... Abstract This paper analyzes the benefits of employing reciprocating engines to power offshore oil and gas (O&G) loads using methanol as fuel instead of (or mixing with) diesel that has been used conventionally. The study is carried out on a methanol-based single-cylinder, 50-liter, heavy...

... 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 (with differentiation between...

... 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...

... the effect of salinity on hydrate formation in the system of interest under typical steady-state and transient operations. Rocking Cell Apparatus Materials and Methods In addition to the increase in operating costs, the use of methanol can also raise the concern of corrosion, toxicity...

... flow assurance gas field wellhead platform hydrate inhibitor methanol pipeline shutdown trunkline technology conference hydrate formation startup prevent hydrate formation hydrate management strategy valve injection platform hydrate free water operation upstream oil & gas...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... instrumentation shuttle system recovery configuration installation production chemical valve expansion bladder offshore technology conference operation seawater methanol production chemistry upstream oil & gas Chitwood , S. ( 2015 ). Project Report; Stage 1 Conceptual Design...

.... 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...

... technology conference riser heating process methanol dynamic simulation model simulation direct electrical heating upstream oil & gas maintain mode shutdown modeling & simulation temperature increase deh flowline power supply pressure measurement pipeline OTC-25754-MS Benchmarking...

... costly subsea intervention and an extended loss of production. Addition of hydrate inhibitor will reduce the melting temperature and reduce the thermodynamic potential for hydrate formation. Flushing dead-legs with inhibitors such as methanol can protect them from hydrate formation during shut-in periods...

..., several secondary chemical properties were essential for successful application of the developed product. These included: solubility of the KHI and CI at elevated temperature and high salt concentrations (independent of each other and together), the chemicals are to be formulation in methanol...

... Abstract This paper details the continuous field application of an anti-agglomerant lowdosage hydrate inhibitor (AA-LDHI) for a deepwater Gulf of Mexico subseatieback with an unconventional projected production profile. Due to pumplimitations and projected production, as well as methanol...

... 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...

... 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...