Construction of fracturing fluid with excellent proppant transport capacity using low molecular weight hydrophobic association polymer and surfactant

Yang, Di; Yang, Bo; Ren, Mingchun; Liu, Yu; Cao, Haitao; Jiang, Zongjun; Zhang, Hao

doi:10.1016/j.molliq.2023.121546

Cited by 12 publications

(7 citation statements)

References 29 publications

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“…Yang et al [86] developed a fracturing fluid system known as LMPS, comprising a combination of a low molecular weight polymer (AAAM) and surfactant (SDBS). At a concentration of 0.5 wt%, the aqueous solution of LMPS exhibited a viscosity of 0.072 Pa•s and demonstrated an excellent suspension capability for 20/40 ceramic proppants.…”

Section: Synergistic Application With Surfactantsmentioning

confidence: 99%

A Review of Weak Gel Fracturing Fluids for Deep Shale Gas Reservoirs

Yang,

Yu,

Zhao

et al. 2024

Gels

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Low-viscosity slickwater fracturing fluids are a crucial technology for the commercial development of shallow shale gas. However, in deep shale gas formations with high pressure, a higher sand concentration is required to support fractures. Linear gel fracturing fluids and crosslinked gel fracturing fluids have a strong sand-carrying capacity, but the drag reduction effect is poor, and it needs to be pre-prepared to decrease the fracturing cost. Slick water fracturing fluids have a strong drag reduction effect and low cost, but their sand-carrying capacity is poor and the fracturing fluid sand ratio is low. The research and development of viscous slick water fracturing fluids solves this problem. It can be switched on-line between a low-viscosity slick water fracturing fluid and high-viscosity weak gel fracturing fluid, which significantly reduces the cost of single-well fracturing. A polyacrylamide drag reducer is the core additive of slick water fracturing fluids. By adjusting its concentration, the control of the on-line viscosity of fracturing fluid can be realized, that is, ‘low viscosity for drag reduction, high viscosity for sand-carrying’. Therefore, this article introduces the research and application status of a linear gel fracturing fluid, crosslinked gel fracturing fluid, and slick water fracturing fluid for deep shale gas reservoirs, and focuses on the research status of a viscous slick water fracturing fluid and viscosity-controllable polyacrylamide drag reducer, with the aim of providing valuable insights for the research on water-based fracturing fluids in the stimulation of deep shale gas reservoirs.

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Section: Synergistic Application With Surfactantsmentioning

confidence: 99%

A Review of Weak Gel Fracturing Fluids for Deep Shale Gas Reservoirs

Yang,

Yu,

Zhao

et al. 2024

Gels

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“…6−9 Slick water fracturing, as the main system supporting volumetric fracturing technology, 10−12 is capable of improving the pump injection volume and reducing the friction of a pipe wall. 13 Therein, the polyacrylamide (PAMs) drag reducer is the most crucial additive in slick water fracturing for enhancing the reservoir reconstruction result. 14,15 The PAM drag reducer can be divided into powder and emulsion types; among them, PAM powders are faced with dissolution problems, resulting in a low drag reduction efficiency.…”

Section: ■ Introductionmentioning

confidence: 99%

“…In recent decades, the exploitation of unconventional reservoirs with abundant resources has drawn extensive attention, resulting from the rapid innovation of horizontal drilling and fracturing technology. Among unconventional reservoirs, tight oil reservoirs have become crucial substitute petroleum resources for covering the resource shortage of conventional oil reservoirs. − Practically, it has been reported that volumetric fracturing technology offers advantages in reservoir reconstruction, improving the flow conductivity and enhancing the extraction efficiency of petroleum resources. − Slick water fracturing, as the main system supporting volumetric fracturing technology, − is capable of improving the pump injection volume and reducing the friction of a pipe wall . Therein, the polyacrylamide (PAMs) drag reducer is the most crucial additive in slick water fracturing for enhancing the reservoir reconstruction result. , …”

Section: Introductionmentioning

confidence: 99%

Insights into the Efficient Release of the Polyacrylamide Drag Reducer via a pH-Responsive Inverse Polymer Emulsion

