Review of biodegradable synthetic-based drilling fluid: Progression, performance and future prospect

Razali, Siti Zulaika; Yunus, Robiah; Rashid, Suraya Abdul; Lim, Hong Ngee; Jan, B. Mohamed

doi:10.1016/j.rser.2018.03.014

Cited by 84 publications

(38 citation statements)

References 120 publications

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“…This is due to clay-rich shales dominant constituent in the formation (75%) been drilled. Numerous studies reports also on the challenge of designing low cost biodegradable environmentally friendly drilling fluid system capable of improving/curbing well instability issues (An and Yu, 2018; Razali et al., 2018).…”

Section: Introductionmentioning

confidence: 99%

A novel non-ionic surfactant extract derived from Chromolaena odarata as shale inhibitor in water based drilling mud

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Asiedu

Adenutsi

et al. 2019

Heliyon

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High performance clay swelling inhibitors play a vital role in improving inhibition characteristics of shales. The linkages between the inhibition's characteristics of the non-ionic surfactant extract from bio-based inhibitors are yet to be fully explored in the literature. This paper reports the use of a crude extract containing saponins from Chromolaena odorata (CO) leaf, which act as surfactants for inhibiting shale hydration. Determination of the inhibitive property of nonionic surfactant was made through measurements of surface-active properties, inhibition tests, filtration, rheological and strength test. The experimental findings on CO showed that it was highly compatible and very stable with conventional water-based drilling fluids (WBDFs), a highly effective shale inhibitor and a works through plugging and viscosity acting effect in the shale system.

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Section: Introductionmentioning

confidence: 99%

A novel non-ionic surfactant extract derived from Chromolaena odarata as shale inhibitor in water based drilling mud

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Asiedu

Adenutsi

et al. 2019

Heliyon

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“…The authors (Xu et al, 2018;Razali et al, 2018) recommend a combination of polyglycol and nanosilica as an effective inhibitor of hydration of active shale formation. Polyglycol makes a barrier to the penetration of water on the surface of the rock, while nanosilica penetrates into the pores of rocks displacing filtrate.…”

Section: Theoretical Discussionmentioning

confidence: 99%

New shale hydration inhibitors adapted to the downhole conditions

Zima

Badawczy²

2019

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The subject of the paper is the application of polyol compounds as active shale formation hydration inhibitors in drilling muds as the result of permanent interest from the industry in the use of this type drilling mud systems. Due to opportunity of precise compounds selection ensuring optimum properties of the drilling mud under specific down hole conditions, new agents have been developed that work effectively in a wider temperature range experienced in borehole conditions. The paper describes laboratory research carried over polyols that haven't been used in drilling fluids technology yet but may ensure optimal inhibition properties in the wide temperature range. Compounds belongs to polyglycols category like ethylene oxide or copolymers of ethylene oxide and propylene oxide with different molecular weight, are widely use so far. However, in the presented discussion other agents were used, which are products of ethoxylation and propoxylation of long-chain hydrocarbon fatty alcohols (10 and more carbon atoms). The main test that can prove drilling mud inhibitory properties is active shale dispersion investigation, routinely carried in ambient conditions. As part of the additional tests carried out, the influence of the inhibitors used on the active shale dispersion under elevated temperature conditions was determined in order to confirm the inhibitory properties of these agents in near-down hole conditions. Near down hole conditions test was also carried out on drilling muds containing polyols group compounds, ie resistance test to contamination with ions of divalent metals (Ca 2+ and Mg 2+), solid phase contamination (milled Miocene shale pretending drill cuttings) and increased temperature. Investigations were also carried out on clouding of polyol solutions in 7% KCl solution. The acquired results indicate that chemical compound presence of the hydrophobic chain derived from fatty alcohol in the molecule further increases the effectiveness of the rock hydration inhibitor. The results obtained during the study allowed for a better understanding of the inhibition mechanism of these agents on the active shale. The new rock hydration inhibitor developed as part of the work can be used in industrial conditions.

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“…To enhance the colloidal stability of nanoparticles in extreme conditions is crucial for its application as the nano-plugging agent for shale formations [16,17]. Previous strategies to ensure nanoparticles remain unaggregated focused on developing polymer coatings that impart steric and electrostatic stability.…”

Section: Of 15mentioning

confidence: 99%

Ultra-Stable Silica Nanoparticles as Nano-Plugging Additive for Shale Exploitation in Harsh Environments

Luo

et al. 2019

Nanomaterials

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Owing to the harsh downhole environments, poor dispersion of silica at high salinity and high temperature can severely restrict its application as the nano-plugging agent in shale gas exploitation. The objective of this study is to improve salt tolerance and thermal stability of silica. Herein, silica was successfully functionalized with an anionic polymer (p SPMA) by SI-ATRP (surface-initiated atom transfer radical polymerization), named SiO2-g-SPMA. The grafted pSPMA brushes on silica provided sufficient electrostatic repulsion and steric repulsion for stabilizing silica in a harsh environment. The modified silica (SiO2-g-SPMA) had excellent colloidal stability at salinities up to 5.43 M NaCl (saturated brine) and standard API brine (8 wt% NaCl + 2 wt% CaCl2) for 30 days at room temperature. Simultaneously, the SiO2-g-SPMA was stable at 170 °C for 24 h as well as stable in weakly alkali environment. Furthermore, the plugging performance of SiO2-g-SPMA in water-based drilling fluids for low permeate reservoir reached to 78.25% when adding a small amount of 0.5 wt% SiO2-g-SPMA, which effectively hindered the water invasion into formation and protected the reservoir.

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Review of biodegradable synthetic-based drilling fluid: Progression, performance and future prospect

Cited by 84 publications

References 120 publications

A novel non-ionic surfactant extract derived from Chromolaena odarata as shale inhibitor in water based drilling mud

A novel non-ionic surfactant extract derived from Chromolaena odarata as shale inhibitor in water based drilling mud

New shale hydration inhibitors adapted to the downhole conditions

Ultra-Stable Silica Nanoparticles as Nano-Plugging Additive for Shale Exploitation in Harsh Environments

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