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Keywords: methanol
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Proceedings Papers

Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31998-MS
... temperature and high pressure, and in the presence of free water molecules, gas-hydrate crystals will start to form. These gas hydrate crystals may accumulate and cause partial or complete plugging of the pipeline in the vertical or horizontal sections of the pipe. Methanol was previously found to be the only...
Proceedings Papers

Publisher: Offshore Technology Conference
Paper presented at the Offshore Technology Conference, May 2–5, 2022
Paper Number: OTC-31800-MS
... highlights the different types of fuels and drives systems. The ones that are realistically feasible and ready to order now in an IHC Offshore vessel are explored in this document. 1) Low-sulphur marine gasoil (LSMGO) as base case. 2) Methanol in (dual fuel) combustion engines and fuel cells...
Proceedings Papers

Paper presented at the Offshore Technology Conference, August 16–19, 2021
Paper Number: OTC-30998-MS
..., understanding how, when and where hydrate formation occurs are important factors in developing the hydrate management strategies. This paper addresses the hydrate management strategy in one of the subsea developments in the Gulf of Mexico (GOM). The effects of salinity, water cut, and amount of methanol...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30768-MS
... and implemented during the project's design, startup, and operation stages to come up with the most efficient and economical solution for hydrate mitigation. Methanol, MonoEthylene Glycol (MEG) and kinetic hydrate inhibitors (KHIs), as well as Twister Technology, were evaluated to act as hydrate prevention...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2020
Paper Number: OTC-30916-MS
... aggregation hydrate agglomeration brine phase interaction asphaltene offshore technology conference asphaltene-particle size crude oil emulsion stability alcohol emulsion upstream oil & gas flowline concentration flow assurance non-plugging behavior stability methanol sloan...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28823-MS
... Abstract The risk of gas hydrate formation is one of the major concerns for offshore flow assurance. Solutions of methanol (MeOH) and mono-ethylene-glycol (MEG) are most often employed as thermodynamic inhibitors (THI) to prevent the formation of hydrate plugs. This study involves experimental...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2018
Paper Number: OTC-28905-MS
... inhibitors (THI), commonly methanol or glycol. THIs require high dosage rate therefore production systems can reach a treatment limited by supply, storage, and umbilical injection constraints. Besides, high dosage of MeOH can cause crude contamination for downstream refineries, which may result in penalty...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27791-MS
... methanol injection is used to mitigate hydrates using thermodynamic inhibition. With an increase in water production forecasted, higher injection of methanol was required. However, existing chemical injection capabilities were limited and could not accommodate the forecasted increase in water production...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27879-MS
... methanol asphaltene remediation separation reservoir paraffin remediation wax inhibition condensate asphaltene deposition flowline oilfield chemistry obm contamination remediation of hydrates deposition scale remediation operation asphaltene inhibition assessment salinity scale inhibition...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27939-MS
... and not always needed and pipelines for long distances could become uneconomical. The alternative gas handling methods to be summarized in this paper will be floating Liquefied Natural Gas (FLNG), Floating Gas To Liquids (FGTL), floating Methanol (FML), other gas conversion processes and Floating Power...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 1–4, 2017
Paper Number: OTC-27944-MS
... After methanol has been injected into a subsea tree, it flows back with produced fluid, partitioning between the oil, gas and water phases. Under production circumstances where water cut is low, high concentrations of methanol may be left in the oil phase. This leaves export crude contaminated...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-26966-MS
... instrumentation shuttle system recovery configuration installation production chemical valve expansion bladder offshore technology conference operation seawater methanol production chemistry upstream oil & gas Presentation of OTC-26966-MS Presentation of OTC-26966-MS Chitwood...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2016
Paper Number: OTC-27134-MS
.... In the current economic climate, operators are looking for ways to prolong the life of their aging assets. This operation is an example of a unique, cost-effective solution to maturing brownfield assets. platform methanol replacement umbilical offshore technology conference carbon steel tube friction...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 4–7, 2015
Paper Number: OTC-25754-MS
... the dynamic simulation provided a good temperature match between measured (inferred) and simulated temperature increase, there was some offset in the simulated and real system pressure, particularly the pressure measurement at the riser top. It was confirmed that 5 m3 of methanol had been injected...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-24092-MS
... temperature and high salt concentrations (independent of each other and together), the chemicals are to be formulation in methanol and functionally compatible, have a minimum impact on oil in water and water in condensate separation, have low reservoir impact with produced water reinjection (PWRI), be HSSE...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 6–9, 2013
Paper Number: OTC-23965-MS
... formation. Flushing dead-legs with inhibitors such as methanol can protect them from hydrate formation during shut-in periods. reservoir surveillance hydrate inhibition otc error remediation of hydrates production logging production monitoring experiment wax remediation flow assurance...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2012
Paper Number: OTC-23397-MS
... of an anti-agglomerant low dosage hydrate inhibitor (AA-LDHI) for a deepwater Gulf of Mexico subsea tieback with an unconventional projected production profile. Due to pump limitations and projected production, as well as methanol-in-crude contamination issues, thermodynamic hydrate inhibition...
Proceedings Papers

Paper presented at the Offshore Technology Conference, April 30–May 3, 2012
Paper Number: OTC-23176-MS
... Operationspreparation and organization used to meet them. It details main flow assuranceconcerns and innovative subsea facilities operations, and presents the mainachievements of the Pazflor field start-up. reservoir personnel enhanced recovery angola completion operation methanol preparation upstream...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21442-MS
... injection volume can both exacerbate scaling problems by salting out of high TDS brines, and contaminate the exporting hydrocarbon by methanol. All these offshore production challenges, coupled with complicated logistics and HS&E concerns on THI, have being endorsed the development and field deployment...
Proceedings Papers

Paper presented at the Offshore Technology Conference, May 2–5, 2011
Paper Number: OTC-21836-MS
... blockage of production. Prevention of hydrate blockages via chemical inhibition is typically accomplished by using either thermodynamic inhibitors (methanol, ethylene glycol) or Low Dosage Hydrate Inhibitors (LDHIs). The production system described herein consists of four subsea gas wells (2,200 feet...

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