Synthesis, characterization and working mechanism of a novel sustained-release-type fluid loss additive for seawater cement slurry

Cao, Lei; Guo, Jintang; Tian, Jianhua; Yang, Xu; Hu, Miaomiao; Guo, Chun Fei; Fan, Jinjie

doi:10.1016/j.jcis.2018.03.079

Cited by 36 publications

(7 citation statements)

References 48 publications

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“…The general formula of LDHs can be expressed by [M 1– x 2+ M x 3+ (OH) 2 ] x + [A n – ] x / n · m H 2 O. − Because of their special layered structure, LDHs have the characteristics of adjustable chemical composition of main laminate, adjustable anions between layers, and adjustable particle size and distribution of intercalated assemblies. Thus, LDHs are widely used in the fields of adsorbents, − catalysts including photocatalysis and electrocatalysis, − flame-retardant additives, cement additives, drug delivery, − and so on. In particular, LDHs, as a high-temperature (200–500 °C) CO 2 adsorbent, have been widely studied in recent years because of their rapid adsorption/desorption kinetics and simple renewable performance. , The reported CO 2 capture of ZnAl-LDHs (or bulk-LDHs) are about 0.3–0.6 mmol g –1 . , After modification, the CO 2 capture ability of LDHs can be greatly improved.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Investigations into the Performance and Mechanism of CO₂ Capture by 3D and 2D ZnAl Layered Double Hydroxides

et al. 2020

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Two-dimensional (2D) materials have a wide range of applications in adsorption and catalysis because of their high specific surface areas and large number of surface active sites. In this paper, bulk ZnAl layered double hydroxides (ZnAl-LDHs or bulk-LDHs) and 2D monolayer ZnAl-LDHs (monolayer-LDHs) were constructed and used for CO2 capture at temperatures of 298–573 K. The experimental results show that monolayer-LDHs have a large specific surface area (455 m2 g–1) and shows an excellent CO2 capture performance (4.5 mmol g–1). The CO2 adsorption capacity of monolayer-LDHs decreases greatly with an increase of the temperature, while bulk-LDHs are less affected by the temperature. Moreover, the parameters of charge distribution, density of states, and charge transfer of bulk-LDHs and monolayer-LDHs were studied in detail by density functional theory, and the difference of the adsorption mechanism between two LDH materials in CO2 capture was compared. It is found that monolayer-LDHs have better electronic activity than bulk-LDHs. At low temperature, CO2 is more likely to be physically adsorbed on the surface of monolayer-LDHs, and the adsorption process is more likely to occur. CO2 is more easily adsorbed on the surface of bulk-LDHs in the form of chemisorption, the adsorption energy is larger (−1.01 eV), but the CO2 capture capacity is quite stable at high temperature.

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Section: Introductionmentioning

confidence: 99%

Experimental and Theoretical Investigations into the Performance and Mechanism of CO₂ Capture by 3D and 2D ZnAl Layered Double Hydroxides

et al. 2020

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“…The adsorption property of the retarder was characterized by a total organic carbon analyzer (TOC-VCPN, SHIMADZU Company, Japan). The adsorptive capacity of retarder on the surface of oil well cement grains was calculated by the difference of organic carbon content between the raw liquid and the filtrate collected before and after the fluid loss test of the cement paste (depletion method). , According to the Section 10 of ref (Static Fluid-loss Tests) of the API Recommended Practice 10B-2, the fluid loss process was performed in a static fluid loss apparatus (model TG-71, Taige, China) by applying a pressure of 1000 psi to the fluid loss cell with nitrogen. Moreover, the synthesized retarder was characterized by FTIR (500 to 4000 cm –1 ), TGA (30 to 600 °C at the rate of 10 °C/min), and GPC (0.1 M NaNO 3 solution as eluant whose flow rate was 0.5 mL/min).…”

Section: Methodsmentioning

confidence: 99%

Occurrence Mechanism of the Abnormal Gelation Phenomenon of High Temperature Cementing Slurry Induced by a Polycarboxylic Retarder

