TEC/PDC Flat Pack
TEC/PDC&Flat Pack Material Selection- TEC/PDC Flat Pack
TEC/PDC is the preferred special cable for permanent downhole monitoring and ESP power supply in the oil and gas industry.
It is perfectly suitable for harsh working conditions such as deep wells, sour (H₂S) wells and horizontal wells, greatly reducing downhole operation and failure risks.
It is perfectly suitable for harsh working conditions such as deep wells, sour (H₂S) wells and horizontal wells, greatly reducing downhole operation and failure risks.
|
Operates from -60°C to +260°C |
High Collapse Strength up to 20,000 PSI |
|
Fully Sealed, No Fluid/Gas Ingress |
Service Life 5–10 Years |
Purpose
Stationary downhole cable
Power supply for downhole monitoring and control systems
Signal transmission in submersible telemetry systems
Material of Tube
|
Material |
O.D. |
Wall Thickness |
Collapse Strength |
|
Inch |
Inch |
PSI |
|
|
316L |
1/4” |
0.028” |
16,000 |
|
1/4” |
0.035” |
19,600 |
|
|
1/4” |
0.049” |
26,000 |
|
|
Incoloy 8825 |
1/4” |
0.028” |
17,000 |
|
1/4” |
0.035” |
20,600 |
|
|
1/4” |
0.049” |
27,000 |
The maximum temperature limit for continuous operation is indicated based on the condition of maintaining cable functionality throughout itsservice life.
For the outer encapsulation, the actual service life is determined by the chemical and abrasive composition, temperature, and pressure of the surrounding gas-liquid medium.
When operating the cable in conditions to which the outer sheath has limited resistance, violation of its geometric dimensions and integrity is possible.
When selecting the cable sheath material, specific downhole conditions and the relative resistance of materials according to the table below must be considered.
Material of Encapsulation
|
Material |
Max. Temp. Rating ℃ °F |
IInhibited Brine Completion & Packer Fluidsi |
Oil/Diesel Completion & Packer Fluids |
Abrasion Resistance |
|
PP |
150 300 |
Excellent |
N/R |
Good |
|
PA11 |
135 275 |
N/R |
Good |
Excellent |
|
FEP |
200 392 |
Excellent |
Excellent |
Good |
|
SP |
140 284 |
Good |
N/R |
Good |
|
PVDF |
120 248 |
Good |
Excellent |
Excellent |
|
ETFE |
150 300 |
Excellent |
Excellent |
Excellent |
|
PFA |
260 500 |
Excellent |
Excellent |
Good |
