| Baroid
fluid helps free stuck pipe
Posted: 11 May 2003
HOUSTON, Texas — Baroid, a Halliburton product
service line, has developed a spotting fluid, QUIK-FREE, which is
designed to free differentially stuck pipe.
Stuck pipe can be a major source of non-productive time during
drilling operations. When the problem occurs, timely removal of
the pipe is important since every minute that the pipe remains stuck
increases the likelihood that the operation will end up as an expensive,
time-consuming "fishing job".
QUIK-FREE spotting fluid can be mixed and placed rapidly because
it requires none of the additives typically associated with an invert
emulsion spotting fluid. On average, it shows significant results
four to six hours after it is placed downhole.
Other spotting fluids can require up to 24 hours of soak time.
"QUIK-FREE spotting fluid works by breaking the capillary
forces holding the pipe against the wellbore wall," said Tom
Carlson, Technology Leader, Solutions Group, Halliburton Energy
Services Group. "The wallcake dehydrates and shrinks, allowing
the pipe to be worked free. After the pipe is free, the QUIK-FREE
spotting fluid can be incorporated into an active water-based drilling
fluid system, because its environmentally-friendly composition doesn't
require capturing and disposing of the fluid."
On a disposal well in Louisiana, QUIK-FREE spotting fluid was able
to save an operator approximately two days of rig time plus an estimated
$50,000 "fishing job." On the project, the drillstring
became stuck in a 12 ¼ -inch hole at 4,022 feet measured
depth with no up or down movement.
After 12 hours of trying to free the pipe, a nine pounds per gallon
(ppg) QUIK-FREE spotting fluid was pumped into the stuck zone. After
a five-hour soak period, the pipe could be moved downward 14 feet.
For the next 20 hours, one barrel of QUIK-FREE spotting fluid was
pumped each hour.
At this point circulation was established to wash the dehydrated
filtercake from around the pipe, after only 15 minutes of circulation
the pipe became free.
The entire volume of QUIK-FREE spotting fluid was then incorporated
into the active polymer system with no adverse affect on the fluid
properties.
QUIK-FREE spotting fluid is compatible with fresh and salt water
drilling fluids and can be incorporated into active mud systems
without adverse effects on any of the properties.
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.
Halliburton, founded in 1919, is one of the world's largest providers
of products and services to the petroleum and energy industries.
The company serves its customers with a broad range of products
and services through its Energy Services Group and Engineering and
Construction Group business segments.
For more information see www.halliburton.com.
Posted by Richard Price,
Editor Pipeline Magazine
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