Poly (oxypropylene)-amidoamine modified bentonite as potential shale inhibitor in water-based drilling fluids

Zhong, Hanyi; Qiu, Zhengsong; Huang, Weian; Cao, Jie

doi:10.1016/j.clay.2012.06.002

Cited by 99 publications

(38 citation statements)

References 20 publications

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“…Inhibitors are commonly used in drilling fluids to prevent clay swelling. In recent years, Zhong et al 2012 proposed that poly(oxypropylene)-amidoamine (POAA) was a potential shale inhibitor in water-based drilling fluids. Qu et al (2009) investigated the performance of polyoxyalkyleneamine to prevent shale hydration and swelling, but the inhibiting ability was insufficient when polyoxyalkyleneamine was used in water-based fluids during drilling shale formations.…”

Section: Introductionmentioning

confidence: 99%

The assembly of a composite based on nano-sheet graphene oxide and montmorillonite

Weijia

et al. 2018

Pet. Sci.

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Graphene oxide (GO) nano-sheets were synthesized using a modified Hummers' method from graphite powder. The Raman spectrum of GO displayed a D-band at 1359 cm -1 and a G-band at 1594 cm -1 . The I D /I G value of GO was calculated to be 0.97, suggesting the formation of new sp 2 clusters upon reduction. A method was designed to investigate the assembly of the GO/montmorillonite (MMT) composite. After the addition of GO, the typical peaks of montmorillonite in FT-IR spectra shifted, indicating the assembly between GO and MMT. The D-band and G-band reduced sharply in the GO/MMT composite. More importantly, the D-band (1344 cm -1 ) and G-band (1574 cm -1 ) shifted significantly and the I D / I G value of the GO/MMT composite was calculated to be 1.13, showing a change in the GO structure. In the addition of 0.04 wt% GO to MMT, the value of interlayer space (d) was up to 13.0 Å measured by XRD due to the insertion of GO into MMT. The evident increases in contents of carbon atoms (26.59%) and nitrogen atoms (3.44%) indicate that GO was successfully combined with MMT. The nano-pores and clay sheets were not observed in the SEM image of GO/clay, but obvious wrinkles, while flexible sheets were observed in the typical scanning electron microscopy images of GO. This further proves that GO was combining with clay. The TEM image shows that the GO nano-sheets were tiled on the surface of MMT sheets. This observation suggests that a stable assembly structure was formed between GO sheets and MMT sheets. The change in particle size of MMT with the addition of GO shows that interaction occurred between GO sheets and MMT sheets, which was further confirmed by the results of zeta potential. Adsorption and insertion were the main mechanisms to assemble GO and MMT.

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Section: Introductionmentioning

confidence: 99%

The assembly of a composite based on nano-sheet graphene oxide and montmorillonite

Weijia

et al. 2018

Pet. Sci.

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“…To deal with the possible damages caused by water, chemical inhibitors are added to the fluid formulation in order to minimize or even prevent the shale crystalline destruction. The literature reports the use of inorganic salts, such as KCl, and CaCl 2 , water soluble silicates (Gomez and Patel, 2013), cationic hydrophobized polysaccharides (Lopes et al, 2014), ionic liquids (Berry et al, 2009), poly(oxyalkyl)amines (Qu et al, 2009;Wang et al, 2011), poly(oxypropylene)amidoamine (Zhong et al, 2012), others amine derivatives (Patel et al, 2007;Zhong et al, 2015aZhong et al, , 2015b and nonionic molecules/polymers (Shadizadeh et al, 2015), all of them presenting advantages and disadvantages. Regarding the environmental requirements for the drilling fluid formulation, amine derivatives such as quaternary alkyl ammonium salts or amine containing polymers are highly efficient shale inhibitors, but present elevated toxicity.…”

Section: Introductionmentioning

confidence: 99%

Partially hydrophobized hyperbranched polyglycerols as non-ionic reactive shale inhibitors for water-based drilling fluids

Ferreira

Teixeira

Lachter

et al. 2016

Applied Clay Science

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“…In general, the products developed though scientific research are only tested against a single type of clay, limiting their industrial application. Comprehension of the rock–fluid interactions is still limited, so better knowledge is needed of the interplay of the characteristics of the clay mineral, its behavior under field conditions and the additive's structure.…”

Section: Introductionmentioning

confidence: 99%

Correlation between clay type and performance of swelling inhibitors based on polyetherdiamine in aqueous fluids

Silva

Bertolino

Lucas

2019

J of Applied Polymer Sci

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In this work, the linear swelling of four samples of natural clays was evaluated, using poly(propylene glycol) bis(2‐aminopropyl ether) Mfalse¯n~230 g mol−1 (PEDA‐230) and Mfalse¯n~400 g mol−1 (PEDA‐400) as shale inhibitors for water‐based drilling fluids, in comparison to a commercial shale inhibitor. The swelling kinetics was described by a semiempirical equation. A correlation was found between the cation exchange capacity of the clays and the diffusion kinetic constant of the inhibitors. Increased molar mass of PEDA favored swelling inhibition. The swelling inhibition was also evaluated by rheology, and the results were in agreement with the linear swelling tests. Scanning electron microscopy demonstrated the occurrence of microfractures on the clay surface after water contact, as well as the adsorption of the different shale inhibitors on the clay surfaces after contact with the aqueous inhibited fluid. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47661.

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Poly (oxypropylene)-amidoamine modified bentonite as potential shale inhibitor in water-based drilling fluids

Cited by 99 publications

References 20 publications

The assembly of a composite based on nano-sheet graphene oxide and montmorillonite

The assembly of a composite based on nano-sheet graphene oxide and montmorillonite

Partially hydrophobized hyperbranched polyglycerols as non-ionic reactive shale inhibitors for water-based drilling fluids

Correlation between clay type and performance of swelling inhibitors based on polyetherdiamine in aqueous fluids

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