It has become a well-known fact that finding sustainable solutions to the unavoidable high
pressure losses accompanying pipeline flows to increase the pumping capacity without …

In the petroleum industry, the transport of offshore crude oil via pipelines may suffer damage
known as wax precipitation. This reduces the flow capacity of the crude oil, reducing its …

Modern production methods and environmental constraints demand chemical solutions. And
as oilfields age, the need for chemicals to ensure steady production increases. Production …

Measurements of drag-reduction are presented for oil–water flowing in a horizontal 0.0254
m pipe. Different oil–water configurations were observed. The injection of water soluble …

A literature survey of the published work on drag reduction by Drag Reducing Agent (DRA)
in two-phase flow is reviewed. Characteristics of the two-phase flow with drag reducing …

Precise prediction of the gas–liquid slug flow is crucial for proper design and operation at
various industrial processes. This paper provides a comprehensive review of published …

The effect of a drag-reducing polymer (DRP) in the water phase during horizontal oil–water
flow was investigated in a 14 mm ID acrylic pipe. Oil (5.5 mPa s, 828 kg/m3) and a co …

Intermittent two-phase flows are commonly encountered in the petroleum industry. Much
attention has been focused by several researchers on intermittent flows existing at low …

The effect of drag‐reducing agents (DRAs) on fluid flows in straight pipes has been well
documented. Key among these is the effect of DRAs on turbulence statistics (Reynolds …

Flow patterns, the pressure drag reduction and the heat transfer in a vertical upward air–
water flow with the surfactant having negligible environmental impact were studied …