Assessing the Impact of a Novel Organoclay on the Performance of Oil-Based Drilling Fluids DOI
Ahmed Abdulhamid Mahmoud, Rahul Gajbhiye, Salaheldin Elkatatny

et al.

Published: May 12, 2025

Abstract Oil-based drilling fluids (OBDFs) are essential for in challenging environments, particularly those with high-pressure and high-temperature (HPHT) conditions. However, maintaining optimal OBDF performance such extreme environments requires specialized additives. This study investigates the potential of a novel organoclay (OC), Claytone-3, as rheological additive to enhance OBDFs under HPHT Claytone-3's is directly compared pre-exisiting OC (MC-TONE) quantify improvements offered by this additive. To understand structural compositional differences between two OCs, comprehensive characterization was conducted. involved employing several techniques including X-ray diffraction (XRD), fluorescence (XRF), scanning electron microscopy (SEM), particle size distribution (PSD). The impact Claytone-3 on critical mud properties then rigorously evaluated through series experiments designed simulate downhole These focused key aspects fluid performance, emulsion stability, sag tendency, properties, filtration properties. Static dynamic tests were conducted at 275/150°F evaluate ability prevent barite sag, common issue wells. Rheological plastic viscosity (PV), yield point (YP), PV/YP ratio, measured 275°F after hot rolling (AHR) 16 hours 500 psi differential pressure assess fluid's carrying capacity hole cleaning efficiency. Finally, API performed determine effectiveness minimizing loss forming thin, impermeable filter cake. results demonstrate that enhances across all tested parameters. exhibited 2% improvement stability reference effectively mitigated both static ensuring suspension even Furthermore, yielded 1% increase PV, an 11% YP, 10% ratio MC-TONE formulated fluid, indicating improved potential. demonstrated reduction filtrate volume cake thickness, contributing wellbore stability. underscores high-performance environments. By improving resistance, control, offers promising solution enhancing efficiency, reducing non-productive time, mitigating risks associated operations.

Language: Английский

Evaluation of Claytone-ER as a novel rheological additive for enhancing oil-based drilling fluid performance under high-pressure high-temperature conditions DOI
Ali Mahmoud, Rahul Gajbhiye, Salaheldin Elkatatny

et al.

Clays and Clay Minerals, Journal Year: 2025, Volume and Issue: 73

Published: Jan. 1, 2025

Language: Английский

Citations

0
An Amide-Carboxylic Acid Compound as Gel Structure Breaker to Improve the Rheology of Oil-Based Drilling Fluids DOI Creative Commons

Yu Zhang,

Kaihe Lv, Xianbin Huang

et al.

Gels, Journal Year: 2025, Volume and Issue: 11(2), P. 97 - 97

Published: Jan. 30, 2025

High-density oil-based drilling fluids (OBDFs) are widely used in operations, but during their application, the viscosity of fluid typically increases due to enhancement solid-phase gel network structure. This can lead issues such as impaired circulation, increased blowout risks, and accelerated drill bit wear. In this study, a compound (OCD), synthesized from tall oil fatty acids, diethylene triamine, maleic anhydride, was developed disrupt strong structure high-density OBDFs, thereby reducing OBDFs. Rheological properties, including viscosity, yield point, strength, were tested evaluate viscosity-reducing effect OCD on both laboratory-prepared field Additionally, effects electrical stability (ES), high-temperature high-pressure (HTHP) filtration loss, settling also tested. Finally, mechanism analyzed through contact angle tests, particle size analysis, microstructural observations. The experimental results demonstrated that could effectively reduce various Adding 2 wt% reduced apparent OBDFs by 20.4%, with density 1.7 g/cm3 29.2%. Furthermore, showed good compatibility having negligible HTHP loss ES, maintained performance even at 180 °C. Mechanistic studies revealed enhanced hydrophobicity solid phase, solids, prevented formation excessive structures oil. Therefore, study provides significant practical value for controlling rheological system

Language: Английский

Citations

0
Enhancing the Performance of Oil-Based Drilling Fluids with a Novel Modified Clay DOI
Ahmed Abdulhamid Mahmoud, Rahul Gajbhiye, Salaheldin Elkatatny

et al.

International Petroleum Technology Conference, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Abstract Oil-based drilling fluids (OBDFs) are essential for successful well operations in challenging environments, offering superior lubricity, wellbore stability, and inhibition compared to water-based alternatives. However, optimizing their performance, particularly under high-pressure high-temperature (HPHT) conditions, necessitates specialized additives enhance rheology, filtration control, emulsion stability. This research aims evaluate the impact of Claytone-ER on rheological properties OBDFs its potential fluid performance HPHT environments. Its is a conventional OC (MC-TONE) assess benefits this novel additive. To thoroughly investigate OBDF multiple laboratory tests were conducted. These assessed key mud properties, including density, electrical resistance settling (sagging). The fluid's flow behavior (rheology) ability prevent loss (filtration) also measured simulated downhole conditions (275°F 500 psi differential pressure). In addition testing, composition structure organoclays analyzed using various techniques. X-ray diffraction fluorescence (XRD XRF) provided information about mineral composition, while scanning electron microscopy (SEM) particle size distribution (PSD) analysis revealed details shape clay particles. Sagging behavior, critical aspect was evaluated both static (275°F) dynamic (150°F) conditions. comprehensive evaluation aimed understand how influences ultimately contributing development stable, high-performance suitable demanding results demonstrate that enhanced stability by 3% without impacting density. Both sag effectively mitigated, indicating preventing barite Furthermore, incorporation significantly fluid. Specifically, marked improvement observed parameters, with plastic viscosity (PV) increasing 26%, yield point (YP) exhibiting near doubling (98% increase), YP/PV ratio demonstrating substantial 56% rise reference OC. enhancements suggest improved carrying capacity hole cleaning potential. Additionally, gel strength (GS) resulting an 8% decrease filtrate volume 6% reduction filter cake thickness. study first as additive OBDFs, specifically findings highlight Claytone-ER's simultaneously mitigation, control. attributes offer optimize minimizing complications, reducing non-productive time, improving

