Challenges and advantages of using environmentally friendly kinetic gas hydrate inhibitors for flow assurance application: A comprehensive review

Farhadian, Abdolreza; Shadloo, Azam; Zhao, Xin; Pavelyev, Roman S.; Peyvandi, Kiana; Qiu, Zhengsong; Varfolomeev, Mikhail A.

doi:10.1016/j.fuel.2022.127055

Cited by 41 publications

(13 citation statements)

References 256 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Meanwhile, many efforts have been made for the performance improvement of LDHIs by chemical measures such as introduction of functional groups, increasing the number of attached peptides, and decorating with magnetic nanoparticles. Waterborne polymers containing polyethylene backbones such as poly( N -vinylpyrrolidone) (PVP) and poly( N -vinylcaprolactam) (PVCap) are recognized as KHIs and can provide good hydrate inhibition performance at low concentrations (∼1 wt%). , Synthesis based on end-group modification can further enhance the inhibition properties of these polymers. − As shown in Figure a, based on the polyvinyl caprolactam (PVCap), by introducing an ester group and a hydroxyl group into the molecular chain end of PVCap, a blocked modified inhibitor, Es-PVCap-OH, was synthesized . The methane gas hydrate formation results indicated that the synthesized inhibitor Es-PVCap-OH had better kinetic hydrate inhibitor performance and higher maximum subcooling than PVCap at the same concentration.…”

Section: Hydrate Blockage Prevention and Control Methodsmentioning

confidence: 99%

Flow Assurance of Hydrate Risk in Natural Gas/Oil Transportation: State-of-the-Art and Future Challenges

et al. 2023

View full text Add to dashboard Cite

Deepwater oil and gas development is extremely difficult and challenging. One of the most critical challenges stems from hydrate deposition, aggregation, and the eventual blocking of the deepwater oil and gas transportation system. The low-temperature and high-pressure environment in the deepwater oil and gas field causes the combination of gas molecules and water molecules to form hydrate, thus affects the hydrocarbon transportation. In this Perspective, to discuss the commonly faced safety issues for deepwater oil, gas, and gas hydrate development, the following three critical problems are comprehensively summarized and analyzed. First, the mechanisms of phase transition, aggregation, and blockage of the hydrate in the multiphase transport system have been investigated from the microscopic perspective to macroscopic characteristics. Second, based on different theoretical models, the algorithms are discussed to introduce an online monitoring technique for hydrate blockage, which can detect the safety risks and provide early warnings. Furthermore, for hydrate blockage prevention and control, the active methods based on chemical injection and the passive methods based on the modification of physicochemical properties of pipeline surfaces are reviewed. Finally, an outlook is provided for the future development of deepwater oil and gas and for the schemes to mitigate hydrate blockage.

show abstract

Section: Hydrate Blockage Prevention and Control Methodsmentioning

confidence: 99%

Flow Assurance of Hydrate Risk in Natural Gas/Oil Transportation: State-of-the-Art and Future Challenges

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Chemical, technological, and physical methods are used to prevent the formation of gas hydrates in downhole equipment (inter-tube space, tubing) and ground communications (oil collection system, separation, and stabilization units) [ 10 , 44 , 45 , 46 , 47 , 48 ]. Currently, the most widely used chemical methods are based on the use of gas hydrate formation inhibitors, whose action is based on changing the conditions of formation, inhibiting the nucleation and growth of gas hydrates, and preventing the formation of large agglomerations [ 2 , 6 , 9 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 ]. The use of hydrate formation inhibitors is a convenient and economical technology [ 48 ], the efficiency and reliability of which have been demonstrated for many years in industrial conditions [ 62 , 63 , 64 , 65 , 66 , 67 ].…”