Xia,

Zhang,

et al. 2024

ACS Omega

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The class G oil well cement is a type of special cement that can be subjected to a high temperature formation environment. It was found that the class G cement tail slurry with a low polycarboxylic retarder dosage (usually ≤1% by weight of cement) was more prone to cause the abnormal gelation phenomenon (AGP) than the lead slurry with a high retarder dosage at a high temperature (usually when T ≥ 120 °C). This study aimed at the occurrence mechanism of this unfavorable phenomenon that seriously endangers the cementing security. Results showed that the abnormal gelatinous region underwent premature hydration; namely, the calcium hydroxide and calcium silicate hydrate (C−S−H) content were all higher than the nongelatinous region, while the copolymer content was the opposite. Correspondingly, the theory of "premature hydration and crystal nucleation" was proposed to explain the abnormal gelation mechanism of a cementing tail slurry with an insufficient retarder dosage. Furthermore, a novel functionalized copolymer retarder "PAIANS" was synthesized to alleviate the AGP.

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“…The decomposition temperature of the quaternary copolymer was more than 360 • C, indicating that the fluid loss additive ADAM-J had good temperature resistance. The analysis shows that the introduction of rigid sulfonic acid and amide groups into the polymer chain improves the rigidity of the molecular chain, thus improving the temperature resistance of the polymer [39].…”

Section: Thermogravimetric Analysis Of Fluid Loss Additive Adam-jmentioning

confidence: 99%

The Development of Anti-Salt Fluid Loss Additive for Cement-Metakaolin Slurry with Semi-Saturated/Saturated Saline Water: The Application of Maleic Anhydride

Li,

Yin,

Zhou

et al. 2024

Processes

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Conventional fluid loss additives have difficultly controlling the water loss of cement–metakaolin slurry with semi-saturated brine cement slurry and limiting it to less than 50 mL (30 min)−1. This paper describes the development of an anti-salt fluid loss additive for metakaolin–cement systems. This study adopted the aqueous solution polymerization method; selected four kinds of monomers, namely 2-Acrylamido-2-methylpropane sulfonic acid (AMPS), N,N-Dimethylacrylamide (DMAA), acrylamide (AM), and methyl acrylate (MA); and performed a single-factor experiment on the proportion of monomer, reaction temperature, initiator dosage, and developed fluid loss additive, which has a high salt tolerance and temperature tolerance. This fluid loss additive can resist salt until saturation, and it can control fluid loss in 24 mL·(30 min)−1 when its dosage is 2%. The fluid loss additive can achieve the effect of fluid loss reduction by increasing the filtrate viscosity, forming a flexible elastic adsorption layer via adsorption, and blocking mud cake pores.

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Synthesis, characterization and working mechanism of a novel sustained-release-type fluid loss additive for seawater cement slurry

Cited by 36 publications

References 48 publications

Experimental and Theoretical Investigations into the Performance and Mechanism of CO₂ Capture by 3D and 2D ZnAl Layered Double Hydroxides

Experimental and Theoretical Investigations into the Performance and Mechanism of CO₂ Capture by 3D and 2D ZnAl Layered Double Hydroxides

Occurrence Mechanism of the Abnormal Gelation Phenomenon of High Temperature Cementing Slurry Induced by a Polycarboxylic Retarder

The Development of Anti-Salt Fluid Loss Additive for Cement-Metakaolin Slurry with Semi-Saturated/Saturated Saline Water: The Application of Maleic Anhydride

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Synthesis, characterization and working mechanism of a novel sustained-release-type fluid loss additive for seawater cement slurry

Cited by 36 publications

References 48 publications

Experimental and Theoretical Investigations into the Performance and Mechanism of CO2 Capture by 3D and 2D ZnAl Layered Double Hydroxides

Experimental and Theoretical Investigations into the Performance and Mechanism of CO2 Capture by 3D and 2D ZnAl Layered Double Hydroxides

Occurrence Mechanism of the Abnormal Gelation Phenomenon of High Temperature Cementing Slurry Induced by a Polycarboxylic Retarder

The Development of Anti-Salt Fluid Loss Additive for Cement-Metakaolin Slurry with Semi-Saturated/Saturated Saline Water: The Application of Maleic Anhydride

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Product

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About

Experimental and Theoretical Investigations into the Performance and Mechanism of CO₂ Capture by 3D and 2D ZnAl Layered Double Hydroxides

Experimental and Theoretical Investigations into the Performance and Mechanism of CO₂ Capture by 3D and 2D ZnAl Layered Double Hydroxides