000 01570nab a2200193 4500
005 20260520001754.0
008 260224s2009 xxu
245 0 0 _aRheological properties of biopolymers drilling fluids
260 _a
_b
_cagos. 2009
270 _a14/06/2010 ; 11/06/2010
300 _a7 p. ; 84-90
520 _aTranscripción del resumen del autor. Drilling muds are complex fluids, generally used to clean the well, maintain hole integrity, transport the rock cuttings, lubricate the drill bit and control formation pressures. Two basic types of drilling fluids are used, water based muds (WBM) and oil based muds (OBM). OBM are very effective but polluting, and environmental regulations continue to restrict the use of oil based muds in many areas of the world. In order to reduce the mud toxicity, we developed water based mud systems using two biopolymers, which are xanthan gum and scleroglucan, generally proposed for high permeability reservoirs or for complex geometries such as horizontal wells. In this study, we evaluated the rheological behaviour of different samples and we determined the effect of components such as clay, calcium carbonate and potassium chloride. This formulations exhibit non-Newtonian rheological behaviour which can be described well by the tree parameter in Herschel–Bulkley rheological model.
581 _a3-4
773 0 _tJournal of Petroleum Science & Engineering
_g67
942 _cARTICULO
100 1 _aHamed, Samira Baba
_942553
100 1 _aBelhadri, Mansour
_942554
999 _c170930
_d170930