Synthesis and laboratory testing of a novel calcium-phosphonate reverse micelle nanofluid for oilfield mineral scale control

Zhang, Ping; Dong, Song; Kan, Amy T.; Tomson, Mason B.

doi:10.1039/c6ra01228k

Cited by 16 publications

(31 citation statements)

References 45 publications

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“…Using high concentrations of inhibitor tends to produce self-associations in the bulk rather than adsorption on asphaltene, reducing their effectiveness [12,13]. More recently, attention has focused on increasing the effectiveness of inhibitors by increasing the adsorption of scale inhibitors on rock surface, hence increasing the lifetime of a squeeze treatment [14].These studies include: (i) mixing cations or Fe (II) ions with the scale inhibitor to provide better retention than using the inhibitor alone [15], (ii) adding pH modification chemicals to the inhibitor via a temperature dependent material such as urea, (iii) using mutual solvents (such as the small alkyl glycols) to change the rock wettability (more water wet) [16], and (iv) using kaolinite or other clay to enhance the inhibitor adsorption [17]. These studies, however, only showed limited reduction in the amount of inhibitors.…”

Section: Introductionmentioning

confidence: 99%

Controlled releases of asphaltene inhibitors by nanoemulsions

Alhreez

Wen

2018

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Asphaltene precipitation is usually responsible for many flow assurance problems such as wettability changes and pore clogging in reservoirs, fouling in wellbore tubings and production surface facilities. This study develops a novel approach by using nanoemulsions (NE) for controlled delivery and release of asphaltene inhibitors (AI) to minimize asphaltene precipitation with reduced AI amount. LUMiSizer was utilised to study the effectiveness and performance of controlled release by three cases on asphaltene sedimentation: i) strong organic acids (dodecyl benzene sulfonic acid, DBSA), ii) nanoemulsions (blank NEs), and iii) nanoemulsions loaded with DBSA (DBSA NEs). The experiments suggested that the optimum inhibitor concentration for completely stabilizing asphaltene were 4 vol. % for DBSA. This amount of inhibitor can be significantly reduced by ~ 20 times by using the DBSA NEs, and the release time can be greatly extended. A mechanistic understanding of the controlled release effect is proposed based on interfacial properties and electron microscopic studies, which is related to the hydrophilicity of DBSA and the strong intermolecular interactions among all DBSA NE's components and the asphaltene molecules.

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Section: Introductionmentioning

confidence: 99%

Controlled releases of asphaltene inhibitors by nanoemulsions

Alhreez

Wen

2018

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“…In addition to the conventional oilfield aqueous SIs, nonaqueous inhibitor formulations are beneficial for low water cut and water-sensitive oil production wells . Zhang et al synthesized for the first time a novel reverse micelle with attached inhibitor nanofluids, and they were proposed for use as nonaqueous SINPs for oilfield scale management . Ca-DTPMP SINPs were prepared in a water-in-oil microemulsion (reverse micelle) system, which afforded reverse micelle scale inhibitor nanoparticles (RMSINPs) capped anionic surfactant bis(2-ethylhexyl) sulfosuccinate sodium salt (AOT) and nonionic surfactant nonaethylene glycol monododecyl ether (C 12 (EO) 9 ), as shown in Figure .…”

Section: Nanomaterials For Scale Inhibitionmentioning

confidence: 99%

“…Schematic representation of the synthesis of Ca-DTPMP SINPs in isooctane-capped AOT and C 12 (EO) 9 surfactants. Reproduced with permission from ref , 2016, Copyright The Royal Society of Chemistry.…”

Section: Nanomaterials For Scale Inhibitionmentioning

confidence: 99%

Review of Nanotechnology Impacts on Oilfield Scale Management

Mady

Kelland

2020

ACS Appl. Nano Mater.

