Title: Effects of Senna auriculata extract on viscoelastic, thixotropic and filtration properties of water-based drilling mud

Authors: Hameed Hussain Ahmed Mansoor; Srinivasa Reddy Devarapu; K.P. Jibin; Robello Samuel; Sabu Thomas; Swaminathan Ponmani

Addresses: Department of Petroleum Engineering, Academy of Maritime Education and Training (AMET University), Tamil Nadu, India ' Department of Petroleum Engineering and Earth Sciences, School of Engineering, University of Petroleum and Energy Studies, Dehradun, India ' School of Chemical Sciences and International and Inter University, Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, India ' Department of Petroleum Engineering, University of Houston, TX, USA ' School of Chemical Sciences and International and Inter University, Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University, Kottayam, Kerala, India ' Department of Petroleum Engineering, Academy of Maritime Education and Training (AMET University), Tamil Nadu, India

Abstract: The limitations and setbacks observed in the nanomaterials enhanced water-based mud (WBM), led to the emergence of eco-friendly mud. In this study, a better enhancement in the rheological properties of Senna auriculata enhanced water-based mud (SWBM) at 30°C, 70°C and 110°C is observed. Different concentrations, viz., 0.5 wt. %, 1.0 wt. % and 1.5 wt. % of Senna auriculata are used to study its effects on the rheological and filtration properties of WBM. Thermal stability and aging studies are performed for both WBM and SWBM. The experimental results are then modelled using rheological models. The results reveal that Senna auriculata improve the thermal stability and rheological properties of drilling mud and significantly decrease the American Petroleum Institute (API) filtrate. The rheological performance data of NFWDF project a better fit with the Herschel-Bulkley model and suggest improvement in rheological and filtration properties. This study serves as an important prelude for the development of new environmentally friendly, biodegradable, recyclable and cost-effective additives for WBM to improve its rheological properties. This research is also expected to aid the industry by resolving major issues in deep well drilling and HPHT drilling. [Received: May 10, 2022; Accepted: September 17, 2022]

Keywords: mud; Senna auriculata; rheology; frequency sweep; thixotropy.

DOI: 10.1504/IJOGCT.2023.129576

International Journal of Oil, Gas and Coal Technology, 2023 Vol.32 No.4, pp.311 - 339

Received: 18 Apr 2022
Accepted: 17 Sep 2022
Published online: 14 Mar 2023 *

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