Synthesis of carboxymethyl chitosan as an eco-friendly amphoteric shale inhibitor in water-based drilling fluid and an assessment of its inhibition mechanism

Lei, Ming; Huang, Weian; Sun, Jinsheng; Shao, Zixuan; Wu, Tongliang; Liu, Junyi; Fan, Yu

doi:10.1016/j.clay.2020.105637

Cited by 30 publications

(22 citation statements)

References 56 publications

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“…Moreover, the crimped and lamellar surface morphology features were hardly observed. Similar surface changes were commonly reported in research about the interaction of polymer and clay 37,60 . Distinct surface and size differences supported the adsorption of HACC and proved the partial inhibition of hydration expansion.…”

Section: Resultssupporting

confidence: 83%

“…Some engineering soil problems have considered the influence of chitosan‐based materials on soils. For example, carboxymethyl chitosan has a significant anti‐swelling effect on Na‐bentonite, and 2‐hydroxypropyltrimethyl ammonium chloride chitosan (HACC) also significantly controls the expansion of Na‐ bentonite 37,38 . Quaternary ammonium (QA)‐based materials introduce the QA groups to the Nitrogen‐atoms position, resulting in a stable cationic charge 39–41 .…”

Section: Introductionmentioning

confidence: 99%

“…For example, carboxymethyl chitosan has a significant anti-swelling effect on Na-bentonite, and 2-hydroxypropyltrimethyl ammonium chloride chitosan (HACC) also significantly controls the expansion of Na-bentonite. 37,38 Quaternary ammonium (QA)-based materials introduce the QA groups to the Nitrogen-atoms position, resulting in a stable cationic charge. [39][40][41] HACC has good solubility and stable cationic charges, promoting the strong adsorption effect.…”

Section: Introductionmentioning

confidence: 99%

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Influence of 2‐hydroxypropyltrimethyl ammonium chloride chitosan on sedimentation and volume change behavior of cohesive soil sediments

Qiu

Lü

et al. 2022

J of Applied Polymer Sci

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The 2‐hydroxypropyltrimethyl ammonium chloride chitosan (HACC), introducing the functional quaternary ammonium group to the structure of Chitosan, has greatly broadened the application prospect. The influence on natural cohesive soil has rarely been considered. The sedimentation tests for the natural soil in HACC solutions and the HACC‐treated soils in distilled water are considered to analyze the change of sedimentation behaviors in this paper. Moreover, the potential change on the surface of soil particles, the change in particle size distribution, X‐ray diffraction of Ca‐montmorillonite/HACC, and scanning electron microscopy images are investigated to explain the reasons for the results. Results indicate that the surface potential of soil particles achieved reversal, and the particle size had significant agglomeration. The adsorption of HACC results in the rapid sedimentation of the treated soils in water. HACC has a significant influence on setting time and final volume. HACC cannot inhibit the interlayer swelling of Ca‐montmorillonite. The dehydration process can promote the aggregation effect of the treated soils. The specific effects provided an essential train of thought to solve soil problems.

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Section: Resultssupporting

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Influence of 2‐hydroxypropyltrimethyl ammonium chloride chitosan on sedimentation and volume change behavior of cohesive soil sediments

Qiu

Lü

et al. 2022

J of Applied Polymer Sci

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“…Salt contamination has become the most critical challenge faced by WBDMs under extreme salinity which can considerably reduce the rheological and filtration properties. ,, Hence, in this study, we analyzed the impact of CaCl 2 contamination on bentonite dispersion and filtration properties. Because the BF1sample showed an out-of-control fluid loss in media with higher salinity during base tests measurement, a second-base fluid (BF2) was prepared with a higher bentonite concentration (9 wt %).…”

Section: Methodsmentioning

confidence: 99%

Hydrodynamic Analysis and Cake Erosion Properties of a Modified Water-Based Drilling Fluid by a Polyacrylamide/Silica Nanocomposite during Rotating-Disk Dynamic Filtration

