China National Logging Company
PROFESSIONAL TRAINING

Sensor types
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10.
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11.
Block Height
Hook load
Stand pipe pressure / casing pressure
Rotary torque
Pit volume
Rotary table speed and pump stroke speed
Mud temperature
Mud density
Mud conductivity
Mud flow out
H
2
S Sensor
MUDLOGGING SENSORS

1. Block Height
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Monitor the position of the traveling block, operate as ROP indicator (Measure depth)
Sensor type: Encoder
Rated power supply: +8vDC(Drillbyte Made in China)
Output: pulse
Measure range: 0 ～ 55 m (180 ft)
Resolution: 11 mm (0.4 in)
Accuracy:
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0.5% FSD
Signal output ： Chart recorder, computer, alarms
Location: drawworks
MUDLOGGING SENSORS

1. Block Height
MUDLOGGING SENSORS

1. Block Height
MUDLOGGING SENSORS

2. Hookload System
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Measure the tension on the cable from drawwork.
Location: deadline
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Range: 0-7 MPa
Power supply: 24
VDC
Output: 4-20 mA
Working T: -40OC ~
85OC
Attention: high pressure! Install and change when drill string on slip.
MUDLOGGING SENSORS

3. SPP System / Casing Pressure
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Range ： SPP 0 ~ 42MPa, CSP
0 ~ 68MPa
Power supply: 24VDC
Output ： 4 ~ 20 mA
· Precision ：± 0.25%
Working temperature ： -40 O C
~ 80 O C
Attention: high pressure risk source, when Install and change, check with driller, pressure is “Zero”.
MUDLOGGING SENSORS

4. Rotary torque system-electric TORQ
 Working T: -20 o C ~ 70 o C
 Range: 0-1000A
 Precision: ± 0.25%
 Power supply ： ≤18VDC
 Output ： 0 ~ 3VDC
MUDLOGGING SENSORS

4. Rotary torque system-mechanical TORQ
Stress of chains
Stress of chain
Hydraulic pressure
Transducer
0-7MPa Pressure sensor signal
Working parameter same as Hook Load sensor.
Attention: high pressure! Install and change when RPM zero, rotary table stop revolution.
MUDLOGGING SENSORS

5. Pit level sensor
MUDLOGGING SENSORS

5. Pit level sensor
MUDLOGGING SENSORS

6. RPM/SPM
MUDLOGGING SENSORS

7. Mud temperature system
MUDLOGGING SENSORS

8. Mud Density Measuring System
MUDLOGGING SENSORS

8. Mud Density Measuring System
 Working T: -40 o C ~ 80 o C
 Range: 0-3 g/cm 3
 Resolution: 0.01 g/cm 3
 Power supply ： 24VDC
 Output ： 4 ~ 20 mA
MUDLOGGING SENSORS

9. Mud Conductivity Measuring System
 Working T: -25 o C ~ 70 o C
 Range: 0 ~ 16 S/M
 Precision ：± 5% FSD
 Power supply ： 24VDC
 Output ： 4 ~ 20 mA
MUDLOGGING SENSORS

10. Mud flow out( paddle) system
 Measure range ： 0 ~100%
 Working T ： -20 o C ~
100 o C
 Maximum angle ： 45 o
 Output ： 60 Ohm≥R≥930
Ohm
MUDLOGGING SENSORS

11. H2S sensor
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Technical Data ：
Sensor type: electrochemical
Measure range: 0 ～ 100 ppm
Outside temperature: － 40 ～ 70 ℃
Accuracy: 2 ppm
Signal output: Computer, alarms
Location: Rig floor, shale shaker, caller, mud logging unit
Attention: pay attention to protect sensor head from water and vapour.
MUDLOGGING SENSORS

MUDLOGGING SENSORS