MS SPE Conference Paper - 2018
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Session 3: Developments in Scale Predictions

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.

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Silva, Duarte J., Heriot-Watt University
Sorbie, K. S., Heriot-Watt University
Mackay, Eric J., Heriot-Watt University
190737-MS SPE Conference Paper - 2018
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Deng, Guannan, Rice University
Kan, Amy T., Rice University
Dai, Zhaoyi, Rice University
Lu, Alex Y., Rice University
Harouaka, Khadouja, Rice University
Zhao, Yue, Rice University
Wang, Xin, Rice University
Tomson, Mason B., Rice University
190744-MS SPE Conference Paper - 2018
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Kan, Amy T., Rice University
Dai, Joey Zhaoyi, Rice University
Deng, Guannan, Rice University
Ruan, Gedeng, Rice University
Li, Wei, Rice University
Harouaka, Khadouja, Rice University
Lu, Yi-Tsung, Rice University
Wang, Xin, Rice University
Zhao, Yue, Rice University
Tomson, Mason B., Rice University
190754-MS SPE Conference Paper - 2018
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Session 4: Produced Water Sample Handling and Analysis Methods

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.

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Ewing, Sarah J., Scaled Solutions Ltd
Hunter, Nicole, Scaled Solutions Ltd
MacKinnon, Kirsty, Scaled Solutions Ltd
Whittingham, Kelly, Scaled Solutions Ltd
Graham, Gordon M., Scaled Solutions Ltd
Heath, Stephen, Baker Hughes
190698-MS SPE Conference Paper - 2018
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Johnston, C. J., Nalco Champion, An Ecolab Company
Jordan, M. M., Nalco Champion, An Ecolab Company
190734-MS SPE Conference Paper - 2018
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McCartney, R. A., Oilfield Water Services Limited
Hatscher, S. T., Wintershall Norge AS
Droppert, V. S., Wintershall Norge AS
190746-MS SPE Conference Paper - 2018
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Session 9: Knowledge Sharing Poster Session I

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 posters 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.

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Guan, Hua, Schlumberger
Bouamra, Reda, Schlumberger
Lindvig, Thomas, Schlumberger
Vernus, Jean-Claude, Schlumberger
190730-MS SPE Conference Paper - 2018
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Thornton, Alex, Clariant Oil Services
Belhimer, Yaz, Clariant Oil Services
Smith, Ian, Clariant Oil Services
Subramaniyan, Aravind, Clariant Oil Services
190701-MS SPE Conference Paper - 2018
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Chen, Tao, Saudi Aramco
Wang, Qiwei, Saudi Aramco
Chang, Frank, Saudi Aramco
190748-MS SPE Conference Paper - 2018
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Lee, Dong Joon, Baker Hughes, a GE company
Srivastava, Piyush, Baker Hughes, a GE company
Stead, Paul, Baker Hughes, a GE company
Brooks, Johnathon, Baker Hughes, a GE company
190742-MS SPE Conference Paper - 2018
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Eagle, L. M. Holding, Nalco Champion, an Ecolab Company
Spicka, K. J., Nalco Champion, an Ecolab Company
Fidoe, J., Nalco Champion, an Ecolab Company
Jordan, M. M., Nalco Champion, an Ecolab Company
190720-MS SPE Conference Paper - 2018
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Alduailej, Y., Heriot-Watt University
Boak, L. S., Heriot-Watt University
Alharbi, B., Heriot-Watt University
Graham, A. J., Heriot-Watt University
Sorbie, K. S., Heriot-Watt University
Oduro, H., EXPEC ARC, Saudi Aramco
Alkhaldi, M., EXPEC ARC, Saudi Aramco
Alqathami, S., EXPEC ARC, Saudi Aramco
190702-MS SPE Conference Paper - 2018
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Russek, Jeffrey, Baker Hughes a GE Company
Flores, Nicole, Baker Hughes a GE Company
Brooks, Johnathon, Baker Hughes a GE Company
190723-MS SPE Conference Paper - 2018
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Harouaka, Khadouja, Rice University
Lu, Yi Tsung, Rice University
Ruan, Gedeng, Rice University
Sriyarathne, H. Dushanee, Rice University
Li, Wei, Rice University
Deng, Guannan, Rice University
Zhao, Yue, Rice University
Wang, Xin, Rice University
Kan, Amy T, Rice University
Tomson, Mason, Rice University
190700-MS SPE Conference Paper - 2018
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Silva, Duarte J., Heriot-Watt University
Sorbie, Ken S., Heriot-Watt University
Ness, Giulia, Heriot-Watt University
Mackay, Eric J., Heriot-Watt University
190711-MS SPE Conference Paper - 2018
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Li, Wei, Rice University
Ruan, Gedeng, Rice University
Bhandari, Narayan, Rice University
Wang, Xin, Rice University
Liu, Ya, Rice University
Dushane, H., Rice University
Sriyarathne, M., Rice University
Harouaka, Khadouja, Rice University
Lu, Yi-Tsung, Rice University
Deng, Guannan, Rice University
Zhao, Yue, Rice University
Kan, Amy T., Rice University
Tomson, Mason, Rice University
190755-MS SPE Conference Paper - 2018
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Dushanee, H.,
Sriyarathne, M.,
Zhang, Zhang,
Ruan, Gedeng,
Harouaka, Khadouja,
Li, Wei,
Lu, Alex Yi-Tsung,
Deng, Guannan,
Wang, Xin,
Zhao, Yue,
Kan, Amy T,
Tomson, Mason,
190735-MS SPE Conference Paper - 2018
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Session 21: 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.

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Ness, G., Heriot-Watt University
Sorbie, K. S., Heriot-Watt University
190726-MS SPE Conference Paper - 2018
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Session 22: 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.

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Zhang, Nan, Statoil
Schmidt, Darren, Statoil
Choi, Wanjoo, Statoil
Sundararajan, Desikan, Statoil
Reisenauer, Zach, Statoil
Freeman, Jack, Statoil
Kristensen, Eivind Lie, Statoil
Dai, Zhaoyi, Rice University
Kan, Amy, Rice University
Tomson, Mason, Rice University
190739-MS SPE Conference Paper - 2018
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