Experimental investigations of clathrate hydrate inhibition in water based drilling fluid using green inhibitor

Saikia, Tinku; Mahto, Vikas

doi:10.1016/j.petrol.2016.09.022

Cited by 42 publications

(20 citation statements)

References 47 publications

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“…Formation of THF hydrates took place at readily available equilibrium temperatures of 4.4°C and ambient pressure [29]. THF hydrate and natural gas hydrates both forms sII hydrate structures, also, thermal & mechanical properties of THF hydrates are similar to methane hydrates having sI structures [6,30,31]. Therefore, THF hydrates can be used as a replacement of methane hydrates [10,29,31,32].…”

Section: Resultsmentioning

confidence: 99%

“…THF hydrate and natural gas hydrates both forms sII hydrate structures, also, thermal & mechanical properties of THF hydrates are similar to methane hydrates having sI structures [6,30,31]. Therefore, THF hydrates can be used as a replacement of methane hydrates [10,29,31,32]. All the induction time measurement experiments were repeated five times and the average value of all the five runs was taken as the final induction time and shown in Table 1.…”

Section: Resultsmentioning

confidence: 99%

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Temperature Augmented Visual Method for Initial Screening of Hydrate Inhibitors

Saikia

Mahto

2018

Oil & Gas Science and Technology - Rev. IFP Energies nouvel

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Temperature Augmented Visual Method for Initial Screening of Hydrate Inhibitors

Saikia

Mahto

2018

Oil & Gas Science and Technology - Rev. IFP Energies nouvel

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“…The surface morphology of samples was investigated using a digital imaging scanning electron microscope (model SU6600, serial no. HI‐2102‐0003, Hitachi) 35, 36 …”

Section: Methodsmentioning

confidence: 99%

Evaluation and application of poly(ethylene glycol) as lubricant in water‐based drilling fluid for horizontal well in Sulige Gas Field

Liu

Gao

Wang

et al. 2020

Polymer International

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With the increasing amount of drilling of directional wells and large-displacement wells, high torque and high resistance have become critical problems. Therefore, high-performance and environment-friendly lubricants for water-based drilling fluid are urgently needed. In this paper, poly(ethylene glycol) 2000 (PEG) was used as a lubricant, and the lubricity, inhibition, compatibility and temperature resistance of the PEG lubricant were investigated. The results show that 0.1% (mass ratio) PEG in water-based drilling fluid can reduce the friction coefficient of mud cake by 44.5%. This PEG also has certain inhibition and temperature resistance. As PEG is used with other drilling fluid additives, the compatibility was good and the lubricity of drilling fluid can be improved effectively. The lubricating mechanism of PEG was explored and the results showed that the hydrophobic alkane chains in the PEG molecules were adsorbed on the surface of bentonite, forming a hydrophobic film on the friction surface, thereby forming a lubricating layer. Field application in Sulige Gas Field showed that the PEG lubricant has good lubricity and can meet the technical requirements of corresponding horizontal wells.

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“…An important method to effectively understand hydrate management in drilling mud is to study their viscoelastic properties in the presence of hydrates. However, previous works on hydrate sediment drilling systems did not evaluate the rheology of hydrate formation in the mud. ,, They mostly conduct the rheology test of the mud separately using a viscometer/rheometer and evaluate the hydrate inhibition properties in a hydrate reactor. Therefore, the use of a rheometer to evaluate the viscoelastic properties of hydrate formation in drilling mud is useful to comprehend hydrate drilling mud systems in the presence of inhibitors/additives.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Potential Cuttings Transport Behavior of Ionic Liquids in Drilling Mud in the Presence of sII Hydrates

Bavoh

Ofei

2020

Energy Fuels

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Water-based mud used for drilling hydrate sediments is often challenged with hydrate related wellbore instability and geohazards. Ionic liquids are believed to improve the rheological and hydrate management properties of water-based mud for drilling hydrate sediments. However, the effect of hydrates and ionic liquids of the viscoelastic properties of polymer water-based mud is not well understood in gas hydrate sediment drilling operation. In this study, the amplitude sweep, frequency sweep and flow curves of tetrahydrofuran hydrate and four imidazolium ionic liquids in polymer water-based mud system were evaluated at 271.15 K using a vane geometry in a Discovery HR-1 rheometer. The ionic liquids in this study were chosen to allow a clear understanding of their alkyl chain length and anion effect and were tested at 1 wt %. The studied ionic liquids are 1-ethyl-3-methylimidazolium chloride [C2 mim][Cl], 1-butyl-3-methylimidazolium chloride [C4 mim][Cl], 1-butyl-3-methylimidazolium tetrafluoroborate [C4 mim][BF4], and 1-hexyl-3-methylimidazolium chloride [C6 mim][Cl]. The study revealed that the storage modulus (G′) and loss modulus (G″) of the polymer water-based mud were reduced in the presence of tetrahydrofuran hydrate, while its viscoelastic range was increased from 13% to 25%, due to the solid nature of hydrate present in the mud. Generally, the presence of ionic liquids in the base mud (without THF) negligibly affected the viscoelastic properties of the base mud. However, the presence of hydrates affected the viscoelastic properties of the base mud and ionic liquid systems by changing its responses a fast deformation from elastic dominance to viscous at high frequencies (>50 rad/s). Ionic liquids with longer alkyl chains ([C4 mim][Cl] and [C6 mim][Cl]) best inhibited tetrahydrofuran hydrate formation in the mud and provided suitable viscoelastic and hydraulics properties for drilling fluids. [C2 mim][Cl] and [C4 mim][BF4] promoted hydrate formation and provided minimal drilling hydraulics properties of the THF water-based mud slurry. The presence of ionic liquids in the tetrahydrofuran hydrate mud slurry increased the consistency index and decreased the yield stress, flow index and YP/PV index of the THF water-based mud slurry suitable for ensuring the safe transportation of hydrate crystals and drill cutting out of the wellbore.

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Experimental investigations of clathrate hydrate inhibition in water based drilling fluid using green inhibitor

Cited by 42 publications

References 47 publications

Temperature Augmented Visual Method for Initial Screening of Hydrate Inhibitors

Temperature Augmented Visual Method for Initial Screening of Hydrate Inhibitors

Evaluation and application of poly(ethylene glycol) as lubricant in water‐based drilling fluid for horizontal well in Sulige Gas Field

Investigating the Potential Cuttings Transport Behavior of Ionic Liquids in Drilling Mud in the Presence of sII Hydrates

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