Regulation of oil well cement paste properties by nanoclay: Rheology, suspension stability and hydration process

Li, Pengpeng; Hu, Miaomiao; Liu, Ming; Zhang, Hang; Zhao, Jiaqi; Xia, Xiujian; Guo, Jintang

doi:10.1016/j.conbuildmat.2023.131049

Cited by 7 publications

(6 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The transition time of static gel is generally based on the time required for the strength development from 48 to 240 Pa. Static gel strength and transition time of gel state are important parameters to describe the development of cement strength in transition state and evaluate the ability to inhibit gas migration. 1 Because the cement gel state has a porous structure, the gas migration phenomenon mainly occurs in this transition stage. The higher strength development of cement in the gel state is conducive to rapid curing molding and ensuring the quality of early cementing.…”

Section: Sgs Testmentioning

confidence: 99%

“…Oil well cement (OWC) is injected into the annular space between the casing and the formation to prevent the vertical migration of the fluid while providing mechanical support during cementing process. 1,2 While, the cement slurry exhibits a porous gel structure during the solidification phase transition from liquid to solid. In the gel state, the cement slurry usually undergoes autogenous shrinkage, pressure imbalance, and pore structure changes, [3][4][5] which in turn leads to gas migration and serious consequences of wellbore sealing failure 1 (Figure 1).…”

Section: Introductionmentioning

confidence: 99%

“…1,2 While, the cement slurry exhibits a porous gel structure during the solidification phase transition from liquid to solid. In the gel state, the cement slurry usually undergoes autogenous shrinkage, pressure imbalance, and pore structure changes, [3][4][5] which in turn leads to gas migration and serious consequences of wellbore sealing failure 1 (Figure 1). The solution is usually to reduce the capillary pressure by adding admixtures, including internal curing agents and clay, to the internal pores of cement.…”

Section: Introductionmentioning

confidence: 99%

“…The existing research on inhibiting gas migration in cement slurry is usually carried out by adding fillers to cement and changing the internal migration channel of cement. Li et al 1 introduced nanoclay dispersions laponite and sodium bentonite to enhance the thixotropy of cement paste and inhibit the gas migration of cement paste at high temperature. Ji et al 11 developed a nanosized dispersed particle gel for gas migration control and its high viscosity aggregation characteristics were studied.…”

Section: Introductionmentioning

confidence: 99%

See 3 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

View full text Add to dashboard Cite

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.

show abstract

Section: Sgs Testmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

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

View full text Add to dashboard Cite

show abstract

“…The structural build-up of ce mentitious materials modified by nanoclay is time-dependent. The material propertie evolve significantly in the minutes after the stop of the flow [17,23,24]. This indicates th Considering the mentioned effects of nanoclay on cementitious materials, adding nanoclay in printable concrete can be beneficial for printing tunnel linings.…”

Section: Introductionmentioning

confidence: 95%

The Time-Dependent Interfacial Adhesion between Artificial Rock and Fresh Mortar Modified by Nanoclay

Wang,

Van Tittelboom,

Zhang

et al. 2024

Nanomaterials

View full text Add to dashboard Cite

The time-dependent interfacial adhesion between rock and fresh mortar is key for printing concrete linings in mountain tunnels. However, a scientific deficit exists in the time-dependent evolution of the interfacial adhesion, which can cause adhesion failure when printing tunnel lining. Nanoclay has the potential to increase the interfacial adhesion and eliminate the adhesion failure. Before the actual printing of tunnel linings, the time-dependent interfacial adhesion between artificial rock and fresh mortar modified by nanoclay should be understood. This paper studied the time-dependent interfacial adhesion based on fast tack tests, fast shear tests, and isothermal calorimetry tests. With the addition of nanoclay, the maximum tensile stress and the maximum shear stress increased. Compared with a reference series, the maximum interfacial tensile stress in a 0.3% nanoclay series increased by 106% (resting time 1 min) and increased by 209% (resting time 32 min). A two-stage evolution of the interfacial adhesion was found with the addition of nanoclay. In the first stage, the time-dependent interfacial adhesion increased rapidly. A 0.3% NC series showed an increase rate six times higher than that of the reference series. As the matrices aged, the increase rate slowed down and followed a linear pattern of increase, still higher than that of the reference series. The stiffening of fresh matrices resulted in the interface failure mode transition from a ductile failure to a brittle failure. The effect of nanoclay on flocculation and on accelerating the hydration contributed to the time-dependent interfacial adhesion between artificial rock and fresh mortar.

show abstract

Study on synthesis of temperature-resistant polycarboxylic acid dispersant and its application in oil well cement

Feng,

Li,

Peng

et al. 2024

J Sol-Gel Sci Technol

View full text Add to dashboard Cite

Polycarboxylic acid dispersant has the advantages of good dispersion performance and environmental protection, and has a good application prospect in oil well cement. However, the current polycarboxylate dispersant has poor temperature resistance, which limits its application in high temperature formation cementing. In this study, a polycarboxylic acid dispersant (NLPC) that can be applied to high temperature cementing was synthesized by free radical copolymerization of monomer isoprenol polyoxyethylene ether, maleic acid, 2-acrylamido-2-methylpropanesulfonic acid and N-vinyl-2-pyrrolidone. The structure of NLPC was characterized by Fourier transform infrared spectroscopy, gel permeation chromatography and 1 H nuclear magnetic resonance spectroscopy. The effects of NLPC on the uidity, rheological properties, thickening time and mechanical strength of cement paste at different temperatures were tested, and compared with the traditional sulfonated acetone-formaldehyde polycondensate (SAF) dispersant. The mechanism of dispersant and its effect on cement hydration behavior were systematically studied by total organic carbon, Zeta potential, particle size analysis, thermogravimetric analysis and X-ray diffraction analysis. The effect of dispersant on the microstructure of hardened cement was analyzed by scanning electron microscopy. The results show that NLPC has excellent high temperature dispersion performance. At 150 ℃, NLPC can signi cantly reduce the consistency coe cient of cement paste, increase the uidity index of cement paste, signi cantly improve the rheological properties of cement paste, and the paste has excellent thickening performance, and the initial consistency is lower than SAF.In addition, due to the good dispersion of cement particles by NLPC, the early mechanical strength of cement stone after solidi cation is also improved. The mechanism analysis shows that NLPC improves the dispersion performance of oil well cement paste mainly through electrostatic repulsion and steric hindrance effect. In short, NLPC overcomes the shortcomings of low e ciency and heavy pollution of SAF dispersant and low applicable temperature of conventional polycarboxylic acid dispersant, and ensures the smooth progress of high temperature deep well cementing construction.

show abstract

Regulation of oil well cement paste properties by nanoclay: Rheology, suspension stability and hydration process

Cited by 7 publications

References 46 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

The Time-Dependent Interfacial Adhesion between Artificial Rock and Fresh Mortar Modified by Nanoclay

Study on synthesis of temperature-resistant polycarboxylic acid dispersant and its application in oil well cement

Contact Info

Product

Resources

About