... is the difference in corrosion potentials of the individual materials in the given environment which causes galvanic currents the magnitude of which depends on the sum of all system resistances (Ohmic Law). Any assessment of the corrosion rates at bimetallic couplings needs information on the free corrosion...

... the cement pieces using a die press. Chemical analysis of the pore solution extract was performed and used for preparing CSPS for 13Cr corrosion testing. Corrosion tests were performed in CSPS at equilibrium with CO₂ or CO₂+H₂S at 10 MPa at 4, 85, and 200 °C. Corrosion rates...

... based on case histories and data and the resulting corrosion rates determined by the committee for the various corrosion protection methods. The results of the committee findings in response to the two questions will be summarized. The presentation will summarize other corrosion control considerations...

... as the gas. Electrical resistance (ER) probes for inhibitor screening tests and carbon steel weight-loss coupons for inhibitor validation tests were used for the measurement of corrosion rates. The results showed that the baseline corrosion rates (without inhibitors) at the bottom and top of the pipes were...

..., respectively. Three panels were removed from each system, at 60-70 days intervals and evaluated with respect to corrosion rates and coating performance, until all 120 panels had been evaluated. The results of this short test (~ 8 months) indicated relative abilities of coating systems to protect steel...

... ^** 0.12 8 1.05 0.5 Bal Wt%, Measured unless in Italics (nominal), * 0.3V, 0.01Nb in addition to elements in table. ** 0.25V, 0.075N in addition to elements in table. super critical carbon dioxide corrosion rates advanced nuclear...

...nickel alloys hydrofluoric acid stress corrosion cracking corrosion rates internal attack INTRODUCTION Of the common halogen acids, hydrofluoric is the most difficult to deal with. Not only is it extremely hazardous, but also it attacks glass, titanium, zirconium, and tantalum, in addition...

... 1997. As part of the response after this event, inspection surveillance was increased on many process lines in various services. In addition, greater attention was given to the prediction of corrosion rates and the effect of process variables on such corrosion rates. In attempting to categorize...

..., the experimental data demonstrate that the electrochemical corrosion rate increases with increasing pressure in low-density supercritical systems, corresponding to an increase in the density and the dielectric constant. Supercritical water oxidation electrochemical noise analysis corrosion mechanisms pressure...

... Mail address: Syria Shell, P.O. Box 824, Slough SL3 0BA, England, UK Corrosion management corrosion inhibition mature reservoirs leaks deferment of production chemical injection skids produced water corrosion rates INTRODUCTION Corrosion management of production facilities becomes critical...

... is calculated considering that the material forms part of a long metallic structure, with corrosion as the main cause of deterioration of the pipeline structure; and analyzed from directional simulation assuming chemical and mechanical factors affecting the structure. Corrosion rates are calculated from...

...Abstract Measurements of the localized flow patterns, flow characteristics, and corrosion rates using high-precision, non-intrusive flow and corrosion/erosion ultrasound system have been made at various locations along the field pipeline. The field pipeline is schedule 40, a 20 cm diameter...

... had two objectives. The first one was to determine the efficiency of different products as cleaners for aluminum fins and as solvent of deposits formed in a stainless steel heat exchanger; the second one was to quantify the corrosion rate that could be reached when these chemical treatments are used...

... to the composition of the deposit and the metal surface temperature. In woodchip boilers, a similar corrosion rate and corrosion mechanism has on some occasions been observed. Co-firing of straw (10 and 20% energy basis) with coal has shown corrosion rates lower than those in straw-fired plants. With both 10 and 20...

... plan and prevent unplanned shutdowns. corrosion rates database environments equipment database graphic hydrocarbon process indications inspection reports internal environments lookup tables master screen network recommendation tracking query validity INTRODUCTION Refineries and other...

...CO₂ Corrosion Non-Annular Flow Corrosion Rates Introduction Early in the life of a gas well, the high volume of gas and low water production rates tend to produce a flow regime from bottom hole to the well head that is annular. Under this condition the liquid flows against the pipe...

...Abstract One of the most fundamental issues in current day corrosion research is assessment of corrosion rates in steels and determination of corrosivity of typical operating environments in oil and gas production. Such an assessment requires an understanding of the role of primary environmental...

...At the lower temperature, the corrosion rate is low and reaches steady state in a relatively short time. At this temperature evaporation losses and decomposition of the acid with time are minimal and the TAN value of the oil sample remained nearly unchanged even after 72 hours. At higher...

...Abstract One of the most fundamental issues in current day corrosion research is assessment of corrosion rates in steels and determination of corrosivity of typical operating environments in oil and gas production. Such an assessment requires an understanding of the role of primary environmental...

...-base alloys corrosion rates volatile metal chlorides INTRODUCTION Many chemical processes involve the exposure of metallic materials to chlorinating environments at elevated temperatures. This type of environment is extremely corrosive due to the formation of non-protective, volatile corrosion...