Case Study

CA SE STU DY
Successful stage cementing operations
using Saltel Expandable Steel Packers run
and worked in deviated well
www.saltel-industries.com
context
S o l ut i o n
Coal Seam Gas
A 2-well campaign was conducted using
Saltel Industries Expandable ECPs
Shallow losses zones
<800m / 2,600ft
Client encountered frequent losses zones
while drilling and needed to perform onestage and two-stage cementing operations
SES ECP is a proprietary expandable
steel packer specially designed for stage
cementing applications. SES ECP 7in
is a robust, simple and cost-effective
barrier providing reliable ground for stage
cementing operation.
104°F (40°C) - 140°F (60°C)
Packers had to be set either in Cased or
OpenHole and needed to withstand difficult
running conditions in deviated wells and
under gauged holes. The possibility to
rotate and put weight on the packer during
RIH is therefore essential.
Con text
Queensland, Australia
Depth
Downhole Temperature
7in casing cemented in
•8-3/4in openhole
•9-5/8in casing
solution
•Simple setting process compatible with
operator’s current string design and
procedures
•Quick installation time
•Can be worked in doglegs or tight spots
•Can be rotated while RIH
•High sealing capability in cased hole or
openhole
7in SES ECP
Expandable Stainless Steel
8.2in - 208.2mm
RIH OD
4.1ft - 1.24m
Sealing length
Up to 10in
Expansion
operational
characteristics
Total Loss Zone
2,200psi / 15.2MPa
Setting Pressure
2,400psi / 16.5MPa
Opening of stage collar
15min
Expansion duration
Benefits
• Compatible with any stage
cementing configuration
• Robust design allows RIH in
under-gauge hole
• Simplified running & setting
• No risk of premature
expansion
• Cement successfully pumped
to surface
1st Well
Two-stage cement job
Expandable ECP set in 9-5/8in casing
Total Loss Zone
2nd Well
One-stage cement job
Expandable ECP set in 8-3/4in OH
Results
1st Well – Two-stage cement job
2nd Well – One Stage cement job
The 1st packer was successfully expanded
in the vertical cased section of a deviated
well at 300m - 984.2ft. Packer has been
set in a 9-5/8in 36ppf casing (ID 8.921in).
Cement has been pumped above the packer
and circulated back to surface.
The 2nd packer was placed at the very
bottom of the string for a one-stage
cement job above a loss zone. The casing
was worked for 6 hours attempting to go
through under-gauge hole (String weight
UP/SO, 70klbs/26klbs). When pulling the
casing back to surface, the SES ECP showed
no signs of deformation. It was run back
and successfully set in nominal 8-3/4in
Openhole (with potential washout).
SIQ1187_AB - Mar2016