... The prediction and control of metal loss corrosion by CO 2 has been one of the big challenges for the oil and gas industry. Researchers working on the prediction models have known that the prediction of CO 2 metal loss corrosion is like solving a mathematical equation with tens of interacting...

... ppb of oxygen) and deaerated conditions (50 ppb of oxygen) and the presence of 300 ppb of chlorine were applied to the assumed exchange current densities (i o ). Neutral (pH 7) and acid (pH 4) conditions (considering the presence of CO 2 ) were also assumed to be at room temperature and pressure...

... Abstract Flexible pipes used in oil and gas production are composed of densely packed steel wires enclosed in an annulus confined by inner and outer thermoplastic sheaths (pressure barriers). Hydrocarbons, water, CO 2 and H 2 S from the bore diffuse through the inner sheath and form...

... performance Brine corrosion rate procedure synthetic field brine electrode Subsurface Corrosion H2S management concentration generic quaternary ammonium inhibitor phosphate ester formulation co 2 ppmv Introduction Safe and efficient production relies upon the integrity of oilfield...

... extensively than other models. However, it does not consider the presence of H 2 S, and it is thus recommended to be used only for conditions where the ratio of the partial pressure of CO 2 and H 2 S is larger than 20 and only if the partial pressure of H 2 S is less than 0.5 bara ( Olsen 2003 ). Here...

... with corrosion processes. Corrosion is exacerbated by the extreme conditions typically found in oil wells, characterized by high pressures and temperatures, lack of oxygen and presence of CO 2 . These aggressive environment challenge and limit the lifetime of low carbon steel tubings, which are typically used...

... in the presence of HAc and MEG in CO 2 saturated environment were investigated at 25°C and 80°C using 3.5% wt. NaCl solution in a semi-circulated loop setup. Weight loss and electrochemical measurements using linear polarization resistance (LPR) were used to evaluate the efficiencies of two corrosion inhibitor...

... is to simulate realistic downhole and reservoir brine composition and conditions, which includes a complex matrix of Na + , K + , Mg 2+ , Ca 2+ , Sr 2+ , Ba 2+ , Fe 2+ , HCO 3 – , CO 2(aq) , and others. Just as crucial, dissolved oxygen concentration should be controlled at reservoir conditions which...

... Standard linear polarization resistance (LPR) bubble tests ( Fig. 1 ) were conducted to assess performance against BOL corrosion in wet-gas pipelines. These tests were conducted in reverse osmosis (RO) water containing 1,000 mg/l KCl, at 70 °C over an 18-hour test period with continuous 100% CO 2...

... hydraulic fracturing Upstream Oil & Gas co 2 reaction flowline corrosion Subsurface Corrosion corrosion inhibitor nipple society of petroleum engineers materials and corrosion well integrity corrosion rate partial pressure horizontal well deposit Pipeline Corrosion riser...

... inhibitor flow rate selection carbon steel mmpy Inhibition corrosion probe laboratory testing ka-15 flowline co 2 shear stress Introduction The flowline associated with producing well KA-15 in the Greater Kittiwake Area has been historically prone to spool change-outs, caused by excessive...

... Abstract Testing of inhibitors for CO 2 -corrosion at elevated temperatures is often performed so as to delay or avoid formation of a protective iron carbonate layer. Inhibitor performance in the presence of FeCO 3 (partly or fully covering the steel surface), however, also deserves attention...

... than predicted by most carbon dioxide (CO 2 ) corrosion prediction models. materials and corrosion flowline corrosion Subsurface Corrosion operational experience Pipeline Corrosion Production Chemistry Upstream Oil & Gas oilfield chemistry well integrity corrosion rate iron...

... corrosion inhibitor mechanism Frenier injection society of petroleum engineers physisorption chemistry corrosion rate application formulation inhibitor formulation inhibitor Inhibition Houston inhibitor film TLC liquid co 2 gel foam concentration Introduction Pipelines...

.... In general, the main believed reason behind the corrosion phenomena is the presence of hydrogen sulfide H2S with formation fluids which forms an acidic solution if formation water exists that causes induced pitting and continuous metal loss. If carbon dioxide CO 2 is present too, it combines with water...

... up, potential problems for corrosion could come up including scaling as it is indicated by Langelier Saturation index in the produced water. upstream oil & gas co 2 operation expenditure schlumberger casabe field integrity management plan producer well waterflooding corrosion...

... effects of erosivity, temperature, and oil phase were successfully fitted to erosion-corrosion data. Inhibitor adsorption isotherms, for both sand-free and sand production conditions, were integrated into a mechanistic model for prediction of CO 2 corrosion rates as a function of inhibitor concentration...

... Abstract The south pars gas refinery, phases 2 & 3 was designed for the processing of 2000 MMSCFD of gas from the south pars gas field. The inlet sour gas, treated by the four amine units, contains 0.6% volume H 2 S and 2.5% CO 2 . The objective of the treatment is to selectively remove all...

... stainless steels, 304L and 316L in aerated 3.5% NaCl and a CO 2 -saturated oilfield brine solution. Electrochemical measurements were made using a three-electrode electrochemical set up using an Ag/AgCl reference electrode and a platinum counter electrode. The results showed that breakdown potentials...

... Abstract CO 2 gas has low viscosity, flows very freely and is corrosive. This paper presents two innovative and economical anti-corrosion techniques of injecting (flooding with) CO 2 under conditions of high temperature, high pressure and the CO 2 cause corrosion. The down hole packer...