Preparation and Swelling Inhibition of Polyammonium

Deng, Qiang; Wei, Deng; Ye, Zheng Qin; Xu, Jin

doi:10.4028/www.scientific.net/amr.482-484.1317

Cited by 3 publications

(2 citation statements)

References 8 publications

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“…The rheological properties, filtration properties and lubrication properties of drilling fluid with inhibitor, tackifier, filtrating agent or lubricant such as AV (apparent viscosity), PV (plastic viscosity), YP (yield point), FL (API filtration) and TG (friction coefficient), were evaluated using a viscometer (ZNN-D6S, Hetongda Co. Ltd, Qingdao), medium-pressure filtration instrument (GJSS-B12K, Haitongda Co. Ltd, Qingdao) and viscosity coefficientin strument (Qingdao Hetongda Co. Ltd, Qingdao) according to the formulas in Chinese National Standard GB/T 16783.1-2006, followed by the thermogravimetry, mud ball experiment and SEM were carried out after the formula of solid-state drilling fluid was determined. [11][12][13][14][15][16][17][18][19][20][21][22][23]…”

Section: Methodsmentioning

confidence: 99%

Study of a strong inhibitory solid-free drilling fluid

Zhang,

Wu,

Chen

et al. 2022

E3S Web Conf.

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The study on the problem of hydration and dispersion expansion of shale and the poor high temperature resistance and lubrication performance of mud with soil is carried out. The selection of viscosity enhancer, filter loss reducing agent, lubricant and inhibitor in solid-state drilling fluid was carried out through experiments. The formula of solid-free drilling fluid was 0.2% 1831+1% xanthan gum+1% phenolic resin and 1% sodium benzenesulfonate. The linear expansion rate of bentonite is less than 20%, which shows that the formulation has good inhibition performance. The mud ball in the drilling fluid after 48 h of storage did not undergo hydration expansion, which indicated that the formulation had strong inhibition on the hydration expansion of clay. Finally, after heating the formula in a roller heating furnace at 120 °C for 16 h, the plastic viscosity, dynamic shear force and apparent viscosity of the formula were determined as 14.00 mPa·s, 24.00 Pa and 39.50 mPa·s respectively, while FL (filtration loss) was 17 mL. In conclusion, the strong inhibition solid-phase drilling fluid formula is superior in both the inhibition of hydration expansion and the high temperature resistance of clay.

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Section: Methodsmentioning

confidence: 99%

Study of a strong inhibitory solid-free drilling fluid

Zhang,

Wu,

Chen

et al. 2022

E3S Web Conf.

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“…Recently, polyammonium has been developed as a kind of excellent clay expansion inhibitor, but these polymers adsorb on the surface of rock, block the formation, and then reduce the permeability of reservoir. Besides, the high toxicity of cationic polymers limits their use either (Deng et al., 2012; Ni et al., 2016; Zhong et al., 2013). Some small molecular ammonium salts, as inhibitors for shale hydration, can avoid such defect above and exhibit ideal inhibitions without any poisonous or hazardous materials.…”

Section: Introductionmentioning

confidence: 99%

Investigation of ammonium–lauric salt as shale swelling inhibitor and a mechanism study

Zhang

et al. 2018

Adsorption Science & Technology

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In this work, a series of ammonium-lauric salts (ALS) was prepared with lauric acid and amines as small molecular shale swelling inhibitor. The inhibitors were screened by the linear expansion test first, and the result shows that the inhibitor prepared by lauric acid and diethylenetriamine with the mole ratio of 2:1 (ALS-2) displays excellent inhibition effect on the hydration expansion of bentonite. The inhibition of ALS-2 to bentonite was fully evaluated by various methods in the following work, including clay linear swelling test and particle distribution measurement. The results show that ALS-2 has superior performance to inhibit the hydration swelling and dispersion of bentonite, and the swelling rate of bentonite in 0.5% ALS-2 was reduced to 29.7%. In water-based drilling fluid, ALS-2 is compatible with the conventional additives, and it can improve

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Preparation of Ammonium Oleic Acid Salts and Their Evaluation as Shale Swelling Inhibitors in Water-Based Drilling Fluid

Zhang

Bai

Sun

et al. 2021

Tenside Surfactants Detergents

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In this paper, ammonium oleic acid salts (AOS) were prepared from oleic acid and amines and investigated as low molecular weight shale swelling inhibitors. First, the inhibitory effect of AOS was investigated using the linear expansion test of bentonite. The results show that the inhibitor prepared from oleic acid and tetraethylene pentamine with a molar ratio of 1:2 (AOS-8) has an excellent inhibitory effect on the hydration expansion of bentonite. The inhibitory effect of AOS-8 on bentonite was further investigated in subsequent work steps using various methods, including the linear swelling test of clay and particle distribution measurement. The results show that AOS-8 has superior performance in inhibiting hydration swelling and dispersion of bentonite. With 0.5% AOS-8, the swelling rate was reduced to 37.7%, and the particle size of bentonite in water could be controlled with AOS-8. Finally, the inhibition mechanism of AOS-8 was determined in detail by scanning electron microscopy (SEM) and thermogravimetric analysis (TGA). In water-based drilling fluid, AOS-8 is compatible with conventional additives. It can also significantly improve the lubricating capacity of the mud cake after ageing at 120°C.

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Preparation and Swelling Inhibition of Polyammonium

Cited by 3 publications

References 8 publications

Study of a strong inhibitory solid-free drilling fluid

Study of a strong inhibitory solid-free drilling fluid

Investigation of ammonium–lauric salt as shale swelling inhibitor and a mechanism study

Preparation of Ammonium Oleic Acid Salts and Their Evaluation as Shale Swelling Inhibitors in Water-Based Drilling Fluid

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