spe-rgce learn the present

8/9/2019 SPE-RGCE Learn the Present

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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)



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



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



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.



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.



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.



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..



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



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..



IllustrationIllustration

ZIB installed and run with completion

ZIBs expanded by pressure Expanded sleeve



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)




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




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



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



THIS WAS THE PAPER PRESENTED

IN SPE-RGCE AT THE INAGURATION

N OF ³LEARN THE PRESENT´PROGRAM WHICH WAS CONDUCTED

ON FEBRUARY 2010. Mr.

THANGARASU K IS THE AUTHOR OF

THIS PAPER.

spe-rgce learn the present

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