...Abstract The severity of internal corrosion from the presence of high concentrations of acid gases (H₂S and CO₂) and elemental sulfur poses long-term integrity challenges that make carbon steel the unlikely material of construction. This paper presents a 30-plus-year history...

... 1 General parameters for all wheel bomb tests Parameters Condition Bomb volume 70 mL Fluid volume per bomb 50 mL Elemental Sulfur 50 mg (1 mg/L or 0.1 wt%) Coupon material C1018 carbon steel (1.00”x0.25”x0.0625”) Rotational speed Wheel bomb was rotated at ~30 rpm...

...While the elemental sulfur deposits do require periodic cleaning of the heat exchanger bundles, the black tar-like fouling increased the down-time frequencies. It was also very tenacious, requiring longer time and extra effort to clean in addition to asset integrity concerns. CHNS combustion...

... , 1988 ). 6 Wilhelm   S.M. , " Effect of Elemental Sulfur on Stress Corrosion Cracking of Nickel Base Alloys in Deep Sour Gas Well Production ," Corrosion/88NACE , 1988 ), p. 77 / 71-15 . 7 Miyasaka   A. , Denpo   K. , Ogawa   H. , " Environmental Aspects of Scc of High Alloys...

... There are aggressive wells in Canada, Germany, and the Middle East that have high temperature, high H₂S and CO₂ content, and which produce several tons of elemental sulfur each day. These wells must be produced with co-injection of sulfur solvents to prevent the plugging of the well bore. As one...

... products were collected for chemical composition analyses. In addition, fluid analysis was carried out. A corrosion pattern was established along the gas dehydration circuit, which revealed mainly the presence of iron sulphides with varying stoichiometry along with elemental sulphur, iron sulphate, iron...

... as closely as possible the conditions of a specific gas field containing high levels of H₂S and, possibly, elemental sulfur. The main three parameters of interest are the effect of elemental sulfur, sulfur solvent, monoethylene glycol (MEG) and possible mutual interactions between them...

...In field practice, sulfur solvent and corrosion inhibitor are often used to remove the elemental sulfur deposit and to control the corrosion. Previous work demonstrated that the combination of a solvent and a corrosion inhibitor significantly reduced corrosion rate of carbon steel due to elemental...

...Abstract Elemental sulfur corrosion has become one of the most important risks during production in highly sour gas fields and one of the most complex corrosion issues due to the co-existing sulfur, H₂S and CO₂. According to the condition of downhole and surface system...

...Abstract The presence of elemental sulfur and polysulfide severely aggravates the corrosion in sour gas systems. Application of sulfur solvent and corrosion inhibitor aims to mitigate corrosion. However, in some cases, very sticky solid deposits in pipeline are found, which is believed...

... areas of study. elemental sulfur chemical physical sulfur solvent precipitation deposition dissolve dissolution amine polysulfide hydrocarbon hydrogen polysulfide corrosion inhibition INTRODUCTION Mitigating elemental sulfur deposition and managing the associated sulfur-accelerated...

...INTRODUCTION Elemental sulfur deposition is usually associated with high H₂S systems, but elemental sulfur can also be deposited in systems containing small amounts of H₂S under conditions where oxygen is allowed to enter the gas stream ¹ . Most elemental sulfur...

...The objectives of this project are to develop and evaluate the testing protocol for screening the elemental sulfur solvent, and to develop the sulfur corrosion inhibition program. The data demonstrated that corrosion rates are enormous. The sulfur solvents are effective in dissolving sulfur...

... H₂S and CO₂ can be further enhanced by the existence of sulfur, and even the nickel-based alloys may suffer severe pitting corrosion under the deposited sulfur, which will increase the risk of corrosion failure of tubing, casting and pipelines. ^{1 - 2} Elemental sulfur corrosion...

...Without sulfidic electron transfer layer no reduction of elemental sulfur takes place and, hence, no corrosion reaction occurs. This is due to the fact that elemental sulfur is a perfect insulator with hydrophobic surface properties. Abstract Round tensile specimens of CRAs [Alloy 904L (UNS N...

... are significantly more severe than the conditions approved by NACE MR0175. This result suggests that the existing limits of 4c materials in the NACE MR0175 are too conservative for Alloy 29. Tests with elemental sulfur In aqueous systems, carbon steels are corroded with catastrophic rates in the presence...

... and emulsion drop surfaces were presented.¹ This paper will report the behaviors and performance of selected corrosion inhibitors in the presence of elemental sulfur. The knowledge will help us gain a better understanding of how corrosion inhibitors work in the presence of elemental sulfur and thus...

...EXPERIMENTAL PROCEDURE Experiments were conducted to determine temperature effects on the acidification of pure water with elemental sulfur. This involved adding elemental sulfur to deoxygenated deionized water purged with nitrogen and measuring the pH of each test system with time. The chosen...

...INTRODUCTION Abstract Elemental sulfur deposition is becoming of a major concern in sour gas handling facilities due to corrosion occurring and blockage problems. Under certain conditions, the processing of sour gas can result in precipitation of elemental sulfur. The source of the precipitated...

... H₂S partial pressures in the absence and presence of elemental sulfur at 130° to 180°C. The CRAs included superaustenitic steels, nickel and nickel-cobalt base alloys and titanium alloys. CRAs with pitting resistance equivalents (PRE) of 39 and lower (including 28Cr32Ni) suffered in unbuffered brines...