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  • Permanent downhole real-time monitoring of pressure and temperature.

  • The product possesses no electron components, with capability of temperature resistance and reliability; it realizes permanent monitoring in environment of super-high temperature and super-high pressure;
  • ŸGreat performance of vibration and shock resistance;
  • It may realize sealing in the environment of high pressure, high temperature and high corrosion;
  • ŸAll the sealing applies metal sealing rings of gilded highly nickel base alloy steel, with great resistance against temperature, pressure and corrosion, avoiding risks of corrosion and degradation;
  • ŸThe material selection standard of NACE MR0175-2009 allows the product be applicable to environment with corrosive medium.


  • The special material applied in the sensing unit may solve the problem of sensor drift caused by material creep, realizing zero drift of long-term operating in the environment of 300℃;
  • An accuracy of <3psi and a sensitivity of 0.1psi for the whole range;
  • The reliability of sensor is greatly improved, and it may operate permanently in the severe well conditions of high temperature, pressure and corrosivity;
  • Double-deck redundant sealing design for all the sealing steps, which means that all paths that has the possibility of leakage will be sealed with double-deck metal, one for current application, the other for standby usage;
  • ŸAll the sealing steps have the design of pressure testing port, which allows ground pressure test before being tripped into well, testing the external pressure for all pressure sealing steps, to make sure the sealing is qualified, and avoid risks of sealing failure in well;
  • It has looseness-preventable design for all the fastening parts of sealing and connecting, which may avoid looseness caused by vibration and shock, guaranteeing the reliability of sealing.


Operating temperature(℃)

RT~150/RT~175/RT~230

Maximum temperature resistance(℃)

200,2hrs/250,6hrs

Operating pressure(MPa)

0-10000

0-15000

0-20000

Maximum pressure resistance(psi)

12000

18000

22000

Diameter(mm)

25.4(1")

30.5(1.2")

Length(mm)

910

Vibration resistance(g)

15g,80Hz half sin

Shock resistance(g)

500

Weight(kg)

2.8

3.9

Material

316L/3Cr13/Inconel825/Inconel718



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