METHODS OF TREATING WELLBORES WITH RECYCLABLE FLUIDS
摘要
<p>Methods for treating wellbores using fluids containing a sphingan heteropolysaccharide which contributes viscosity stability and a decrease in friction pressure. Some methods are clean-out operations using recyclable-viscosity fluids containing at least a sphingan heteropolysaccharide and an optional salt. Others include methods of pumping fluids incorporating sphingan heteropolysaccharides to reduce pumping frictional pressure.</p>
申请公布号
EP1999225(B1)
申请公布日期
2010.05.12
申请号
EP20070735176
申请日期
2007.03.19
申请人
SERVICES PETROLIERS SCHLUMBERGER SA;SCHLUMBERGER HOLDINGS LIMITED;SCHLUMBERGER TECHNOLOGY B.V.;PRAD RESEARCH AND DEVELOPMENT N.V.
