Magnetic Thickness Detector (MTD)

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  • Price:

    Negotiable

  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:

    Beijing

  • Validity to:

    Long-term effective

  • Last update:

    2018-05-22 17:55

  • Browse the number:

    424

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Xi'an Sitan Instruments Co.,Ltd
Contactaixin:

Contactaixin:

somy450(Mr.)  

Email:

telephone:

phone:

Area:

Beijing

Address:

No.22, Keji 5th Road, High-tech Zone, Xi'an City, Shannxi, China

Website:

http://www.sitanpetro.com/ http://www.pampered2bits.com/com/somy450/

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Magnetic Thickness Detector (MTD)

SITAN DTS series Magnetic Thickness Detector (MTD) is used to detect the casing thickness, corrosion, deformation, cracks etc. in the oil tubing, indicating downhole tubular structure, tool location and detecting the ferromagnetic material (such as casing centralizers, surface casing, etc.) outside casing.

Due to the unique structure and measurement principle, SITAN DTS series Magnetic Thickness Detector can finish the logging tasks during normal production of oil and water wells, reducing operating cost in inspection and increasing efficiency, can timely judge the structural damage of cased wells.


Applications of SITAN DTS series Magnetic Thickness Detector:

1. SITAN MTD can identify crack-type defects (longitudinal and transversal joint), crack defects, pipe wall corrosion, mechanical wear section, explosion perforation section and the disjoint of sieve tube and collar.

2. Double column testing.

3. SITAN MTD can log the position of all collars of double column, getting the complete location image of all pipes along the well direction, and the location of casing shoe, packer and valve.

4. SITAN MTD can make logging without oil production stopping. The paraffin and cement block have no effect on the logging.

5. SITAN MTD can match with other casing logging instruments such as multi-finger imaging tool(MIT) , the combined results can reflect and explain the well condition. 


Features

1. Full function: The defects and thickness of oil tube and casing, temperature and nature gamma parameters, etc. can be measured in just one downhole trip.

2. Easy maintenance: simple mechanical structure, easy disassembly and easy maintenance.

3. Various operating modes: cascade connection, connection with multi-finger caliper(MFC), etc. or independent operating.


Specifications

Maximum temperature

177℃

Maximum pressure

103.4MPa(15000psi)

Tool OD

43mm(1.69in)

Tool length

2300mm

Tool weight

10Kgs

Operating voltage

(90±8) VDC/18VDC

Operating currency

(135±5)mA/(550±50)mA

Maximum logging speed

400m/h

Measuring range of pipe diameter

(62~324)mm(2.44in~12.75 in)

Measuring range of single pipe thickness

(3~12)mm(0.11in~12.75 in)

Total maximum thickness of double pipes

25 mm(0.98in)

Measuring error of single pipe thickness

0.5mm(0.019in)

Measuring error of casing through tubing

1.5mm(0.059in)

Minimum length of longitudinal damage

50mm(1.96in)   2.5in single pipe

70mm(2.75in)   5.5in single pipe

150mm(5.90in.)5.5in  casing through tubing

Minimum length of transversal damage

1/4   circumference

Minimum diameter hole damage

30mm(1.18in)

Measuring range of Gamma

(0~2000)cps

Gamma sensitivity

1cps

Measuring range of temperature

-40℃~177℃

Temperature resolution

0.1℃

Temperature accuracy

1℃

Housing material

TC4

      

Patent for invention of SITAN MTD


Case 

Case 1. Storage Gas Field (Reduced)

Chuanqing Gas Mine, sulfur content 8%

Instrument string: Memory Sub, 24 Arm MFC, EMDS

                             Figure1. SITAN MFC & MTD results


Case 2. Jilin well,there is a crack at 84m, and fracture at 92m.


Case 3. MFC imaging instrument connected with the EMDS (Shaanbeihua 297-2)

Casing collar damage at 1579m, different material above and below casing collar at 1589m.


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