Language: Английский

Citations

0
A Novel Rheological Additive for High-Performance Oil-Based Drilling Fluids in High-Pressure and High-Temperature Conditions DOI
Ahmed Abdulhamid Mahmoud, Rahul Gajbhiye, Salaheldin Elkatatny

et al.

Published: April 21, 2025

Abstract Drilling operations in high-pressure and high-temperature (HPHT) environments present significant challenges to drilling fluid performance. Oil-based fluids (OBDFs) play a critical role ensuring wellbore stability, controlling formation pressure, facilitating efficient such challenging environments. However, maintaining optimal OBDF performance HPHT conditions requires careful formulation the incorporation of high-performance additives. This study focuses on evaluating novel organoclay (OC), Claytone-II, as rheological additive OBDFs under conditions. Claytone-II’s potential enhance properties is assessed through comparative analysis with commercially available OC (MC-TONE). A comprehensive characterization both OCs, involving techniques X-ray diffraction (XRD), fluorescence (XRF), scanning electron microscopy (SEM), particle size distribution (PSD), was conducted understand structural compositional differences contributing their To assess its rigorously compared MC-TONE series experiments simulating downhole impact key properties, including emulsion sag resistance, filtration characteristics were evaluated. Static tests evaluated at 275°F vertical inclined (45°) configurations. Moreover, dynamic measured 150°F simulate behavior during circulation. Furthermore, determined after hot rolling (AHR) samples for 16 hours (275°F 500 psi differential pressure). The results demonstrate that Claytone-II offers improvements across all parameters. It exhibited enhanced stability (8% increment), effectively mitigating separation oil water phases demonstrated superior preventing settling weighting agent (barite) consistent density even high temperatures. plastic viscosity (PV), yield point (YP), PV/YP ratio improved by 7.5%, 14%, 6% increments respectively. indicates fluid’s carrying capacity hole cleaning efficiency, crucial removing cuttings stability. Finally, contributed better control reducing loss increment) forming thinner, more impermeable filter cake (12.5% which essential damage integrity. highlights demanding Its commercial counterpart optimized control. By risks associated drilling, promising solution enhancing efficiency improving overall success projects.

Language: Английский

Citations

0
Assessing the Impact of a Novel Organoclay on the Performance of Oil-Based Drilling Fluids DOI
Ahmed Abdulhamid Mahmoud, Rahul Gajbhiye, Salaheldin Elkatatny

et al.

Published: May 12, 2025

Abstract Oil-based drilling fluids (OBDFs) are essential for in challenging environments, particularly those with high-pressure and high-temperature (HPHT) conditions. However, maintaining optimal OBDF performance such extreme environments requires specialized additives. This study investigates the potential of a novel organoclay (OC), Claytone-3, as rheological additive to enhance OBDFs under HPHT Claytone-3's is directly compared pre-exisiting OC (MC-TONE) quantify improvements offered by this additive. To understand structural compositional differences between two OCs, comprehensive characterization was conducted. involved employing several techniques including X-ray diffraction (XRD), fluorescence (XRF), scanning electron microscopy (SEM), particle size distribution (PSD). The impact Claytone-3 on critical mud properties then rigorously evaluated through series experiments designed simulate downhole These focused key aspects fluid performance, emulsion stability, sag tendency, properties, filtration properties. Static dynamic tests were conducted at 275/150°F evaluate ability prevent barite sag, common issue wells. Rheological plastic viscosity (PV), yield point (YP), PV/YP ratio, measured 275°F after hot rolling (AHR) 16 hours 500 psi differential pressure assess fluid's carrying capacity hole cleaning efficiency. Finally, API performed determine effectiveness minimizing loss forming thin, impermeable filter cake. results demonstrate that enhances across all tested parameters. exhibited 2% improvement stability reference effectively mitigated both static ensuring suspension even Furthermore, yielded 1% increase PV, an 11% YP, 10% ratio MC-TONE formulated fluid, indicating improved potential. demonstrated reduction filtrate volume cake thickness, contributing wellbore stability. underscores high-performance environments. By improving resistance, control, offers promising solution enhancing efficiency, reducing non-productive time, mitigating risks associated operations.

Language: Английский

Citations

0