Polyethyleneimine as shale inhibitor in drilling fluid

Jiang, Guancheng; Qi, Yourong; An, Yuxiu; Huang, Xianbin; Ren, Yifeng

doi:10.1016/j.clay.2016.04.013

Cited by 87 publications

(42 citation statements)

References 34 publications

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“…Wellbore instability incidents, such as wellbore collapse, stuck pipe, tight hole, excessive hole, frequently occur. In recent years, the majority of the horizontal sections is drilled by oil-based drilling fluid (OBF) (Li et al 2014;Sun et al 2018) to avoid shale hydration (Huang et al 2018;Jiang et al 2016;Shadizadeh et al 2015) and enhance lubrication property (Sönmez et al 2013). However, the pollution caused by OBF is difficult to handle, which could cause soil contamination and be toxic to marine life.…”

Section: Introductionmentioning

confidence: 99%

“…Clay swelling, pressure transmission, high drag and torque are among the major factors to cause wellbore instability. The existing HPWBF utilizes high-performance additives such as shale inhibitor (Jiang et al 2016;Shadizadeh et al 2015), plugging materials (Riley et al 2012;Sensoy et al 2009;Sharma et al 2012), and lubricating agents (Li et al 2016c;Sönmez et al 2013) to achieve the "high performance".…”

Section: Introductionmentioning

confidence: 99%

“…Shale inhibitor is widely used in WBF to reduce hydration and swelling of clay. The existing inhibitors include inorganic salts, surfactants (Lv et al 2020;Shadizadeh et al 2015), polymers, alcohols, and polyamines (Jiang et al 2016;Zhong et al 2016), which reduce shale hydration by charge neutralization, wettability reversal, forming isolated layers, reducing surface tension, etc.…”

Section: Introductionmentioning

confidence: 99%

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Laponite: a promising nanomaterial to formulate high-performance water-based drilling fluids

et al. 2020

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High-performance water-based drilling fluids (HPWBFs) are essential to wellbore stability in shale gas exploration and development. Laponite is a synthetic hectorite clay composed of disk-shaped nanoparticles. This paper analyzed the application potential of laponite in HPWBFs by evaluating its shale inhibition, plugging and lubrication performances. Shale inhibition performance was studied by linear swelling test and shale recovery test. Plugging performance was analyzed by nitrogen adsorption experiment and scanning electron microscope (SEM) observation. Extreme pressure lubricity test was used to evaluate the lubrication property. Experimental results show that laponite has good shale inhibition property, which is better than commonly used shale inhibitors, such as polyamine and KCl. Laponite can effectively plug shale pores. It considerably decreases the surface area and pore volume of shale, and SEM results show that it can reduce the porosity of shale and form a seamless nanofilm. Laponite is beneficial to increase lubricating property of drilling fluid by enhancing the drill pipes/wellbore interface smoothness and isolating the direct contact between wellbore and drill string. Besides, laponite can reduce the fluid loss volume. According to mechanism analysis, the good performance of laponite nanoparticles is mainly attributed to the disk-like nanostructure and the charged surfaces.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Laponite: a promising nanomaterial to formulate high-performance water-based drilling fluids

et al. 2020

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“…Based on evaluation procedure of shale inhibitor in drilling fluid, linear swelling test, hot-rolling recovery test and mud-making test were conducted to evaluate the inhibition performance. 38,39 Furthermore, Mt pellet soaking test was also designed to observe the inhibition performance of various inhibitors intuitively. 22,40 Thus, the prospect of gelatin composites as excellent shale inhibitors can be clearly judged.…”

Section: Inhibition Performance Of Gelatin Compositesmentioning

confidence: 99%

Improved shale hydration inhibition with combination of gelatin and KCl or EPTAC, an environmentally friendly inhibitor for water‐based drilling fluids

Jiang

Zhu

et al. 2019

J of Applied Polymer Sci

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An effective and environmentally friendly shale hydration inhibitor is essential to develop high‐performance water‐based drilling fluid with good environmental properties. For this purpose, and to minimize shale hydration under satisfactory environmental profit, composites of gelatin and inorganic salt (KCl) or organic salt (2, 3‐epoxypropyl‐trimethylammonium chloride, EPTAC) were prepared as environmentally friendly shale inhibitors to perfect the inhibitive effect. The inhibitive properties of the composites were evaluated by comparison with pure gelatin and common inhibitors. Results suggested that when 2.0 wt % gelatin and 1.0 wt % salt were combined, the composites reduced the swelling height of montmorillonite (Mt) to <1.70 mm, improved shale recovery to 80% at 150 °C and inhibited 16.0 wt % Mt mud‐making, thereby displaying excellent inhibition performance. Moreover, the gelatin composite with EPTAC seemed to perform better synergistic inhibition than that with KCl. The underlying inhibitive mechanisms were also investigated by measuring interlayer space through X‐ray diffraction, observing aggregation through electron microscopy, comparing hydrophobic modification degree by water contact angle measurement, and determining the zeta potential and water activity. The gelatin composites presented lower water activity and effectively prevented water from invading Mt. In these composites, gelatin mainly adsorbed on the surface of Mt particles, encapsulated Mt particles, and improved their hydrophobic property to a certain degree, whereas the salts entered the interlayer, expelled water, and decreased the interlayer space. Consequently, the combinations of gelatin and KCl or EPTAC had an excellent effect on inhibiting shale hydration. This study can also provide new insights into the design of totally environmentally friendly additives for water‐based drilling fluid. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47585.

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“…These substances have now largely been replaced by polymeric inhibitors, which have significantly better performance, basically by interacting with the clay minerals through two mechanisms: electrostatic interactions and encapsulation . Among the polymers studied for swelling inhibition are poly(ethylene imine), polyoxyalkyleneamine, poly(oxypropylene) polyamines, polyetheramidoamine, and polydopamine …”

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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Polyethyleneimine as shale inhibitor in drilling fluid

Cited by 87 publications

References 34 publications

Laponite: a promising nanomaterial to formulate high-performance water-based drilling fluids

Laponite: a promising nanomaterial to formulate high-performance water-based drilling fluids

Improved shale hydration inhibition with combination of gelatin and KCl or EPTAC, an environmentally friendly inhibitor for water‐based drilling fluids

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

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