The document summarizes a demonstration well project that used an enhanced casing installation (ECI) system with a high strength composite tubular (HSCT) section. The HSCT allowed logging tools to make measurements from inside the cased well. The system successfully drilled a 200-meter deep well in the Czech Republic in 2015, meeting all pressure, strength and compatibility requirements for the ECI system.

1. CASE STUDY
PROJECT
Demonstration well
DESCRIPTION
The Enhanced Casing Installation (ECI) directional
casing drill system uses HSCT as unique see-
through shoe track section. The HSCT allows
logging tools (M&LWD) to remain inside the casing
while still being able to make measurements. This
casing drilling with HSCT technology results in a
minimum stick out below the casing offering
excellent stabilization with a minimum risk of stuck
pipe. The system drilled successfully in a 200-
meter-deep demonstration well in the Czech
Republic. The HSCT was handled by the rig without
problems.
COMPLETION DATE
2015
LOCATION
LOC 400, Huisman Konstrukce, Czech Republic
END USER
Huisman Well Technology
PRODUCT
7” High Strength Composite Tubular (HSCT)
2 x Composite to Steel X-overs
TOTAL QUANTITY (M)
Delivered 11 M, 8 M HSCT + 3 M x-over
INDUSTRY
All Industries: Oil & Gas, Geothermal, Salt
HSCT ADVANTAGES
Key advantages of the composite pipes are:
 Transparent for logging measurements
o Open hole tools usable in cased
hole e.g. magnetic surveying
o Time-lapse logging for advanced
reservoir modelling
 Corrosion resistant
o Longer well life
o No cement required for corrosion
protection
 Low weight (near buoyant in mud)
o Smaller rigs
o Longer horizontal sections
o Lower transport cost
o Air-lifts for remote locations
 Smooth surfaces
o Eliminating scaling
o Low flow resistance
APPLICATION
Enhanced Casing Installation (ECI) with HSCT
REQUIREMENTS
Internal Pressure :
External Pressure :
Tensile:
Compression:
Torsional:
Compatibility with ECI
Rig proof pipe handling
1650 psi
1650 psi
89 klbs
32 klbs
8260 ft.lbs
RESULT
ECI drilled successfully
All HSCT requirements met
CONTACT
Akiet BV
www.akiet.com
info@akiet.com
Betonstraat 8
8211 AE Lelystad
The Netherlands