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Halliburton
develops downhole lift while you drill sweeping agent
Posted: 19 February 2003
HOUSTON, Texas — Baroid, a Halliburton
product service line, has developed BAROLIFT™, a product that
allows operators to clean downhole during drilling operations by
increasing the carrying capacity of drilling fluids without increasing
viscosity. As part of Baroid's Lift While You Drill™ technologies,
the product is a specially treated synthetic fiber developed from
100 percent virgin materials that are capable of performing well
in any type of drilling fluid. Its interlocking fibers keep drill
cuttings in suspension, optimizing downhole tool performance and
improving the rate of penetration. It is compatible with water,
oil, and synthetic-based fluids. It is non-toxic and unaffected
by sub-freezing temperatures as with some liquid polymers.
The BAROLIFT product efficiently sweeps cuttings from both vertical
and horizontal wells. It reduces the formation of, as well as breaks
up, cuttings beds and helps to avoid building high viscosities through
the entire system.
An example of the product's success occurred when an operator was
running 340 feet of 17 ½ -inch surface pipe. After reaching
the casing point, one 15-pound container of BAROLIFT sweeping agent
mixed in 30 barrels of fresh water was circulated through the hole
unloading a large amount of fine gravel. This was in contrast to
previous area offset wells where the surface pipe had to be laid
down or washed the last 80-feet to 150-feet; BAROLIFT fiber enabled
the operator to run casing to bottom without incident.
On another well, a sweep was necessary to clean out the casing
on a 15,200-foot well with five-inch liner. Since the viscosity
of the heavily weighted fluid could not be increased without jeopardizing
the hole, BAROLIFT sweeping agent was chosen over a high-viscosity
polymer sweep. After efficiently cleaning the hole, the BAROLIFT
fiber was easily removed over the shaker screens with no resulting
fluid losses, blinding, or sticking. Additional cuttings were recovered
and the pump pressure, which had increased due to un-removed cuttings,
returned to normal.
Halliburton Energy Services, a business unit of Halliburton, provides
products, services, and integrated solutions for oil and gas exploration,
development, and production. Capabilities range from initial evaluation
of producing formations to drilling, completion, stimulation, and
well maintenance — for a single well or an entire field. With
more than 300 service centers in more than 100 countries, Halliburton
possesses the global perspective that is increasingly important
for energy exploration and production.
For more information see www.halliburton.com.
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