000			01494nab a2200193 4500
005			20260520002033.0
008			260224s2011 xxu
245	0	0	_aCross-linked polystyrene microspheres as density-reducing agent in drillig fluid
260			_a _b _cagos. 2011
270			_a11/04/2012 ; 11/04/2012
300			_a5 p. ; 529 - 533
520			_aTranscripción del resumen del autor Cross-linked polystyrene (CPS) microspheres are synthesized by modified boiling soap-free emulsion polymerization. Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM) are employed to investigate the structure and morphology of the CPS. The density of the Xanthan Gum solution used to simulate drilling fluid is also measured under different factors including CPS content, rolling time, temperature, and pH value. The results show that the density of the Xanthan Gum solution is decreased at 100 °C in a basic environment by using CPS microspheres as a density-reducing agent. The density increases slightly when the temperature is increased and the rolling time becomes longer due to the reduced apertures between the microsphere aggregates. CPS is potential useful as a density-reducing agent in drilling fluid.
581			_a2
773	0		_tJournal of Petroleum Science & Engineering _g78
942			_cARTICULO
100	1		_aWang, Xinyan _952394
100	1		_aZhang, Yihe _952395
999			_c187036 _d187036