Advances in Inhibitive Water-Based Drilling Fluids—Can They Replace
Oil-Based Muds?

Patel, Arvind H.; Stamatakis, Stamatakis; Young, Steve; Friedheim, James E.

doi:10.2523/106476-ms

Cited by 34 publications

(12 citation statements)

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“…This test provides a simulation of the long exposure that the shale cuttings face when in contact with the fluid under average drilling conditions, when cuttings are brought up and removed from the borehole (Patel et al, 2007). In this test, 50.0 g of sized sample A1 were classified employing 4 and 8 mesh sieves, 4.76 and 2.38 mm, respectively.…”

Section: Hot-rolling Cuttings Dispersion Testsmentioning

confidence: 99%

“…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%

“…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. Linear non-ionic polymers, such as polyglycols (PEGs) and polyols, although showing low toxicity, present limited field applications (Patel et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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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Section: Hot-rolling Cuttings Dispersion Testsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

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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“…The bentonite inhibition test was used to determine the ability of a product to prevent bentonite from yielding and maintain a low rheological profile [10]. The maximum amount of API bentonite inhibited by a single treatment of shale inhibitor could be determined by this test [18].…”

Section: Bentonite Inhibition Testmentioning

confidence: 99%

“…This becomes the starting point for the evolution of some exotic salts (brines) as well as ammonium and aminebased chemistry for shale inhibition in high-performance water-based drilling fluids [7,8]. A vast number of amine and quaternary amine compounds have been introduced and applied in the field since the 1960s [9][10][11]. Based on the ''rule-based'' criteria for designing new and effective shale inhibitors, polyether amines have been introduced as shale inhibitors and believed to be the best available technology for shale inhibition in recent years [12,13].…”

Section: Introductionmentioning

confidence: 99%

Study of 4, 4′-methylenebis-cyclohexanamine as a high temperature-resistant shale inhibitor

et al. 2016

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In order to develop high-performance water-based drilling fluid with the aim of meeting the increasing requirement of drilling industry, highly inhibitive and high-temperature-resistant shale inhibitors are essential. In this study, 4, 4 0 -methylenebis-cyclohexanamine was introduced as a potential shale inhibitor. The inhibitive properties of the amine compound in comparison with currently available polyether diamine inhibitor were evaluated using bentonite inhibition test, shale cuttings hot-rolling dispersion test, linear swelling test, and pressure transmission test. The inhibitive mechanism was investigated with zeta potential measurement, X-ray diffraction analysis, and contact angle measurement. The results indicated that 4, 4 0 -methylenebis-cyclohexanamine can inhibit shale hydration and dispersion effectively, and prevent pressure transmission to a certain extent, performing better than that of polyether diamine. Furthermore, the new diamine provides reliable thermal stability as high as 220°C, preserving the benefits of high-temperature wells application. This novel diamine inhibits shale hydration and dispersion with the combination of chemical inhibition and physical plugging. The intercalation into the interlayer of clay with monolayer collapses the hydrated clay structure and expels the water molecules. After adsorption, clay surface became more hydrophobic, which prevents the imbibition of water. The variation of solubility separates the compound from the solution, which can plug the micro-pores of shale and prevent fluid invasion.

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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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Advances in Inhibitive Water-Based Drilling Fluids—Can They Replace Oil-Based Muds?

Cited by 34 publications

References 0 publications

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

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

Study of 4, 4′-methylenebis-cyclohexanamine as a high temperature-resistant shale inhibitor

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

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