Toughening effects of well-dispersed carboxylated styrene-butadiene latex powders on the properties of oil well cement

Zhao, Jiaqi; Hu, Miaomiao; Liu, Wenming; Feng, Jianghui; Zhang, Hang; Liu, Ming; Guo, Jintang

doi:10.1016/j.conbuildmat.2022.127768

Cited by 18 publications

(10 citation statements)

References 48 publications

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“…In the early stage of cement solidification, due to the filling and dispersion of latex, a polymer network is formed in the middle of cement particles, and the microstructure is more uniform and dense. 14 With the extension of curing time, the macropores of cement at 28 d are less than the initial visible macropores, as shown in Figure 16e,f. This is consistent with the previous BET test results.…”

Section: Samplementioning

confidence: 91%

“…The mathematical expressions of Bingham model, consistency coefficient (k), and flow index (n) are shown in Equations (3-5). 14,31,32 τ…”

Section: Rheological Behaviormentioning

confidence: 99%

“…Because of the adsorption of latex on the surface of cement particles forms a three-dimensional network structure. 14 This network structure prevents the migration of small molecule water and improves the control ability of fluid migration. In addition, the gradual decrease of filter cake thickness also confirms this view.…”

Section: Thickening Propertiesmentioning

confidence: 99%

“…It is reported that nanostructured styrene-butadiene latex (SBR) polymer materials can improve the flow performance of cement and control the thickening of cement to a certain extent while improving the properties of cement-based materials. [13][14][15] However, it is not clear how the film-forming property of styrene-butadiene latex affects the phenomenon of interlayer gas migration in the gel state stage of cement. Wichaita et al 16 regulated the nanomicrostructure and composition of natural latex by surface functional modification, which provided theoretical guidance for the modification research and engineering application of latex nanoparticles.…”

Section: Introductionmentioning

confidence: 99%

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Effects of carboxylated styrene‐butadiene latex nanoparticles on channeling leakage and pore structure of oil well cement

Dong,

Wang,

et al. 2024

J of Applied Polymer Sci

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The exploitation efficiency of oil and gas resources depends on the cementing quality. In cementing engineering, interlayer migration occurs in the underground gas layer with cement hole as the main channel, which seriously threatens the sealing integrity of cement casing and leads to the failure of cementing operation. To improve the gas migration control ability of oil well cement (OWC), two carboxylated styrene‐butadiene latex nanomaterials styrene butadiene latex containing itaconic acid and sodium p‐styrene sulfonate (SBSI) and styrene‐butadiene latex containing methacrylic acid and sodium p‐styrene sulfonate (SBSM) were synthesized. The effects of SBSI and SBSM with different carboxyl structures on the gas migration control ability and pore structure of cement were investigated. The results show that the latex is densely packed on the cement matrix through the dissociation and adsorption behavior of carboxyl groups, and the smaller particle size and lower adsorption are more conducive to the formation of the film. The introduction of latex effectively shortened the transition time of cement gel state and significantly reduced the permeability of interlayer material migration. Compared with OWC, the transition time of cement containing SBSI and SBSM latex (SBSI/OWC and SBSM/OWC) decreased from 28 to 18 and 17 min, respectively, and the filter loss decreased from 60 to 40 and 36 mL, respectively. The isolation effect of the latex film on the interlayer gas and the provision of mechanical support have greatly improved the gas migration control ability of the cement and ensured the cementing quality. In addition, the refinement of cement pore structure caused by latex brings better rheological and mechanical properties to cement. This study clarified the change of latex in the gel transition stage of OWC from liquid to solid and revealed the mechanism of latex on the internal structure change of cement. It broadens the application range of latex nanomaterials in the field of OWC and provides a new possibility for the use of OWC in high temperature and high salt environment.

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Section: Samplementioning

confidence: 91%

“…The mathematical expressions of Bingham model, consistency coefficient (k), and flow index (n) are shown in Equations (3-5). 14,31,32 τ…”

Section: Rheological Behaviormentioning

confidence: 99%

Section: Thickening Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Effects of carboxylated styrene‐butadiene latex nanoparticles on channeling leakage and pore structure of oil well cement

Dong,

Wang,

et al. 2024

J of Applied Polymer Sci

Self Cite

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“…Fibers mainly include inorganic and organic fibers, which can improve the internal bonding performance of cement pastes by “bridging” and limit the development of cracks when the cement paste is damaged [ 4 , 5 ]. Latex can form a continuous polymer membrane structure in oil-well cement, which can improve the flexibility and toughness of cement paste at the same time [ 6 ]. The elastic particles are mainly rubber powder, which is filled in the cement stone.…”

Section: Introductionmentioning

confidence: 99%

Study on an Epoxy Resin System Used to Improve the Elasticity of Oil-Well Cement-Based Composites

Song

Tan

et al. 2022

Materials

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Oil-well cement-based materials have inherent brittleness; therefore, they cannot be directly used to seal oil and gas wells for a long time. To improve the elasticity of oil-well cement-based composites, a flexible epoxy resin system was developed. The flexibility, TG, and SEM of the cured resin system were evaluated. At the same time, the resin was added to oil-well cement-based materials to improve its elasticity. The compressive strength and elastic modulus of resin cement stone were tested, and the microstructure was analyzed by XRD, TG, and SEM/EDS. The results showed that the structure of the cured resin is compact, the thermal decomposition temperature is 243.9 °C, and it can recover its original shape after compression. At the curing age of 28 days, the compressive strength of cement-based composites containing 30% resin decreased by 26.7%, while the elastic modulus significantly decreased by 63.2%, and the elasticity of cement-based composites was significantly improved. The formation of hydration products (e.g., calcium silicate hydrate, and calcium hydroxide) in the resin cement slurry is obviously lower than that of pure cement, which is the reason for the decrease in compressive strength. The flexible structure of polymer particles and polymer film formed by epoxy resin is distributed inside the cement stone, which significantly improves the elasticity of oil-well cement-based composites. The results of this paper are helpful for the design of elastic cement slurry systems.

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Natural Rubber Latex Modified High Performance Concrete

Mathew,

Joseph

2024

Iran J Sci Technol Trans Civ Eng

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Toughening effects of well-dispersed carboxylated styrene-butadiene latex powders on the properties of oil well cement

Cited by 18 publications

References 48 publications

Effects of carboxylated styrene‐butadiene latex nanoparticles on channeling leakage and pore structure of oil well cement

Effects of carboxylated styrene‐butadiene latex nanoparticles on channeling leakage and pore structure of oil well cement

Study on an Epoxy Resin System Used to Improve the Elasticity of Oil-Well Cement-Based Composites

Natural Rubber Latex Modified High Performance Concrete

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