| Short Section On Monitoring Of Drilling Parameters | ||
|---|---|---|
|
Size: 4.75″, 6.75″, 8.00″ |
Temperature: 150°C, 175°C |
Provide the true pressure value of the near drill bit |
|
Provide the true torque value of the near drill bit |
Provide the bending moment of the near drill bit |
Provide the bending angle of the near drill bit |
|
Provide the annular pressure value of the near drill bit |
Provide the water eye pressure in the tooling of the near drill bit |
Provide the temperature value at the near drill bit |
| Ingredient | ||
|---|---|---|
|
3 strain transducer compartments |
3 circuit board compartments |
Data communication port |
|
Upper and lower salvage section |
Upper and lower centre piercing retainer assembly |
|
| Process characteristics | ||
|---|---|---|
|
Selection of high-precision strain and temperature sensors |
Precise sensor position mounting |
Clean Room sensor assembly |
|
Factory calibration |
137 sets of pressure, temperature and load cut-off data calibration |
|
| Strain sensors - drilling pressure, torque, bending moment, bending angle | ||
|---|---|---|
|
120° uniform |
Strain sensors are subjected to tensile, torsional and bending forces. |
The sensor is subjected to a force that produces a corresponding strain. |
|
Strain causes the sensor to deform, increasing or decreasing its resistance. |
Each chamber contains axial and torsional Wheatstone bridges. |
The change in resistance in the Wheatstone bridge will be linearly related to the force applied. |
|
Sensor homogenisation and multiple Wheatstone bridges improve measurement accuracy |
Shape design provides predictable and repeatable stress-strain behaviour |
|
| Calibration process | |
|---|---|
|
Tensile and compressive load calibration |
NIST” compliant loading device |
|
Bending moment load calibration |
|
|
Torque cut load calibration |
|
|
Zero lifting |
WOB lifting zero calibration |
| Short Section On Monitoring Of Drilling Parameters | ||
|---|---|---|
|
Size: 4.75″ |
Drilling pressure measurement: ±30 Klbs |
Borehole: 5.25″ – 6.50″ |
|
Maximum size: 5.245″ |
Torque measurement: ±14 Kftibs |
Temperature: 150°C, 175°C |
|
Salvage size: 4.90″ |
Bending moment training: ±11 Kftibs |
Pressure: 20KPsi |
|
Inside Diameter: 1.50″ |
Accuracy: ±5% absolute |
Maximum Survival Pressure: 26.5KPsi |
|
Overall Length: 84.0″ |
Repeatability: ±1% absolute |
( Rotating ) Bend Radius: ≤12°/30m |
|
Buckle Type: 3.5 “IF BOX x 3.5 “IF BOX |
Resolution: 1% |
( Sliding ) Bend Radius: ≤24°/30m |
|
Memory: 32MB |
Annular pressure: 20 KPsi |
Material: P550 |
|
Water eye pressure: 20 KPsi |
Mode: Stored, MWD real-time transmission |
Accuracy value: 0.1% FSR |
| Short Section On Monitoring Of Drilling Parameters | ||
|---|---|---|
|
Size: 6.75″ |
Drilling pressure measurement: ±60 Klbs |
Borehole: 8.5″ – 9.875″ |
|
Maximum size: 7.25″ |
Torque measurement: ±30 Kftibs |
Temperature: 150°C, 175°C |
|
Salvage size: 6.91″ |
Bending moment training: ±30 Kftibs |
Pressure: 20KPsi |
|
Inside Diameter: 2.813″ |
Accuracy: ±5% absolute |
Maximum Survival Pressure: 26.5KPsi |
|
Overall Length: 84.0″ |
Repeatability: ±1% absolute |
( Rotating ) Bend Radius: ≤10°/30m |
|
Buckle Type: 4.5 “IF BOX x 4.5 “IF BOX |
Resolution: 1% |
( Sliding ) Bend Radius: ≤22°/30m |
|
Memory: 32MB |
Annular pressure: 20 KPsi |
Material: P550 |
|
Water eye pressure: 20 KPsi |
Mode: Stored, MWD real-time transmission |
Accuracy value: 0.1% FSR |
| Short Section On Monitoring Of Drilling Parameters | ||
|---|---|---|
|
Size: 8.00″ |
Drilling pressure measurement: ±100 Klbs |
orehole: 10.625″ – 17.5″ |
|
Maximum size: 8.22″ |
Torque measurement: ±50 Kftibs |
Temperature: 150°C, 175°C |
|
Salvage size: 8.00″ |
Bending moment training: ±45 Kftibs |
Pressure: 20KPsi |
|
Inside Diameter: 3.25″ |
Accuracy: ±5% absolute |
Maximum Survival Pressure: 26.5KPsi |
|
Overall Length: 92.5″ |
Repeatability: ±1% absolute |
( Rotating ) Bend Radius: ≤8°/30m |
|
Buckle Type: 6 5/8 “IF BOX x 6 5/8 “IF BOX |
Resolution: 1% |
( Sliding ) Bend Radius: ≤20°/30m |
|
Memory: 32MB |
Annular pressure: 20 KPsi |
Material: P550 |
|
Water eye pressure: 20 KPsi |
Mode: Stored, MWD real-time transmission |
Accuracy value: 0.1% FSR |
