Nonionic polyol esters as thinner and lubricity enhancer for synthetic-based drilling fluids

Kania, Dina; Yunus, Robiah; Omar, Rozita; Rashid, Suraya Abdul; Jan, Badrul Mohamed; Arsanjani, Niloofar

doi:10.1016/j.molliq.2018.07.014

Cited by 21 publications

(11 citation statements)

References 27 publications

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“…The other important application of polyol compounds in drilling fluids is related to their ability to adsorb on metal surface. These chemical compounds have the ability to reduce the coefficient of friction on the metal-metal and metal-rock contact (Akram et al, 2016;Aziz et al, 2016;Luyster et al, 2016;Jasiński, 2017;Sayindla et al, 2017;Xiao et al, 2017;Zhao et al, 2017;Zhu et al, 2017;Kania et al, 2018). Propylene oxide polymers have the ability to reduce the coefficient of friction, the most effective was polypropylene glycol with the lowest molecular mass of 200 u.…”

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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Section: Theoretical Discussionmentioning

confidence: 99%

New shale hydration inhibitors adapted to the downhole conditions

Zima

Badawczy²

2019

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“…5). However, the peak intensity of sp 3 hybrid carbon after aging at 240 ℃ slightly increased compared with that of the room temperature. This maybe attributed with the enhanced degree of graphene defects at high temperature.…”

Section: The Tribological Properties Of Drilling Uidsmentioning

confidence: 90%

“…During the drilling and extraction process of ultra-deep wells, the contact between the drilling pipe and casing made the casing severe worn [1,2] and increased the power consumption [3]. Moreover, the lubrication properties of drilling uid under the temperature of ultra-deep wells bottom hole above 200 ℃ would become invalid and may further cause collapse [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Organic-Sulfonate Functionalized Graphene as a High Temperature Lubricant for Efficient Antifriction and Antiwear in Water Based Drilling Fluid

et al. 2022

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The lubricity of drilling uid resistant to high-temperature over 200℃ is still one of the technological breakthroughs. In this study, the graphene modi ed with sodium dodecylbenzene sulfonate (SDBS) was selected as a resistant to high-temperature lubricant. Our results show that the drilling uids have high stability after aging at 240°C with the assistance of the SDBS/graphene. Excitingly, the tribological performance test results revealed that the SDBS/graphene exert excellent anti-friction and anti-wear properties. Compared with the base slurry, the friction coe cient and wear rate of the SDBS/graphene slurry are reduced by 76% and 59%, respectively. The deposited lm composed of graphene, Al 2 O 3 , SiO 2 , Fe 2 O 3 , FeSO 4 actualized the protection of the sliding contact zone, proving that the sulfonate group on the SDBS/graphene contributed to prompt the deposition of the graphene and bentonite and then enhanced tribological properties of the drilling uids. Overall, the graphene modi ed with SDBS is expected to solve the di culty to form effective deposited lm and poor lubricity of the drilling uid under high-temperature.

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“…Moreover, the hydrophobic chains in TMPE provide the affinity to attract molecules on the organoclay and its high molecular mass also contributes to a maximum adsorption density. Hence, TMPE with three hydrophobic chains is suitable as a drilling mud with moderate solid content, as compared with PEE that has four hydrophobic chains that is more apt for high solid-content mud (Kania et al, 2018;Kania et al, 2021).…”

Section: Drilling Fluidmentioning

confidence: 99%

“…Plant oil-based TMPE with three-branched chains of ester groups has provided an excellent friction reduction and antiwear performance although PEE was reported as the best candidate to the synthetic drilling mud formulation (Kania et al, 2018). As a recent off-shore regulations requirement, an enhancement of the synthetic drilling mud lubricity becomes crucial.…”

Section: Prospects and Challengesmentioning

confidence: 99%

Prospects of Plant-Based Trimethylolpropane Esters in the Biolubricant Formulation for Various Applications: A Review

et al. 2022

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Biodegradable lubricants from renewable feedstocks have been successfully developed to meet the demands of new machines with stringent requirements of the global standards, which address sustainability and environmental policy. Trimethylolpropane ester (TMPE) has been extensively evaluated as a biolubricant base stock and occasionally used as an additive, due to their low toxicity and excellent biodegradability. The formulation of high-performance TMPE-based lubricants involves addition of surface additives, multifunctional additives, and solid nano particles. This review focuses on the development of plant-based TMPE formulation for various applications, namely food-grade lubricant, engine oil, drilling fluid, insulating fluid, metal working fluid, hydraulic and heat transfer fluids. Even though plant-based TMPE lubricants have huge advantages over mineral oils, they have other challenging issues such as limited load-bearing capacity, hygroscopic properties, and high risk of toxic emission owing to additives selection. The details on the performance characteristics of TMPE as base stocks and additives are discussed, including the current prospects and challenges in the respective areas. This review concludes with a brief discussion on suggestions and recommendations for future advancement in the usage of TMPE and the remaining issues that must be overcome to allow for its full potential to be realized.

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Nonionic polyol esters as thinner and lubricity enhancer for synthetic-based drilling fluids

Cited by 21 publications

References 27 publications

New shale hydration inhibitors adapted to the downhole conditions

New shale hydration inhibitors adapted to the downhole conditions

Organic-Sulfonate Functionalized Graphene as a High Temperature Lubricant for Efficient Antifriction and Antiwear in Water Based Drilling Fluid

Prospects of Plant-Based Trimethylolpropane Esters in the Biolubricant Formulation for Various Applications: A Review

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