... in water and the partial pressure of oxygen in the surrounding gas phase (Ref-6). Vacuum deaeration causes mass transfer of oxygen from the solution by reducing the partial pressure of oxygen in the gas phase by creating a vacuum and lowering the overall pressure. Traditional vacuum towers have a low...

... length. The effort aims at economical materials remaining within safe limits without being overly conservative . It is well known that qualification for sour service has occurred experimentally within a matrix of pH and H 2 S partial pressure ever since NACE MR0175 was first established some 40 years...

... & gas failure mode material property corrosion management offshore technology conference design analysis validation drilling material selection partial pressure mechanism verification specification fracture toughness h2s management oilfield chemistry References References W. D...

... inhibitor tolc risk riser corrosion corrosion rate partial pressure materials and corrosion assessment insulation critical parameter References References Singer , M. , et al. ( 2009 ). CO2 Top of The Line Corrosion in Presence of Acetic Acid — A Parametric Study . NACE Corrosion...

... steel materials and corrosion riser corrosion localized corrosion fpso stainless steel h2s management flowline corrosion otc 23320 material selection pipeline corrosion stress corrosion reservoir partial pressure criteria carbon steel presalt field oilfield chemistry upstream oil...

... Abstract In the oil and gas industry there is a growing demand for riser solutionsdedicated to high partial pressures of CO2. Part of this demand is driven bydeep water high pressure reservoirs with high CO2 content. In addition there isa growing interest in reinjection of CO2. The reinjection...

... as an increase in the CO2 concentration in the pipe annulus, subjecting its metallic armor layers to a more aggressive environment. Based on this scenario, Wellstream has established a research and development programme, in partnership with CEFET-RJ, to evaluate the effects of the CO2 partial pressure...

... steel grade otc 21371 exposure test oilfield chemistry corrosion inhibition corrosion management metals & mining reaction area experimental result kilhy model prediction pressure sheath diffusion reaction model flexible pipe partial pressure h2s management thickness production...

... chemistry otc 20995 steel hardness sour service concentration offshore technology conference hydrogen pipeline corrosion h2s management production chemistry material assessment reservoir souring sour environment suitability corrosion inhibition partial pressure flowline corrosion riser...

... in the annulus to consume the H2S. This phenomenon has already been observed in full scale experiments with high level of H2S in the bore. The standard corrosion and SSCC/HIC testing methods, generally use a large flowrate of gas compared to the surface of steel, i.e. H2S partial pressure remains constant...

... suitable flexible pipe structures have had an impact on improving pipe design optimization, reducing design cycle times, minimizing the need for project specific qualification and finally reducing pipe cost. condensation steel wire riser partial pressure requirement sheath calculation...

... Abstract This paper describes patent pending, physical solvent based gas treating configurations for removing acid gas from high-pressure natural gas streams. The processes are targeted for offshore applications where the feed gas CO 2 partial pressure is above 60 psia. These new...

... of unbonded flexible pipe and a number of users. This paper describes some results of the case studies. It should be emphasized that the results are equally applicable to static and dynamic flexible pipes. riser corrosion hydrogen gas partial pressure materials and corrosion otc 14065 coefficient...

... can be established. Measures that are available application strength duplex stainless steel well integrity corrosion inhibition riser corrosion partial pressure production chemistry materials and corrosion resistance flowline corrosion subsurface corrosion stainless steel low...

... emerges from the carbon steel is detected. Corrosion rates increase with an increase in temperature and carbon dioxide partial pressure and liquid flow rates. With an increase in oil/water fraction, corrosion rates increase upto 60% oil, for the conditions studied. Iron carbonate crystal deposition...

... increase in C0st, has led to the materials being Specified for CO 2 , and H 2 S containing Process lines, where the high partial Pressure of CO 2 , precludes the use of carbon steel, and where high temperatures (>60°C)preludes the use of austenitic Stainless steels. The results in term of application...

..., or CO 2 partial pressure. It was strongly influenced by the hydrocarbon phase, inhibitor concentration, and mechanical mixing of oil and water phases. Inhibitor films demonstrated film persistency, lasting at least two weeks. INTRODUCTION One factor of importance to the petroleum industry...

... to calibrate the Shell's S c test for low alloy steels and to determine the threshold H 2 S partial pressure with respect to SSC [1] . Other materials, notably AISI 410 and 17-4 PH stainless steels, have shown resistance to SSC in some sour field applications prior to the development of laboratory screening...

... on the specific problems encountered by ELF AQUITAINE, and with the corresponding definition of well corrosivity. THE VARIETY OF THE EFFECTS OF CO 2 ON CORROSION AND ON THE RESULTING PROBLEMS Importance and extension of the notion of CO 2 partial pressure For millions of years, the CO 2 in hydrocarbon...

... as extensive use of pre and post-weld heat treatments. contamination oxygen content partial pressure reservoir surveillance stability composition weld pool weld metal chemistry production control welding upstream oil & gas hyperbaric flux cored arc weld production monitoring weld metal...