... CO₂ corrosion carbon steel H₂S high temperature INTRODUCTION The presence of large quantities of CO₂ (from 25% to 89%) in gas fields have imposed increased challenges on the economics of project development and subsequent operations. ¹ A major issue in developing...

...Abstract A new Ni-based alumina-forming alloy, NiCoCrMoAl, has been invented with the high creep strength and excellent high temperature oxidation and corrosion resistance for high temperature applications. The static oxidation tests of the alloy, along with the other commonly used Ni-based high...

... and chemical resistance but typically low ductility (i.e. < 5 % elongation to break). ³ To overcome this limitation, an impact-modifier was introduced to provide the needed ductility required during subsea pipeline installation activities. While high temperature polymers are generally much more...

...DISSCUSSION The formation of the corrosion product scales in N₂-deoxygened formate fluid The initial corrosion rate on the surface of super 13Cr stainless steel was observed to be relatively high in high temperature formate completion fluid conditions. It is acknowledged...

...Carburization has also been observed on alloys exposed to high temperature sCO₂. Chromium in martensitic stainless steels react with carbon to form chromium carbide during this process. The carbon is thought to be the result of the carbon diffusing through the oxide film layer to react...

...Abstract The present research study investigated the effect of time duration on crude fractions corrosivity in high temperature experiments performed in a flow through apparatus with continuous replenishment. The experiments duration varied from 1 to 7 days and assessed the corrosivity as function...

... exposure. The corrosion products are of different size and are distributed unevenly over the area as seen in figure 3B . The corrosion products show a hexagonal shape which is typical for FeS (Pyrrhotite) product formed at high temperature (over 120°C) and high H₂S particle pressure. Pyrrhotite...

...Abstract Laboratory testing of corrosion inhibitors under high temperature high pressure (HTHP) conditions is challenging. HTHP testing has been traditionally performed in closed systems with fixed liquid/gas volume and testing results are usually influenced/compromised by the accumulation...

...Abstract Mitigating oil and gas production with chemical inhibitors is challenging when high temperature (>120°C) and H₂S is present. The high temperatures associated with deep wells and thermal recovery methods demand an advancement in conventional inhibitor technologies...

.... Such a study is motivated by the fact that even though for HPHT application if the temperature is higher than 107°C, a drop of the temperature can be encountered for instance in case of well shut-in. Experimental Procedures Materials Abstract High Pressure and High Temperature wells are very critical...

...-density formate completion fluid at high temperature, because of the leakage of CO₂ and the mechanical damage on the tubing surface. In this paper, the hydrochemical simulation software is used to calculate the needed content of pH buffer. The corrosion behavior of C110 tubing was investigated...

... are commonly used in commercial NAP corrosion inhibitors. Two such inhibitors have been evaluated in laboratory experiments using a specific testing – “pretreatment - challenge” procedure. This method evaluates the effects of NAP in oils at high temperature on the formation and corrosion resistance of scales...

...sulfur naphthenic acid Total Acid Number (TAN) corrosion model compounds high temperature INTRODUCTION Highly corrosive effects at high temperature of some heavy crude oils are the result of complex interactions between naphthenic (NAP) acid and sulfur (S) compounds they contain. ^{1 , 2}...

... such as temperature, coatings, contaminants, and pressure have been covered in the literature, other variables of potential interests, such as welding, stress corrosion cracking, galvanic issues, or crevices have not yet been studied. The impact variables on oxidation in high temperature sCO₂, based...

... CI has a long history in sour, high elemental sulfur fields and it showed insignificant foaming in laboratory tests. sour gas field elemental sulfur high H₂S high CO₂ wheel bomb high temperature INTRODUCTION Sour production in the presence of elemental sulfur is one...

... fluid at high temperature, where the temperature up to 180 °C, with the possibility of CO₂ mixed, and mechanical damage on the tubing surface. In this paper, the corrosion performance of C110 tubing is investigated in high-density formate completion fluid at 180 °C with different combinations...

...Abstract Corrosion testing routinely involves testing brine and hydrocarbons under high temperature and high pressure (HTHP) in the presence of CO₂ and H₂S. One common laboratory procedure is heating a pressure vessel to the test temperature and loading the gases...

...Depletion of hydrocarbon reservoirs in relatively shallow strata has driven the oil and gas industry to drill deeper in order to access hitherto untapped resources ¹ . Due to geologic reasons ² , these new reservoirs usually feature high temperature and high pressure...

...Effect of Scale Inhibitor Addition In addition to the potential of FeCO₃ passivation on the metal coupon, high temperature test conditions may also favor mineral scale formation such as calcium carbonate (CaCO₃). In test conditions which contain synthetic fluids with a high...

... was 0.024 mm/year and 0.24 mm/year respectively. laboratory testing simulated geothermal environment high temperature stress corrosion cracking UNS S31254 INTRODUCTION Fluid Chemistry Materials used in high temperature geothermal steam can be subjected to corrosion due to the chemical composition...