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51318-11538-Scaling-resistant coatings for high temperature sour gas service

This paper describes the development of novel coating materials and methods and evaluation of their effectiveness in preventing iron sulfide scale.

Product Number: 51318-11538-SG
Author: Lawrence Kool / Hui Zhu / Qilang Wang / Fakuen Chang
Publication Date: 2018
$0.00
$20.00
$20.00

Iron sulfide scaling is one of the primary causes of impairment of gas production in deep sour reservoirs. The wells are typically acid fractured and completed with carbon steel tubing. The combination of corrosion of tubes caused by H2S and iron dissolved from the tubes during the acidizing process at high temperature, though inhibited, leads to significant scaling issues. This scale in tubulars can cause significant production losses and restricts well access for surveillance and intervention operations. A fundamental solution, therefore, is required to prevent iron sulfide scale formation and deposition along downhole tubulars. One cost-effective approach to mitigating scaling in downhole tubing is to develop high-performance coatings for carbon steel tubing. This paper describes the development of novel coating materials and methods and evaluation of their effectiveness in preventing iron sulfide scale.

Key words: hydrogen sulfide, scaling, iron sulfide, heazelwoodite, ENP, coating, scale, sour gas well, electroless nickel, HTHP sour gas, contact angle on

Iron sulfide scaling is one of the primary causes of impairment of gas production in deep sour reservoirs. The wells are typically acid fractured and completed with carbon steel tubing. The combination of corrosion of tubes caused by H2S and iron dissolved from the tubes during the acidizing process at high temperature, though inhibited, leads to significant scaling issues. This scale in tubulars can cause significant production losses and restricts well access for surveillance and intervention operations. A fundamental solution, therefore, is required to prevent iron sulfide scale formation and deposition along downhole tubulars. One cost-effective approach to mitigating scaling in downhole tubing is to develop high-performance coatings for carbon steel tubing. This paper describes the development of novel coating materials and methods and evaluation of their effectiveness in preventing iron sulfide scale.

Key words: hydrogen sulfide, scaling, iron sulfide, heazelwoodite, ENP, coating, scale, sour gas well, electroless nickel, HTHP sour gas, contact angle on

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51318-11532-New Eco-Friendly Chemistry for Passivation of Galvanized Coatings

Product Number: 51318-11532-SG
Author: Mary Jane Felipe / Sidney Dunn / Timothy Underwood / Monty Pifer / Dave Fulmer
Publication Date: 2018
$20.00