gastreat165fbf
DESCRIPTION
http://www.champ-tech.com/Portals/0/PDF/CaseHistories/2013/GasTreat165FBF.pdfTRANSCRIPT
Corrosion Protection and Inhibition Solutions
CASE HISTORY: GaS TreaT® 165FB-F
The Problem
Operators in the Eagle Ford Shale play have been faced with several
challenges presented by the use of triazine, such as:
Dump lines or dump valves plug: The spent triazine builds up in the
secondary vessel and carries over in the gas line. This requires the
operator to either shut in the wells or flare the gas (which may result
in EPA fines depending on permitting requirements). The lines then
have to be opened up and the spent triazine must be mechanically
removed, which incurs additional costs.
Products not properly winterized: The product solidifies in the
vessels. The operator is forced to shut in the producing wells
associated with the Ultrafab unit or flare the gas, which may result
in fines from the EPA. Then a hot oil truck is generally used to fix
the problem. In short, the hot oil truck pumps in hot water to “thaw”
out the chemical and get everything pumping again. This costs
~US$ 2,000 per incident.
Spent triazine is used up in the Ultrafab: It is then dumped out of
the secondary vessel and generally pumped into the produced water
tank. Sometimes the dump line is tied into the produced water line
and carried to the water tank. This often results in calcite (calcium
carbonate) scale formation and plugging of the flowline at the point
of the tie-in. Most producers now run the dump line directly to
the water tank and dump it in over the top to aid in dispersing the
spent product more effectively and minimize calcite scale. However,
calcite can and does still sometimes form because the scale inhibitor
package used was sub-par or inadequate.
SCale InhIBITor SIGnIFICanTly
reduCeS rISk oF dumP lIne and
valve PluGGInG In The eaGle
Ford Play
champ-tech.com © 2012 Champion Technologies, Inc.
The Solution
Gas Treat® 165FB-F was formulated to overcome all of
these common issues. The product, consisting of a scale
inhibitor package and other additives, decreases the amount
of overspent triazine scale formation. If any calcite does
form, the Gas Treat® 165FB-F inhibitor acts to disperse the
triazine, disallowing accumulation.
The product has been winterized to prevent setting of the
inhibitor in the Ultrafab vessels. Champion Technologies also
utilizes a scale package for effective mitigation of calcite
scale in flowlines and tanks. Because triazine scavengers
possess very high pH levels, they can significantly impact
calcite scaling issues.
Value
Champion Technologies saved the operator thousands of
dollars in cost avoidance through:
• Hot watering not being required during the winter to wash
out chemical that set up. This resulted in US$ 2,000
dollars cost avoidance.
• Additionally, most of the Ultrafab units for this operator
require either 250-450 gallons to fill the vessel for
operation. When vessels are hot watered due to chemical
setting up, it requires replacing the chemical in the
vessel which is very costly. Gas Treat® 165FB-F helped to
minimize associated costs.
• No dump lines have plugged since implementing Gas Treat®
165FB-F, saving operators money associated with crews
remediating and/or replacing plugged flowlines.
• No gas production was lost through gas flaring due to
Ultrafab units requiring repair or non-routine maintenance.
Learn more at champ-tech.com
Reduction �uid
column
Mixed gas �uid
Gas outlet
Dump valve
Co
nta
cto
r
Gas inlet
Spent sample point
1st chemical pump
2nd chemical pump
H2S monitor
Vessel plugging during the winter due to poorly winterized product
Calcite scale issues in tanks and �owlines when spent product is comingled with produced water and stored or disposed of.
Vertic
al se
pa
rato
r
Plugging issues due to over-spent triazine
M