... surface materials and two different rocks over a wide range of normal stresses in up to four different fluids. Polished PDC cutters are shown to have lower frictional forces on the face of the cutter than standard cutters in both water and mineral oil. The measured friction coefficients were generally...

... can be highly asymmetric, the system is relatively insensitive to minor variations in annulus shape except when the vibrating cylinder is not centrally located within the fluid region or the annulus size itself is small. Contributed by the Petroleum Division and presented at the International...

... that are larger than those of classical severe slugging. The stability of fluids production from an S-shaped riser have been studied in three respects: firstly, the stability of the flow regimes, the response of the system to increases in pressure and finally the liquid production characteristics during...

.... 07 06 1999 01 08 2001 25 03 2002 oil technology engineering safety fluids modelling flow control It is a well-known fact that during drilling, the influx of formation fluid into wellbore could be extremely dangerous. If timely actions are not taken...

...Jesus R. Rodriguez; Fathi Finaish; Shari Dunn-Norman A shroud is commonly used around the motor of an electrical submersible pump (ESP) to accelerate reservoir fluids past the motor for cooling. Standard practice has been to design the shroud/motor configuration relative to the casing using...

... and gas, and kicks or lost circulation depending on the pressure difference between the wellbore annulus and formation. The model requires simple data input and is able to handle complicated drilling cases such as casing installation, changing drilling fluids, and drillpipe/coiled tubing connections...

... terrain slugging and to optimize fluid transport from wellhead to downstream processing. We considered the effects of separator location and separation efficiency on production system behavior. We found that there is an optimal amount of gas underflow into the liquid line and there is an optimum location...