Automatic optimization of oilfield scale inhibitor squeeze treatment designs

Vazquez, Oscar; Fursov, Ilya; Mackay, Eric James

doi:10.1016/j.petrol.2016.06.025

Cited by 48 publications

(19 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The treatment of oil wells with scale inhibitors has been undertaken by a number of techniques. Continuous injection, batch treatment, and squeeze treatment (Graham et al 1998;Sorbie et al 1994;Sorbie and Gdanski 2005;Vazquez et al 2016a) are three main methods which have been applied in oil well treatments. Squeeze treatment is the predominant method in the oil and gas industry.…”

Section: Scale Inhibitor Treatment Methodsmentioning

confidence: 99%

“…The over-flush stage is followed by a shut-in stage which is a soak period that enables the chemicals to be retained at a higher concentration. After over-flush and shut-in, the oil well production is resumed and the entrainment of the inhibitors in the produced water protects the producing wellbore and downhole equipment from mineral scale formation (Vazquez et al 2016a).…”

Section: Squeeze Treatmentmentioning

confidence: 99%

“…1. The scale inhibitor should leach in such a way that its concentration in the produced water phase is at or above the minimum inhibition concentration (MIC) needed to prevent scaling; more specifically 1-50 ppm Vazquez et al 2016a), as shown in Fig. 2.…”

Section: Squeeze Treatmentmentioning

confidence: 99%

“…The adsorption isotherms for squeeze treatment are commonly explained in terms of Langmuir and Freundlich isotherms (Shuler 1993;Sorbie and Gdanski 2005). The retention of an inhibitor in the formation by the adsorption process is said to be most effective in sandstone formations (Vazquez et al 2016a). Treatment lifetimes can be from 3 to 6 months.…”

Section: Adsorption and Precipitation (Phase Separation)mentioning

confidence: 99%

“…On the other hand, the chemical inhibitor precipitates (or phase separates) within the pores in the formation onto the rock surfaces for a precipitation squeeze Sorbie and Gdanski 2005;Vazquez et al 2016a). In this technique, the scale inhibitor reacts or is reacted to form an insoluble salt complex which precipitates in the pores in the formation rock.…”

Section: Adsorption and Precipitation (Phase Separation)mentioning

confidence: 99%

See 4 more Smart Citations

State of the art of synthetic threshold scale inhibitors for mineral scaling in the petroleum industry: a review

2019

View full text Add to dashboard Cite

Inorganic scale deposits are a major water-related problem encountered in producing oil and gas wells. The harshness of scale deposits is dependent on the field operating conditions. Scale deposits can vary from mild scaling tendencies to extreme. In general, the scale deposit will cause a reduction in formation pores, declining productivity and eventually blockage of the wellbore and hence unexpected downtime if it is allowed to persevere. To overcome this, the productivity of an oil and gas well is ensured by handling scale deposits via removal or prevention methods. Scale prevention is the best and cost-effective method for handling scale deposits that ensures production continuity. Inhibition through "threshold" scale inhibitor treatment is the most common method that is proven to prevent or reduce likely deposits. This paper examines the art of synthetic scale inhibitors, in particular, threshold scale inhibitors in oil and gas production. It discusses the chemistry of those inhibitors, inhibition mechanisms, treatment methods and key properties for their applications. It also highlights the chemistry of the synthetic routes often used to produce them in the laboratory and/or industry. Finally, it highlights the environmental concerns for the applicability of threshold scale inhibitors.

show abstract

Section: Scale Inhibitor Treatment Methodsmentioning

confidence: 99%

Section: Squeeze Treatmentmentioning

confidence: 99%

Section: Squeeze Treatmentmentioning

confidence: 99%

Section: Adsorption and Precipitation (Phase Separation)mentioning

confidence: 99%

Section: Adsorption and Precipitation (Phase Separation)mentioning

confidence: 99%

See 3 more Smart Citations

State of the art of synthetic threshold scale inhibitors for mineral scaling in the petroleum industry: a review

2019

View full text Add to dashboard Cite

show abstract

A review of scale inhibitor methods during modified smart water injection

Ardakani,

Hosseini,

Kazemzadeh

2024

Can J Chem Eng

View full text Add to dashboard Cite

Enhancing oil recovery (EOR) through water flooding methods, including smart water injection, low salinity water injection, polymer injection, and surfactant injection has become a pivotal strategy for enhancing productivity. Despite their promising outcomes, these methods often encounter challenges such as scaling formation and deposition, impacting reservoir permeability and production rates. A comprehensive understanding of scaling formation is crucial for effective implementation of these methods. This article explores various scaling types prevalent in the field, examining key parameters (temperature, pressure, and pH) that influence scaling formation. Additionally, it presents a diverse range of inhibitors employing both chemical and mechanical methods to mitigate and prevent scaling, thus safeguarding reservoir performance. The efficiency of inhibitors is scrutinized concerning chemical composition and performance maintenance under different temperature and pressure conditions. This study serves as a valuable resource for researchers, engineers, and industry experts involved in the oil industry and reservoir management. By elucidating scaling mechanisms, delineating consequences, and offering extensive solutions, it enhances comprehension and provides a foundation for improving oil recovery strategies. The findings of this study contribute to a better understanding of scaling mechanisms, providing insights that can be applied to optimize oil recovery processes, mitigate reservoir challenges, and improve overall reservoir management strategies.

show abstract

Scale Management

Vazquez

2023

Modelling Oilfield Scale Squeeze Treatments

View full text Add to dashboard Cite

Automatic optimization of oilfield scale inhibitor squeeze treatment designs

Cited by 48 publications

References 16 publications

State of the art of synthetic threshold scale inhibitors for mineral scaling in the petroleum industry: a review

State of the art of synthetic threshold scale inhibitors for mineral scaling in the petroleum industry: a review

A review of scale inhibitor methods during modified smart water injection

Scale Management

Contact Info

Product

Resources

About