Section: Prevention and Control Of Gas Hydrate Formation In Oil And G...mentioning

confidence: 99%

Polysaccharides Are Effective Inhibitors of Natural Gas Hydrate Formation

et al. 2023

View full text Add to dashboard Cite

This review covers the types and applications of chemical inhibitors of gas hydrate formation in the oil and gas industry. The main directions of the development of new types of highly effective and environmentally safe “green” kinetic hydrate inhibitors (KHIs) based on biopolymers are analyzed. The structure, physicochemical properties, efficiency of gas hydrate formation inhibition, and commercial prospects of polysaccharides in preventing and controlling the formation of gas hydrates are considered. The criteria for their selection, current experimental data, and the mechanism of inhibition are presented. Recent research in the development of cost-effective, efficient, and biodegradable KHIs for industrial applications in the oil and gas industry is also presented.

show abstract

“…Over the past several decades, gas hydrate inhibitors, which are chemical compounds preventing hydrate formation and agglomeration, have attracted a great deal of attention as an effective strategy for hydrate control in oil and gas production pipelines. 7,8 Thermodynamic hydrate inhibitors (THIs), such as methanol and glycols, are wellknown additives to completely inhibit gas hydrate formation. The mechanism action of THIs increases the pressure required to form gas hydrate at a certain temperature or decreases the temperature at a given pressure.…”

Section: Introductionmentioning

confidence: 99%

“…10 KHIs are soluble polymers in water and prevent gas hydrate formation for a certain period depending on the pressure−temperature conditions of the system by forming van der Waals interactions and strong hydrogen bonds with water molecules. 7,11,12 The N-vinyl lactam-based polymers like poly commercially developed KHIs. Generally, poor biodegradability, low cloud points, and inefficiency at subcooling temperatures less than 10 °C are the main concerns of most types of KHIs.…”

Section: Introductionmentioning

confidence: 99%

Environmentally Friendly Antiagglomerants: A Promising Solution for Gas Hydrate Plugging and Corrosion Risk Management in Oil and Gas Pipelines

Tang,

Chen,

Farhadian

et al. 2024

Energy Fuels

Self Cite

View full text Add to dashboard Cite

Gas hydrates pose a serious flow assurance challenge due to their ability to form, agglomerate, and block subsea flowlines on relatively fast time scales, leading to the loss of production and potential safety and environmental risks. The hydrate management strategy based on antiagglomerant inhibitors has gained significant interest in recent years, particularly in long tiebacks, maturing fields, and deep-water projects. However, most of the antiagglomerants used are not environmentally friendly, and compatibility issues with corrosion inhibitors also arise during coinjection operations. Here, a new oleic acid derivative was synthesized and used to develop two formulations (OADs) as green multifunctional flow assurance chemicals to control hydrate agglomeration and corrosion risks inside oil and gas pipelines. The experimental results showed that the OADs effectively inhibited methane hydrate growth and formed a transportable hydrate slurry in a water−paraffin mixture. Moreover, 0.1 wt % OADs completely suppressed the corrosion process of carbon steel in a CO 2 -and H 2 S-saturated solution by a protection of 99.4%. Computational studies also revealed that the adsorption of OADs on the hydrate surface increased its hydrophobicity, preventing the hydrate and water droplets from aggregating or clumping together. Additionally, OADs decreased the binding energy of iron and corrosive species up to 99.5%, and corrosive ions were almost no longer in direct contact with iron. The binding energy between the inhibitor and iron indicated the formation of a stable protective film by the OAD molecules on the steel surface to protect it against acidic corrosion. These results contribute to show the potential of oleic acid as a valuable green source to develop dual-purpose antiagglomerant hydrate and corrosion inhibitors for hydrate-related safety management.

show abstract

Challenges and advantages of using environmentally friendly kinetic gas hydrate inhibitors for flow assurance application: A comprehensive review

Cited by 41 publications

References 256 publications

Flow Assurance of Hydrate Risk in Natural Gas/Oil Transportation: State-of-the-Art and Future Challenges

Flow Assurance of Hydrate Risk in Natural Gas/Oil Transportation: State-of-the-Art and Future Challenges

Polysaccharides Are Effective Inhibitors of Natural Gas Hydrate Formation

Environmentally Friendly Antiagglomerants: A Promising Solution for Gas Hydrate Plugging and Corrosion Risk Management in Oil and Gas Pipelines

Contact Info

Product

Resources

About