Polyoxyalkyleneamine as shale inhibitor in water-based drilling fluids

Qu, Yuanzhi; Lai, Xingping; Laifang, Zou; Su, Yinao

doi:10.1016/j.clay.2009.03.003

Cited by 93 publications

(45 citation statements)

References 3 publications

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“…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. Shadizadeh et al (2015) reported a novel nonionic surfactant extracted from a plant leaf for inhibiting shale hydration.…”

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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“…However, water-based drillings uids are dominant in horizontal wells drilled in shales due to their advantages over oil-based ones in terms of environmental friendliness and cost. [4][5][6] Efforts have been directed to address the welling inhibition problems in shales, which are mostly caused by water.…”

Section: Introductionmentioning

confidence: 99%

“…8, the thermal decomposition of DAM can be divided into three stages with respective corresponding temperature ranges of 40.0-105. 6 C, 105.6-288.2 C, and 288.2-409 C. C. During this stage, the thermal weight loss rate was slow and the weight loss was small, which can be attributed to the massive hydrophilic groups in the DAM structure, such as -OH, as well as the easy absorption of water by the sample. Therefore, the reduction in sample quality in this temperature range was caused by the evaporation of the absorbed water.…”

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confidence: 99%

Preparation and evaluation of polyampholyte inhibitor DAM

Wang

et al. 2017

RSC Adv.

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aIn this study, polyampholyte inhibitor DAM was synthesized from three monomers, namely, diallyl dimethyl ammonium chloride (DMDAAC), methyl allyl alcohol (MP) and 2-acrylamido-2-methyl propane sulfonic acid (AMPS), by aqueous solution polymerization. The inhibition performance of DAM was evaluated from the perspectives of particle-size distribution, hot-rolling dispersion test, linear swelling test, and inherent viscosity. Inhibitory mechanisms were investigated by molecular weight pattern analysis, infrared radiation (IR) spectroscopy, zeta potential measurement, thermogravimetric analysis (TGA), and the scanning electron microscope (SEM) technique. The results demonstrated the good inhibitive effect exerted by DAM on the hydration and dispersion of shale, which achieved optimum values and showed a good synergetic effect with the addition of 3% KCL. Moreover, it is thermally stable at 288 C.

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“…In recent years, organic amine compounds with high performance shale inhibitor draw much attention of the researchers. This system has obtained wide application around the world with great success because of excellent inhibition, lubrication and stable rheological property and so on [5][6]. As the key additive, quaternary ammonium salt has higher inhibitory and anti-balling abilities, and it is not poisonous and non-hazardous, the use of this drilling fluid could eliminate cost of oil contaminated drilled cuttings disposal [7][8].…”

Section: Introductionmentioning

confidence: 99%

Investigation of melamine derived quaternary as ammonium salt potential shale inhibitor

Guo

et al. 2017

IOP Conf. Ser.: Earth Environ. Sci.

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Polyoxyalkyleneamine as shale inhibitor in water-based drilling fluids

Cited by 93 publications

References 3 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

Preparation and evaluation of polyampholyte inhibitor DAM

Investigation of melamine derived quaternary as ammonium salt potential shale inhibitor

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