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Data · dataset · 2026

Development and Performance Evaluation of the Nanoparticle-Enhanced Seawater-Based High-Temperature-Resistant Guar Gum Fracturing Fluid System

Listed in ZivaHub and Deakin Research Online and DMU Figshare — shown once because both records carry DOI 10.1021/acsapm.6c02597.s001

To address the problems of low viscosity retention, and insufficient sand-carrying capacity for seawater-based fracturing fluids in deepwater high-temperature reservoirs, this study enhanced the fracturing fluid by adding modified nano-SiO<sub>2</sub> (M-NS).

Description

A seawater-based, high-temperature-resistant fracturing fluid system was constructed from M-NS and carboxymethyl hydroxypropyl guar gum (CMHPG). The results showed that 3-aminopropyltriethoxysilane (APTES) modification improved, to a certain extent, the dispersion stability and interfacial compatibility of nano-SiO<sub>2</sub> (NS) in the seawater-based CMHPG solution.

The optimal formulation of the M-NS-enhanced system was 0.4 wt % CMHPG, 0.5 wt % organic zirconium crosslinker, 0.08 wt % M-NS, 0.1 wt % APS, and 0.05 wt % SDS. After shearing at 200 °C and 100 s<sup>–1</sup> for 2 h, the retained viscosity was 60.03 mPa·s, which was 1.42 times that of the conventional system. At 95 °C, no proppant settling was observed at sand ratios of 10%, 20%, and 30%.

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In addition, the fracturing fluid exhibited favorable breaking and flowback performance, dynamic leak off control performance, and formation-damage performance. Investigation of the high-temperature-resistance mechanism revealed that the M-NS-enhanced fracturing fluid system demonstrated excellent viscosity recovery and nonlinear elastic response under large strain. This improvement is attributed to the formation of physical crosslinking through hydrogen bonding between the −NH<sub>2</sub> on the M-NS surface and the hydroxyl and carboxymethyl groups on the polymer chains.

This physical crosslinking mechanism likely synergizes with the organic zirconium chemical crosslinking to construct a dual-network structure. Moreover, M-NS is uniformly dispersed in the CMHPG base fluid, acting as rigid nucleation points and a skeleton. Consequently, the network skeleton of the enhanced gel is significantly thickened, and the structure of the gel is enhanced.

This study provides a seawater-based, high-temperature-resistant guar gum fracturing fluid system for deepwater and ultra-deepwater high-temperature reservoirs, demonstrating significant engineering application potential.

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Catalogue records · 1

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Provenance · 3 source records, 20 field assertions
SourceKeyLast seenRaw
ZivaHuboai:figshare.com:article/340365815 d agoJSON v1
Deakin Research Onlineoai:figshare.com:article/340365815 d agoJSON v1
DMU Figshareoai:figshare.com:article/340365815 d agoJSON v1
FieldAssertionExtractorEvidence
access_levelsource · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
concepts[field].anzsrc:field:460611mapping · zivahub uct ac zavocabulary-mapper@1.0.0keywords['performance evaluation']
concepts[field].anzsrc:field:460611mapping · figshare dmu ac ukvocabulary-mapper@1.0.0keywords['performance evaluation']
concepts[field].anzsrc:field:460611mapping · dro deakin edu auvocabulary-mapper@1.0.0keywords['performance evaluation']
concepts[field].anzsrc:group:3103mapping · zivahub uct ac zavocabulary-mapper@1.0.0keywords['Ecology']
concepts[field].anzsrc:group:3103mapping · dro deakin edu auvocabulary-mapper@1.0.0keywords['Ecology']
concepts[field].anzsrc:group:3103mapping · figshare dmu ac ukvocabulary-mapper@1.0.0keywords['Ecology']
concepts[field].local:field:chemistrymapping · dro deakin edu auconnector:dro_deakin_edu_au@1.0.0
concepts[field].local:field:chemistrymapping · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
concepts[field].local:field:chemistrymapping · figshare dmu ac ukconnector:figshare_dmu_ac_uk@1.0.0
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concepts[field].local:field:earth-environmentalmapping · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
concepts[field].local:field:earth-environmentalmapping · figshare dmu ac ukconnector:figshare_dmu_ac_uk@1.0.0
concepts[field].local:field:life-sciencesmapping · figshare dmu ac ukconnector:figshare_dmu_ac_uk@1.0.0
concepts[field].local:field:life-sciencesmapping · zivahub uct ac zaconnector:zivahub_uct_ac_za@1.0.0
concepts[field].local:field:life-sciencesmapping · dro deakin edu auconnector:dro_deakin_edu_au@1.0.0
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