Sun,

Qing,

et al. 2024

Langmuir

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The enormous demand for petroleum consumption has resulted in the shortage of fossil resources, prompting the need to explore unconventional reservoirs. Polyacrylamide emulsion drag reducers are capable of inhibiting the turbulence of fracturing fluids for enhancing the reservoir stimulation results, but the poor dissolution efficiency of polyacrylamide emulsion drag reducers is the primary limitation to their large-scale application. Here, a pH-responsive ionic liquid surfactant, oleic acid/ cyclohexanediamine (HOA/HMDA), is synthesized by using oleic acid (HOA) and cyclohexanediamine (HMDA). HOA/HMDA shows a remarkable pH-responsive behavior due to the pH-induced deconstruction of the HOA/HMDA structure. Interestingly, the HOA/HMDA-stabilized monomer emulsion exhibits an obvious pH-induced emulsion structure transformation behavior. In addition, the HOA/HMDA-stabilized monomer emulsion possesses excellent dynamic and storage stability, supporting the inverse emulsion polymerization of the polymer P(AM/AMPS/AA). The obtained P(AM/AMPS/AA) polymer inverse emulsions maintained stability for 30 days. Our finding proposes that the structure of the P(AM/AMPS/AA) polymer inverse emulsions changes with pH stimulation, which is capable of facilitating the release of polymers. P(AM/AMPS/AA) is released from the P(AM/ AMPS/AA) polymer inverse emulsions within 30 s at a pH value of 12.06, along with a drag reduction rate of 62.54%. Obviously, the HOA/HMDA-stabilized P(AM/AMPS/AA) polymer inverse emulsions eliminate the contradiction between the stability and release of polyacrylamide emulsion drag reducers, which is promising for meeting the demands of reservoir stimulation.

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“…Enhanced oil recovery has become a critical technique for maximizing hydrocarbon production, particularly in mature oil fields where natural pressure declines. In this context, natural surfactants serve as indispensable agents in enhanced oil recovery (EOR) processes. − Surfactants injected into the reservoir act as emulsifiers, breaking down the oil–water interface and facilitating the mobilization and extraction of trapped oil. , This results in improved sweep efficiency and a more comprehensive recovery of oil reserves, making natural surfactants a valuable tool in extending the life of oil fields and increasing overall production. , …”

Section: Introductionmentioning

confidence: 99%

“…14−18 Surfactants injected into the reservoir act as emulsifiers, breaking down the oil−water interface and facilitating the mobilization and extraction of trapped oil. 19,20 This results in improved sweep efficiency and a more comprehensive recovery of oil reserves, making natural surfactants a valuable tool in extending the life of oil fields and increasing overall production. 21,22 Furthermore, drilling operations face challenges such as wellbore instability and formation damage, necessitating stable drilling fluids.…”

Section: Introductionmentioning

confidence: 99%

Ecofriendly Natural Surfactants in the Oil and Gas Industry: A Comprehensive Review

Abdurrahman,

Kamal,

Ramadhan

et al. 2023

ACS Omega

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The use of different types of chemicals in upstream oilfield operations is critical for optimizing the different operations involved in hydrocarbon exploration and production. Surfactants are a type chemical that are applied in various upstream operations, such as drilling, fracturing, and enhanced oil recovery. However, due to their nonbiodegradability and toxicity, the use of synthetic surfactants has raised environmental concerns. Natural surfactants have emerged because of the hunt for sustainable and environmentally suitable substitutes. This Review discusses the role of natural surfactants in upstream operations as well as their benefits and drawbacks. The Review discusses the basic characteristics of surfactants, their classification, and the variables that affect their performance. Finally, the Review examines the possible applications of natural surfactants in the upstream oil sector and identifies areas that require further research.

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Construction of fracturing fluid with excellent proppant transport capacity using low molecular weight hydrophobic association polymer and surfactant

Cited by 12 publications

References 29 publications

A Review of Weak Gel Fracturing Fluids for Deep Shale Gas Reservoirs

A Review of Weak Gel Fracturing Fluids for Deep Shale Gas Reservoirs

Insights into the Efficient Release of the Polyacrylamide Drag Reducer via a pH-Responsive Inverse Polymer Emulsion

Ecofriendly Natural Surfactants in the Oil and Gas Industry: A Comprehensive Review

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