2022

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In this study, the potential of using a polyacrylamide-silica nanocomposite (PAM-S) to control the filtration properties of bentonite water-based drilling muds under different salinity conditions was evaluated. Static filtration tests under low-pressure/low-temperature (LPLT) conditions accompanied by rheological measurements have been carried out to analyze the role of silica nanoparticles (NPs) and nanocomposites (NCs) in the base fluid properties. Moreover, high-pressure/high-temperature (HPHT) static filtration was also investigated to evaluate the thermal stability of PAM-S. Afterward, dynamic filtration has been conducted in a filtration cell equipped with an agitating system with a disk-type impeller to investigate the hydrodynamic and formation of a filter cake under shear flow conditions. Fluid flow velocity and wall shear stress (WSS) distribution over the filter cake were analyzed using an exact 3D computational fluid dynamic (CFD) simulation. A transparent filtration cell with a camera was used to accurately record the fluid flow field inside the filter press and validate the CFD results. The obtained results indicated that adding silica NPs at a concentration of less than 2 wt % increases the fluid loss due to reducing rheological properties such as yield point. While silica NPs could not significantly change the mud properties, the experimental results showed that, under both LPLT and HPHT conditions, the PAM-S NC could reduce the total filtration loss by 70% at a low concentration of 0.75 wt %. Moreover, during dynamic filtration, the results indicated that there is a linear relationship between the cake thickness and the inverse of WSS at different operating pressures. However, no correlation could be found between predeposited mud cake erosion and WSS. At a rotating disk speed of 1000 rpm, more than 60% of the predeposited mud cake was eroded after 30 min for a saline mud sample while for the NC-treated mud sample cake erosion is considerably reduced and reaches up to 20% at 1.5 wt % PAM-S.

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“…Quaternary ammonium salts [ 16 ] tend to dislocate alkali or alkali earth cations from the interlayer space of aluminosilicates, which demonstrate lesser swelling of clay minerals present in the shales. Researchers have studied various types of shale inhibitors, such as low molecular weight cationic polymers, [ 17 ] dendrimers, [ 18 ] carbon functionalized with dendrimers, [ 19 ] polyethyleneimines, [ 20 ] functionalized nano‐silica, [ 21 ] laponite, [ 22 ] ionic liquids, [ 23 ] deep eutectic solvents, [ 24 ] modified biopolymers and surfactants, [ 25–27 ] and amphiphilic polymers. [ 28 ] Thermally stable biodegradable, poly‐L‐arginine, showed reduction in the swelling degree of bentonite to 70.5% and improved the shale recovery to 71.40% at high temperature.…”

Section: Introductionmentioning

confidence: 99%

Impervious synthetic layered silicates coating to restrict the swelling of clay‐rich shales

Santra

2021

Can J Chem Eng

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An incremental demand towards the use of water‐based fluids for drilling oil and gas wells has generated numerous challenges in the field of shale inhibition characteristics. One of the major problems associated with the use of water‐based drilling fluids is the interaction of water with clay‐rich shales that leads to hydration and swelling of reactive clays. We have developed functionalized nanoplatelets composed of amine functionalities anchored on the nanometre‐thick magnesium silicates (LMS‐NH2). A facile synthetic approach was employed to synthesize lab‐scale quantity of LMS‐NH2 through combination of sol–gel and precipitation techniques. The structural characterization was conducted using powder X‐ray diffraction, Fourier transform infrared spectroscopy, and thermogravimetric analysis to evaluate generation of anticipated LMS‐NH2. Shale stabilization characteristics of LMS‐NH2 were tested and compared with other commercial shale inhibitors. Clay swelling and clay dispersion tests were performed to demonstrate the effectiveness of the impermeable coating of nano‐platelets on to the clay‐rich shales. The LMS‐NH2 demonstrated 87% recovery of swellable shales after dispersion tests. The microscopic study conducted on shales revealed the formation of inorganic film, which provide impervious coating to protect the water‐susceptible clays. The linear swelling measurements were also performed to understand the effectiveness of LMS‐NH2 over 72 h. LMS‐NH2 demonstrated linear swelling of 31.7% when compared with drilling fluid without shale inhibitor. The newly developed inhibitor in the current study has outperformed conventional shale inhibitors (a 18.7% reduction in linear swelling), wherein the presence of inorganic constituents aids stronger film formation compared to solely organic inhibitors.

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Synthesis of carboxymethyl chitosan as an eco-friendly amphoteric shale inhibitor in water-based drilling fluid and an assessment of its inhibition mechanism

Cited by 30 publications

References 56 publications

Influence of 2‐hydroxypropyltrimethyl ammonium chloride chitosan on sedimentation and volume change behavior of cohesive soil sediments

Influence of 2‐hydroxypropyltrimethyl ammonium chloride chitosan on sedimentation and volume change behavior of cohesive soil sediments

Hydrodynamic Analysis and Cake Erosion Properties of a Modified Water-Based Drilling Fluid by a Polyacrylamide/Silica Nanocomposite during Rotating-Disk Dynamic Filtration

Impervious synthetic layered silicates coating to restrict the swelling of clay‐rich shales

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