000			02899ntm a2200349 i 4500
003			MY-KuUP
005			20260806115316.0
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008			260806t20252025my a|||fr|||| 000 0 eng d
020			_aTHE0010913 (Local) _qHardback
040			_aUMPSA _beng _cUMPSA _erda
090			_aFTKKP .Z44 2025 r Bc.
100	1		_aPoh, Zheng Da, _eauthor.
245	1	0	_aRheological properties of bio-based oilwell cement retarder / _cPoh Zheng Da
264		1	_aKuantan, Pahang : _bUMPSA, _c2025
264		4	_c© 2025
300			_axi, 45 pages : _billustrations ;
336			_2rdacontent _atext
337			_2rdamedia _aunmediated
338			_2rdacarrier _avolume
347			_2rda _atext file _bPDF
500			_aFaculty of Chemical and Process Engineering Technology
502			_aFinal Year Report (Bachelor of Technology Mechanical Engineering (Petroleum) with Hons ) -- Universiti Malaysia Pahang Al-Sultan Abdullah - 2025
504			_aInclude bibliographical reference
520	3		_aDuring oil well cementing applications, retarders are added to delay the setting time of the cement slurry to achieve pumpability and fluidity. However, in deep and ultra deep oil wells with temperatures exceeding 120 °C, conventional retarders used in the oil industry do not function desirably. Resulting in abnormal gelation of the cement slurry and thickening time reversal. Previous studies synthesized polymer retarders with tartaric acid to overcome these issues. However, at a prolonged temperature polymer degradation occurs and these issues have not been completely eradicated. Also, research on retarders from biomass that can completely inhibit thickening time reversal and abnormal gelation has not been investigated and the mechanisms are still tenuous in literature. Hence, this study was designed to fill these gaps in knowledge. Therefore, in this study lignosulfonate retarder was synthesized from empty fruit bunch (EFB) for high temperature high pressure (HTHP) oilwells. The properties of the retarder were determined via scanning electron microscopy (SEM), Four transform infrared spectroscopy (FTIR), and gas chromatography Mass spectrometry (GCMS). Likewise, the thermal stability of the retarder was investigated using thermogravimetric analysis (TGA). Finally, the performance of the retarder was evaluated. The TGA results revealed that the retarder was stable up to 650 °C. The rheological properties showed a good dispersing effect, reducing cement pastes' dynamic yield stress and plastic viscosity. The results demonstrate the feasibility of using EFB as a retarder for HTHP oilwells.
610	2	0	_aFaculty of Chemical and Process Engineering Technology _xDissertations
650		0	_aUniversities and colleges _xDissertations
650		0	_aTheses _xDissertations
856			_uhttps://umpir.ump.edu.my/id/eprint/48051
942			_2lcc _cPSM
999			_c105409 _d105415