Effects of ethoxylated polyamine addition on water-based drilling fluid

Mohd Dzul Khairi Mohd Saparti, Rosiah Rohani, Ying Tao Chung, Izzati Izni Yusoff, Wan Rosli Wan Sulaiman

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Drilling fluid is a major component of a successful drilling process. However, the interaction between the drilling fluid and the shale with hydration property has led to the high fluid loss rate and shale swelling issues. Advance additives such as Ethoxylated Polyamine or typically known as Clayseal Plus (CP) is used as a shale control agent in water-based muds (WBM) which retard the rate of clay swelling and thus reduced the wellbore instability problems. Swell inhibition test showed that 3.5 v% CP was the optimum concentration in the drilling fluid. DSC analysis showed the crystallinity temperature and melting point of the filter cake samples were at 122.5 °C and 250 o C, respectively. Addition of CP into the drilling fluid also produced a filter cake with a smoother surface with lower filtrate volume. As expected, higher distribution of N in filter cake sample +CP was indicated to confirm the presence of CP as a polyamine base additive. The rheological analysis displayed that sample +CP yield superior viscoplastic behavior while drilling fluid-CP has uneven rheological trends at the lower shear rates regime. Methylene blue capacity test showed that drilling fluid sample +CP has lower value of methylene blue capacity (C MBT ). In addition, the study found that the concentration of ion [OH - ] of both filtrate samples +CP and-CP were 0 mg/L while the concentrations of ion [CO 3 2- ], ion [HCO - ], chloride ion (c Cl ), sodium chloride (c NaCl ) and total hardness (c CA + Mg ) for sample +CP were higher than sample-CP.

Original languageEnglish
Pages (from-to)149-166
Number of pages18
JournalJournal of Engineering Science and Technology
Volume14
Issue number1
Publication statusPublished - 1 Jan 2019

Fingerprint

Drilling fluids
Shale
Water
Ions
Swelling
Sodium chloride
Hydration
Shear deformation
Melting point
Polyamines
Drilling
Clay
Hardness
Fluids

Keywords

  • Clayseal Plus
  • Ethoxylated polyamine
  • Fluid loss
  • Shale inhibitor
  • Shale swelling

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Saparti, M. D. K. M., Rohani, R., Chung, Y. T., Yusoff, I. I., & Sulaiman, W. R. W. (2019). Effects of ethoxylated polyamine addition on water-based drilling fluid. Journal of Engineering Science and Technology, 14(1), 149-166.

Effects of ethoxylated polyamine addition on water-based drilling fluid. / Saparti, Mohd Dzul Khairi Mohd; Rohani, Rosiah; Chung, Ying Tao; Yusoff, Izzati Izni; Sulaiman, Wan Rosli Wan.

In: Journal of Engineering Science and Technology, Vol. 14, No. 1, 01.01.2019, p. 149-166.

Research output: Contribution to journalArticle

Saparti, MDKM, Rohani, R, Chung, YT, Yusoff, II & Sulaiman, WRW 2019, 'Effects of ethoxylated polyamine addition on water-based drilling fluid', Journal of Engineering Science and Technology, vol. 14, no. 1, pp. 149-166.
Saparti, Mohd Dzul Khairi Mohd ; Rohani, Rosiah ; Chung, Ying Tao ; Yusoff, Izzati Izni ; Sulaiman, Wan Rosli Wan. / Effects of ethoxylated polyamine addition on water-based drilling fluid. In: Journal of Engineering Science and Technology. 2019 ; Vol. 14, No. 1. pp. 149-166.
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