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Multi-finger Imaging Tool(24-Finger & 40-finger)


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Overview

The Multi-finger Imaging Tool  has been designed to accurately measure the inner diameter of casing and present the corrosion and scale deposition. The sensing section consists of 40 displacement sensors, which are uniformly distributed on the outer circumference, with each sensor able to measure the slightest variation in diameter. The tool also includes an inclination sensor and a rotation sensor.
The interpretation software is available for presenting the actual condition of the inner wall in a three-dimensional view, and the engineering data of casing are calculated and recorded.

Application

· Corrosion assessment
· Deformation evaluation
· Perforation mapping
· Well construction determination
· Accurate location of holes or anomalies

Features

· Wide range of pipe sizes measurable
· Ease of finger replacement
· SRO/memory modes

Specifications


 
24-Fingers
40-finger

Model

MCT08

MCT30
MCT28

Cable

Mono-conductor

Mono-conductor Mono-conductor

Max Working Tempeature

175°C (350°F)             

175°C (350°F)  175°C (350°F) 

Max Working Pressure

100MPa (15000psi)
100MPa (15000psi) 100MPa (15000psi)

OD

43m m (1 11/16")                    
73mm (2 7/8")
73mm (2 7/8")

Shipping Length

1430m m (56.30")
1574mm (61.97")
1629mm (64.13")

Make-up Length

1335m m (52.56")                
1479mm (58.23")
1534mm (60.39")

Weight

Around 8.5kg (18.74lbs)

Around 22kg (48.9lbs)
Around 25kg (55.13lbs)

Operating Voltage

13VDC - 23VDC (Typical 18VDC)    

13VDC - 23VDC (Typical 18VDC)
13VDC - 23VDC (Typical 18VDC)

Operating Current

< 30mA

< 30mA < 30mA

Motoring Current

< 300mA                      

< 400mA
< 400mA

Motor Switch Time

< 10 mins

< 10mins
< 10mins

Logging Speed

 

   

Recommended

9.1m/min (30ft/min)

9.1m/min (30ft/min)
9.1m/min (30ft/min)

Max

18.3m/min (60ft/min)

18.2m/min (60ft/min)
18.2m/min (60ft/min)

Measuring Range

 

   

Short Fingers

45m m (1 3/4") - 114m m (4 1/2")
73mm (2.9") - 190.5mm (7 1/2")
73mm (2.9") - 190.5mm (7 1/2")

Long Fingers

45m m (1 3/4") - 178m m (7")
(Not Applicable)
 
73mm (2.9") - 244.5mm (9 5/8")

Radial Measurement Accuracy

 

   

Short Fingers

±0.76mm (0.03")                

±0.76mm (0.03″)
±0.76mm (0.03″)

Long Fingers

±0.76mm (0.03")                     

(Not Applicable)
 1.27mm (0.05")
 

Radial Measurement Resolution

 

   

Short Fingers

0.076mm (0.003”)

 0.076mm (0.003″)
 
0.076mm (0.003″)

Long Fingers

±0.76mm (0.03")  

(Not Applicable)
0.127mm (0.005″)

Rotation Accuracy

±5° (Inclination 5-100°)             

±5° (Inclination 5-100°)  ±5° (Inclination 5-100°) 

Inclination Accuracy

±5° (Inclination 5-60°)

±5° (Inclination 5-60°) ±5° (Inclination 5-60°)

Circumferential Spacing between Fingers

 

   

Max

7": 23.1m m (0.91")
7 1/2": 14.7mm (0.59")
9 5/8": 19.2mm (0.76")

Min

1 3/4": 5.84m m (0.23")
2.9":5.7mm (0.22")
2.9":5.7mm (0.22")

Finger Tip Width

Typical 1.19m m (0.047")

Typical 1.4mm (0.055")
Typical 1.4mm (0.055")

Finger Tip Radius

Typical 0.99m m (0.039")           

Typical 1.5mm (0.059")
Typical 1.5mm (0.059")

Finger Contact Force

 

   

Min

0.34kg (0.75lbs)

0.34kg (0.75lbs)
0.34kg (0.75lbs)

Max

0.56kg (1.25lbs)

0.56kg (1.25lbs)
0.56kg (1.25lbs)

Threads

1 3/16-12 UN GO (female/male)            
KWDJ-GoA-1A
KWDJ-GoA-1A

24-Fingers


40-Fingers



60-Fingers


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