... to GAP along with process parameters to predict wax and hydrate deposition in the pipeline-riser system. The GAP model was then connected to RESOLVE to run manual and automatic mitigation programs for wax and hydrate deposition in the system. Predicted data obtained were plotted against relevant...

...Model Development Governing Equations for Deposition Model The Navier-Stokes equations for fluid flow including continuity equation: In the domain of dissolution and deposition reactions in porous media and on mineral surfaces, the coupled advection-diffusion model has gained widespread...

... Where δ is the deposit thickness, t is time, П 1 is thickness increase due to trapped oil П 2 is deposit removal through shear stripping D m is the diffusion coefficient C is the concentration, T is the temperature and r is the pipeline radius. The Matzain model is widely used...

... deposition differential equation aggregation application deposition model heat transfer equation wax inhibition flow assurance equation coefficient asphaltene particle offshore technology conference oilfield chemistry particle paraffin remediation larger particle asphaltene deposition...

... operations. The contour plot of mass deposition, which the DST provides, will assist OSROs in planning spray operations to disperse oil spills in the most efficient and timely way. The DST Abstract Aerial application of dispersants are an effective means of responding to oil spills in coastal waters...

... levels in lieu of the actual parameters. Each sample consists of two rectangular deposits using laser beam angle greater (Down) or less (Up) than 90° (Angle) with respect to the direction of travel. Three additional samples (A, B, C) were fabricated to investigate the effect of the graded structure...

... Abstract Numerous solids including gas hydrates, waxes, and asphaltenes have the potential to form in the production lines of gas and oil fields. This creates a highly non-ideal scenario as the accumulation of said species leads to flow assurance issues, especially with long-term processes like deposition...

...Introduction Paraffin and asphaltene build up is a fact of life in many oil and gas production fields. The deposition of organic solids poses a serious challenge in the oil industry, from production to oil transportation and storage operations. When downhole reservoirs lose pressure...

... As the offshore activities moves into more remote, deeper and colder environments, it becomes more challenging to design well working tie-back solutions that handles hydrate formation and wax precipitation and deposition in flowlines. Hydrates are crystalline structures that form from...

..., with hydrate growth at the water-oil/water-gas interface under a certain degree of thermal driving force; (3) hydrate agglomeration and deposition; (4) particle jamming and hydrate plugging. Among these mechanisms, film growth, deposition (bedding) can be categorized into hydrate deposition. Traditionally...

... Asphaltenes and waxes can precipitate and deposit in reservoirs, wells and equipment increasing production and operation costs. Previous studies showed the co-precipitation of these heavy organic compounds under field conditions and that the chemical treatment for one fraction can affect...

... during gas restart suggests that the severity of the hydrate restriction decreases as the MEG content is increased above 10 wt%. Further, our preliminary experimental results illustrate that severe hydrate deposition in the jumper could be completely avoided by injecting MEG at concentrations above 20 wt...

... Abstract Asphaltenes are a major problem for oil industry. Their variability in size, structure and polarity presents a challenge to develop formulations that are effective against precipitation and deposition for all types of asphaltenes. Also, changes in production systems, such as the rate...

..., an Ambit™ system was used to fabricate a tensile bar with a strain sensor encapsulated within the structure in order to provide a proof-of-concept demonstration for the oil and gas industries. fabrication electronics deposition youngstown state university tensile bar additive manufacturing...

... Abstract The formation/precipitation and deposition of pipeline solids, such as gas hydrates, asphaltenes, and waxes have long plagued production fields. Given the vast differences in chemistries of these solids, any current prevention or mitigation strategy, particularly for cases where...

... Abstract The deposition and growth of scale on the internal surface of oil & gas pipelines is a major challenge in the operation and maintenance of these lines. Pigging and chemical treatment are currently available solutions, but these are expensive, and a permanent passive alternative...

... are not enacted. Typically, injected chemicals will either inhibit nucleation or dissolve already-formed deposits to restore original flow conditions back to the system; however, this can be a costly option. More recently, management strategies have been proposed where solids are handled in a controlled fashion...

... . doi: 10.2118/125131-PA Abstract Prior to a planned transition in producing zones, an 18,000′ single well subsea tieback flowline to a deepwater Gulf of Mexico production facility experienced a restricted flowline ID and partial blockages due to paraffin deposition. Efforts were coordinated...

... deposition issues: hydrates paraffins (waxes) asphaltenes scales, etc. They interface with multiple disciplines involved with the project, including subsurface, pipeline and risers, subsea hardware, topsides process facilities, chemical vendors, the fluid laboratory, etc. 2 OTC-28704-MS Beginning...

... longer-distance subsea tie-backs and limited chemical inhibition. This presentation reviews research datasets from flowloops on hydrate deposition phenomena and includes an initial analysis on the impact of shear stresses on hydrate deposits. This study integrates experimental data from unique high...