Products tagged with 'downhole wells'

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Development of Corrosion Inhibitor for High Temperature Sweet Gas Wells

Product Number: 51324-20757-SG

Author: Ime Bassey Obot; Tao Chen; Ahmad A. Sorour; Qiwei Wang

Publication Date: 2024

$40.00

The corrosion of carbon steel downhole completion tubing at high temperature is one of the serious corrosion issues facing the oil and gas industry. Few corrosion inhibitor chemistries can protect downhole production tubing against corrosion, especially at high-temperature and high-pressure (HTHP) in high total dissolved solids (TDS) brine. The objective of this study was to develop a HTHP corrosion inhibitor abbreviated (NAM 9) for the protection of carbon steel at a temperature of up to 120 oC for possible application in sweet gas wells. The new corrosion inhibitor formulation (NAM 9) was evaluated using the linear polarization resistance (LPR) technique, batch corrosion testing (drop and drip) and autoclave corrosion test. The LPR result shows that 10 ppm of NAM 9 drastically reduces the corrosion rate of C1018 steel from 214.4 mpy (5.44 mm/y) to 3.28 mpy (0.08 mm/y) giving an inhibition efficiency of 98.47 % at 70 oC. The corrosion rate of the blank using autoclave corrosion testing at 120 oC was 250.6 mpy (6.36 mm/y) and 30.3 mpy (0.77 mm/y) in the presence of 500 ppm of NAM 9, respectively. The results indicate that NAM 9 is a promising high-temperature corrosion inhibitor for downhole production tubing used in gas wells.

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Effective Corrosion Inhibitor Formulation for Carbon Steel in Downhole Sweet Gas Wells

Product Number: 51323-19009-SG

Author: Ime Bassey Obot, Ahmad A. Sorour, Tao Chen, Qiwei Wang

Publication Date: 2023

$20.00

Corrosion of the internal surfaces of pipelines is one of the serious issues facing the oil and gas industry. Produced oil and gas always contain some water mixed with brines and contain varying amounts of carbon dioxide (sweet gas), hydrogen sulfide (sour gas) and organic acids1. All of these can affect the integrity of the low-carbon steel pipes used in the construction of downhole gas wells. CO2 gas, along with the high salt content of production water, causes serious corrosion on the internal walls of corrosion resistance alloys (CRAs) and steel pipelines used in downhole gas wells.

Products tagged with 'downhole wells'

Development of Corrosion Inhibitor for High Temperature Sweet Gas Wells

Effective Corrosion Inhibitor Formulation for Carbon Steel in Downhole Sweet Gas Wells

Association for Materials Protection and Performance