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CONTENTSCONTENTS
Who am I ?Who am I ?
Hydraulically expandable liner hanger Hydraulically expandable liner hanger Zonal isolation barriers(ZIB)Zonal isolation barriers(ZIB)
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Tool designed for expansion of concentricTool designed for expansion of concentric--
down hole tubular by use of directdown hole tubular by use of direct
hydraulic pressure.hydraulic pressure.
Hydraulically Expanded Liner Hydraulically Expanded Liner
Hanger Hanger
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Field requirementsField requirements
drilling with casing to a measured depth of drilling with casing to a measured depth of
more than 12,000 ft with up to 70more than 12,000 ft with up to 70°°deviation,deviation,
then conversion of 7 3/4then conversion of 7 3/4--in. casingin. casing--drillingdrilling
string to a liner string to a liner
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How it was used?How it was used?
The liner hanger assembly was set at 5,000 ft inThe liner hanger assembly was set at 5,000 ft in
the 10 3/4the 10 3/4--in. parent casing.in. parent casing.
With the drill bit at a depth of 7,000 ft, the liner With the drill bit at a depth of 7,000 ft, the liner
hanger was installed as part of the drilling string.hanger was installed as part of the drilling string. The string then drilled ahead to the 7 3/4The string then drilled ahead to the 7 3/4--in.in.
shoe depth at 12,000 ft.shoe depth at 12,000 ft.
The casing shoe was cemented, and theThe casing shoe was cemented, and the
expansion tool then was run into the well onexpansion tool then was run into the well ondrillpipedrillpipe and engaged in the liner hanger with anand engaged in the liner hanger with an
integralintegral--latch device.latch device.
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The system was activated by generatingThe system was activated by generating
21,500 psi hydraulic pressure (above21,500 psi hydraulic pressure (above
hydrostatic)hydrostatic) expanded the diameter of the 11expanded the diameter of the 11--ftft--longlong
hanger by 15%, thus ³setting´ it in the 10hanger by 15%, thus ³setting´ it in the 10
3/43/4--in. parent casing..in. parent casing..
Then tool is pressure tested for itsThen tool is pressure tested for its
effectiveness.effectiveness.
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advantagesadvantages
The operator achieved improved wellThe operator achieved improved well
integrity, along with higher productionintegrity, along with higher production
rates than would have been possible usingrates than would have been possible usinga scaba scab--liner solution, which would haveliner solution, which would have
reduced the well diameter.reduced the well diameter.
Using the liner was a simple operation thatUsing the liner was a simple operation that
required less rig time and deliveredrequired less rig time and deliveredimproved seal performance.improved seal performance.
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The ZIB can be activated by applyingThe ZIB can be activated by applying
pressure from the surface to the entirepressure from the surface to the entire
completioncompletionor or
by deploying a hydraulicby deploying a hydraulic--expandableexpandable--
tubular tubular--system tool by means of system tool by means of wirelinewireline,,coiled tubing, or coiled tubing, or drillpipedrillpipe..
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Basic principleBasic principle
when pressure is applied to the inside of when pressure is applied to the inside of
the liner, the metal outer sleeve will inflatethe liner, the metal outer sleeve will inflate
and conform to the profile of the formationand conform to the profile of the formation
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WHERE IT IS USED?WHERE IT IS USED?
To provide a 6 5/8¶¶ liner zonal isolation solutionTo provide a 6 5/8¶¶ liner zonal isolation solution
for fracture operations in an 8.5´ open holefor fracture operations in an 8.5´ open hole
applicationapplication
goal of achieving maximum formation contactgoal of achieving maximum formation contact
pressure which would maintain isolation duringpressure which would maintain isolation during
high pressure FRAC operations..high pressure FRAC operations..
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IllustrationIllustration
ZIB installed and run with completion
ZIBs expanded by pressure Expanded sleeve
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Key featuresKey features
Metal expandable sleeve provides long termMetal expandable sleeve provides long term
resistance to flowresistance to flow
Zonal isolation up to 4,000 psi(hydrostaticZonal isolation up to 4,000 psi(hydrostatic
well pressure or well on production)well pressure or well on production)
Zonal isolation up to 10,000 psiZonal isolation up to 10,000 psi
(during injection or fracture / stimulation(during injection or fracture / stimulation
operations)operations)
ISO 14310 qualification (V3)ISO 14310 qualification (V3)
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Key featuresKey features
High anchor force to formation, resistsHigh anchor force to formation, resists
temperature associated tubular movementtemperature associated tubular movement
Metal barrier not degraded by producedMetal barrier not degraded by produced
fluidsfluids
Suitable for use in all fluid environments, inSuitable for use in all fluid environments, in
both injection and production wellsboth injection and production wells
Optional high chrome constructionOptional high chrome construction
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Key featuresKey features
Large expansion ratio (up to 40%) onLarge expansion ratio (up to 40%) on
diameter with minimal increase on liner /diameter with minimal increase on liner / csgcsg..
O.D. during deploymentO.D. during deployment
Expansion as and when required, immediateExpansion as and when required, immediateor after several yearsor after several years
ReRe--expansion at a future date is possible if expansion at a future date is possible if
the formation is washed out and crossthe formation is washed out and cross--flowflow
is seenis seen
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Application Application
Zonal Isolation during production,Zonal Isolation during production,
injection or fracture operationsinjection or fracture operations
Aids in achieving cement lessAids in achieving cement lesscompletionscompletions