Inorganic Scale Control Within MEG/Methanol Treated Produced Fluids
Bibliographic record
Abstract
Inorganic Scale Control Within MEG/Methanol-Treated Produced Fluids M. M. Jordan; M. M. Jordan Nalco Search for other works by this author on: This Site Google Scholar N. D Feasey; N. D Feasey Nalco Search for other works by this author on: This Site Google Scholar C. J. Johnston C. J. Johnston Nalco Search for other works by this author on: This Site Google Scholar Paper presented at the SPE International Symposium on Oilfield Scale, Aberdeen, United Kingdom, May 2005. Paper Number: SPE-95034-MS https://doi.org/10.2118/95034-MS Published: May 11 2005 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Get Permissions Search Site Citation Jordan, M. M., Feasey, N. D, and C. J. Johnston. "Inorganic Scale Control Within MEG/Methanol-Treated Produced Fluids." Paper presented at the SPE International Symposium on Oilfield Scale, Aberdeen, United Kingdom, May 2005. doi: https://doi.org/10.2118/95034-MS Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll ProceedingsSociety of Petroleum Engineers (SPE)SPE International Oilfield Scale Conference and Exhibition Search Advanced Search Abstract The control of inorganic scale (carbonate/sulphate) has been a challenge to the production of hydrocarbon and associated water for over 50 years. The current trend in the industry to develop satellite fields with longer tie backs and in deeper water has resulted in new challenges to control such scale deposits during hydrocarbon production. The lower fluid temperatures that are present in these subsea developments during fluid production increases the sulphate scaling tendency and makes scale control very difficult over the long residence time now experienced due to the tie back lengths. The introduction of methanol, mono ethylene glycol (MEG) or tri ethylene glycol (TEG) to control hydrate risk presents new challenges in terms of increased scale tendency (dehydration of brine) and interactions of the hydrate control chemicals with scale inhibitor performance.For these challenging environments a full understanding of the evolution of the brine chemistry through the field life cycle is essential (types of scale, supersaturation changes). This paper will outline the process by which this risk assessment of scale formation in the presence of hydrate control chemicals is made and how the scale control measures for effective scale management of subsea developments is carried out. Development of new and improved scale inhibitors for these types of applications within both methanol and MEG hydrate control chemicals will be outlined. Field case studies from the North Sea and Southern Africa will be used to illustrate the scale control challenges and how they have been overcome with engineering and production chemical solutions. Keywords: sulphate, hydrate remediation, hydrate inhibitor, oilfield chemistry, inhibitor, asphaltene inhibition, hydrate inhibition, methanol, international symposium, corrosion inhibitor Subjects: Production Chemistry, Metallurgy and Biology, Inhibition and remediation of hydrates, scale, paraffin / wax and asphaltene Copyright 2005, Society of Petroleum Engineers You can access this article if you purchase or spend a download.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.005 | 0.001 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".