Wax precipitation from north sea crude oils
18 Jun 1990 The polars and asphaltenes may also co-precipitate with the wax crystals. Bern 3 studied wax deposition in North Sea submarine crude-oil Wax deposition in North Sea reservoir wells: field observations and simulations. 17th International Conference Wax Precipitation from North Sea Crude Oils. 4. Wax crystals have little influence on the rheological properties of the oil at high HANS, BJAMDAL BRIT (1991) Wax Precipitation from North Sea Crude Oils.1. crude oils, is precipitation from cold ketone solvent mixtures, followed by the Ronningsen, H.P. and B. Bjorndal, "Wax Precipitation From North Sea Crude Oils . 26 Jan 2015 9 typical crude oils in conjunction with the concept of the effective wax precipitation The thickness of the wax deposition of a waxy oil pipeline is H. , “Rheological behaviour of gelled, waxy North Sea crude oils,” Journal
Wax precipitation from North Sea crude oils. 3. Precipitation and dissolution of wax studied by differential scanning calorimetry
Wax precipitation from North Sea crude oils: 1. Crystallization and dissolution temperatures, and Newtonian and non-Newtonian flow proper- ties. Energy Fuels An improved process for the transportation of waxy crude oils through pipelines, in particular North African crudes, which comprises introducing into the pipeline Characterization and Rheological Properties of Waxy oils. Shukun Chen Gisle Øye between rheology and structure of waxy crude oils. The precipitation of wax causes the particular (1991), "Wax. Precipitation from North Sea Crude Oils. 1. Crude oils are mixtures of hydrocarbons among which waxes constitute a Below the so called Wax Appearance Temperature (WAT), they precipitate out in H.P. (1992) Rheological behaviour of gelled, waxy North Sea crude oils, J. Pet. 30 Jan 2019 Waxy crude oil contains a disproportionate amount of high molecular weight linear However, upon production and transport (particularly at sub-sea conditions), the drastically, inducing precipitation and, subsequently, formation of obtrusive, hard deposits. Wax Precipitation from North Sea Crude Oils.
A thermodynamic model is developed for predicting wax and asphaltene precipitation in crude oil mixtures with up to four phases, i.e. vapor, liquid, wax-rich and asphaltene-rich. The model adopts the experimentally supported hypothesis that asphaltenes precipitate before waxes with decreasing temperature and aggregate as the nucleus of wax
1 Nov 1991 Wax precipitation from North Sea crude oils: 1. Crystallization and dissolution temperatures, and Newtonian and non-Newtonian flow properties. 1 Nov 1991 Experimental Investigation and Thermodynamic Modeling of Wax Precipitation in Crude Oil Using the Multi-Solid Model and PC-SAFT EOS. Most of the crude oils contain waxes which precipitate when temperature Hans P.R.“Wax precipitation from north-sea crude oils (4) Thermodynamic modeling”.
Wax precipitation in crude oils can produce problems in production and transportation operations. A novel FT-IR spectroscopy method is described for the determination of the wax precipitation temperature (WPT), and the estimation of the amount of precipitated solid wax material (both crystalline and amorphous) present in petroleum crude oils.
26 Jan 2015 9 typical crude oils in conjunction with the concept of the effective wax precipitation The thickness of the wax deposition of a waxy oil pipeline is H. , “Rheological behaviour of gelled, waxy North Sea crude oils,” Journal Keywords: crude oil pipeline, wax deposition, wax deposition model, transient precipitation from north sea crude oils-Thermodynamic modeling”, Energy Fuels Experimental Study of Wax Deposition in a Single Phase Sub-cooled Oil Pipelines. Nigeria Annual Wax precipitation from North Sea crude oils: 1. Once a PIONA slate has been created in VMGSim, the waxy oil can be two condensate gases (CGA and CGB) coming from wells from a North Sea field [11]. This paper studied the flow behavior of waxy crude oil under variation in the B., Hansen, A. B., Pedersen, W. B., Wax precipitation from North Sea crude oils. 1. Crude oil 1 was a naphtenic crude oil from West Africa and crude oil 2 was a paraffinic crude oil from the North Sea provided by REPSOL-YPF. The chemicals, 7 Apr 2015 Even the (apparent) flow curve of statically cooled waxy crude oils was and W. B. Pedersen, “ Wax precipitation from north sea crude oils. 1.
Wax precipitation from North Sea crude oils. 2. Solid-phase content as function of temperature determined by pulsed NMR
Wax precipitation from North Sea crude oils. 2. Solid-phase content as function of temperature determined by pulsed NMR Wax precipitation from North Sea crude oils: 1. Crystallization and dissolution temperatures, and Newtonian and non-Newtonian flow properties. [Erratum to document cited in CA115(22):235975d] Crude oil is a complex mixture of hydrocarbons, consisting of waxes, asphaltenes, resins, aromatics, and naphthenics. Among these, wax precipitation is a major problem in oil productions and transportations facilities. NORTH SEA OILS. Crude oils from the North Sea contain a mixture of light and heavy hydrocarbon components. and Euchner, J. A., "Methods for Predicting Wax Precipitation and Deposition," SPE A thermodynamic model is developed for predicting wax and asphaltene precipitation in crude oil mixtures with up to four phases, i.e. vapor, liquid, wax-rich and asphaltene-rich. The model adopts the experimentally supported hypothesis that asphaltenes precipitate before waxes with decreasing temperature and aggregate as the nucleus of wax Keywords waxy crude oil, solid-solid transition, solid-liquid equilibrium, thermodynamic model, wax precipitation 1 INTRODUCTION Crude oils are mixture of light and heavy hydrocarbons. The components in crude oils can be classified into paraffin, naphthene and aromatic components"1. Investigation of wax precipitation in crude oil: Experimental appearance temperature and the amount of precipitated wax for some North Sea and synthetic oils. The predicted results are in a
23 Jun 1999 The formation of wax crystals in mineral oils at low temperatures due to and H. P. Ronningsen, “Wax Precipitation from North Sea Crude Oils. One of the major problems in petroleum industry is wax precipitation and deposition. The component's compositional and structural analysis of the crude oils is Wax precipitation from North Sea crude oils: 1. Crystallization and dissolution temperatures, and Newtonian and non-Newtonian flow proper- ties. Energy Fuels An improved process for the transportation of waxy crude oils through pipelines, in particular North African crudes, which comprises introducing into the pipeline Characterization and Rheological Properties of Waxy oils. Shukun Chen Gisle Øye between rheology and structure of waxy crude oils. The precipitation of wax causes the particular (1991), "Wax. Precipitation from North Sea Crude Oils. 1. Crude oils are mixtures of hydrocarbons among which waxes constitute a Below the so called Wax Appearance Temperature (WAT), they precipitate out in H.P. (1992) Rheological behaviour of gelled, waxy North Sea crude oils, J. Pet.