Structure–property relationship of polyetheramines as clay‐swelling inhibitors in water‐based drilling fluids

Peng, Bo; Luo, Pingya; Guo, Wuqian; Yuan, Quanping

doi:10.1002/app.38784

Cited by 41 publications

(18 citation statements)

References 20 publications

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“…Bentonite can expand by ten times its dry volume in water (Peng et al 2013). Bentonite slurry 3 behaviour is very complex and not well-understood and this is reflected by the numerous rheological studies on this material (van Olphen 1955, 1957, M'Ewen and Mould 1957, Brandenburg and Lagaly 1988, Lagaly 1989, Luckham and Rossi 1999.…”

Section: Introductionmentioning

confidence: 99%

Surface chemistry and rheological properties of API bentonite drilling fluid: pH effect, yield stress, zeta potential and ageing behaviour

Huang

Leong

Chen³

et al. 2016

Journal of Petroleum Science and Engineering

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API bentonite, a key ingredient of drilling muds, displayed a negative zeta potential across the whole pH range of 2.5 to 12.3. It contained two very rheological active ingredients, sodium montmorillonite or Na+Mt (40.4%) and needle-shape sepiolite (16%). Due to the interplay of these two ingredients, the rheological behaviour displayed by the API bentonite suspensions is quite different to other bentonite suspensions. The gel displayed a very low or no yield stress at low acidic pH and a maximum yield stress at pH 8-12. Magnesium leaching from sepiolite at low pH and its hydrolysis plays a role in affecting the rheological properties at high pH. Yield stress and ageing behaviour was observed in suspensions with at least 3wt% solids. The Herschel-Bulkley (HB) model described the flow behavior of these gels. Both the HB yield stress and viscosity at a fixed shear rate of the 7 wt% gel peaked at pH 8.5 and were smallest at pH 5.2. The ageing or structural recovery behaviour is most pronounced at high pH for the most concentrated gels. Both the Leong and Nguyen-Boger ageing models described the structural recovery behaviour well. The recovery of the recently discovered very open honeycomb structure formed by Na+MT gel, after breakdown by shear was invoked to explain the ageing behaviour.

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Section: Introductionmentioning

confidence: 99%

Surface chemistry and rheological properties of API bentonite drilling fluid: pH effect, yield stress, zeta potential and ageing behaviour

Huang

Leong

Chen³

et al. 2016

Journal of Petroleum Science and Engineering

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“…The tendency of shale sample to absorb water was examined by placing a shale sample in fresh water. Figure 2 shows the disintegration of shale sample in the presence of water after 24 h. As Zhong et al (2011Zhong et al ( , 2012Zhong et al ( , 2013Zhong et al ( , 2015aZhong et al ( , b, 2016 Polyetheramines, polyetherdiamines, poly (oxpropylene)amidoamine, and polyamidoamine dendrimers -250 °F Improve shale recovery Peng et al (2013) Polyetheramine -250 °F Improve shale recovery Fig. 1 Chemical structure of a PAC and b 1,6-hexamethylenediamine (Plank and Gossen 1991;Patel 2009) it can be seen, the Pabdeh shale sample is highly unstable in fresh water.…”

Section: Shale Characterizationmentioning

confidence: 90%

The effect of 1,6-hexamethylenediamine on thermal stability and shale cutting recovery of heavy weight drilling fluids

Agin¹,

Sharifnik

Dijvejin

et al. 2018

J Petrol Explor Prod Technol

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The capability of drilling fluid to endure high temperature and stabilize shale cuttings is important characteristics of drilling fluids. In this work, a combination of 1,6-hexamethylenediamine and polyanionic cellulose (PAC) was tested to observe the impact of 1,6-hexamethylenediamine on thermal stability of PAC and its influence on the shale cutting stability of drilling fluid. First, rheological parameters and filtration control were examined at four different temperatures (325 °F, 350 °F, 375 °F, and 400 °F). Then, the cutting disintegration test was performed at 250 °F to evaluate the effect of 1,6-hexamethylenediamine on shale cutting stability. Experimental results showed that adding 1,6-hexamethylenediamine to drilling fluids effectively increases the thermal stability of the rheological parameters of drilling fluids such as apparent viscosity, plastic viscosity, yield point, and gel strength up to 350 °F. It was also concluded that when 1,6-hexamethylenediamine is added to drilling fluid, the amount of fluid loss is in acceptable range up to 375 °F. Finally, the results indicated that 1,6-hexamethylenediamine significantly increases the shale cutting recovery.Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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“…Water-reactive shales are reported to be present in more than 75% of all formations drilled across the world (Anderson et al 2010;Dzialowski et al 1993;Peng et al 2013). In CSG wells drilled in the Surat Basin of Queensland Australia the problems associated with clayswelling are exemplified in open-hole completions across multiple thin coal seams (commonly less than 1 m thick Hamilton et al 2014) and clay-rich interburden layers.…”

Section: Introductionmentioning

confidence: 99%

A phase inversion polymer coating to prevent swelling and spalling of clay fines in coal seam gas wells

Hamilton

Febrina

et al. 2018

Int J Coal Sci Technol

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We report a phase inversion polymer coating as a novel concept with potential to prevent clay swelling and fines generation in coal seam gas, or other petroleum, wellbores. Our approach uses polyethersulfone (PES) with N-methyl-2-pyrrolidone (NMP) as a water-soluble solvent to form a dense, low-porosity film across the clay-rich interburden layers, but a porous and permeable membrane on coal seams. This contrasting behaviour occurs because the coal contains much more free water than the clay-rich interburden layers. We demonstrate the efficacy of the method to prevent clay spalling in immersion tests and under a flow of fresh water in a visual swell test apparatus. The clay-rich rocks studied were mudstone and siltstone, and these were dip coated in the PES/NMP solution. The uncoated mudstone swelled and broke apart quickly in the immersion test and visual flow test, but the PES coated rock samples were stable for 30 days. The coated rock and coal samples were characterised by X-ray diffraction, Fourier transform infrared spectroscopy and scanning electron microscopy. The morphology of coated mudstone and coated coal samples showed that the polymer formed a dense layer across the low-permeability mudstone, but an open porous structure on the coal surface. The effect of the coating on the permeability of KCl brine through coal was measured in a core-flood apparatus. Although the permeability of the coal showed some deterioration after coating, from (0.58 ± 0.12) mD to (0.3 ± 0.03) mD, these results demonstrate the potential of a smart polymer coating to prevent clay swelling while remaining permeable to gas and water on coal layers.

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Structure–property relationship of polyetheramines as clay‐swelling inhibitors in water‐based drilling fluids

Cited by 41 publications

References 20 publications

Surface chemistry and rheological properties of API bentonite drilling fluid: pH effect, yield stress, zeta potential and ageing behaviour

Surface chemistry and rheological properties of API bentonite drilling fluid: pH effect, yield stress, zeta potential and ageing behaviour

The effect of 1,6-hexamethylenediamine on thermal stability and shale cutting recovery of heavy weight drilling fluids

A phase inversion polymer coating to prevent swelling and spalling of clay fines in coal seam gas wells

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