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Nanotechnology has grown rapidly in both research and applications over the past two decades including in the upstream petroleum industry. A recent hot area for studying nanotechnology has been oilfield scale management. The formation of oilfield scale deposits such as calcium carbonate and Group II sulfate scales in conduits and on equipment, both downhole and topside, can cause serious loss of hydrocarbon production and unwanted downtime. Scale management is expensive to the field operator, mostly due to downtime causing deferred or loss of production. Many types of nano-based materials and treatments have been developed to combat this problem, most of them containing one form or another of an organic scale inhibitor. In this review, we reviewed the various types of nanotechnologies that have been developed and include comparisons to conventional treatments where available. The nanotechnologies include nanoemulsions, nanoparticles, magnetic nanoparticles, polymer nanocomposites, carbon-based nanotubes, and other miscellaneous technologies. Several nanoproducts developed for squeeze treatments indicate improved squeeze lifetime compared to conventional squeeze treatments. Other potential benefits include improved thermal stability for high-temperature wells, reduced formation damage for water-sensitive wells, and environmental impact.

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“…Thus, it will be desirable to fabricate a non-aqueous SINM to be applied in low water-cut or water-sensitive wells for scale control. Therefore, a water-in-oil microemulsion (reverse micelle)-based Ca-DTPMP scale inhibitor nanomaterial fluid (nanofluid) was synthesis and tested at representative oilfield conditions (Zhang et al, 2016d). The synthesis of this reverse micelle nanofluid (RMNF) was achieved by mixing a calciumcontaining microemulsion fluid with another DTPMP-based microemulsion solution at ambient condition with isooctane being the continuous phase, as illustrated in Figure 11.…”

Section: Reverse Micelle Ca-dtpmp Nanofluidmentioning

confidence: 99%

“…(A) Breakthrough profiles of inhibitor reverse micelle with preflush solution as isooctane or 2 M NaCl. Reproduced fromZhang et al (2016d) with permission from The Royal Society of Chemistry. (B) Breakthrough curves of reverse micelle inhibitor nanomaterials at two different pore velocities of 5.73 and 2.85 cm min −1 in calcite medium with isooctane preflush (TE #1 and TE #2).…”

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confidence: 99%

Review of Synthesis and Evaluation of Inhibitor Nanomaterials for Oilfield Mineral Scale Control

Zhang

2020

Front. Chem.

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Oilfield flow assurance is the subject to study the impact on the flow of production fluids due to physicochemical changes in the production system. Mineral scale deposition is among the top 3 water-related flow assurance challenges in petroleum industry, particularly for offshore and shale operations. Scale deposition can lead to serious operational risks and significant financial loss. The most commonly adopted strategy in oilfield scale control is the deployment of chemical inhibitors. Although conventional chemical inhibitors are effective in inhibiting scale threat, they have the drawbacks of short transport distance and limited squeeze lifetime due to their intrinsic chemical properties. In the past decade, as an alternative to conventional chemical inhibition, research efforts have been made to prepare functional nanomaterials with different chemical compositions to overcome the drawbacks of conventional chemical inhibitors. These synthesized nanomaterials can serve as delivery vehicles to deploy inhibitors into the target location in the production system. These nanomaterials are reported to have multiple advantages over the conventional inhibitors in terms of transportability, controlled release, and functionality, evidenced by a series of experimental studies. This review presents an overview of scale inhibitor nanomaterial development and the current methods to synthesize and to evaluate these nanomaterials in a systematic and comprehensive manner. This review focuses on the chemistry principles and methodologies underlying inhibitor nanomaterial synthesis and also the chemical instrument and strategies in evaluating the physiochemical properties of these materials in terms of inhibition effectiveness, transportability, and inhibitor return. The scale inhibitor nanomaterials (SINMs) presented in this review exemplify the continuous development in our capabilities in adopting novel nanotechnology in combating actual engineering challenges in petroleum industry.

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Synthesis and laboratory testing of a novel calcium-phosphonate reverse micelle nanofluid for oilfield mineral scale control

Abstract: Developed calcium-phosphonate scale inhibitor reverse micelle nanomaterial for oilfield mineral scale control in low water cut or water sensitive wells.

Cited by 16 publications

References 45 publications

Controlled releases of asphaltene inhibitors by nanoemulsions

Controlled releases of asphaltene inhibitors by nanoemulsions

Review of Nanotechnology Impacts on Oilfield Scale Management

Review of Synthesis and Evaluation of Inhibitor Nanomaterials for Oilfield Mineral Scale Control

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