Studying the Effect of Some Surfactants on Drag Reduction of Crude Oil Flow

Table 1

Specification of surfactants.

Surfactants	Scientific name	Chemical structure	Molecular weight
SDBS	Sodium dodecyl-benzene sulfonate	C12H25C6H4SO3–Na	348
SLS	Sodium lauryl sulfate	C12H26O4S–Na	289
SLES	Sodium laureth Sulfate	CH3(CH2)10CH2 (OCH2CH2)3OSO3–Na	372
SS	Sodium stearate	C17H35COO–Na	306