Hooked gemini viscoelastic surfactant based on linolenic oil for oil recovery and its various gel-breaking mechanisms

Wang, Chen; Qiu, Guanjun; Long, Xueli; Wang, Tao; Zhang, Xing; Liang, Lidong; Bai, Jianguang; Li, Zhigang; Qiu, Liewei; Yang, Xiaoguang; Zhang, Kang

doi:10.1016/j.petrol.2021.108717

Cited by 8 publications

(8 citation statements)

References 28 publications

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“…Recently, Wang et al designed a hooked gemini viscoelastic surfactant (HGVES), with a CMC of 7.69 × 10 –5 mol/mL that displayed a good viscoelastic behavior and fracturing performance. With a similar rheological characteristics like pseudoplastic fluids, 2 wt % of HGVES showed a core damage permeability of 5.35% without leaving behind any residue during the gel breaking process …”

Section: Introductionmentioning

confidence: 83%

“…With a similar rheological characteristics like pseudoplastic fluids, 2 wt % of HGVES showed a core damage permeability of 5.35% without leaving behind any residue during the gel breaking process. 46 It has been well understood that sulfobetaine and hydroxyl sulfobetaine act as stabilizers in self-diverting acids. The existence of a sulfonate pattern is believed to be associated with the formation of wormlike micelles and can offer lower concentrations required for CMC.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Synthesis and Properties of Exceptionally Thermo-Switchable Viscoelastic Responsive Zwitterionic Gemini Surfactants in Highly Saline Water

2022

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Viscoelastic surfactants (VESs) have significant importance for stimulation of low-permeable reservoirs and acid diversion applications to effectively enhance hydrocarbon productivity. VESs offer lower residues, complete gel production, and lower formation damage that make them suitable candidates for hydraulic fracturing applications. In this research work, the synthesis of two new zwitterionic gemini surfactants 1 and 2 together with previously known amidosulfobutaine (C 18 AMP3SB) has been achieved. Evaluation of viscosity behavior of neat surfactants in CaCl 2 solutions at varied temperatures and shear rates did not show any upsurge in their viscosities. Nevertheless, a mixture of surfactants 1 and 2 in combination with C 18 AMP3SB displayed a significant increase in viscosity, transforming the solution into a highly viscous gel. At a fixed shear rate of 35 s −1 and under different temperatures, solutions of the mixture of surfactants 1 and C 18 AMP3SB displayed viscosities ranging from 4.34 to 354.3 cPs (81-fold enhancement). Likewise, viscosities of formulations based on mixing 2 and C 18 AMP3SB under identical experimental conditions ranged from 3.89 to 290 cPs (74-fold enhancement). The viscofying stability tests at 90 °C at a shear rate of 35 s −1 of mixed surfactant formulations revealed no appreciable change in their viscosities for up to 1 h. Moreover, temperature-dependent experiments suggested an increase in the viscosity with an increase in temperature. Thermogravimetric analysis revealed that these surfactants are thermally stable, with no appreciable loss of mass up to 300 °C. The viscoelastic properties of these surfactants suggest their potential and utility in well stimulation for enhanced oil recovery.

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Section: Introductionmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

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Synthesis and Properties of Exceptionally Thermo-Switchable Viscoelastic Responsive Zwitterionic Gemini Surfactants in Highly Saline Water

2022

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“…Then, the micelles break up into smaller aggregates. As a result, the viscosity of the composition decreases sharply [ 71 ]. This process runs in parallel with another: a long hydrocarbon radical is most often present in the VES molecule, which has an affinity for petroleum hydrocarbons.…”

Section: Hydraulic Fracturing Gelsmentioning

confidence: 99%

Application of Hydrogels and Hydrocarbon-Based Gels in Oil Production Processes and Well Drilling

Telin,

Lenchenkova,

Yakubov

et al. 2023

Gels

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The use of gels in oil production processes has become a regular practice in oilfield operations and is constantly developing in all oil-producing countries of the world, as evidenced by the growth of publications and patent activity on this topic. Many oil production processes, such as hydraulic fracturing, conformance control, water, and gas shutoff, cannot be imagined without the use of gel technologies. Inorganic, organic, and hybrid gels are used, as well as foams, gel-forming, and gel-dispersed systems. The possibility of a broad control of structural and mechanical properties, thermal stability, and shear resistance by introducing microscale and nanoscale additives made hydrogels and hydrocarbon-based gels indispensable tools for oil engineers.

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“…To process the obtained values of effective viscosity in a wide range of speeds, the Carreau fluid model was used [37,38], which is expressed by the following formula:…”

Section: Effective Viscosity Studymentioning

confidence: 99%

Experimental Investigation of Hydraulic Fracturing Fluid Based on Pseudo Gemini Surfactant with Polysaccharide Addition

Silin,

Magadova,

Poteshkina

et al. 2023

Gels

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In the last decade, hydrogels for hydraulic fracturing based on viscoelastic surfactants have been actively studied. Interest in these systems is justified by their unique qualities: good viscoelasticity and the ability to form stable suspensions of proppant or sand, destruction without the formation of bridging agents, hydrophobization of the rock surface and metal of technological equipment, as well as oil-cleaning properties. These qualities are most often provided by a minimum set of components—a surfactant and an electrolyte. However, the absence of a polymer limits the use of these gels in formations where fluid leakoff is possible. In this article, a liquid was studied, based on a pseudo gemini surfactant (PGVES) with the addition of a water-soluble polysaccharide. The objects of study were selected based on the assumption of interactions between PGVES and the polymer; interactions which favorably influence the technological characteristics of the fracturing fluid. To confirm the hypothesis, rheological studies were carried out. These included rotational viscometry and oscillatory studies at various temperatures. The settling velocity of particles of various proppant fractions was studied and tests were carried out to assess fluid leakoff. The performed experiments show an improvement in the characteristics of the PGVES-based gel under the influence of the polysaccharide. In particular, the rheological properties increase significantly, the stability of proppant suspensions improves, and the fluid leakoff of systems decreases, all of which expands the possibility of using these fracturing fluids and makes this area of experimentation promising.

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Hooked gemini viscoelastic surfactant based on linolenic oil for oil recovery and its various gel-breaking mechanisms

Cited by 8 publications

References 28 publications

Synthesis and Properties of Exceptionally Thermo-Switchable Viscoelastic Responsive Zwitterionic Gemini Surfactants in Highly Saline Water

Synthesis and Properties of Exceptionally Thermo-Switchable Viscoelastic Responsive Zwitterionic Gemini Surfactants in Highly Saline Water

Application of Hydrogels and Hydrocarbon-Based Gels in Oil Production Processes and Well Drilling

Experimental Investigation of Hydraulic Fracturing Fluid Based on Pseudo Gemini Surfactant with Polysaccharide Addition

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