Corrosion-Inhibitor Design for Compatibility with Acid-Gelling Polymers

Cassidy, Juanita; Kiser, Chad; Tucker, R. C.

doi:10.2118/141435-ms

Cited by 5 publications

(1 citation statement)

References 9 publications

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“…A number of patents highlight the versatile application of this class of molecules, for example, in the protection of skin against the harmful effects of sunlight (erythema) on human skin and warm-blooded animals . A recent patent highlights the importance of a mixture of N- benzylideneaniline compounds with aqueous acid solution being used as corrosion inhibitor …”

Section: Introduction and Aim Of Studymentioning

confidence: 99%

Structural Investigation of Weak Intermolecular Interactions in Fluorine Substituted Isomeric N-Benzylideneanilines

Kaur

Panini

Chopra

et al. 2012

Crystal Growth & Design

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The study of the influence of aromatic C–F group in directing crystal packing is an important area of current research. The role of the aromatic C–F group in the formation of weak intermolecular interactions in the absence of strong hydrogen bond donors and acceptors has been analyzed in a series of 15 newly synthesized fluorine substituted (mono- and di-) isomeric N-benzylideneanilines. It was observed that five compounds (out of a total number of 15) were liquids at room temperature, while others have low melting points (<60 °C). In situ crystallization, using an optical heating and crystallization device (OHCD), has been used to crystallize and determine the crystal structures of three out of five compounds which were found to be liquids at 25 °C. A detailed investigation of the molecular conformation and the crystal packing in these compounds reveals that the presence of organic fluorine acts as a significant contributor in the construction of various supramolecular synthons, essentially using a variety of C–H···F intermolecular interactions. These have been found to generate different three-dimensional arrangements of molecules in the crystalline framework. In order to realize the stabilizing influence exerted by such weak interactions, intermolecular C–H···F interaction energies have been calculated using Firefly to quantify the strength of such interactions. Lattice energy calculations have been performed and the individual energies, namely, the Coulombic, polarization, dispersion, and repulsive contributions to the lattice energy have been determined using the CLP program. In addition to these, theoretical calculations have been performed at the density functional theory level, and the experimental geometry has been compared with the optimized geometry to highlight the importance of molecular conformation in the solid and gas phase. It is of interest to note that stabilization resulting from the presence of C–H···F interactions, albeit less, is not negligible and does contribute toward crystal packing.

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Section: Introduction and Aim Of Studymentioning

confidence: 99%

Structural Investigation of Weak Intermolecular Interactions in Fluorine Substituted Isomeric N-Benzylideneanilines

Kaur

Panini

Chopra

et al. 2012

Crystal Growth & Design

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Study of Corrosion in Ground Gathering Pipeline Networks and Anti-Corrosion Method in Tazhong-1 Gas Field

Tang¹,

Zou²,

Tian³

et al. 2012

Icptt 2012

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Formation Damage and Compatibility Issues Associated with Use of Corrosion Inhibitors in Well Acidizing - A Review

Kudrashou

Nasr‐El‐Din

2019

Day 2 Wed, March 27, 2019

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Corrosion inhibitors are active chemical species that interact with other fluids and reservoir rock. This interaction affects the performance of some additives. It can also lead to formation damage. Finally, corrosion inhibitors change physical properties of the acid used in treatment. The objective of this paper is to discuss (1) the interactions between corrosion inhibitors and other additives used in well acidizing, and (2) formation damage mechanisms associated with corrosion inhibitors. This paper reviews research work and provides the description of the interactions of corrosion inhibitors with additives, acids, and reservoir rock. The reported here results are summarized based on the previously published experimental results and field cases. Analysis of these results provides greater understanding of the interactions between corrosion inhibitors and other stimulation fluids. Observed trends can be useful for compatibility analysis and design of well stimulation treatemnts. Comprehensive analysis of the literature revealed the most common problems with the application of corrosion inhibitors in acidizing treatments. It was found that performance of viscoelastic surfactants, polyacrylamide-based polymers, hydrate inhibitors, and hydrochloric acid can be negatively affected by corrosion inhibitors. Also, it was concluded that biocides, anionic surfactants, antisludging agents, mutual solvents and short chain alcohols reduce the effectiveness of corrosion inhibitors. Finally, it is clear that a low concentration of corrosion inhibitors results in damage of tubulars. However, excessive use of corrosion inhibitors can interfere with the reservoir rock and cause wettability changes. These compatibility issues may cause formation damage, obscure the acid reaction, and can lead to failure of an acidizing treatment. This work summarizes the issues with use of corrosion inhibitors in well stimulation applications. Chemical components and formulation of corrosion inhibitors are reviewed and summarized. This work reveals the scope of the problems associated with implementation of corrosion inhibitors and other additives used in acidizing of sandstone and carbonate reservoirs.

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Corrosion-Inhibitor Design for Compatibility with Acid-Gelling Polymers

Cited by 5 publications

References 9 publications

Structural Investigation of Weak Intermolecular Interactions in Fluorine Substituted Isomeric N-Benzylideneanilines

Structural Investigation of Weak Intermolecular Interactions in Fluorine Substituted Isomeric N-Benzylideneanilines

Study of Corrosion in Ground Gathering Pipeline Networks and Anti-Corrosion Method in Tazhong-1 Gas Field

Formation Damage and Compatibility Issues Associated with Use of Corrosion Inhibitors in Well Acidizing - A Review

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